./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound1.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_valuebound1.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 0a70f1205afb9cca148fa8c17f899d7361834a55786fb03fe89056a7c6fb47c5 --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 19:46:02,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:46:02,421 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:46:02,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:46:02,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:46:02,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:46:02,456 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:46:02,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:46:02,457 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:46:02,458 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:46:02,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:46:02,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:46:02,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:46:02,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:46:02,460 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:46:02,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:46:02,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:46:02,460 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:46:02,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:46:02,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:46:02,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:46:02,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:46:02,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:46:02,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:46:02,466 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:46:02,467 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:46:02,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:46:02,467 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:46:02,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:46:02,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:46:02,468 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:46:02,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:46:02,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:46:02,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:46:02,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:46:02,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:46:02,472 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:46:02,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:46:02,473 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:46:02,473 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:46:02,473 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:46:02,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:46:02,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a70f1205afb9cca148fa8c17f899d7361834a55786fb03fe89056a7c6fb47c5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:46:02,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:46:02,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:46:02,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:46:02,807 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:46:02,808 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:46:02,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound1.c [2024-09-12 19:46:04,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:46:04,514 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:46:04,515 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound1.c [2024-09-12 19:46:04,525 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/a7f7d067b/f0b506c4de804e4c9b4143b6d267d782/FLAG9612271c6 [2024-09-12 19:46:04,542 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/a7f7d067b/f0b506c4de804e4c9b4143b6d267d782 [2024-09-12 19:46:04,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:46:04,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:46:04,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:46:04,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:46:04,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:46:04,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5451e6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04, skipping insertion in model container [2024-09-12 19:46:04,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,575 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:46:04,750 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_valuebound1.c[520,533] [2024-09-12 19:46:04,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:46:04,785 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:46:04,797 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_valuebound1.c[520,533] [2024-09-12 19:46:04,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:46:04,822 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:46:04,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04 WrapperNode [2024-09-12 19:46:04,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:46:04,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:46:04,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:46:04,825 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:46:04,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,845 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:46:04,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:46:04,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:46:04,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:46:04,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:46:04,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,858 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,883 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 19:46:04,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,893 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:46:04,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:46:04,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:46:04,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:46:04,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (1/1) ... [2024-09-12 19:46:04,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:46:04,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:04,935 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 19:46:04,938 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 19:46:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:46:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:46:04,974 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:46:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:46:04,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:46:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:46:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:46:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:46:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:46:04,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:46:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:46:04,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:46:05,033 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:46:05,035 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:46:05,433 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-09-12 19:46:05,435 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:46:05,464 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:46:05,465 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:46:05,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:46:05 BoogieIcfgContainer [2024-09-12 19:46:05,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:46:05,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:46:05,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:46:05,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:46:05,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:46:04" (1/3) ... [2024-09-12 19:46:05,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c1b50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:46:05, skipping insertion in model container [2024-09-12 19:46:05,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:46:04" (2/3) ... [2024-09-12 19:46:05,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c1b50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:46:05, skipping insertion in model container [2024-09-12 19:46:05,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:46:05" (3/3) ... [2024-09-12 19:46:05,475 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound1.c [2024-09-12 19:46:05,491 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:46:05,492 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 51 error locations. [2024-09-12 19:46:05,553 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:46:05,561 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;@5e43626f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:46:05,562 INFO L337 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-09-12 19:46:05,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 64 states have (on average 1.875) internal successors, (120), 115 states have internal predecessors, (120), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:46:05,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 19:46:05,574 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:05,575 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:05,575 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:05,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:05,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2017850654, now seen corresponding path program 1 times [2024-09-12 19:46:05,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:05,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829186075] [2024-09-12 19:46:05,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:05,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,727 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 19:46:05,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:05,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829186075] [2024-09-12 19:46:05,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829186075] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:05,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:05,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:46:05,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831778238] [2024-09-12 19:46:05,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:05,736 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:46:05,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:05,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:46:05,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:46:05,764 INFO L87 Difference]: Start difference. First operand has 129 states, 64 states have (on average 1.875) internal successors, (120), 115 states have internal predecessors, (120), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:46:05,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:05,812 INFO L93 Difference]: Finished difference Result 246 states and 273 transitions. [2024-09-12 19:46:05,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:46:05,815 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 19:46:05,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:05,823 INFO L225 Difference]: With dead ends: 246 [2024-09-12 19:46:05,824 INFO L226 Difference]: Without dead ends: 121 [2024-09-12 19:46:05,829 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:46:05,833 INFO L434 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:05,836 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:46:05,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-09-12 19:46:05,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-09-12 19:46:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 62 states have (on average 1.7741935483870968) internal successors, (110), 109 states have internal predecessors, (110), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:46:05,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2024-09-12 19:46:05,890 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 13 [2024-09-12 19:46:05,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:05,891 INFO L474 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2024-09-12 19:46:05,891 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:46:05,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:05,892 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2024-09-12 19:46:05,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 19:46:05,894 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:05,894 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:05,894 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:46:05,894 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:05,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:05,895 INFO L85 PathProgramCache]: Analyzing trace with hash 2075108951, now seen corresponding path program 1 times [2024-09-12 19:46:05,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:05,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582449543] [2024-09-12 19:46:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:05,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,010 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 19:46:06,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:06,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582449543] [2024-09-12 19:46:06,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582449543] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:06,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:06,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:46:06,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673697205] [2024-09-12 19:46:06,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:06,015 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:46:06,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:06,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:46:06,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:46:06,016 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:46:06,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:06,199 INFO L93 Difference]: Finished difference Result 217 states and 228 transitions. [2024-09-12 19:46:06,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:46:06,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 19:46:06,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:06,203 INFO L225 Difference]: With dead ends: 217 [2024-09-12 19:46:06,203 INFO L226 Difference]: Without dead ends: 197 [2024-09-12 19:46:06,203 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 19:46:06,205 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 69 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:06,205 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 184 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:06,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-09-12 19:46:06,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 161. [2024-09-12 19:46:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 98 states have (on average 1.6122448979591837) internal successors, (158), 145 states have internal predecessors, (158), 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 19:46:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 182 transitions. [2024-09-12 19:46:06,231 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 182 transitions. Word has length 13 [2024-09-12 19:46:06,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:06,231 INFO L474 AbstractCegarLoop]: Abstraction has 161 states and 182 transitions. [2024-09-12 19:46:06,231 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:46:06,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 182 transitions. [2024-09-12 19:46:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 19:46:06,232 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:06,233 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:06,233 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:46:06,233 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:06,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:06,234 INFO L85 PathProgramCache]: Analyzing trace with hash -2007119241, now seen corresponding path program 1 times [2024-09-12 19:46:06,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:06,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29822627] [2024-09-12 19:46:06,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:06,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,480 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 19:46:06,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:06,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29822627] [2024-09-12 19:46:06,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29822627] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:06,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:06,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:46:06,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884747345] [2024-09-12 19:46:06,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:06,481 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:46:06,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:06,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:46:06,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:46:06,482 INFO L87 Difference]: Start difference. First operand 161 states and 182 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:46:06,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:06,755 INFO L93 Difference]: Finished difference Result 191 states and 213 transitions. [2024-09-12 19:46:06,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:46:06,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-09-12 19:46:06,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:06,757 INFO L225 Difference]: With dead ends: 191 [2024-09-12 19:46:06,757 INFO L226 Difference]: Without dead ends: 183 [2024-09-12 19:46:06,760 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 19:46:06,761 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 50 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:06,765 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 228 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:06,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-09-12 19:46:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2024-09-12 19:46:06,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 109 states have (on average 1.5596330275229358) internal successors, (170), 156 states have internal predecessors, (170), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:46:06,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 196 transitions. [2024-09-12 19:46:06,802 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 196 transitions. Word has length 20 [2024-09-12 19:46:06,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:06,802 INFO L474 AbstractCegarLoop]: Abstraction has 174 states and 196 transitions. [2024-09-12 19:46:06,802 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:46:06,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 196 transitions. [2024-09-12 19:46:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 19:46:06,805 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:06,805 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, 1, 1, 1] [2024-09-12 19:46:06,806 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:46:06,806 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:06,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:06,807 INFO L85 PathProgramCache]: Analyzing trace with hash 15167293, now seen corresponding path program 1 times [2024-09-12 19:46:06,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:06,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126759004] [2024-09-12 19:46:06,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:06,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:46:06,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306694203] [2024-09-12 19:46:06,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:06,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:06,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:06,841 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 19:46:06,844 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 19:46:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:46:06,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:07,039 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 19:46:07,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:46:07,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:07,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126759004] [2024-09-12 19:46:07,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:07,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306694203] [2024-09-12 19:46:07,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306694203] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:07,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:07,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:46:07,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033692466] [2024-09-12 19:46:07,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:07,046 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:46:07,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:07,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:46:07,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:46:07,047 INFO L87 Difference]: Start difference. First operand 174 states and 196 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 19:46:07,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:07,301 INFO L93 Difference]: Finished difference Result 195 states and 210 transitions. [2024-09-12 19:46:07,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:46:07,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 31 [2024-09-12 19:46:07,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:07,305 INFO L225 Difference]: With dead ends: 195 [2024-09-12 19:46:07,305 INFO L226 Difference]: Without dead ends: 183 [2024-09-12 19:46:07,306 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 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 19:46:07,307 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 40 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:07,309 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 267 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:07,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-09-12 19:46:07,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 181. [2024-09-12 19:46:07,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 115 states have (on average 1.4695652173913043) internal successors, (169), 162 states have internal predecessors, (169), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:46:07,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 195 transitions. [2024-09-12 19:46:07,333 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 195 transitions. Word has length 31 [2024-09-12 19:46:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:07,333 INFO L474 AbstractCegarLoop]: Abstraction has 181 states and 195 transitions. [2024-09-12 19:46:07,333 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 19:46:07,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:07,334 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 195 transitions. [2024-09-12 19:46:07,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 19:46:07,335 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:07,335 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] [2024-09-12 19:46:07,348 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 19:46:07,538 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:07,539 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:07,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:07,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1721654121, now seen corresponding path program 1 times [2024-09-12 19:46:07,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:07,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032897998] [2024-09-12 19:46:07,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:07,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:07,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:07,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:07,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:07,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:07,680 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 19:46:07,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:07,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032897998] [2024-09-12 19:46:07,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032897998] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:07,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:07,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:46:07,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564155973] [2024-09-12 19:46:07,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:07,681 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:46:07,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:07,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:46:07,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:46:07,682 INFO L87 Difference]: Start difference. First operand 181 states and 195 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 19:46:07,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:07,861 INFO L93 Difference]: Finished difference Result 191 states and 206 transitions. [2024-09-12 19:46:07,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:46:07,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 38 [2024-09-12 19:46:07,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:07,863 INFO L225 Difference]: With dead ends: 191 [2024-09-12 19:46:07,864 INFO L226 Difference]: Without dead ends: 187 [2024-09-12 19:46:07,864 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:46:07,865 INFO L434 NwaCegarLoop]: 89 mSDtfsCounter, 48 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:07,865 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 241 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:07,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-09-12 19:46:07,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2024-09-12 19:46:07,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 117 states have (on average 1.4444444444444444) internal successors, (169), 164 states have internal predecessors, (169), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:46:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 195 transitions. [2024-09-12 19:46:07,887 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 195 transitions. Word has length 38 [2024-09-12 19:46:07,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:07,898 INFO L474 AbstractCegarLoop]: Abstraction has 183 states and 195 transitions. [2024-09-12 19:46:07,898 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 19:46:07,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:07,898 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 195 transitions. [2024-09-12 19:46:07,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 19:46:07,899 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:07,899 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, 1, 1, 1] [2024-09-12 19:46:07,899 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 19:46:07,900 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:07,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:07,900 INFO L85 PathProgramCache]: Analyzing trace with hash -269824659, now seen corresponding path program 1 times [2024-09-12 19:46:07,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:07,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109762182] [2024-09-12 19:46:07,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:07,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,030 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 19:46:08,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:08,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109762182] [2024-09-12 19:46:08,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109762182] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:08,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:08,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:46:08,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058518942] [2024-09-12 19:46:08,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:08,033 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:46:08,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:08,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:46:08,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:46:08,034 INFO L87 Difference]: Start difference. First operand 183 states and 195 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 19:46:08,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:08,148 INFO L93 Difference]: Finished difference Result 189 states and 198 transitions. [2024-09-12 19:46:08,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:46:08,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 42 [2024-09-12 19:46:08,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:08,150 INFO L225 Difference]: With dead ends: 189 [2024-09-12 19:46:08,150 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 19:46:08,151 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 19:46:08,153 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 30 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:08,153 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 164 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:08,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 19:46:08,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 184. [2024-09-12 19:46:08,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 118 states have (on average 1.4152542372881356) internal successors, (167), 165 states have internal predecessors, (167), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:46:08,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 193 transitions. [2024-09-12 19:46:08,181 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 193 transitions. Word has length 42 [2024-09-12 19:46:08,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:08,183 INFO L474 AbstractCegarLoop]: Abstraction has 184 states and 193 transitions. [2024-09-12 19:46:08,183 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 19:46:08,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 193 transitions. [2024-09-12 19:46:08,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 19:46:08,185 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:08,185 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, 1, 1, 1] [2024-09-12 19:46:08,187 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 19:46:08,188 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:08,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:08,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1761231325, now seen corresponding path program 1 times [2024-09-12 19:46:08,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:08,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219536232] [2024-09-12 19:46:08,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:08,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:46:08,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318438021] [2024-09-12 19:46:08,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:08,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:08,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:08,218 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 19:46:08,220 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 19:46:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:46:08,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:08,448 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 19:46:08,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:46:08,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:08,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219536232] [2024-09-12 19:46:08,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:08,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318438021] [2024-09-12 19:46:08,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318438021] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:08,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:08,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:46:08,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593468468] [2024-09-12 19:46:08,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:08,451 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:46:08,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:08,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:46:08,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:46:08,452 INFO L87 Difference]: Start difference. First operand 184 states and 193 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 19:46:08,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:08,603 INFO L93 Difference]: Finished difference Result 191 states and 199 transitions. [2024-09-12 19:46:08,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:46:08,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 48 [2024-09-12 19:46:08,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:08,606 INFO L225 Difference]: With dead ends: 191 [2024-09-12 19:46:08,606 INFO L226 Difference]: Without dead ends: 164 [2024-09-12 19:46:08,606 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 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 19:46:08,607 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 30 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 348 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 19:46:08,607 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 348 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-09-12 19:46:08,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-09-12 19:46:08,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 99 states have (on average 1.4848484848484849) internal successors, (147), 146 states have internal predecessors, (147), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:46:08,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 169 transitions. [2024-09-12 19:46:08,620 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 169 transitions. Word has length 48 [2024-09-12 19:46:08,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:08,620 INFO L474 AbstractCegarLoop]: Abstraction has 164 states and 169 transitions. [2024-09-12 19:46:08,621 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 19:46:08,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:08,623 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 169 transitions. [2024-09-12 19:46:08,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:46:08,624 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:08,624 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, 1, 1] [2024-09-12 19:46:08,645 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 19:46:08,825 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 19:46:08,825 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:08,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:08,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1694709195, now seen corresponding path program 1 times [2024-09-12 19:46:08,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:08,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002164500] [2024-09-12 19:46:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:08,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 19:46:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,932 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 19:46:08,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:08,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002164500] [2024-09-12 19:46:08,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002164500] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:08,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:08,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:46:08,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754998373] [2024-09-12 19:46:08,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:08,934 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:46:08,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:08,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:46:08,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:46:08,935 INFO L87 Difference]: Start difference. First operand 164 states and 169 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:09,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:09,059 INFO L93 Difference]: Finished difference Result 167 states and 173 transitions. [2024-09-12 19:46:09,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:46:09,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 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 55 [2024-09-12 19:46:09,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:09,061 INFO L225 Difference]: With dead ends: 167 [2024-09-12 19:46:09,061 INFO L226 Difference]: Without dead ends: 166 [2024-09-12 19:46:09,062 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:46:09,062 INFO L434 NwaCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:09,063 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 238 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:09,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-09-12 19:46:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2024-09-12 19:46:09,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 100 states have (on average 1.48) internal successors, (148), 147 states have internal predecessors, (148), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:46:09,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 170 transitions. [2024-09-12 19:46:09,074 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 170 transitions. Word has length 55 [2024-09-12 19:46:09,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:09,074 INFO L474 AbstractCegarLoop]: Abstraction has 165 states and 170 transitions. [2024-09-12 19:46:09,074 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:09,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 170 transitions. [2024-09-12 19:46:09,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 19:46:09,075 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:09,076 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, 1, 1, 1] [2024-09-12 19:46:09,076 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 19:46:09,076 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:09,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:09,076 INFO L85 PathProgramCache]: Analyzing trace with hash 996377611, now seen corresponding path program 1 times [2024-09-12 19:46:09,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:09,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648039226] [2024-09-12 19:46:09,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:09,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 19:46:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,202 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 19:46:09,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:09,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648039226] [2024-09-12 19:46:09,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648039226] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:09,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:09,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:46:09,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450407998] [2024-09-12 19:46:09,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:09,203 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:46:09,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:09,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:46:09,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:46:09,210 INFO L87 Difference]: Start difference. First operand 165 states and 170 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:09,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:09,324 INFO L93 Difference]: Finished difference Result 167 states and 172 transitions. [2024-09-12 19:46:09,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:46:09,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 1 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 56 [2024-09-12 19:46:09,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:09,326 INFO L225 Difference]: With dead ends: 167 [2024-09-12 19:46:09,326 INFO L226 Difference]: Without dead ends: 166 [2024-09-12 19:46:09,326 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:46:09,327 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:09,327 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:09,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-09-12 19:46:09,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-09-12 19:46:09,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 101 states have (on average 1.4752475247524752) internal successors, (149), 148 states have internal predecessors, (149), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:46:09,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 171 transitions. [2024-09-12 19:46:09,341 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 171 transitions. Word has length 56 [2024-09-12 19:46:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:09,342 INFO L474 AbstractCegarLoop]: Abstraction has 166 states and 171 transitions. [2024-09-12 19:46:09,342 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:09,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 171 transitions. [2024-09-12 19:46:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:46:09,345 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:09,345 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, 1, 1, 1] [2024-09-12 19:46:09,346 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:46:09,346 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:09,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:09,346 INFO L85 PathProgramCache]: Analyzing trace with hash -258821107, now seen corresponding path program 1 times [2024-09-12 19:46:09,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:09,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076314692] [2024-09-12 19:46:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:09,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 19:46:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,453 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 19:46:09,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:09,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076314692] [2024-09-12 19:46:09,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076314692] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:09,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830209670] [2024-09-12 19:46:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:09,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:09,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:09,461 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 19:46:09,465 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 19:46:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:46:09,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:09,571 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 19:46:09,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:46:09,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830209670] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:09,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:46:09,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:46:09,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168519184] [2024-09-12 19:46:09,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:09,573 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:46:09,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:09,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:46:09,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:46:09,575 INFO L87 Difference]: Start difference. First operand 166 states and 171 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:09,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:09,658 INFO L93 Difference]: Finished difference Result 166 states and 171 transitions. [2024-09-12 19:46:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:46:09,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (6), 1 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 58 [2024-09-12 19:46:09,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:09,669 INFO L225 Difference]: With dead ends: 166 [2024-09-12 19:46:09,669 INFO L226 Difference]: Without dead ends: 157 [2024-09-12 19:46:09,669 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:46:09,670 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 122 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:09,670 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 139 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:09,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-09-12 19:46:09,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2024-09-12 19:46:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 101 states have (on average 1.386138613861386) internal successors, (140), 139 states have internal predecessors, (140), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:46:09,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 162 transitions. [2024-09-12 19:46:09,686 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 162 transitions. Word has length 58 [2024-09-12 19:46:09,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:09,687 INFO L474 AbstractCegarLoop]: Abstraction has 157 states and 162 transitions. [2024-09-12 19:46:09,687 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:09,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:09,688 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 162 transitions. [2024-09-12 19:46:09,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 19:46:09,690 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:09,690 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, 1, 1, 1] [2024-09-12 19:46:09,707 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 19:46:09,891 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 19:46:09,891 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:09,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:09,892 INFO L85 PathProgramCache]: Analyzing trace with hash 566480333, now seen corresponding path program 1 times [2024-09-12 19:46:09,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:09,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459930426] [2024-09-12 19:46:09,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:09,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 19:46:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,972 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 19:46:09,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:09,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459930426] [2024-09-12 19:46:09,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459930426] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:09,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563990497] [2024-09-12 19:46:09,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:09,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:09,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:09,974 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 19:46:09,976 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 19:46:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:46:10,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:10,063 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 19:46:10,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:10,145 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 19:46:10,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563990497] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:10,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:10,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:46:10,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004772423] [2024-09-12 19:46:10,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:10,146 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:46:10,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:10,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:46:10,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:46:10,147 INFO L87 Difference]: Start difference. First operand 157 states and 162 transitions. Second operand has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 19:46:10,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:10,301 INFO L93 Difference]: Finished difference Result 253 states and 281 transitions. [2024-09-12 19:46:10,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:46:10,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 59 [2024-09-12 19:46:10,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:10,304 INFO L225 Difference]: With dead ends: 253 [2024-09-12 19:46:10,304 INFO L226 Difference]: Without dead ends: 244 [2024-09-12 19:46:10,305 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:46:10,305 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 183 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:10,306 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 240 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:10,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-09-12 19:46:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 148. [2024-09-12 19:46:10,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 101 states have (on average 1.297029702970297) internal successors, (131), 130 states have internal predecessors, (131), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:46:10,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 153 transitions. [2024-09-12 19:46:10,331 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 153 transitions. Word has length 59 [2024-09-12 19:46:10,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:10,331 INFO L474 AbstractCegarLoop]: Abstraction has 148 states and 153 transitions. [2024-09-12 19:46:10,331 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 19:46:10,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 153 transitions. [2024-09-12 19:46:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 19:46:10,332 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:10,333 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:10,349 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:46:10,533 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:10,534 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:10,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:10,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1485306879, now seen corresponding path program 1 times [2024-09-12 19:46:10,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:10,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981803405] [2024-09-12 19:46:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:10,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 19:46:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,708 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:46:10,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:10,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981803405] [2024-09-12 19:46:10,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981803405] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:10,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656344576] [2024-09-12 19:46:10,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:10,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:10,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:10,712 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 19:46:10,714 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 19:46:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:46:10,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:46:10,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:11,033 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:46:11,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656344576] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:11,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:46:11,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 11 [2024-09-12 19:46:11,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945232843] [2024-09-12 19:46:11,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:11,034 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:46:11,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:11,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:46:11,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:46:11,035 INFO L87 Difference]: Start difference. First operand 148 states and 153 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:12,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:12,306 INFO L93 Difference]: Finished difference Result 154 states and 158 transitions. [2024-09-12 19:46:12,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:46:12,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 65 [2024-09-12 19:46:12,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:12,308 INFO L225 Difference]: With dead ends: 154 [2024-09-12 19:46:12,308 INFO L226 Difference]: Without dead ends: 152 [2024-09-12 19:46:12,308 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 135 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:46:12,309 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 30 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:12,309 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 138 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 19:46:12,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-09-12 19:46:12,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-09-12 19:46:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 104 states have (on average 1.2884615384615385) internal successors, (134), 133 states have internal predecessors, (134), 12 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:46:12,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2024-09-12 19:46:12,329 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 65 [2024-09-12 19:46:12,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:12,329 INFO L474 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2024-09-12 19:46:12,329 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:12,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:12,330 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2024-09-12 19:46:12,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 19:46:12,330 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:12,331 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:12,349 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:12,535 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:46:12,536 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:12,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:12,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1940709059, now seen corresponding path program 1 times [2024-09-12 19:46:12,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:12,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382785425] [2024-09-12 19:46:12,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:12,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:46:12,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826201257] [2024-09-12 19:46:12,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:12,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:12,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:12,558 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 19:46:12,559 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 19:46:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:46:12,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:12,662 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:46:12,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:12,789 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:46:12,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:12,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382785425] [2024-09-12 19:46:12,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:12,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826201257] [2024-09-12 19:46:12,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826201257] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:12,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:46:12,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 19:46:12,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072894401] [2024-09-12 19:46:12,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:12,792 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:46:12,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:12,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:46:12,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:46:12,793 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 19:46:13,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:13,039 INFO L93 Difference]: Finished difference Result 333 states and 354 transitions. [2024-09-12 19:46:13,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:46:13,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 72 [2024-09-12 19:46:13,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:13,042 INFO L225 Difference]: With dead ends: 333 [2024-09-12 19:46:13,042 INFO L226 Difference]: Without dead ends: 331 [2024-09-12 19:46:13,042 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 19:46:13,043 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 241 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:13,043 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 373 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:13,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-09-12 19:46:13,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 229. [2024-09-12 19:46:13,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 175 states have (on average 1.3485714285714285) internal successors, (236), 203 states have internal predecessors, (236), 19 states have call successors, (19), 8 states have call predecessors, (19), 7 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:46:13,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 272 transitions. [2024-09-12 19:46:13,112 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 272 transitions. Word has length 72 [2024-09-12 19:46:13,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:13,113 INFO L474 AbstractCegarLoop]: Abstraction has 229 states and 272 transitions. [2024-09-12 19:46:13,113 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 19:46:13,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:13,113 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 272 transitions. [2024-09-12 19:46:13,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 19:46:13,114 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:13,115 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:13,132 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:46:13,315 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:46:13,316 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:13,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:13,316 INFO L85 PathProgramCache]: Analyzing trace with hash 19053427, now seen corresponding path program 2 times [2024-09-12 19:46:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:13,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595398049] [2024-09-12 19:46:13,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:13,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:46:13,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602606455] [2024-09-12 19:46:13,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:46:13,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:13,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:13,332 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 19:46:13,334 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 19:46:13,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:46:13,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:13,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:46:13,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:46:13,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:13,869 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:46:13,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:13,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595398049] [2024-09-12 19:46:13,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:13,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602606455] [2024-09-12 19:46:13,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602606455] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:13,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:46:13,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-09-12 19:46:13,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523744034] [2024-09-12 19:46:13,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:13,871 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:46:13,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:13,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:46:13,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:46:13,872 INFO L87 Difference]: Start difference. First operand 229 states and 272 transitions. Second operand has 17 states, 17 states have (on average 6.0) internal successors, (102), 16 states have internal predecessors, (102), 6 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2024-09-12 19:46:14,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:14,738 INFO L93 Difference]: Finished difference Result 270 states and 313 transitions. [2024-09-12 19:46:14,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:46:14,739 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 16 states have internal predecessors, (102), 6 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) Word has length 76 [2024-09-12 19:46:14,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:14,741 INFO L225 Difference]: With dead ends: 270 [2024-09-12 19:46:14,741 INFO L226 Difference]: Without dead ends: 215 [2024-09-12 19:46:14,743 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 19:46:14,744 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 135 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:14,744 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 205 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:46:14,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-09-12 19:46:14,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2024-09-12 19:46:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 173 states have (on average 1.1676300578034682) internal successors, (202), 188 states have internal predecessors, (202), 18 states have call successors, (18), 9 states have call predecessors, (18), 8 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:46:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 237 transitions. [2024-09-12 19:46:14,810 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 237 transitions. Word has length 76 [2024-09-12 19:46:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:14,810 INFO L474 AbstractCegarLoop]: Abstraction has 215 states and 237 transitions. [2024-09-12 19:46:14,811 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 16 states have internal predecessors, (102), 6 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2024-09-12 19:46:14,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 237 transitions. [2024-09-12 19:46:14,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-09-12 19:46:14,812 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:14,812 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:14,828 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 19:46:15,012 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:15,013 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:15,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:15,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1400509823, now seen corresponding path program 1 times [2024-09-12 19:46:15,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:15,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032290511] [2024-09-12 19:46:15,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:15,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 19:46:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,088 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-09-12 19:46:15,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:15,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032290511] [2024-09-12 19:46:15,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032290511] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:15,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:15,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:46:15,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780391520] [2024-09-12 19:46:15,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:15,089 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:46:15,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:15,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:46:15,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:46:15,090 INFO L87 Difference]: Start difference. First operand 215 states and 237 transitions. Second operand has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:46:15,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:15,182 INFO L93 Difference]: Finished difference Result 215 states and 237 transitions. [2024-09-12 19:46:15,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:46:15,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 98 [2024-09-12 19:46:15,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:15,185 INFO L225 Difference]: With dead ends: 215 [2024-09-12 19:46:15,185 INFO L226 Difference]: Without dead ends: 212 [2024-09-12 19:46:15,185 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 19:46:15,186 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 41 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:15,186 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 71 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:46:15,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-09-12 19:46:15,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-09-12 19:46:15,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 173 states have (on average 1.1329479768786128) internal successors, (196), 185 states have internal predecessors, (196), 18 states have call successors, (18), 9 states have call predecessors, (18), 8 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:46:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 231 transitions. [2024-09-12 19:46:15,261 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 231 transitions. Word has length 98 [2024-09-12 19:46:15,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:15,261 INFO L474 AbstractCegarLoop]: Abstraction has 212 states and 231 transitions. [2024-09-12 19:46:15,261 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:46:15,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:15,262 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 231 transitions. [2024-09-12 19:46:15,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:46:15,262 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:15,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:15,262 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 19:46:15,263 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:15,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:15,263 INFO L85 PathProgramCache]: Analyzing trace with hash 466131667, now seen corresponding path program 1 times [2024-09-12 19:46:15,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:15,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484425675] [2024-09-12 19:46:15,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:15,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 19:46:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,316 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-09-12 19:46:15,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:15,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484425675] [2024-09-12 19:46:15,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484425675] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:15,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:15,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:46:15,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288626986] [2024-09-12 19:46:15,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:15,317 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:46:15,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:15,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:46:15,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:46:15,318 INFO L87 Difference]: Start difference. First operand 212 states and 231 transitions. Second operand has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:46:15,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:15,405 INFO L93 Difference]: Finished difference Result 212 states and 231 transitions. [2024-09-12 19:46:15,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:46:15,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 99 [2024-09-12 19:46:15,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:15,407 INFO L225 Difference]: With dead ends: 212 [2024-09-12 19:46:15,407 INFO L226 Difference]: Without dead ends: 207 [2024-09-12 19:46:15,407 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 19:46:15,408 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 38 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:15,408 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 89 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:46:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-09-12 19:46:15,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-09-12 19:46:15,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 171 states have (on average 1.0994152046783625) internal successors, (188), 180 states have internal predecessors, (188), 18 states have call successors, (18), 9 states have call predecessors, (18), 8 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:46:15,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 223 transitions. [2024-09-12 19:46:15,467 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 223 transitions. Word has length 99 [2024-09-12 19:46:15,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:15,467 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 223 transitions. [2024-09-12 19:46:15,467 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:46:15,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:15,468 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 223 transitions. [2024-09-12 19:46:15,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 19:46:15,468 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:15,469 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, 1, 1, 1] [2024-09-12 19:46:15,469 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 19:46:15,469 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:15,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:15,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1275936917, now seen corresponding path program 1 times [2024-09-12 19:46:15,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:15,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849763681] [2024-09-12 19:46:15,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:15,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 19:46:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,594 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:46:15,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:15,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849763681] [2024-09-12 19:46:15,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849763681] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:15,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612428428] [2024-09-12 19:46:15,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:15,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:15,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:15,596 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 19:46:15,598 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 19:46:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:46:15,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:15,858 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:46:15,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:46:16,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612428428] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:16,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:16,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-09-12 19:46:16,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923495622] [2024-09-12 19:46:16,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:16,001 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:46:16,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:16,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:46:16,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=104, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:46:16,003 INFO L87 Difference]: Start difference. First operand 207 states and 223 transitions. Second operand has 14 states, 13 states have (on average 14.692307692307692) internal successors, (191), 14 states have internal predecessors, (191), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 19:46:16,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:16,348 INFO L93 Difference]: Finished difference Result 265 states and 298 transitions. [2024-09-12 19:46:16,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:46:16,349 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.692307692307692) internal successors, (191), 14 states have internal predecessors, (191), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 101 [2024-09-12 19:46:16,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:16,350 INFO L225 Difference]: With dead ends: 265 [2024-09-12 19:46:16,350 INFO L226 Difference]: Without dead ends: 264 [2024-09-12 19:46:16,351 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=156, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:46:16,351 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 65 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:16,351 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 321 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:16,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-09-12 19:46:16,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 228. [2024-09-12 19:46:16,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 190 states have (on average 1.105263157894737) internal successors, (210), 199 states have internal predecessors, (210), 20 states have call successors, (20), 9 states have call predecessors, (20), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:46:16,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 249 transitions. [2024-09-12 19:46:16,412 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 249 transitions. Word has length 101 [2024-09-12 19:46:16,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:16,412 INFO L474 AbstractCegarLoop]: Abstraction has 228 states and 249 transitions. [2024-09-12 19:46:16,412 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.692307692307692) internal successors, (191), 14 states have internal predecessors, (191), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 19:46:16,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:16,413 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 249 transitions. [2024-09-12 19:46:16,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 19:46:16,414 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:16,414 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:16,431 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 19:46:16,618 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:16,619 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 19:46:16,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:16,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1746440613, now seen corresponding path program 1 times [2024-09-12 19:46:16,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:16,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337590459] [2024-09-12 19:46:16,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:16,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:46:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:46:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:46:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 19:46:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 19:46:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 19:46:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 36 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:16,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:16,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337590459] [2024-09-12 19:46:16,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337590459] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:16,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588223027] [2024-09-12 19:46:16,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:16,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:16,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:16,884 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 19:46:16,886 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 19:46:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:46:16,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-09-12 19:46:17,312 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:17,482 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 36 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:17,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588223027] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:17,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:17,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-09-12 19:46:17,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088974551] [2024-09-12 19:46:17,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:17,483 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:46:17,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:17,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:46:17,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:46:17,485 INFO L87 Difference]: Start difference. First operand 228 states and 249 transitions. Second operand has 16 states, 16 states have (on average 12.3125) internal successors, (197), 14 states have internal predecessors, (197), 8 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 10 states have call predecessors, (25), 8 states have call successors, (25) [2024-09-12 19:46:17,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:17,646 INFO L93 Difference]: Finished difference Result 236 states and 255 transitions. [2024-09-12 19:46:17,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:46:17,647 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.3125) internal successors, (197), 14 states have internal predecessors, (197), 8 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 10 states have call predecessors, (25), 8 states have call successors, (25) Word has length 124 [2024-09-12 19:46:17,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:17,648 INFO L225 Difference]: With dead ends: 236 [2024-09-12 19:46:17,648 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:46:17,649 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:46:17,649 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 23 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:17,650 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 241 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:17,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:46:17,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:46:17,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 19:46:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:46:17,651 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 124 [2024-09-12 19:46:17,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:17,651 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:46:17,651 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.3125) internal successors, (197), 14 states have internal predecessors, (197), 8 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 10 states have call predecessors, (25), 8 states have call successors, (25) [2024-09-12 19:46:17,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:17,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:46:17,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:46:17,654 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 51 remaining) [2024-09-12 19:46:17,655 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 51 remaining) [2024-09-12 19:46:17,655 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 51 remaining) [2024-09-12 19:46:17,655 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 51 remaining) [2024-09-12 19:46:17,655 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 51 remaining) [2024-09-12 19:46:17,655 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 51 remaining) [2024-09-12 19:46:17,655 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 51 remaining) [2024-09-12 19:46:17,656 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 51 remaining) [2024-09-12 19:46:17,656 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 51 remaining) [2024-09-12 19:46:17,656 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 51 remaining) [2024-09-12 19:46:17,656 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 51 remaining) [2024-09-12 19:46:17,656 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 51 remaining) [2024-09-12 19:46:17,656 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 51 remaining) [2024-09-12 19:46:17,656 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 51 remaining) [2024-09-12 19:46:17,656 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 51 remaining) [2024-09-12 19:46:17,657 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 51 remaining) [2024-09-12 19:46:17,657 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 51 remaining) [2024-09-12 19:46:17,657 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 51 remaining) [2024-09-12 19:46:17,657 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 51 remaining) [2024-09-12 19:46:17,657 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 51 remaining) [2024-09-12 19:46:17,658 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 51 remaining) [2024-09-12 19:46:17,658 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 51 remaining) [2024-09-12 19:46:17,658 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 51 remaining) [2024-09-12 19:46:17,658 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 51 remaining) [2024-09-12 19:46:17,658 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 51 remaining) [2024-09-12 19:46:17,658 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 51 remaining) [2024-09-12 19:46:17,659 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 51 remaining) [2024-09-12 19:46:17,659 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 51 remaining) [2024-09-12 19:46:17,659 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 51 remaining) [2024-09-12 19:46:17,659 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 51 remaining) [2024-09-12 19:46:17,659 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 51 remaining) [2024-09-12 19:46:17,660 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 51 remaining) [2024-09-12 19:46:17,660 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 51 remaining) [2024-09-12 19:46:17,660 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 51 remaining) [2024-09-12 19:46:17,660 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 51 remaining) [2024-09-12 19:46:17,660 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 51 remaining) [2024-09-12 19:46:17,660 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 51 remaining) [2024-09-12 19:46:17,660 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 51 remaining) [2024-09-12 19:46:17,661 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 51 remaining) [2024-09-12 19:46:17,661 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 51 remaining) [2024-09-12 19:46:17,661 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 51 remaining) [2024-09-12 19:46:17,661 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 51 remaining) [2024-09-12 19:46:17,661 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 51 remaining) [2024-09-12 19:46:17,662 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 51 remaining) [2024-09-12 19:46:17,662 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 51 remaining) [2024-09-12 19:46:17,662 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 51 remaining) [2024-09-12 19:46:17,662 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 51 remaining) [2024-09-12 19:46:17,662 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 51 remaining) [2024-09-12 19:46:17,662 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 51 remaining) [2024-09-12 19:46:17,663 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 51 remaining) [2024-09-12 19:46:17,663 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 51 remaining) [2024-09-12 19:46:17,680 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:46:17,866 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:46:17,869 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:17,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:46:19,160 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:46:19,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:46:19 BoogieIcfgContainer [2024-09-12 19:46:19,175 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:46:19,175 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:46:19,175 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:46:19,175 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:46:19,176 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:46:05" (3/4) ... [2024-09-12 19:46:19,177 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:46:19,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:46:19,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-09-12 19:46:19,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:46:19,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:46:19,185 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-09-12 19:46:19,185 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 19:46:19,185 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:46:19,185 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:46:19,274 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:46:19,274 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:46:19,274 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:46:19,275 INFO L158 Benchmark]: Toolchain (without parser) took 14728.00ms. Allocated memory was 67.1MB in the beginning and 188.7MB in the end (delta: 121.6MB). Free memory was 36.2MB in the beginning and 156.4MB in the end (delta: -120.2MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2024-09-12 19:46:19,275 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 50.3MB. Free memory is still 32.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:46:19,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.31ms. Allocated memory is still 67.1MB. Free memory was 36.1MB in the beginning and 42.1MB in the end (delta: -6.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-09-12 19:46:19,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.19ms. Allocated memory is still 67.1MB. Free memory was 42.1MB in the beginning and 41.2MB in the end (delta: 875.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:46:19,276 INFO L158 Benchmark]: Boogie Preprocessor took 52.35ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 39.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:46:19,276 INFO L158 Benchmark]: RCFGBuilder took 566.55ms. Allocated memory is still 67.1MB. Free memory was 39.4MB in the beginning and 36.3MB in the end (delta: 3.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-09-12 19:46:19,276 INFO L158 Benchmark]: TraceAbstraction took 13707.43ms. Allocated memory was 67.1MB in the beginning and 188.7MB in the end (delta: 121.6MB). Free memory was 35.7MB in the beginning and 161.7MB in the end (delta: -126.0MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2024-09-12 19:46:19,277 INFO L158 Benchmark]: Witness Printer took 99.31ms. Allocated memory is still 188.7MB. Free memory was 161.7MB in the beginning and 156.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 19:46:19,278 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 50.3MB. Free memory is still 32.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.31ms. Allocated memory is still 67.1MB. Free memory was 36.1MB in the beginning and 42.1MB in the end (delta: -6.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.19ms. Allocated memory is still 67.1MB. Free memory was 42.1MB in the beginning and 41.2MB in the end (delta: 875.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.35ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 39.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 566.55ms. Allocated memory is still 67.1MB. Free memory was 39.4MB in the beginning and 36.3MB in the end (delta: 3.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 13707.43ms. Allocated memory was 67.1MB in the beginning and 188.7MB in the end (delta: 121.6MB). Free memory was 35.7MB in the beginning and 161.7MB in the end (delta: -126.0MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. * Witness Printer took 99.31ms. Allocated memory is still 188.7MB. Free memory was 161.7MB in the beginning and 156.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 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 5 procedures, 129 locations, 51 error locations. Started 1 CEGAR loops. OverallTime: 12.3s, OverallIterations: 18, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1204 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1146 mSDsluCounter, 3857 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2429 mSDsCounter, 180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3405 IncrementalHoareTripleChecker+Invalid, 3585 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 180 mSolverCounterUnsat, 1428 mSDtfsCounter, 3405 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1333 GetRequests, 1236 SyntacticMatches, 2 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=13, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 18 MinimizatonAttempts, 287 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1702 NumberOfCodeBlocks, 1702 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1943 ConstructedInterpolants, 0 QuantifiedInterpolants, 8057 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1148 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 29 InterpolantComputations, 13 PerfectInterpolantSequences, 1067/1334 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 51 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((a == 0) && (t == 1)) && (s == 1)) && (0 <= n)) && (n <= 1)) || (((((a == 1) && (0 <= n)) && (s == 4)) && (n <= 1)) && (t == 3))) - ProcedureContractResult [Line: 8]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (\old(cond) != 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 19:46:19,303 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE