./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.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/ps3-ll_valuebound5.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 41e3b99a8739a64ea08b115c1bc63941cba76a5cda04966369ff0f88d0ee65cc --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 19:36:36,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:36:36,883 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:36:36,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:36:36,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:36:36,927 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:36:36,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:36:36,928 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:36:36,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:36:36,930 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:36:36,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:36:36,934 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:36:36,935 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:36:36,935 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:36:36,935 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:36:36,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:36:36,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:36:36,936 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:36:36,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:36:36,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:36:36,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:36:36,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:36:36,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:36:36,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:36:36,942 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:36:36,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:36:36,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:36:36,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:36:36,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:36:36,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:36:36,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:36:36,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:36:36,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:36:36,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:36:36,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:36:36,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:36:36,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:36:36,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:36:36,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:36:36,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:36:36,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:36:36,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:36:36,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41e3b99a8739a64ea08b115c1bc63941cba76a5cda04966369ff0f88d0ee65cc Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:36:37,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:36:37,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:36:37,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:36:37,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:36:37,303 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:36:37,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c [2024-09-12 19:36:38,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:36:38,990 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:36:38,990 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c [2024-09-12 19:36:38,997 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/b86f5cb05/5f01b3cfb3904aaeab2cabddf7570515/FLAGb19161c66 [2024-09-12 19:36:39,008 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/b86f5cb05/5f01b3cfb3904aaeab2cabddf7570515 [2024-09-12 19:36:39,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:36:39,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:36:39,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:36:39,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:36:39,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:36:39,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f22c46d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39, skipping insertion in model container [2024-09-12 19:36:39,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:36:39,202 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/ps3-ll_valuebound5.c[458,471] [2024-09-12 19:36:39,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:36:39,242 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:36:39,264 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/ps3-ll_valuebound5.c[458,471] [2024-09-12 19:36:39,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:36:39,298 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:36:39,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39 WrapperNode [2024-09-12 19:36:39,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:36:39,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:36:39,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:36:39,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:36:39,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,321 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:36:39,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:36:39,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:36:39,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:36:39,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:36:39,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,333 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,350 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 19:36:39,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:36:39,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:36:39,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:36:39,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:36:39,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (1/1) ... [2024-09-12 19:36:39,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:36:39,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:39,403 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 19:36:39,409 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 19:36:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:36:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:36:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:36:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:36:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:36:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:36:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:36:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:36:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:36:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:36:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:36:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:36:39,520 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:36:39,522 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:36:39,853 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-09-12 19:36:39,853 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:36:39,883 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:36:39,884 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:36:39,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:36:39 BoogieIcfgContainer [2024-09-12 19:36:39,884 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:36:39,898 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:36:39,898 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:36:39,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:36:39,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:36:39" (1/3) ... [2024-09-12 19:36:39,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d9d091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:36:39, skipping insertion in model container [2024-09-12 19:36:39,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:36:39" (2/3) ... [2024-09-12 19:36:39,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d9d091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:36:39, skipping insertion in model container [2024-09-12 19:36:39,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:36:39" (3/3) ... [2024-09-12 19:36:39,903 INFO L112 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound5.c [2024-09-12 19:36:39,919 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:36:39,920 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2024-09-12 19:36:39,987 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:36:39,993 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;@7d3bc4cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:36:39,994 INFO L337 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-09-12 19:36:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 58 states have (on average 1.8620689655172413) internal successors, (108), 103 states have internal predecessors, (108), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:40,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 19:36:40,008 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:40,009 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:40,009 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:40,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:40,014 INFO L85 PathProgramCache]: Analyzing trace with hash -965623358, now seen corresponding path program 1 times [2024-09-12 19:36:40,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:40,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047573932] [2024-09-12 19:36:40,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:40,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,189 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 19:36:40,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:40,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047573932] [2024-09-12 19:36:40,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047573932] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:40,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:40,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:40,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798464583] [2024-09-12 19:36:40,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:40,197 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:36:40,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:40,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:36:40,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:36:40,218 INFO L87 Difference]: Start difference. First operand has 113 states, 58 states have (on average 1.8620689655172413) internal successors, (108), 103 states have internal predecessors, (108), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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 19:36:40,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:40,263 INFO L93 Difference]: Finished difference Result 213 states and 229 transitions. [2024-09-12 19:36:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:36:40,266 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 19:36:40,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:40,273 INFO L225 Difference]: With dead ends: 213 [2024-09-12 19:36:40,274 INFO L226 Difference]: Without dead ends: 104 [2024-09-12 19:36:40,276 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 19:36:40,279 INFO L434 NwaCegarLoop]: 107 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, 107 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 19:36:40,280 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:36:40,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-09-12 19:36:40,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-09-12 19:36:40,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 56 states have (on average 1.7321428571428572) internal successors, (97), 96 states have internal predecessors, (97), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:36:40,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions. [2024-09-12 19:36:40,331 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 13 [2024-09-12 19:36:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:40,331 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions. [2024-09-12 19:36:40,331 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 19:36:40,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:40,332 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions. [2024-09-12 19:36:40,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 19:36:40,332 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:40,333 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:40,333 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:36:40,333 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:40,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:40,333 INFO L85 PathProgramCache]: Analyzing trace with hash -908366977, now seen corresponding path program 1 times [2024-09-12 19:36:40,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:40,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156331477] [2024-09-12 19:36:40,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:40,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,475 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 19:36:40,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:40,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156331477] [2024-09-12 19:36:40,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156331477] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:40,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:40,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:40,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225576119] [2024-09-12 19:36:40,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:40,479 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:36:40,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:40,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:36:40,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:40,481 INFO L87 Difference]: Start difference. First operand 104 states and 105 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 19:36:40,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:40,678 INFO L93 Difference]: Finished difference Result 178 states and 194 transitions. [2024-09-12 19:36:40,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:40,679 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 19:36:40,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:40,681 INFO L225 Difference]: With dead ends: 178 [2024-09-12 19:36:40,681 INFO L226 Difference]: Without dead ends: 173 [2024-09-12 19:36:40,681 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 19:36:40,686 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 66 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:40,687 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 139 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:40,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-09-12 19:36:40,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 134. [2024-09-12 19:36:40,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 85 states have (on average 1.7176470588235293) internal successors, (146), 125 states have internal predecessors, (146), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2024-09-12 19:36:40,718 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 13 [2024-09-12 19:36:40,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:40,719 INFO L474 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2024-09-12 19:36:40,719 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 19:36:40,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:40,720 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2024-09-12 19:36:40,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 19:36:40,721 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:40,721 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:40,721 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:36:40,722 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:40,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:40,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1062301951, now seen corresponding path program 1 times [2024-09-12 19:36:40,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:40,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131749754] [2024-09-12 19:36:40,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:40,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:40,808 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 19:36:40,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:40,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131749754] [2024-09-12 19:36:40,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131749754] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:40,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:40,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:40,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669464968] [2024-09-12 19:36:40,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:40,811 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:36:40,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:40,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:36:40,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:40,813 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 19:36:41,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:41,034 INFO L93 Difference]: Finished difference Result 171 states and 187 transitions. [2024-09-12 19:36:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:41,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 15 [2024-09-12 19:36:41,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:41,037 INFO L225 Difference]: With dead ends: 171 [2024-09-12 19:36:41,037 INFO L226 Difference]: Without dead ends: 153 [2024-09-12 19:36:41,037 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 19:36:41,039 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 41 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:41,039 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 89 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:41,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-12 19:36:41,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 146. [2024-09-12 19:36:41,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 97 states have (on average 1.5463917525773196) internal successors, (150), 137 states have internal predecessors, (150), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:41,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 160 transitions. [2024-09-12 19:36:41,058 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 160 transitions. Word has length 15 [2024-09-12 19:36:41,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:41,059 INFO L474 AbstractCegarLoop]: Abstraction has 146 states and 160 transitions. [2024-09-12 19:36:41,059 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 19:36:41,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:41,060 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 160 transitions. [2024-09-12 19:36:41,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 19:36:41,060 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:41,060 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, 1] [2024-09-12 19:36:41,061 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:36:41,061 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:41,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:41,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1134487943, now seen corresponding path program 1 times [2024-09-12 19:36:41,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:41,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620713208] [2024-09-12 19:36:41,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:41,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:41,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:41,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:41,167 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 19:36:41,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:41,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620713208] [2024-09-12 19:36:41,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620713208] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:41,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:41,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:36:41,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139151513] [2024-09-12 19:36:41,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:41,169 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:41,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:41,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:41,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:41,170 INFO L87 Difference]: Start difference. First operand 146 states and 160 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 19:36:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:41,330 INFO L93 Difference]: Finished difference Result 161 states and 171 transitions. [2024-09-12 19:36:41,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:36:41,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 21 [2024-09-12 19:36:41,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:41,333 INFO L225 Difference]: With dead ends: 161 [2024-09-12 19:36:41,333 INFO L226 Difference]: Without dead ends: 155 [2024-09-12 19:36:41,333 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:41,334 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 83 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:41,334 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 123 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:41,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-12 19:36:41,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 149. [2024-09-12 19:36:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 100 states have (on average 1.5) internal successors, (150), 140 states have internal predecessors, (150), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:41,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 160 transitions. [2024-09-12 19:36:41,364 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 160 transitions. Word has length 21 [2024-09-12 19:36:41,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:41,368 INFO L474 AbstractCegarLoop]: Abstraction has 149 states and 160 transitions. [2024-09-12 19:36:41,369 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 19:36:41,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:41,369 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2024-09-12 19:36:41,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 19:36:41,370 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:41,370 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, 1, 1] [2024-09-12 19:36:41,373 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:36:41,373 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:41,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:41,374 INFO L85 PathProgramCache]: Analyzing trace with hash 809387939, now seen corresponding path program 1 times [2024-09-12 19:36:41,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:41,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649061625] [2024-09-12 19:36:41,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:41,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:41,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1933674143] [2024-09-12 19:36:41,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:41,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:41,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:41,406 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 19:36:41,407 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 19:36:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:41,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:36:41,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:41,548 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 19:36:41,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:41,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:41,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649061625] [2024-09-12 19:36:41,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:41,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933674143] [2024-09-12 19:36:41,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933674143] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:41,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:41,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:41,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583688721] [2024-09-12 19:36:41,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:41,551 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:36:41,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:41,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:36:41,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:41,552 INFO L87 Difference]: Start difference. First operand 149 states and 160 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 19:36:41,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:41,719 INFO L93 Difference]: Finished difference Result 159 states and 163 transitions. [2024-09-12 19:36:41,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:41,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 22 [2024-09-12 19:36:41,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:41,721 INFO L225 Difference]: With dead ends: 159 [2024-09-12 19:36:41,722 INFO L226 Difference]: Without dead ends: 153 [2024-09-12 19:36:41,723 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 19:36:41,724 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 34 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:41,724 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 89 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-12 19:36:41,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2024-09-12 19:36:41,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 101 states have (on average 1.4455445544554455) internal successors, (146), 141 states have internal predecessors, (146), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:41,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 156 transitions. [2024-09-12 19:36:41,740 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 156 transitions. Word has length 22 [2024-09-12 19:36:41,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:41,740 INFO L474 AbstractCegarLoop]: Abstraction has 150 states and 156 transitions. [2024-09-12 19:36:41,741 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 19:36:41,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:41,741 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 156 transitions. [2024-09-12 19:36:41,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:36:41,742 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:41,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:41,761 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 19:36:41,942 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:41,943 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:41,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:41,943 INFO L85 PathProgramCache]: Analyzing trace with hash -378714467, now seen corresponding path program 1 times [2024-09-12 19:36:41,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:41,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425627849] [2024-09-12 19:36:41,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:41,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:41,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469292077] [2024-09-12 19:36:41,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:41,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:41,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:41,971 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 19:36:41,973 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 19:36:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:36:42,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:42,150 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 19:36:42,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:42,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:42,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425627849] [2024-09-12 19:36:42,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:42,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469292077] [2024-09-12 19:36:42,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469292077] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:42,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:42,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:36:42,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258002062] [2024-09-12 19:36:42,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:42,152 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:36:42,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:42,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:36:42,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:42,152 INFO L87 Difference]: Start difference. First operand 150 states and 156 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 19:36:42,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:42,358 INFO L93 Difference]: Finished difference Result 159 states and 162 transitions. [2024-09-12 19:36:42,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:42,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 34 [2024-09-12 19:36:42,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:42,360 INFO L225 Difference]: With dead ends: 159 [2024-09-12 19:36:42,360 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 19:36:42,361 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 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 19:36:42,361 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 28 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:42,362 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 208 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:42,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 19:36:42,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2024-09-12 19:36:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 86 states have (on average 1.5116279069767442) internal successors, (130), 126 states have internal predecessors, (130), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2024-09-12 19:36:42,376 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 34 [2024-09-12 19:36:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:42,376 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2024-09-12 19:36:42,376 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 19:36:42,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2024-09-12 19:36:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 19:36:42,378 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:42,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:42,393 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:42,579 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:36:42,580 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:42,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:42,580 INFO L85 PathProgramCache]: Analyzing trace with hash 601306291, now seen corresponding path program 1 times [2024-09-12 19:36:42,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:42,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523999059] [2024-09-12 19:36:42,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:42,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,668 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 19:36:42,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:42,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523999059] [2024-09-12 19:36:42,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523999059] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:42,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:42,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:42,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246737336] [2024-09-12 19:36:42,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:42,676 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:36:42,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:42,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:36:42,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:42,677 INFO L87 Difference]: Start difference. First operand 136 states and 140 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:42,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:42,702 INFO L93 Difference]: Finished difference Result 138 states and 140 transitions. [2024-09-12 19:36:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:42,702 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2024-09-12 19:36:42,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:42,703 INFO L225 Difference]: With dead ends: 138 [2024-09-12 19:36:42,703 INFO L226 Difference]: Without dead ends: 136 [2024-09-12 19:36:42,704 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 19:36:42,704 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:42,705 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 197 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:36:42,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-09-12 19:36:42,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-09-12 19:36:42,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 86 states have (on average 1.4883720930232558) internal successors, (128), 126 states have internal predecessors, (128), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:36:42,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 138 transitions. [2024-09-12 19:36:42,714 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 138 transitions. Word has length 37 [2024-09-12 19:36:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:42,714 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 138 transitions. [2024-09-12 19:36:42,714 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:42,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 138 transitions. [2024-09-12 19:36:42,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 19:36:42,715 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:42,716 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, 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 19:36:42,716 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:36:42,716 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:42,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:42,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1649548523, now seen corresponding path program 1 times [2024-09-12 19:36:42,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:42,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032299316] [2024-09-12 19:36:42,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:42,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:42,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469804837] [2024-09-12 19:36:42,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:42,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:42,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:42,737 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 19:36:42,739 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 19:36:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:42,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:36:42,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:42,825 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 19:36:42,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:42,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:42,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032299316] [2024-09-12 19:36:42,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:42,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469804837] [2024-09-12 19:36:42,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469804837] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:42,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:42,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:36:42,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041646268] [2024-09-12 19:36:42,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:42,827 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:42,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:42,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:42,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:42,828 INFO L87 Difference]: Start difference. First operand 136 states and 138 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:43,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:43,030 INFO L93 Difference]: Finished difference Result 206 states and 222 transitions. [2024-09-12 19:36:43,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:36:43,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-09-12 19:36:43,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:43,032 INFO L225 Difference]: With dead ends: 206 [2024-09-12 19:36:43,032 INFO L226 Difference]: Without dead ends: 187 [2024-09-12 19:36:43,033 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 19:36:43,033 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 51 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:43,034 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 123 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:43,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-09-12 19:36:43,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 176. [2024-09-12 19:36:43,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 125 states have (on average 1.456) internal successors, (182), 165 states have internal predecessors, (182), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 194 transitions. [2024-09-12 19:36:43,051 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 194 transitions. Word has length 42 [2024-09-12 19:36:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:43,052 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 194 transitions. [2024-09-12 19:36:43,052 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:43,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 194 transitions. [2024-09-12 19:36:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 19:36:43,053 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:43,054 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, 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 19:36:43,067 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:43,254 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 19:36:43,254 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:43,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:43,255 INFO L85 PathProgramCache]: Analyzing trace with hash -373194857, now seen corresponding path program 1 times [2024-09-12 19:36:43,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:43,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571989950] [2024-09-12 19:36:43,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:43,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:43,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:43,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:43,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:43,348 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 19:36:43,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:43,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571989950] [2024-09-12 19:36:43,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571989950] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:43,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:43,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:36:43,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189701241] [2024-09-12 19:36:43,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:43,349 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:43,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:43,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:43,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:43,350 INFO L87 Difference]: Start difference. First operand 176 states and 194 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:43,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:43,508 INFO L93 Difference]: Finished difference Result 177 states and 194 transitions. [2024-09-12 19:36:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:36:43,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2024-09-12 19:36:43,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:43,510 INFO L225 Difference]: With dead ends: 177 [2024-09-12 19:36:43,510 INFO L226 Difference]: Without dead ends: 176 [2024-09-12 19:36:43,510 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 19:36:43,511 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 23 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:43,511 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 171 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:43,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-09-12 19:36:43,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-09-12 19:36:43,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 125 states have (on average 1.448) internal successors, (181), 165 states have internal predecessors, (181), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:43,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 193 transitions. [2024-09-12 19:36:43,523 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 193 transitions. Word has length 44 [2024-09-12 19:36:43,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:43,523 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 193 transitions. [2024-09-12 19:36:43,523 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:43,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:43,524 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 193 transitions. [2024-09-12 19:36:43,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:36:43,524 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:43,525 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:43,525 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:36:43,525 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:43,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:43,525 INFO L85 PathProgramCache]: Analyzing trace with hash 2136997017, now seen corresponding path program 1 times [2024-09-12 19:36:43,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:43,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414677316] [2024-09-12 19:36:43,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:43,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:43,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363382038] [2024-09-12 19:36:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:43,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:43,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:43,557 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 19:36:43,559 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 19:36:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:43,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:36:43,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:43,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-12 19:36:43,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:43,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:43,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414677316] [2024-09-12 19:36:43,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:43,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363382038] [2024-09-12 19:36:43,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363382038] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:43,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:43,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:36:43,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273222046] [2024-09-12 19:36:43,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:43,668 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:36:43,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:43,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:36:43,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:36:43,669 INFO L87 Difference]: Start difference. First operand 176 states and 193 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:43,753 INFO L93 Difference]: Finished difference Result 176 states and 193 transitions. [2024-09-12 19:36:43,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:43,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-09-12 19:36:43,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:43,755 INFO L225 Difference]: With dead ends: 176 [2024-09-12 19:36:43,755 INFO L226 Difference]: Without dead ends: 173 [2024-09-12 19:36:43,755 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 1 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 19:36:43,756 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 40 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:43,756 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 83 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:43,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-09-12 19:36:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-09-12 19:36:43,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 125 states have (on average 1.408) internal successors, (176), 162 states have internal predecessors, (176), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:43,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 188 transitions. [2024-09-12 19:36:43,771 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 188 transitions. Word has length 46 [2024-09-12 19:36:43,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:43,771 INFO L474 AbstractCegarLoop]: Abstraction has 173 states and 188 transitions. [2024-09-12 19:36:43,771 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:43,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:43,772 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 188 transitions. [2024-09-12 19:36:43,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:36:43,772 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:43,773 INFO L216 NwaCegarLoop]: trace histogram [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 19:36:43,790 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 19:36:43,976 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:43,977 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:43,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:43,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1822398145, now seen corresponding path program 1 times [2024-09-12 19:36:43,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:43,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266174523] [2024-09-12 19:36:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:43,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:43,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482628376] [2024-09-12 19:36:43,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:43,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:43,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:43,994 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 19:36:43,995 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 19:36:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:44,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:36:44,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:44,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:44,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:44,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:44,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266174523] [2024-09-12 19:36:44,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:44,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482628376] [2024-09-12 19:36:44,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482628376] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:44,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:36:44,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:36:44,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969572185] [2024-09-12 19:36:44,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:44,292 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:36:44,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:44,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:36:44,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:36:44,292 INFO L87 Difference]: Start difference. First operand 173 states and 188 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:44,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:44,730 INFO L93 Difference]: Finished difference Result 190 states and 207 transitions. [2024-09-12 19:36:44,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:36:44,730 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2024-09-12 19:36:44,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:44,732 INFO L225 Difference]: With dead ends: 190 [2024-09-12 19:36:44,732 INFO L226 Difference]: Without dead ends: 186 [2024-09-12 19:36:44,732 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:36:44,733 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 176 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:44,733 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 184 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:36:44,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-09-12 19:36:44,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 179. [2024-09-12 19:36:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 132 states have (on average 1.3636363636363635) internal successors, (180), 168 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 192 transitions. [2024-09-12 19:36:44,754 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 192 transitions. Word has length 47 [2024-09-12 19:36:44,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:44,755 INFO L474 AbstractCegarLoop]: Abstraction has 179 states and 192 transitions. [2024-09-12 19:36:44,755 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:44,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:44,756 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 192 transitions. [2024-09-12 19:36:44,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 19:36:44,758 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:44,758 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:44,778 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:36:44,960 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 19:36:44,961 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:44,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:44,961 INFO L85 PathProgramCache]: Analyzing trace with hash 116768929, now seen corresponding path program 1 times [2024-09-12 19:36:44,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:44,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316485995] [2024-09-12 19:36:44,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:44,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:44,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894576064] [2024-09-12 19:36:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:44,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:44,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:44,978 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 19:36:44,980 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 19:36:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:45,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:36:45,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:45,099 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:45,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:45,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:45,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316485995] [2024-09-12 19:36:45,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:45,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894576064] [2024-09-12 19:36:45,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894576064] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:45,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:45,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:36:45,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948850010] [2024-09-12 19:36:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:45,100 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:36:45,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:45,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:36:45,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:45,101 INFO L87 Difference]: Start difference. First operand 179 states and 192 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:45,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:45,313 INFO L93 Difference]: Finished difference Result 179 states and 192 transitions. [2024-09-12 19:36:45,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:45,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 54 [2024-09-12 19:36:45,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:45,315 INFO L225 Difference]: With dead ends: 179 [2024-09-12 19:36:45,315 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 19:36:45,315 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:45,316 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 57 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:45,316 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 59 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:45,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 19:36:45,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-09-12 19:36:45,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 132 states have (on average 1.25) internal successors, (165), 157 states have internal predecessors, (165), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:45,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 177 transitions. [2024-09-12 19:36:45,350 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 177 transitions. Word has length 54 [2024-09-12 19:36:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:45,350 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 177 transitions. [2024-09-12 19:36:45,350 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:36:45,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 177 transitions. [2024-09-12 19:36:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:36:45,351 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:45,351 INFO L216 NwaCegarLoop]: trace histogram [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 19:36:45,368 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:45,555 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:36:45,557 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:45,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:45,557 INFO L85 PathProgramCache]: Analyzing trace with hash -675130423, now seen corresponding path program 1 times [2024-09-12 19:36:45,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:45,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089862038] [2024-09-12 19:36:45,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:45,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:45,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [559396427] [2024-09-12 19:36:45,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:45,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:45,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:45,580 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 19:36:45,583 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 19:36:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:45,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:36:45,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:45,778 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:45,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:45,897 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:45,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:45,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089862038] [2024-09-12 19:36:45,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:45,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559396427] [2024-09-12 19:36:45,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559396427] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:45,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:36:45,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:36:45,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435578875] [2024-09-12 19:36:45,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:45,899 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:36:45,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:45,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:36:45,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:36:45,900 INFO L87 Difference]: Start difference. First operand 168 states and 177 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:46,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:46,339 INFO L93 Difference]: Finished difference Result 184 states and 198 transitions. [2024-09-12 19:36:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:36:46,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-09-12 19:36:46,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:46,341 INFO L225 Difference]: With dead ends: 184 [2024-09-12 19:36:46,341 INFO L226 Difference]: Without dead ends: 178 [2024-09-12 19:36:46,341 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:36:46,342 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 74 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:46,342 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 137 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:36:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-09-12 19:36:46,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 171. [2024-09-12 19:36:46,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 140 states have (on average 1.207142857142857) internal successors, (169), 160 states have internal predecessors, (169), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 181 transitions. [2024-09-12 19:36:46,365 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 181 transitions. Word has length 55 [2024-09-12 19:36:46,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:46,365 INFO L474 AbstractCegarLoop]: Abstraction has 171 states and 181 transitions. [2024-09-12 19:36:46,366 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:46,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:46,366 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 181 transitions. [2024-09-12 19:36:46,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 19:36:46,367 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:46,367 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:46,383 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 19:36:46,571 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:46,572 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:46,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:46,572 INFO L85 PathProgramCache]: Analyzing trace with hash -156087869, now seen corresponding path program 1 times [2024-09-12 19:36:46,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:46,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828888584] [2024-09-12 19:36:46,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:46,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:46,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [298725896] [2024-09-12 19:36:46,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:46,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:46,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:46,591 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 19:36:46,593 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 19:36:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:46,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:36:46,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:36:46,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-09-12 19:36:46,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:46,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828888584] [2024-09-12 19:36:46,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:46,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298725896] [2024-09-12 19:36:46,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298725896] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:46,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:36:46,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:36:46,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712934924] [2024-09-12 19:36:46,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:46,977 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:36:46,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:46,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:36:46,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:36:46,978 INFO L87 Difference]: Start difference. First operand 171 states and 181 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 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 19:36:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:47,301 INFO L93 Difference]: Finished difference Result 171 states and 181 transitions. [2024-09-12 19:36:47,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:36:47,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 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 67 [2024-09-12 19:36:47,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:47,304 INFO L225 Difference]: With dead ends: 171 [2024-09-12 19:36:47,304 INFO L226 Difference]: Without dead ends: 150 [2024-09-12 19:36:47,304 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:36:47,305 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 47 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:47,305 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 86 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:36:47,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-09-12 19:36:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-09-12 19:36:47,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 121 states have (on average 1.2148760330578512) internal successors, (147), 139 states have internal predecessors, (147), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:47,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 158 transitions. [2024-09-12 19:36:47,333 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 158 transitions. Word has length 67 [2024-09-12 19:36:47,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:47,333 INFO L474 AbstractCegarLoop]: Abstraction has 150 states and 158 transitions. [2024-09-12 19:36:47,333 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 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 19:36:47,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:47,333 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 158 transitions. [2024-09-12 19:36:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 19:36:47,334 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:47,334 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:47,350 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:47,534 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:47,535 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:47,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1440782285, now seen corresponding path program 1 times [2024-09-12 19:36:47,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:47,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54383093] [2024-09-12 19:36:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:47,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:47,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:47,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:47,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:47,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:47,627 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:47,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:47,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54383093] [2024-09-12 19:36:47,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54383093] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:47,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069188704] [2024-09-12 19:36:47,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:47,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:47,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:47,634 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 19:36:47,636 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 19:36:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:47,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:36:47,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:47,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:47,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069188704] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:47,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:36:47,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:36:47,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178514460] [2024-09-12 19:36:47,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:47,762 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:47,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:47,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:47,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:47,763 INFO L87 Difference]: Start difference. First operand 150 states and 158 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:47,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:47,823 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2024-09-12 19:36:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:36:47,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 70 [2024-09-12 19:36:47,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:47,825 INFO L225 Difference]: With dead ends: 150 [2024-09-12 19:36:47,825 INFO L226 Difference]: Without dead ends: 149 [2024-09-12 19:36:47,825 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 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 19:36:47,826 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 13 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:47,826 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 172 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:36:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-09-12 19:36:47,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-09-12 19:36:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 121 states have (on average 1.1983471074380165) internal successors, (145), 138 states have internal predecessors, (145), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:36:47,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 156 transitions. [2024-09-12 19:36:47,856 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 156 transitions. Word has length 70 [2024-09-12 19:36:47,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:47,856 INFO L474 AbstractCegarLoop]: Abstraction has 149 states and 156 transitions. [2024-09-12 19:36:47,857 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:47,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:47,857 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 156 transitions. [2024-09-12 19:36:47,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 19:36:47,857 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:47,858 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:47,874 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 19:36:48,058 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:36:48,058 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:48,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:48,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1714577975, now seen corresponding path program 1 times [2024-09-12 19:36:48,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:48,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662028918] [2024-09-12 19:36:48,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:48,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,151 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:48,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:48,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662028918] [2024-09-12 19:36:48,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662028918] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:48,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029811174] [2024-09-12 19:36:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:48,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:48,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:48,154 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:48,156 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:36:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:36:48,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:48,259 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:48,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:48,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029811174] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:48,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:36:48,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:36:48,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935768414] [2024-09-12 19:36:48,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:48,339 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:36:48,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:36:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:36:48,340 INFO L87 Difference]: Start difference. First operand 149 states and 156 transitions. Second operand has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-12 19:36:48,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:48,412 INFO L93 Difference]: Finished difference Result 210 states and 217 transitions. [2024-09-12 19:36:48,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:36:48,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 71 [2024-09-12 19:36:48,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:48,415 INFO L225 Difference]: With dead ends: 210 [2024-09-12 19:36:48,415 INFO L226 Difference]: Without dead ends: 209 [2024-09-12 19:36:48,415 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 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 19:36:48,416 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 25 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:48,416 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 263 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:36:48,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-09-12 19:36:48,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 190. [2024-09-12 19:36:48,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 160 states have (on average 1.24375) internal successors, (199), 177 states have internal predecessors, (199), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 214 transitions. [2024-09-12 19:36:48,465 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 214 transitions. Word has length 71 [2024-09-12 19:36:48,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:48,465 INFO L474 AbstractCegarLoop]: Abstraction has 190 states and 214 transitions. [2024-09-12 19:36:48,465 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-12 19:36:48,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:48,466 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 214 transitions. [2024-09-12 19:36:48,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:36:48,466 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:48,466 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:48,483 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 19:36:48,670 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:36:48,671 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:48,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:48,671 INFO L85 PathProgramCache]: Analyzing trace with hash 11061825, now seen corresponding path program 1 times [2024-09-12 19:36:48,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:48,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293154602] [2024-09-12 19:36:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:48,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:36:48,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:48,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293154602] [2024-09-12 19:36:48,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293154602] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:48,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:48,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:36:48,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223237019] [2024-09-12 19:36:48,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:48,734 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:48,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:48,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:48,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:48,735 INFO L87 Difference]: Start difference. First operand 190 states and 214 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 19:36:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:48,846 INFO L93 Difference]: Finished difference Result 190 states and 214 transitions. [2024-09-12 19:36:48,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:36:48,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 81 [2024-09-12 19:36:48,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:48,848 INFO L225 Difference]: With dead ends: 190 [2024-09-12 19:36:48,848 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 19:36:48,848 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 19:36:48,849 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 60 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:48,849 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 38 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 19:36:48,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-09-12 19:36:48,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 160 states have (on average 1.18125) internal successors, (189), 172 states have internal predecessors, (189), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 204 transitions. [2024-09-12 19:36:48,889 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 204 transitions. Word has length 81 [2024-09-12 19:36:48,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:48,889 INFO L474 AbstractCegarLoop]: Abstraction has 185 states and 204 transitions. [2024-09-12 19:36:48,889 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 19:36:48,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:48,890 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 204 transitions. [2024-09-12 19:36:48,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-09-12 19:36:48,891 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:48,891 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:48,891 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 19:36:48,891 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:48,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash 342916637, now seen corresponding path program 1 times [2024-09-12 19:36:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:48,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60634840] [2024-09-12 19:36:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:48,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-12 19:36:48,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:48,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60634840] [2024-09-12 19:36:48,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60634840] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:48,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:48,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:36:48,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836410997] [2024-09-12 19:36:48,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:48,952 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:36:48,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:48,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:36:48,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:36:48,953 INFO L87 Difference]: Start difference. First operand 185 states and 204 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 19:36:49,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:49,064 INFO L93 Difference]: Finished difference Result 185 states and 204 transitions. [2024-09-12 19:36:49,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:36:49,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 82 [2024-09-12 19:36:49,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:49,066 INFO L225 Difference]: With dead ends: 185 [2024-09-12 19:36:49,066 INFO L226 Difference]: Without dead ends: 184 [2024-09-12 19:36:49,067 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 19:36:49,067 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 30 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:49,067 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 50 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:49,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-09-12 19:36:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-09-12 19:36:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 160 states have (on average 1.1625) internal successors, (186), 171 states have internal predecessors, (186), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 201 transitions. [2024-09-12 19:36:49,108 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 201 transitions. Word has length 82 [2024-09-12 19:36:49,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:49,108 INFO L474 AbstractCegarLoop]: Abstraction has 184 states and 201 transitions. [2024-09-12 19:36:49,108 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 19:36:49,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:49,108 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 201 transitions. [2024-09-12 19:36:49,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 19:36:49,109 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:49,109 INFO L216 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:49,109 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 19:36:49,110 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:49,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:49,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1169591585, now seen corresponding path program 1 times [2024-09-12 19:36:49,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:49,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662862164] [2024-09-12 19:36:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:49,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:49,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:49,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:49,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:49,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:36:49,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:49,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662862164] [2024-09-12 19:36:49,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662862164] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:49,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439547757] [2024-09-12 19:36:49,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:49,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:49,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:49,180 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:49,182 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:36:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:49,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:36:49,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:49,284 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:36:49,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:49,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439547757] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:49,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:36:49,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2024-09-12 19:36:49,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666627408] [2024-09-12 19:36:49,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:49,388 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:36:49,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:49,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:36:49,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:36:49,389 INFO L87 Difference]: Start difference. First operand 184 states and 201 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 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 19:36:49,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:49,527 INFO L93 Difference]: Finished difference Result 184 states and 201 transitions. [2024-09-12 19:36:49,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:49,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 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 84 [2024-09-12 19:36:49,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:49,528 INFO L225 Difference]: With dead ends: 184 [2024-09-12 19:36:49,529 INFO L226 Difference]: Without dead ends: 173 [2024-09-12 19:36:49,529 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:36:49,530 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 90 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:49,530 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 49 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:49,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-09-12 19:36:49,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-09-12 19:36:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.1176470588235294) internal successors, (171), 160 states have internal predecessors, (171), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:49,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 186 transitions. [2024-09-12 19:36:49,603 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 186 transitions. Word has length 84 [2024-09-12 19:36:49,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:49,603 INFO L474 AbstractCegarLoop]: Abstraction has 173 states and 186 transitions. [2024-09-12 19:36:49,603 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 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 19:36:49,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:49,604 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 186 transitions. [2024-09-12 19:36:49,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 19:36:49,604 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:49,604 INFO L216 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:49,623 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 19:36:49,805 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:49,805 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:49,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:49,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1897600699, now seen corresponding path program 1 times [2024-09-12 19:36:49,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:49,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369843590] [2024-09-12 19:36:49,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:49,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:49,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1411144600] [2024-09-12 19:36:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:49,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:49,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:49,830 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:49,831 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:36:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:49,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:36:49,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:49,960 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:49,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:36:49,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:49,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369843590] [2024-09-12 19:36:49,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:49,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411144600] [2024-09-12 19:36:49,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411144600] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:36:49,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:36:49,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:36:49,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241857006] [2024-09-12 19:36:49,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:36:49,962 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:36:49,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:49,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:36:49,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:49,963 INFO L87 Difference]: Start difference. First operand 173 states and 186 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:50,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:50,110 INFO L93 Difference]: Finished difference Result 173 states and 186 transitions. [2024-09-12 19:36:50,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:50,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 85 [2024-09-12 19:36:50,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:50,112 INFO L225 Difference]: With dead ends: 173 [2024-09-12 19:36:50,112 INFO L226 Difference]: Without dead ends: 164 [2024-09-12 19:36:50,114 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:36:50,114 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 34 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:50,115 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 82 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:50,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-09-12 19:36:50,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-09-12 19:36:50,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 146 states have (on average 1.082191780821918) internal successors, (158), 151 states have internal predecessors, (158), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:50,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2024-09-12 19:36:50,153 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 85 [2024-09-12 19:36:50,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:50,154 INFO L474 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2024-09-12 19:36:50,154 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:50,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:50,154 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2024-09-12 19:36:50,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 19:36:50,155 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:50,155 INFO L216 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:50,171 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:36:50,355 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-09-12 19:36:50,356 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:50,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:50,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1303920545, now seen corresponding path program 1 times [2024-09-12 19:36:50,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:50,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533205469] [2024-09-12 19:36:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:50,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:50,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914735210] [2024-09-12 19:36:50,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:50,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:50,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:50,371 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:50,373 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:36:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:50,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:36:50,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:36:50,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:50,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:50,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533205469] [2024-09-12 19:36:50,598 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:50,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914735210] [2024-09-12 19:36:50,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914735210] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:50,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:36:50,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:36:50,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664402526] [2024-09-12 19:36:50,598 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:50,599 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:36:50,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:50,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:36:50,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:36:50,600 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:50,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:50,755 INFO L93 Difference]: Finished difference Result 165 states and 173 transitions. [2024-09-12 19:36:50,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:50,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 86 [2024-09-12 19:36:50,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:50,757 INFO L225 Difference]: With dead ends: 165 [2024-09-12 19:36:50,757 INFO L226 Difference]: Without dead ends: 164 [2024-09-12 19:36:50,757 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:36:50,758 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 15 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:50,759 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 74 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-09-12 19:36:50,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-09-12 19:36:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 146 states have (on average 1.0753424657534247) internal successors, (157), 151 states have internal predecessors, (157), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:50,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 172 transitions. [2024-09-12 19:36:50,791 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 172 transitions. Word has length 86 [2024-09-12 19:36:50,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:50,792 INFO L474 AbstractCegarLoop]: Abstraction has 164 states and 172 transitions. [2024-09-12 19:36:50,792 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:36:50,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:50,792 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 172 transitions. [2024-09-12 19:36:50,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 19:36:50,793 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:50,793 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:50,809 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 19:36:50,993 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:50,994 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:50,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:50,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1838637099, now seen corresponding path program 1 times [2024-09-12 19:36:50,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:50,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454153755] [2024-09-12 19:36:50,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:50,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:51,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1177094807] [2024-09-12 19:36:51,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:51,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:51,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:51,012 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:51,013 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:36:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:51,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:36:51,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:51,163 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:36:51,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:51,346 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:36:51,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:51,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454153755] [2024-09-12 19:36:51,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:51,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177094807] [2024-09-12 19:36:51,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177094807] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:51,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:36:51,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 19:36:51,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161534800] [2024-09-12 19:36:51,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:51,347 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:36:51,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:51,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:36:51,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:36:51,348 INFO L87 Difference]: Start difference. First operand 164 states and 172 transitions. Second operand has 10 states, 9 states have (on average 19.333333333333332) internal successors, (174), 10 states have internal predecessors, (174), 7 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:36:51,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:51,624 INFO L93 Difference]: Finished difference Result 180 states and 188 transitions. [2024-09-12 19:36:51,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:36:51,624 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 19.333333333333332) internal successors, (174), 10 states have internal predecessors, (174), 7 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 108 [2024-09-12 19:36:51,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:51,628 INFO L225 Difference]: With dead ends: 180 [2024-09-12 19:36:51,628 INFO L226 Difference]: Without dead ends: 178 [2024-09-12 19:36:51,629 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:36:51,629 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 79 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:51,629 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 236 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:51,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-09-12 19:36:51,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 163. [2024-09-12 19:36:51,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 146 states have (on average 1.0547945205479452) internal successors, (154), 150 states have internal predecessors, (154), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:36:51,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 169 transitions. [2024-09-12 19:36:51,693 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 169 transitions. Word has length 108 [2024-09-12 19:36:51,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:51,694 INFO L474 AbstractCegarLoop]: Abstraction has 163 states and 169 transitions. [2024-09-12 19:36:51,694 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 19.333333333333332) internal successors, (174), 10 states have internal predecessors, (174), 7 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:36:51,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:51,694 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 169 transitions. [2024-09-12 19:36:51,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 19:36:51,695 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:51,695 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:51,712 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 19:36:51,895 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:36:51,896 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:51,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:51,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1698689961, now seen corresponding path program 1 times [2024-09-12 19:36:51,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:51,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131770961] [2024-09-12 19:36:51,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:51,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:51,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345075605] [2024-09-12 19:36:51,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:51,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:51,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:51,915 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:51,918 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:36:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:51,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:36:51,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:52,243 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:36:52,243 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:52,478 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:36:52,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:52,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131770961] [2024-09-12 19:36:52,479 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:52,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345075605] [2024-09-12 19:36:52,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345075605] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:52,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:36:52,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-09-12 19:36:52,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433210218] [2024-09-12 19:36:52,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:52,480 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:36:52,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:52,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:36:52,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:36:52,481 INFO L87 Difference]: Start difference. First operand 163 states and 169 transitions. Second operand has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 7 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:36:52,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:52,916 INFO L93 Difference]: Finished difference Result 230 states and 246 transitions. [2024-09-12 19:36:52,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:36:52,917 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 7 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 110 [2024-09-12 19:36:52,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:52,919 INFO L225 Difference]: With dead ends: 230 [2024-09-12 19:36:52,919 INFO L226 Difference]: Without dead ends: 229 [2024-09-12 19:36:52,919 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=177, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:36:52,920 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 81 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:52,920 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 170 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:36:52,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-09-12 19:36:52,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2024-09-12 19:36:52,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 208 states have (on average 1.0721153846153846) internal successors, (223), 212 states have internal predecessors, (223), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:36:52,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 242 transitions. [2024-09-12 19:36:52,990 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 242 transitions. Word has length 110 [2024-09-12 19:36:52,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:52,990 INFO L474 AbstractCegarLoop]: Abstraction has 227 states and 242 transitions. [2024-09-12 19:36:52,990 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 7 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:36:52,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 242 transitions. [2024-09-12 19:36:52,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-09-12 19:36:52,991 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:52,991 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:53,007 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:53,192 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:36:53,192 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:53,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:53,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1927074305, now seen corresponding path program 2 times [2024-09-12 19:36:53,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:53,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124991643] [2024-09-12 19:36:53,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:53,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:53,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399462732] [2024-09-12 19:36:53,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:36:53,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:53,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:53,225 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:53,226 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:36:53,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:36:53,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:36:53,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:36:53,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 96 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:36:53,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 96 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:36:54,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:54,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124991643] [2024-09-12 19:36:54,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:54,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399462732] [2024-09-12 19:36:54,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399462732] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:54,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:36:54,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2024-09-12 19:36:54,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106010566] [2024-09-12 19:36:54,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:54,426 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 19:36:54,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:54,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 19:36:54,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:36:54,428 INFO L87 Difference]: Start difference. First operand 227 states and 242 transitions. Second operand has 20 states, 19 states have (on average 9.947368421052632) internal successors, (189), 20 states have internal predecessors, (189), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:36:56,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:56,884 INFO L93 Difference]: Finished difference Result 266 states and 283 transitions. [2024-09-12 19:36:56,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 19:36:56,885 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.947368421052632) internal successors, (189), 20 states have internal predecessors, (189), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 113 [2024-09-12 19:36:56,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:56,886 INFO L225 Difference]: With dead ends: 266 [2024-09-12 19:36:56,887 INFO L226 Difference]: Without dead ends: 264 [2024-09-12 19:36:56,887 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2024-09-12 19:36:56,888 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 295 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:56,888 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 279 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-09-12 19:36:56,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-09-12 19:36:57,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 259. [2024-09-12 19:36:57,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 239 states have (on average 1.0627615062761506) internal successors, (254), 243 states have internal predecessors, (254), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:36:57,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 275 transitions. [2024-09-12 19:36:57,004 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 275 transitions. Word has length 113 [2024-09-12 19:36:57,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:57,005 INFO L474 AbstractCegarLoop]: Abstraction has 259 states and 275 transitions. [2024-09-12 19:36:57,005 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.947368421052632) internal successors, (189), 20 states have internal predecessors, (189), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:36:57,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:57,005 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 275 transitions. [2024-09-12 19:36:57,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-09-12 19:36:57,006 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:57,006 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:57,024 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 19:36:57,206 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:57,207 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:57,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:57,207 INFO L85 PathProgramCache]: Analyzing trace with hash 665865993, now seen corresponding path program 2 times [2024-09-12 19:36:57,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:57,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450404323] [2024-09-12 19:36:57,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:57,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:57,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334681219] [2024-09-12 19:36:57,243 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:36:57,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:57,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:57,247 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:57,249 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:36:57,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:36:57,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:36:57,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:36:57,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:36:57,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:57,609 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 96 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:36:57,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:57,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450404323] [2024-09-12 19:36:57,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:57,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334681219] [2024-09-12 19:36:57,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334681219] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:57,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:36:57,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-12 19:36:57,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268473233] [2024-09-12 19:36:57,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:57,611 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:36:57,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:57,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:36:57,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:36:57,612 INFO L87 Difference]: Start difference. First operand 259 states and 275 transitions. Second operand has 12 states, 11 states have (on average 18.181818181818183) internal successors, (200), 12 states have internal predecessors, (200), 7 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:36:57,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:57,931 INFO L93 Difference]: Finished difference Result 259 states and 275 transitions. [2024-09-12 19:36:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:36:57,935 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 18.181818181818183) internal successors, (200), 12 states have internal predecessors, (200), 7 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 121 [2024-09-12 19:36:57,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:57,937 INFO L225 Difference]: With dead ends: 259 [2024-09-12 19:36:57,937 INFO L226 Difference]: Without dead ends: 258 [2024-09-12 19:36:57,937 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:36:57,938 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 144 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:57,940 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 152 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:36:57,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-09-12 19:36:58,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2024-09-12 19:36:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 239 states have (on average 1.0418410041841004) internal successors, (249), 242 states have internal predecessors, (249), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:36:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 270 transitions. [2024-09-12 19:36:58,064 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 270 transitions. Word has length 121 [2024-09-12 19:36:58,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:58,064 INFO L474 AbstractCegarLoop]: Abstraction has 258 states and 270 transitions. [2024-09-12 19:36:58,065 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 18.181818181818183) internal successors, (200), 12 states have internal predecessors, (200), 7 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:36:58,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:58,065 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 270 transitions. [2024-09-12 19:36:58,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-09-12 19:36:58,066 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:58,066 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:58,082 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 19:36:58,266 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:58,266 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:58,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:58,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1696932767, now seen corresponding path program 2 times [2024-09-12 19:36:58,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:58,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478390343] [2024-09-12 19:36:58,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:58,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:58,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1079192024] [2024-09-12 19:36:58,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:36:58,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:58,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:58,307 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:58,309 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:36:58,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:36:58,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:36:58,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:36:58,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:58,502 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:36:58,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:58,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:58,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478390343] [2024-09-12 19:36:58,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:36:58,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079192024] [2024-09-12 19:36:58,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079192024] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:58,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:36:58,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:36:58,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648552262] [2024-09-12 19:36:58,563 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:58,563 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:36:58,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:58,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:36:58,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:36:58,564 INFO L87 Difference]: Start difference. First operand 258 states and 270 transitions. Second operand has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 7 states have internal predecessors, (130), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:36:58,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:58,765 INFO L93 Difference]: Finished difference Result 260 states and 270 transitions. [2024-09-12 19:36:58,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:36:58,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 7 states have internal predecessors, (130), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 152 [2024-09-12 19:36:58,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:58,767 INFO L225 Difference]: With dead ends: 260 [2024-09-12 19:36:58,767 INFO L226 Difference]: Without dead ends: 259 [2024-09-12 19:36:58,767 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:36:58,768 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:58,768 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 98 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:36:58,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-09-12 19:36:58,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 258. [2024-09-12 19:36:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 239 states have (on average 1.0376569037656904) internal successors, (248), 242 states have internal predecessors, (248), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:36:58,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 269 transitions. [2024-09-12 19:36:58,868 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 269 transitions. Word has length 152 [2024-09-12 19:36:58,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:58,869 INFO L474 AbstractCegarLoop]: Abstraction has 258 states and 269 transitions. [2024-09-12 19:36:58,869 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 7 states have internal predecessors, (130), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:36:58,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:58,869 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 269 transitions. [2024-09-12 19:36:58,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-09-12 19:36:58,870 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:58,870 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:58,887 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 19:36:59,070 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 19:36:59,071 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:59,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:59,071 INFO L85 PathProgramCache]: Analyzing trace with hash 908290961, now seen corresponding path program 2 times [2024-09-12 19:36:59,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:59,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779693797] [2024-09-12 19:36:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:59,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:59,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:36:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:59,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:36:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:59,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:36:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:59,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:36:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:59,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 19:36:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:59,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 19:36:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:59,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 19:36:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:36:59,186 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-09-12 19:36:59,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:36:59,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779693797] [2024-09-12 19:36:59,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779693797] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:36:59,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368710224] [2024-09-12 19:36:59,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:36:59,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:59,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:59,189 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:59,190 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:36:59,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 19:36:59,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:36:59,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:36:59,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:59,381 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-09-12 19:36:59,381 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:36:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-09-12 19:36:59,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368710224] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:36:59,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:36:59,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-12 19:36:59,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107606638] [2024-09-12 19:36:59,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:36:59,552 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:36:59,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:36:59,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:36:59,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:36:59,553 INFO L87 Difference]: Start difference. First operand 258 states and 269 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:36:59,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:36:59,666 INFO L93 Difference]: Finished difference Result 258 states and 269 transitions. [2024-09-12 19:36:59,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:36:59,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 170 [2024-09-12 19:36:59,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:36:59,669 INFO L225 Difference]: With dead ends: 258 [2024-09-12 19:36:59,669 INFO L226 Difference]: Without dead ends: 257 [2024-09-12 19:36:59,669 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:36:59,669 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 53 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:36:59,670 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 106 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:36:59,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-09-12 19:36:59,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2024-09-12 19:36:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 239 states have (on average 1.0209205020920502) internal successors, (244), 241 states have internal predecessors, (244), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:36:59,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 265 transitions. [2024-09-12 19:36:59,759 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 265 transitions. Word has length 170 [2024-09-12 19:36:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:36:59,759 INFO L474 AbstractCegarLoop]: Abstraction has 257 states and 265 transitions. [2024-09-12 19:36:59,759 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:36:59,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 265 transitions. [2024-09-12 19:36:59,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-09-12 19:36:59,760 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:36:59,761 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:36:59,776 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 19:36:59,961 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:36:59,961 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:36:59,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:36:59,962 INFO L85 PathProgramCache]: Analyzing trace with hash -339994873, now seen corresponding path program 3 times [2024-09-12 19:36:59,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:36:59,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542019634] [2024-09-12 19:36:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:36:59,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:36:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:36:59,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908487624] [2024-09-12 19:36:59,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:36:59,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:36:59,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:36:59,989 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:36:59,991 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:37:00,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:37:00,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:37:00,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:37:00,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:08,118 WARN L876 $PredicateComparison]: unable to prove that (and (<= 0 (+ (div (+ (* (- 1) c_main_~y~0) (* (- 2) c_main_~y~0 c_main_~y~0 c_main_~y~0) (* (- 3) c_main_~y~0 c_main_~y~0)) 6) 1537228672809129301)) (= (mod (+ (* 3 c_main_~y~0 c_main_~y~0) (* 5 c_main_~y~0) (* 4 c_main_~y~0 c_main_~y~0 c_main_~y~0)) 6) 0)) is different from true [2024-09-12 19:37:23,010 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2024-09-12 19:37:23,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:37:23,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:23,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542019634] [2024-09-12 19:37:23,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:23,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908487624] [2024-09-12 19:37:23,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908487624] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:23,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:23,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 19:37:23,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746529474] [2024-09-12 19:37:23,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:23,012 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:37:23,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:23,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:37:23,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=32, Unknown=1, NotChecked=10, Total=56 [2024-09-12 19:37:23,013 INFO L87 Difference]: Start difference. First operand 257 states and 265 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:37:23,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:23,399 INFO L93 Difference]: Finished difference Result 257 states and 265 transitions. [2024-09-12 19:37:23,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:37:23,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 185 [2024-09-12 19:37:23,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:23,401 INFO L225 Difference]: With dead ends: 257 [2024-09-12 19:37:23,401 INFO L226 Difference]: Without dead ends: 256 [2024-09-12 19:37:23,402 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=32, Invalid=81, Unknown=1, NotChecked=18, Total=132 [2024-09-12 19:37:23,402 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 105 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:23,402 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 80 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 137 Invalid, 0 Unknown, 70 Unchecked, 0.1s Time] [2024-09-12 19:37:23,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-09-12 19:37:23,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2024-09-12 19:37:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 239 states have (on average 1.00836820083682) internal successors, (241), 240 states have internal predecessors, (241), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:37:23,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 262 transitions. [2024-09-12 19:37:23,562 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 262 transitions. Word has length 185 [2024-09-12 19:37:23,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:23,563 INFO L474 AbstractCegarLoop]: Abstraction has 256 states and 262 transitions. [2024-09-12 19:37:23,563 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:37:23,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:23,563 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 262 transitions. [2024-09-12 19:37:23,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-09-12 19:37:23,566 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:23,566 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:23,579 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 19:37:23,769 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:37:23,769 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:37:23,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:23,770 INFO L85 PathProgramCache]: Analyzing trace with hash 454556925, now seen corresponding path program 2 times [2024-09-12 19:37:23,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:23,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429797060] [2024-09-12 19:37:23,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:23,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:37:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:37:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:37:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:37:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 19:37:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 19:37:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 19:37:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 19:37:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 19:37:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 19:37:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 653 proven. 159 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:37:24,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:24,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429797060] [2024-09-12 19:37:24,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429797060] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:37:24,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895024680] [2024-09-12 19:37:24,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:37:24,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:24,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:24,436 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:37:24,437 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:37:24,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 19:37:24,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:37:24,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:37:24,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2024-09-12 19:37:24,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:37:24,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895024680] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:24,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:37:24,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2024-09-12 19:37:24,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645744522] [2024-09-12 19:37:24,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:24,822 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:37:24,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:24,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:37:24,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:37:24,824 INFO L87 Difference]: Start difference. First operand 256 states and 262 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 10 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:37:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:25,129 INFO L93 Difference]: Finished difference Result 256 states and 262 transitions. [2024-09-12 19:37:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:37:25,129 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 10 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 275 [2024-09-12 19:37:25,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:25,131 INFO L225 Difference]: With dead ends: 256 [2024-09-12 19:37:25,132 INFO L226 Difference]: Without dead ends: 255 [2024-09-12 19:37:25,132 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:37:25,132 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 44 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:25,133 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 92 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:37:25,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-09-12 19:37:25,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2024-09-12 19:37:25,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 239 states have (on average 1.00418410041841) internal successors, (240), 239 states have internal predecessors, (240), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:37:25,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 261 transitions. [2024-09-12 19:37:25,278 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 261 transitions. Word has length 275 [2024-09-12 19:37:25,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:25,278 INFO L474 AbstractCegarLoop]: Abstraction has 255 states and 261 transitions. [2024-09-12 19:37:25,279 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 10 states have internal predecessors, (67), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:37:25,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:25,279 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 261 transitions. [2024-09-12 19:37:25,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-09-12 19:37:25,280 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:25,281 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:25,297 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 19:37:25,484 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:37:25,484 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 19:37:25,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:25,485 INFO L85 PathProgramCache]: Analyzing trace with hash -326477925, now seen corresponding path program 3 times [2024-09-12 19:37:25,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:25,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713124205] [2024-09-12 19:37:25,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:25,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:25,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:37:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:25,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:37:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:26,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 19:37:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:26,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:37:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:26,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 19:37:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:26,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 19:37:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:26,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 19:37:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:26,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 19:37:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:26,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 19:37:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:26,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 19:37:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:26,032 INFO L134 CoverageAnalysis]: Checked inductivity of 948 backedges. 677 proven. 159 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:37:26,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:26,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713124205] [2024-09-12 19:37:26,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713124205] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:37:26,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485108395] [2024-09-12 19:37:26,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:37:26,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:26,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:26,035 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:37:26,036 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:37:26,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-09-12 19:37:26,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:37:26,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:37:26,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 948 backedges. 836 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:37:27,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:37:27,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485108395] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:27,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:37:27,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 21 [2024-09-12 19:37:27,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906496816] [2024-09-12 19:37:27,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:27,281 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 19:37:27,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:27,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 19:37:27,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:37:27,283 INFO L87 Difference]: Start difference. First operand 255 states and 261 transitions. Second operand has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 12 states have internal predecessors, (236), 9 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-09-12 19:37:27,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:27,497 INFO L93 Difference]: Finished difference Result 259 states and 264 transitions. [2024-09-12 19:37:27,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:37:27,498 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 12 states have internal predecessors, (236), 9 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) Word has length 278 [2024-09-12 19:37:27,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:27,499 INFO L225 Difference]: With dead ends: 259 [2024-09-12 19:37:27,499 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:37:27,500 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:37:27,500 INFO L434 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:27,500 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 869 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:37:27,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:37:27,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:37:27,501 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 19:37:27,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:37:27,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 278 [2024-09-12 19:37:27,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:27,502 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:37:27,502 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 12 states have internal predecessors, (236), 9 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-09-12 19:37:27,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:37:27,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:37:27,505 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 45 remaining) [2024-09-12 19:37:27,506 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 45 remaining) [2024-09-12 19:37:27,506 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 45 remaining) [2024-09-12 19:37:27,506 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 45 remaining) [2024-09-12 19:37:27,506 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 45 remaining) [2024-09-12 19:37:27,506 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 45 remaining) [2024-09-12 19:37:27,507 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 45 remaining) [2024-09-12 19:37:27,507 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 45 remaining) [2024-09-12 19:37:27,507 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 45 remaining) [2024-09-12 19:37:27,507 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 45 remaining) [2024-09-12 19:37:27,507 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 45 remaining) [2024-09-12 19:37:27,507 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 45 remaining) [2024-09-12 19:37:27,507 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 45 remaining) [2024-09-12 19:37:27,507 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 45 remaining) [2024-09-12 19:37:27,508 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 45 remaining) [2024-09-12 19:37:27,508 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 45 remaining) [2024-09-12 19:37:27,508 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 45 remaining) [2024-09-12 19:37:27,508 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 45 remaining) [2024-09-12 19:37:27,508 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 45 remaining) [2024-09-12 19:37:27,508 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 45 remaining) [2024-09-12 19:37:27,508 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 45 remaining) [2024-09-12 19:37:27,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 45 remaining) [2024-09-12 19:37:27,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 45 remaining) [2024-09-12 19:37:27,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 45 remaining) [2024-09-12 19:37:27,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 45 remaining) [2024-09-12 19:37:27,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 45 remaining) [2024-09-12 19:37:27,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 45 remaining) [2024-09-12 19:37:27,509 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 45 remaining) [2024-09-12 19:37:27,510 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 45 remaining) [2024-09-12 19:37:27,510 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 45 remaining) [2024-09-12 19:37:27,510 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 45 remaining) [2024-09-12 19:37:27,510 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 45 remaining) [2024-09-12 19:37:27,510 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 45 remaining) [2024-09-12 19:37:27,510 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 45 remaining) [2024-09-12 19:37:27,510 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 45 remaining) [2024-09-12 19:37:27,510 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 45 remaining) [2024-09-12 19:37:27,511 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 45 remaining) [2024-09-12 19:37:27,511 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 45 remaining) [2024-09-12 19:37:27,511 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 45 remaining) [2024-09-12 19:37:27,511 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 45 remaining) [2024-09-12 19:37:27,511 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 45 remaining) [2024-09-12 19:37:27,511 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 45 remaining) [2024-09-12 19:37:27,511 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 45 remaining) [2024-09-12 19:37:27,512 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 45 remaining) [2024-09-12 19:37:27,512 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 45 remaining) [2024-09-12 19:37:27,519 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 19:37:27,712 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:27,715 INFO L408 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:27,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:37:33,880 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:37:33,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:37:33 BoogieIcfgContainer [2024-09-12 19:37:33,899 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:37:33,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:37:33,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:37:33,900 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:37:33,900 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:36:39" (3/4) ... [2024-09-12 19:37:33,902 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:37:33,905 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:37:33,905 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-09-12 19:37:33,905 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:37:33,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:37:33,909 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-09-12 19:37:33,910 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 19:37:33,910 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:37:33,910 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:37:34,009 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:37:34,010 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:37:34,010 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:37:34,010 INFO L158 Benchmark]: Toolchain (without parser) took 54998.37ms. Allocated memory was 75.5MB in the beginning and 234.9MB in the end (delta: 159.4MB). Free memory was 47.3MB in the beginning and 178.0MB in the end (delta: -130.7MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2024-09-12 19:37:34,010 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 58.7MB. Free memory was 30.6MB in the beginning and 30.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:37:34,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.13ms. Allocated memory is still 75.5MB. Free memory was 46.8MB in the beginning and 55.0MB in the end (delta: -8.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-09-12 19:37:34,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.29ms. Allocated memory is still 75.5MB. Free memory was 55.0MB in the beginning and 54.1MB in the end (delta: 811.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:37:34,011 INFO L158 Benchmark]: Boogie Preprocessor took 44.67ms. Allocated memory is still 75.5MB. Free memory was 54.1MB in the beginning and 52.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:37:34,011 INFO L158 Benchmark]: RCFGBuilder took 516.79ms. Allocated memory is still 75.5MB. Free memory was 52.3MB in the beginning and 32.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-09-12 19:37:34,011 INFO L158 Benchmark]: TraceAbstraction took 54001.28ms. Allocated memory was 75.5MB in the beginning and 234.9MB in the end (delta: 159.4MB). Free memory was 55.0MB in the beginning and 184.3MB in the end (delta: -129.3MB). Peak memory consumption was 141.3MB. Max. memory is 16.1GB. [2024-09-12 19:37:34,011 INFO L158 Benchmark]: Witness Printer took 110.31ms. Allocated memory is still 234.9MB. Free memory was 184.3MB in the beginning and 178.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 19:37:34,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 58.7MB. Free memory was 30.6MB in the beginning and 30.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.13ms. Allocated memory is still 75.5MB. Free memory was 46.8MB in the beginning and 55.0MB in the end (delta: -8.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.29ms. Allocated memory is still 75.5MB. Free memory was 55.0MB in the beginning and 54.1MB in the end (delta: 811.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.67ms. Allocated memory is still 75.5MB. Free memory was 54.1MB in the beginning and 52.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 516.79ms. Allocated memory is still 75.5MB. Free memory was 52.3MB in the beginning and 32.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 54001.28ms. Allocated memory was 75.5MB in the beginning and 234.9MB in the end (delta: 159.4MB). Free memory was 55.0MB in the beginning and 184.3MB in the end (delta: -129.3MB). Peak memory consumption was 141.3MB. Max. memory is 16.1GB. * Witness Printer took 110.31ms. Allocated memory is still 234.9MB. Free memory was 184.3MB in the beginning and 178.0MB in the end (delta: 6.3MB). 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: 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: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: 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, 113 locations, 45 error locations. Started 1 CEGAR loops. OverallTime: 47.8s, OverallIterations: 30, TraceHistogramMax: 9, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1823 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1805 mSDsluCounter, 4605 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 70 IncrementalHoareTripleChecker+Unchecked, 3005 mSDsCounter, 184 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5922 IncrementalHoareTripleChecker+Invalid, 6176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 184 mSolverCounterUnsat, 1600 mSDtfsCounter, 5922 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3391 GetRequests, 3183 SyntacticMatches, 6 SemanticMatches, 202 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=259occurred in iteration=24, InterpolantAutomatonStates: 197, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 30 MinimizatonAttempts, 124 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 31.1s InterpolantComputationTime, 4856 NumberOfCodeBlocks, 4361 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 4346 ConstructedInterpolants, 0 QuantifiedInterpolants, 23886 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2942 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 45 InterpolantComputations, 19 PerfectInterpolantSequences, 5212/6634 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 45 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((k <= 5) && (0 <= k)) && (2 <= y)) && ((((3 * ((__int128) y * y)) + y) + ((((__int128) y * y) * y) * 2)) == ((__int128) x * 6))) && (c <= 9223372036854775806)) && ((((2 * ((__int128) y * y)) + x) + ((__int128) y * 6)) <= 1537228672809129296)) && (5 <= c)) || (((((((k <= 5) && (0 <= k)) && (2 <= y)) && ((((3 * ((__int128) y * y)) + y) + ((((__int128) y * y) * y) * 2)) == ((__int128) x * 6))) && (y <= 4)) && (c <= 9223372036854775806)) && (4 <= c))) || (((((x == 0) && (k <= 5)) && (0 <= k)) && (c == 0)) && (y == 0))) || ((((((y == 2) && (k <= 5)) && (0 <= k)) && (c <= 9223372036854775805)) && (2 <= c)) && (5 == x))) || ((((((k <= 5) && (0 <= k)) && (x == 14)) && (y == 3)) && (c <= 9223372036854775806)) && (3 <= c))) || (((((k <= 5) && (0 <= k)) && (y == 1)) && (x == 1)) && (c == 1))) - ProcedureContractResult [Line: 6]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (\old(cond) != 0) - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:37:34,045 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