./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.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 74ee724e3f951f784979d99a99eb9387abbe4e82f01cf4b5e019c1ec7f3be827 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:45:45,336 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:45:45,418 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:45:45,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:45:45,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:45:45,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:45:45,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:45:45,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:45:45,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:45:45,463 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:45:45,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:45:45,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:45:45,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:45:45,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:45:45,465 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:45:45,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:45:45,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:45:45,466 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:45:45,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:45:45,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:45:45,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:45:45,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:45:45,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:45:45,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:45:45,471 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:45:45,471 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:45:45,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:45:45,471 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:45:45,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:45:45,472 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:45:45,472 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:45:45,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:45:45,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:45:45,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:45:45,473 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:45:45,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:45:45,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:45:45,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:45:45,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:45:45,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:45:45,476 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:45:45,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:45:45,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74ee724e3f951f784979d99a99eb9387abbe4e82f01cf4b5e019c1ec7f3be827 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:45:45,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:45:45,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:45:45,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:45:45,850 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:45:45,851 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:45:45,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c [2024-09-12 19:45:47,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:45:47,560 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:45:47,560 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c [2024-09-12 19:45:47,573 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/1a75b27b0/4f29416695b348b981c94365f2dd67e0/FLAG239785412 [2024-09-12 19:45:47,958 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/1a75b27b0/4f29416695b348b981c94365f2dd67e0 [2024-09-12 19:45:47,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:45:47,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:45:47,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:45:47,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:45:47,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:45:47,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:45:47" (1/1) ... [2024-09-12 19:45:47,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa2471e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:47, skipping insertion in model container [2024-09-12 19:45:47,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:45:47" (1/1) ... [2024-09-12 19:45:47,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:45:48,136 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c[520,533] [2024-09-12 19:45:48,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:45:48,177 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:45:48,189 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound5.c[520,533] [2024-09-12 19:45:48,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:45:48,217 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:45:48,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48 WrapperNode [2024-09-12 19:45:48,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:45:48,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:45:48,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:45:48,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:45:48,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,243 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:45:48,246 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:45:48,247 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:45:48,247 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:45:48,247 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:45:48,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,277 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:45:48,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,281 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:45:48,293 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:45:48,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:45:48,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:45:48,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (1/1) ... [2024-09-12 19:45:48,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:45:48,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:48,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:45:48,332 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:45:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:45:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:45:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:45:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:45:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:45:48,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:45:48,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:45:48,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:45:48,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:45:48,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:45:48,438 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:45:48,440 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:45:48,818 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-09-12 19:45:48,818 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:45:48,843 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:45:48,844 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:45:48,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:45:48 BoogieIcfgContainer [2024-09-12 19:45:48,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:45:48,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:45:48,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:45:48,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:45:48,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:45:47" (1/3) ... [2024-09-12 19:45:48,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b262307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:45:48, skipping insertion in model container [2024-09-12 19:45:48,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:48" (2/3) ... [2024-09-12 19:45:48,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b262307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:45:48, skipping insertion in model container [2024-09-12 19:45:48,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:45:48" (3/3) ... [2024-09-12 19:45:48,855 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound5.c [2024-09-12 19:45:48,881 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:45:48,882 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2024-09-12 19:45:48,945 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:45:48,950 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;@5362d0cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:45:48,951 INFO L337 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-09-12 19:45:48,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 63 states have (on average 1.9047619047619047) internal successors, (120), 116 states have internal predecessors, (120), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:45:48,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 19:45:48,959 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:48,960 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:48,960 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:48,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:48,965 INFO L85 PathProgramCache]: Analyzing trace with hash -425422923, now seen corresponding path program 1 times [2024-09-12 19:45:48,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:48,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894971078] [2024-09-12 19:45:48,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:48,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:49,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:45:49,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:49,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894971078] [2024-09-12 19:45:49,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894971078] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:49,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:49,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:49,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726289367] [2024-09-12 19:45:49,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:49,130 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:45:49,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:49,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:45:49,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:45:49,168 INFO L87 Difference]: Start difference. First operand has 128 states, 63 states have (on average 1.9047619047619047) internal successors, (120), 116 states have internal predecessors, (120), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:45:49,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:49,268 INFO L93 Difference]: Finished difference Result 252 states and 279 transitions. [2024-09-12 19:45:49,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:45:49,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 19:45:49,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:49,279 INFO L225 Difference]: With dead ends: 252 [2024-09-12 19:45:49,279 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 19:45:49,282 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:45:49,285 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 10 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:49,285 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 228 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:49,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 19:45:49,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2024-09-12 19:45:49,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 61 states have (on average 1.8360655737704918) internal successors, (112), 110 states have internal predecessors, (112), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:45:49,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 126 transitions. [2024-09-12 19:45:49,337 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 126 transitions. Word has length 7 [2024-09-12 19:45:49,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:49,338 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 126 transitions. [2024-09-12 19:45:49,339 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:45:49,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:49,339 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 126 transitions. [2024-09-12 19:45:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 19:45:49,340 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:49,341 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:49,341 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:45:49,341 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:49,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:49,342 INFO L85 PathProgramCache]: Analyzing trace with hash -425425324, now seen corresponding path program 1 times [2024-09-12 19:45:49,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:49,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691522305] [2024-09-12 19:45:49,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:49,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:49,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:49,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:45:49,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:49,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691522305] [2024-09-12 19:45:49,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691522305] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:49,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:49,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:49,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449695354] [2024-09-12 19:45:49,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:49,505 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:49,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:49,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:49,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:49,507 INFO L87 Difference]: Start difference. First operand 120 states and 126 transitions. Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:45:49,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:49,619 INFO L93 Difference]: Finished difference Result 177 states and 185 transitions. [2024-09-12 19:45:49,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:45:49,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 19:45:49,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:49,622 INFO L225 Difference]: With dead ends: 177 [2024-09-12 19:45:49,622 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 19:45:49,623 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:45:49,624 INFO L434 NwaCegarLoop]: 116 mSDtfsCounter, 12 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:49,624 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 435 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:49,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 19:45:49,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-09-12 19:45:49,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 65 states have (on average 1.7846153846153847) internal successors, (116), 114 states have internal predecessors, (116), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:45:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 130 transitions. [2024-09-12 19:45:49,652 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 130 transitions. Word has length 7 [2024-09-12 19:45:49,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:49,653 INFO L474 AbstractCegarLoop]: Abstraction has 124 states and 130 transitions. [2024-09-12 19:45:49,654 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:45:49,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:49,656 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 130 transitions. [2024-09-12 19:45:49,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 19:45:49,657 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:49,657 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:49,657 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:45:49,657 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:49,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:49,657 INFO L85 PathProgramCache]: Analyzing trace with hash 602707066, now seen corresponding path program 1 times [2024-09-12 19:45:49,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:49,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190100584] [2024-09-12 19:45:49,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:49,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:49,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:49,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:45:49,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:49,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190100584] [2024-09-12 19:45:49,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190100584] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:49,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:49,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:49,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973917522] [2024-09-12 19:45:49,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:49,726 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:49,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:49,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:49,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:45:49,729 INFO L87 Difference]: Start difference. First operand 124 states and 130 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:45:49,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:49,968 INFO L93 Difference]: Finished difference Result 219 states and 231 transitions. [2024-09-12 19:45:49,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:49,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-12 19:45:49,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:49,973 INFO L225 Difference]: With dead ends: 219 [2024-09-12 19:45:49,975 INFO L226 Difference]: Without dead ends: 199 [2024-09-12 19:45:49,975 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:49,976 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 77 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:49,977 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 300 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:49,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-09-12 19:45:49,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 163. [2024-09-12 19:45:50,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 100 states have (on average 1.63) internal successors, (163), 149 states have internal predecessors, (163), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:45:50,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 185 transitions. [2024-09-12 19:45:50,014 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 185 transitions. Word has length 10 [2024-09-12 19:45:50,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:50,014 INFO L474 AbstractCegarLoop]: Abstraction has 163 states and 185 transitions. [2024-09-12 19:45:50,015 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:45:50,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:50,015 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 185 transitions. [2024-09-12 19:45:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 19:45:50,016 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:50,016 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:50,016 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:45:50,016 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:50,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:50,016 INFO L85 PathProgramCache]: Analyzing trace with hash -556719087, now seen corresponding path program 1 times [2024-09-12 19:45:50,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:50,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452083785] [2024-09-12 19:45:50,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:50,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:45:50,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452083785] [2024-09-12 19:45:50,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452083785] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:50,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:50,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 19:45:50,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211666796] [2024-09-12 19:45:50,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:50,178 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:50,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:50,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:50,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:50,179 INFO L87 Difference]: Start difference. First operand 163 states and 185 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:45:50,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:50,558 INFO L93 Difference]: Finished difference Result 193 states and 216 transitions. [2024-09-12 19:45:50,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:45:50,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-09-12 19:45:50,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:50,562 INFO L225 Difference]: With dead ends: 193 [2024-09-12 19:45:50,562 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 19:45:50,563 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:45:50,564 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:50,565 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 337 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:45:50,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 19:45:50,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 176. [2024-09-12 19:45:50,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 111 states have (on average 1.5765765765765767) internal successors, (175), 160 states have internal predecessors, (175), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:45:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 199 transitions. [2024-09-12 19:45:50,596 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 199 transitions. Word has length 17 [2024-09-12 19:45:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:50,597 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 199 transitions. [2024-09-12 19:45:50,599 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:45:50,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:50,600 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 199 transitions. [2024-09-12 19:45:50,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 19:45:50,601 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:50,601 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:50,601 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:45:50,601 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:50,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:50,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1036864962, now seen corresponding path program 1 times [2024-09-12 19:45:50,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:50,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959139766] [2024-09-12 19:45:50,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:50,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:50,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599631598] [2024-09-12 19:45:50,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:50,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:50,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:50,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:45:50,634 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:45:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:50,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:50,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:45:50,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:50,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:50,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959139766] [2024-09-12 19:45:50,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:50,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599631598] [2024-09-12 19:45:50,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599631598] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:50,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:50,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:45:50,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610997272] [2024-09-12 19:45:50,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:50,846 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:50,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:50,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:50,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:50,850 INFO L87 Difference]: Start difference. First operand 176 states and 199 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:45:51,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:51,096 INFO L93 Difference]: Finished difference Result 197 states and 213 transitions. [2024-09-12 19:45:51,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:51,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-09-12 19:45:51,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:51,099 INFO L225 Difference]: With dead ends: 197 [2024-09-12 19:45:51,099 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 19:45:51,099 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:51,100 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 40 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:51,102 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 268 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:51,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 19:45:51,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183. [2024-09-12 19:45:51,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 117 states have (on average 1.4871794871794872) internal successors, (174), 166 states have internal predecessors, (174), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:45:51,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 198 transitions. [2024-09-12 19:45:51,131 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 198 transitions. Word has length 28 [2024-09-12 19:45:51,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:51,131 INFO L474 AbstractCegarLoop]: Abstraction has 183 states and 198 transitions. [2024-09-12 19:45:51,131 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:45:51,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:51,132 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 198 transitions. [2024-09-12 19:45:51,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:45:51,133 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:51,133 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:51,146 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 19:45:51,335 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:51,336 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:51,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2039071583, now seen corresponding path program 1 times [2024-09-12 19:45:51,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:51,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805086] [2024-09-12 19:45:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:51,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:45:51,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:51,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805086] [2024-09-12 19:45:51,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805086] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:51,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:51,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:45:51,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468792236] [2024-09-12 19:45:51,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:51,469 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:51,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:51,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:51,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:51,473 INFO L87 Difference]: Start difference. First operand 183 states and 198 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:51,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:51,668 INFO L93 Difference]: Finished difference Result 193 states and 209 transitions. [2024-09-12 19:45:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:51,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-09-12 19:45:51,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:51,670 INFO L225 Difference]: With dead ends: 193 [2024-09-12 19:45:51,670 INFO L226 Difference]: Without dead ends: 189 [2024-09-12 19:45:51,671 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:51,671 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 93 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:51,673 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 227 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:51,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-09-12 19:45:51,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2024-09-12 19:45:51,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 119 states have (on average 1.4621848739495797) internal successors, (174), 168 states have internal predecessors, (174), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:45:51,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 198 transitions. [2024-09-12 19:45:51,702 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 198 transitions. Word has length 35 [2024-09-12 19:45:51,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:51,703 INFO L474 AbstractCegarLoop]: Abstraction has 185 states and 198 transitions. [2024-09-12 19:45:51,703 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:51,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:51,704 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 198 transitions. [2024-09-12 19:45:51,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:45:51,705 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:51,705 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:51,706 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 19:45:51,706 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:51,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:51,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1308821147, now seen corresponding path program 1 times [2024-09-12 19:45:51,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:51,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461213560] [2024-09-12 19:45:51,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:51,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:45:51,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:51,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461213560] [2024-09-12 19:45:51,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461213560] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:51,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:51,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:51,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067308990] [2024-09-12 19:45:51,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:51,858 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:51,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:51,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:51,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:45:51,861 INFO L87 Difference]: Start difference. First operand 185 states and 198 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:52,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:52,041 INFO L93 Difference]: Finished difference Result 191 states and 201 transitions. [2024-09-12 19:45:52,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:52,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-09-12 19:45:52,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:52,043 INFO L225 Difference]: With dead ends: 191 [2024-09-12 19:45:52,043 INFO L226 Difference]: Without dead ends: 187 [2024-09-12 19:45:52,043 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:52,044 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 38 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:52,044 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 225 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:52,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-09-12 19:45:52,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2024-09-12 19:45:52,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 120 states have (on average 1.4333333333333333) internal successors, (172), 169 states have internal predecessors, (172), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:45:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 196 transitions. [2024-09-12 19:45:52,064 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 196 transitions. Word has length 39 [2024-09-12 19:45:52,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:52,065 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 196 transitions. [2024-09-12 19:45:52,066 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:52,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 196 transitions. [2024-09-12 19:45:52,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 19:45:52,068 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:52,068 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:52,069 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:45:52,069 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:52,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:52,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1212702409, now seen corresponding path program 1 times [2024-09-12 19:45:52,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:52,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239579456] [2024-09-12 19:45:52,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:52,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:52,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1391708349] [2024-09-12 19:45:52,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:52,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:52,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:52,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:45:52,093 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:45:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:52,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:52,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:45:52,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:52,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:52,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239579456] [2024-09-12 19:45:52,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:52,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391708349] [2024-09-12 19:45:52,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391708349] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:52,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:52,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:45:52,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137675279] [2024-09-12 19:45:52,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:52,308 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:52,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:52,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:52,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:52,311 INFO L87 Difference]: Start difference. First operand 186 states and 196 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:52,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:52,461 INFO L93 Difference]: Finished difference Result 193 states and 202 transitions. [2024-09-12 19:45:52,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:52,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-09-12 19:45:52,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:52,463 INFO L225 Difference]: With dead ends: 193 [2024-09-12 19:45:52,464 INFO L226 Difference]: Without dead ends: 166 [2024-09-12 19:45:52,464 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:52,465 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 30 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:52,467 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 415 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:52,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-09-12 19:45:52,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-09-12 19:45:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 101 states have (on average 1.504950495049505) internal successors, (152), 150 states have internal predecessors, (152), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:45:52,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 172 transitions. [2024-09-12 19:45:52,481 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 172 transitions. Word has length 45 [2024-09-12 19:45:52,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:52,481 INFO L474 AbstractCegarLoop]: Abstraction has 166 states and 172 transitions. [2024-09-12 19:45:52,481 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:52,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:52,482 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 172 transitions. [2024-09-12 19:45:52,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 19:45:52,485 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:52,485 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:52,502 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:45:52,685 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:52,686 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:52,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash 291116170, now seen corresponding path program 1 times [2024-09-12 19:45:52,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:52,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696946620] [2024-09-12 19:45:52,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:52,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:52,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:52,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:52,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:52,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:52,831 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:52,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:52,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696946620] [2024-09-12 19:45:52,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696946620] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:52,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:52,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:45:52,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166646907] [2024-09-12 19:45:52,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:52,834 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:52,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:52,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:52,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:52,835 INFO L87 Difference]: Start difference. First operand 166 states and 172 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:52,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:52,998 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2024-09-12 19:45:52,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:52,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2024-09-12 19:45:53,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:53,002 INFO L225 Difference]: With dead ends: 169 [2024-09-12 19:45:53,002 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 19:45:53,002 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:53,003 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 9 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:53,003 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 302 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:53,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 19:45:53,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2024-09-12 19:45:53,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 102 states have (on average 1.5) internal successors, (153), 151 states have internal predecessors, (153), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:45:53,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 173 transitions. [2024-09-12 19:45:53,016 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 173 transitions. Word has length 52 [2024-09-12 19:45:53,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:53,017 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 173 transitions. [2024-09-12 19:45:53,017 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:53,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,017 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 173 transitions. [2024-09-12 19:45:53,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 19:45:53,021 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:53,021 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:53,022 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:45:53,022 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:53,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,022 INFO L85 PathProgramCache]: Analyzing trace with hash 434666791, now seen corresponding path program 1 times [2024-09-12 19:45:53,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:53,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980866382] [2024-09-12 19:45:53,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:53,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,159 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:53,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:53,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980866382] [2024-09-12 19:45:53,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980866382] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:53,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:53,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:45:53,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647936703] [2024-09-12 19:45:53,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:53,161 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:53,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:53,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:53,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:53,163 INFO L87 Difference]: Start difference. First operand 167 states and 173 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:53,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:53,343 INFO L93 Difference]: Finished difference Result 169 states and 175 transitions. [2024-09-12 19:45:53,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:53,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2024-09-12 19:45:53,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:53,345 INFO L225 Difference]: With dead ends: 169 [2024-09-12 19:45:53,345 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 19:45:53,345 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:53,347 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 8 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:53,347 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 305 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 19:45:53,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-09-12 19:45:53,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 103 states have (on average 1.4951456310679612) internal successors, (154), 152 states have internal predecessors, (154), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:45:53,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2024-09-12 19:45:53,362 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 53 [2024-09-12 19:45:53,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:53,362 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2024-09-12 19:45:53,363 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:53,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,363 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2024-09-12 19:45:53,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:45:53,364 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:53,364 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:53,364 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 19:45:53,365 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:53,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1102959721, now seen corresponding path program 1 times [2024-09-12 19:45:53,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:53,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934667658] [2024-09-12 19:45:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:53,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:53,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:53,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934667658] [2024-09-12 19:45:53,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934667658] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:53,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732264206] [2024-09-12 19:45:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:53,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:53,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:53,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:45:53,518 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:45:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:53,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:53,649 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:53,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:53,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732264206] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:53,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:45:53,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-09-12 19:45:53,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605499263] [2024-09-12 19:45:53,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:53,650 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:53,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:53,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:53,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:45:53,651 INFO L87 Difference]: Start difference. First operand 168 states and 174 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:53,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:53,714 INFO L93 Difference]: Finished difference Result 168 states and 174 transitions. [2024-09-12 19:45:53,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:45:53,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-09-12 19:45:53,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:53,716 INFO L225 Difference]: With dead ends: 168 [2024-09-12 19:45:53,716 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 19:45:53,717 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:45:53,717 INFO L434 NwaCegarLoop]: 118 mSDtfsCounter, 85 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:53,718 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 239 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:45:53,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 19:45:53,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-09-12 19:45:53,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.4854368932038835) internal successors, (153), 151 states have internal predecessors, (153), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:45:53,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 173 transitions. [2024-09-12 19:45:53,732 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 173 transitions. Word has length 55 [2024-09-12 19:45:53,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:53,733 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 173 transitions. [2024-09-12 19:45:53,733 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:53,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,733 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 173 transitions. [2024-09-12 19:45:53,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 19:45:53,734 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:53,735 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:53,752 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 19:45:53,935 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 19:45:53,936 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:53,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,937 INFO L85 PathProgramCache]: Analyzing trace with hash -167986973, now seen corresponding path program 1 times [2024-09-12 19:45:53,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:53,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523947088] [2024-09-12 19:45:53,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:53,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:54,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523947088] [2024-09-12 19:45:54,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523947088] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493851800] [2024-09-12 19:45:54,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:54,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:54,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:54,046 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:45:54,048 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:45:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:54,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:54,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:54,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493851800] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:54,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:45:54,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2024-09-12 19:45:54,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887852964] [2024-09-12 19:45:54,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:54,280 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:45:54,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:54,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:45:54,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:45:54,281 INFO L87 Difference]: Start difference. First operand 167 states and 173 transitions. Second operand has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:45:54,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:54,564 INFO L93 Difference]: Finished difference Result 448 states and 469 transitions. [2024-09-12 19:45:54,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 19:45:54,564 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 56 [2024-09-12 19:45:54,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:54,567 INFO L225 Difference]: With dead ends: 448 [2024-09-12 19:45:54,567 INFO L226 Difference]: Without dead ends: 396 [2024-09-12 19:45:54,568 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:45:54,570 INFO L434 NwaCegarLoop]: 145 mSDtfsCounter, 275 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:54,570 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 1065 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:54,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-09-12 19:45:54,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 300. [2024-09-12 19:45:54,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 222 states have (on average 1.662162162162162) internal successors, (369), 272 states have internal predecessors, (369), 23 states have call successors, (23), 8 states have call predecessors, (23), 7 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:45:54,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 411 transitions. [2024-09-12 19:45:54,597 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 411 transitions. Word has length 56 [2024-09-12 19:45:54,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:54,597 INFO L474 AbstractCegarLoop]: Abstraction has 300 states and 411 transitions. [2024-09-12 19:45:54,597 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:45:54,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:54,598 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 411 transitions. [2024-09-12 19:45:54,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:45:54,598 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:54,598 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:54,616 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:45:54,799 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:54,799 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:54,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:54,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1773277765, now seen corresponding path program 1 times [2024-09-12 19:45:54,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:54,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439819454] [2024-09-12 19:45:54,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:54,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:54,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439819454] [2024-09-12 19:45:54,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439819454] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88812790] [2024-09-12 19:45:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:54,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:54,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:54,860 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:45:54,861 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:45:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:45:54,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:54,980 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:54,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:54,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88812790] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:54,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:45:54,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-09-12 19:45:54,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515009514] [2024-09-12 19:45:54,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:54,981 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:54,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:54,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:54,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:54,982 INFO L87 Difference]: Start difference. First operand 300 states and 411 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:55,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:55,074 INFO L93 Difference]: Finished difference Result 300 states and 411 transitions. [2024-09-12 19:45:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:45:55,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2024-09-12 19:45:55,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:55,077 INFO L225 Difference]: With dead ends: 300 [2024-09-12 19:45:55,077 INFO L226 Difference]: Without dead ends: 291 [2024-09-12 19:45:55,077 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:55,078 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 126 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:55,078 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 139 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:55,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-09-12 19:45:55,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-09-12 19:45:55,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 222 states have (on average 1.5405405405405406) internal successors, (342), 263 states have internal predecessors, (342), 23 states have call successors, (23), 8 states have call predecessors, (23), 7 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:45:55,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 384 transitions. [2024-09-12 19:45:55,102 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 384 transitions. Word has length 58 [2024-09-12 19:45:55,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:55,103 INFO L474 AbstractCegarLoop]: Abstraction has 291 states and 384 transitions. [2024-09-12 19:45:55,103 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:55,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 384 transitions. [2024-09-12 19:45:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 19:45:55,104 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:55,104 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:55,121 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 19:45:55,305 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:45:55,306 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:55,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:55,306 INFO L85 PathProgramCache]: Analyzing trace with hash -862964080, now seen corresponding path program 1 times [2024-09-12 19:45:55,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:55,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481395459] [2024-09-12 19:45:55,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:55,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:55,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481395459] [2024-09-12 19:45:55,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481395459] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:55,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511072524] [2024-09-12 19:45:55,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:55,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:55,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:55,364 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:45:55,366 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:45:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:45:55,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:55,467 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:55,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:55,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511072524] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:55,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:45:55,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-09-12 19:45:55,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699156684] [2024-09-12 19:45:55,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:55,554 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:45:55,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:55,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:45:55,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:45:55,555 INFO L87 Difference]: Start difference. First operand 291 states and 384 transitions. Second operand has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 19:45:55,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:55,803 INFO L93 Difference]: Finished difference Result 328 states and 401 transitions. [2024-09-12 19:45:55,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:45:55,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 59 [2024-09-12 19:45:55,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:55,806 INFO L225 Difference]: With dead ends: 328 [2024-09-12 19:45:55,806 INFO L226 Difference]: Without dead ends: 319 [2024-09-12 19:45:55,806 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:45:55,807 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 221 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:55,807 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 426 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:55,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-09-12 19:45:55,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 282. [2024-09-12 19:45:55,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 222 states have (on average 1.4189189189189189) internal successors, (315), 254 states have internal predecessors, (315), 23 states have call successors, (23), 8 states have call predecessors, (23), 7 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:45:55,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 357 transitions. [2024-09-12 19:45:55,831 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 357 transitions. Word has length 59 [2024-09-12 19:45:55,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:55,831 INFO L474 AbstractCegarLoop]: Abstraction has 282 states and 357 transitions. [2024-09-12 19:45:55,832 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 19:45:55,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:55,832 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 357 transitions. [2024-09-12 19:45:55,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 19:45:55,832 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:55,833 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:55,848 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:45:56,033 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 19:45:56,033 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:56,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash -740058138, now seen corresponding path program 1 times [2024-09-12 19:45:56,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:56,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704203677] [2024-09-12 19:45:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:56,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,202 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:56,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:56,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704203677] [2024-09-12 19:45:56,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704203677] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:56,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023716663] [2024-09-12 19:45:56,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:56,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:56,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:56,205 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:45:56,206 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:45:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:45:56,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:56,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-12 19:45:56,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023716663] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:56,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:45:56,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 7] total 12 [2024-09-12 19:45:56,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725207122] [2024-09-12 19:45:56,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:56,511 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:56,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:56,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:56,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:45:56,511 INFO L87 Difference]: Start difference. First operand 282 states and 357 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:57,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:57,426 INFO L93 Difference]: Finished difference Result 296 states and 370 transitions. [2024-09-12 19:45:57,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:57,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 65 [2024-09-12 19:45:57,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:57,429 INFO L225 Difference]: With dead ends: 296 [2024-09-12 19:45:57,429 INFO L226 Difference]: Without dead ends: 294 [2024-09-12 19:45:57,429 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:45:57,429 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 32 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:57,430 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 130 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:45:57,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-09-12 19:45:57,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-09-12 19:45:57,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 231 states have (on average 1.4025974025974026) internal successors, (324), 263 states have internal predecessors, (324), 23 states have call successors, (23), 11 states have call predecessors, (23), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:45:57,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 366 transitions. [2024-09-12 19:45:57,465 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 366 transitions. Word has length 65 [2024-09-12 19:45:57,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:57,465 INFO L474 AbstractCegarLoop]: Abstraction has 294 states and 366 transitions. [2024-09-12 19:45:57,465 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:57,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 366 transitions. [2024-09-12 19:45:57,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 19:45:57,467 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:57,467 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:57,485 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 19:45:57,672 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:45:57,673 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:57,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:57,673 INFO L85 PathProgramCache]: Analyzing trace with hash -878058857, now seen corresponding path program 1 times [2024-09-12 19:45:57,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:57,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407168235] [2024-09-12 19:45:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:57,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:57,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875233756] [2024-09-12 19:45:57,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:57,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:57,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:57,688 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:45:57,689 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:45:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:57,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:45:57,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:45:57,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:57,922 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:45:57,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:57,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407168235] [2024-09-12 19:45:57,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:57,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875233756] [2024-09-12 19:45:57,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875233756] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:57,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:45:57,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 19:45:57,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537823601] [2024-09-12 19:45:57,923 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:57,924 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:57,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:57,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:57,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:57,924 INFO L87 Difference]: Start difference. First operand 294 states and 366 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 19:45:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:58,183 INFO L93 Difference]: Finished difference Result 371 states and 394 transitions. [2024-09-12 19:45:58,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:58,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 72 [2024-09-12 19:45:58,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:58,186 INFO L225 Difference]: With dead ends: 371 [2024-09-12 19:45:58,186 INFO L226 Difference]: Without dead ends: 369 [2024-09-12 19:45:58,186 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:45:58,187 INFO L434 NwaCegarLoop]: 134 mSDtfsCounter, 260 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:58,187 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 395 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-09-12 19:45:58,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 317. [2024-09-12 19:45:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 252 states have (on average 1.3571428571428572) internal successors, (342), 284 states have internal predecessors, (342), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 19:45:58,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 388 transitions. [2024-09-12 19:45:58,250 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 388 transitions. Word has length 72 [2024-09-12 19:45:58,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:58,250 INFO L474 AbstractCegarLoop]: Abstraction has 317 states and 388 transitions. [2024-09-12 19:45:58,250 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 19:45:58,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 388 transitions. [2024-09-12 19:45:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 19:45:58,251 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:58,251 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:58,269 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 19:45:58,455 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:58,456 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:58,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:58,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1217295177, now seen corresponding path program 2 times [2024-09-12 19:45:58,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:58,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151539530] [2024-09-12 19:45:58,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:58,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:58,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388905021] [2024-09-12 19:45:58,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:45:58,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:58,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:58,480 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:45:58,481 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:45:58,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:45:58,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:45:58,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:45:58,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:58,834 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:45:58,834 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:45:59,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:59,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151539530] [2024-09-12 19:45:59,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:59,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388905021] [2024-09-12 19:45:59,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388905021] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:59,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:45:59,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-09-12 19:45:59,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895419402] [2024-09-12 19:45:59,091 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:59,092 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:45:59,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:59,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:45:59,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:45:59,093 INFO L87 Difference]: Start difference. First operand 317 states and 388 transitions. Second operand has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 16 states have internal predecessors, (110), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 19:45:59,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:59,948 INFO L93 Difference]: Finished difference Result 347 states and 406 transitions. [2024-09-12 19:45:59,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:45:59,948 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 16 states have internal predecessors, (110), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 76 [2024-09-12 19:45:59,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:59,951 INFO L225 Difference]: With dead ends: 347 [2024-09-12 19:45:59,951 INFO L226 Difference]: Without dead ends: 287 [2024-09-12 19:45:59,952 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:45:59,953 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 141 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:59,953 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 205 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:45:59,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-09-12 19:46:00,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 279. [2024-09-12 19:46:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 227 states have (on average 1.1497797356828194) internal successors, (261), 247 states have internal predecessors, (261), 22 states have call successors, (22), 13 states have call predecessors, (22), 12 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 19:46:00,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 304 transitions. [2024-09-12 19:46:00,026 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 304 transitions. Word has length 76 [2024-09-12 19:46:00,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:00,027 INFO L474 AbstractCegarLoop]: Abstraction has 279 states and 304 transitions. [2024-09-12 19:46:00,027 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 16 states have internal predecessors, (110), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 19:46:00,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:00,027 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 304 transitions. [2024-09-12 19:46:00,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-09-12 19:46:00,028 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:00,028 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:00,044 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:46:00,232 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:46:00,233 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:00,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:00,233 INFO L85 PathProgramCache]: Analyzing trace with hash -884656205, now seen corresponding path program 1 times [2024-09-12 19:46:00,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:00,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162097001] [2024-09-12 19:46:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:00,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,284 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-09-12 19:46:00,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:00,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162097001] [2024-09-12 19:46:00,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162097001] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:00,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:00,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:46:00,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213287188] [2024-09-12 19:46:00,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:00,285 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:46:00,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:00,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:46:00,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:46:00,285 INFO L87 Difference]: Start difference. First operand 279 states and 304 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:00,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:00,447 INFO L93 Difference]: Finished difference Result 279 states and 304 transitions. [2024-09-12 19:46:00,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:46:00,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 98 [2024-09-12 19:46:00,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:00,450 INFO L225 Difference]: With dead ends: 279 [2024-09-12 19:46:00,450 INFO L226 Difference]: Without dead ends: 276 [2024-09-12 19:46:00,451 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:46:00,451 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 56 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:00,453 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 96 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:00,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-09-12 19:46:00,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-09-12 19:46:00,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 227 states have (on average 1.1233480176211454) internal successors, (255), 244 states have internal predecessors, (255), 22 states have call successors, (22), 13 states have call predecessors, (22), 12 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 19:46:00,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 298 transitions. [2024-09-12 19:46:00,536 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 298 transitions. Word has length 98 [2024-09-12 19:46:00,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:00,537 INFO L474 AbstractCegarLoop]: Abstraction has 276 states and 298 transitions. [2024-09-12 19:46:00,538 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:00,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:00,538 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 298 transitions. [2024-09-12 19:46:00,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:46:00,539 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:00,539 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:00,539 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 19:46:00,539 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:00,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:00,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1654538470, now seen corresponding path program 1 times [2024-09-12 19:46:00,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:00,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978484229] [2024-09-12 19:46:00,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:00,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 19:46:00,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:00,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978484229] [2024-09-12 19:46:00,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978484229] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:00,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:00,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:46:00,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496940745] [2024-09-12 19:46:00,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:00,601 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:46:00,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:00,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:46:00,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:46:00,602 INFO L87 Difference]: Start difference. First operand 276 states and 298 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:00,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:00,768 INFO L93 Difference]: Finished difference Result 292 states and 317 transitions. [2024-09-12 19:46:00,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:46:00,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-09-12 19:46:00,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:00,770 INFO L225 Difference]: With dead ends: 292 [2024-09-12 19:46:00,770 INFO L226 Difference]: Without dead ends: 287 [2024-09-12 19:46:00,770 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:46:00,771 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 46 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:00,771 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 164 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:00,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-09-12 19:46:00,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 271. [2024-09-12 19:46:00,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 225 states have (on average 1.0977777777777777) internal successors, (247), 239 states have internal predecessors, (247), 22 states have call successors, (22), 13 states have call predecessors, (22), 12 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 19:46:00,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 290 transitions. [2024-09-12 19:46:00,834 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 290 transitions. Word has length 99 [2024-09-12 19:46:00,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:00,834 INFO L474 AbstractCegarLoop]: Abstraction has 271 states and 290 transitions. [2024-09-12 19:46:00,835 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:00,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:00,835 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 290 transitions. [2024-09-12 19:46:00,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 19:46:00,836 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:00,836 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:00,836 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 19:46:00,836 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:00,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:00,836 INFO L85 PathProgramCache]: Analyzing trace with hash -873566596, now seen corresponding path program 1 times [2024-09-12 19:46:00,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:00,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029757428] [2024-09-12 19:46:00,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:00,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:00,949 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:46:00,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:00,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029757428] [2024-09-12 19:46:00,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029757428] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:00,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387645267] [2024-09-12 19:46:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:00,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:00,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:00,951 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:00,963 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:46:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:46:01,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:01,246 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:46:01,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:46:01,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387645267] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:01,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:01,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-09-12 19:46:01,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926430834] [2024-09-12 19:46:01,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:01,408 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:46:01,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:01,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:46:01,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:46:01,410 INFO L87 Difference]: Start difference. First operand 271 states and 290 transitions. Second operand has 15 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 19:46:01,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:01,801 INFO L93 Difference]: Finished difference Result 317 states and 351 transitions. [2024-09-12 19:46:01,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:46:01,802 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 101 [2024-09-12 19:46:01,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:01,805 INFO L225 Difference]: With dead ends: 317 [2024-09-12 19:46:01,805 INFO L226 Difference]: Without dead ends: 316 [2024-09-12 19:46:01,806 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=206, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:46:01,806 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 92 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:01,807 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 242 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:46:01,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-09-12 19:46:01,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 292. [2024-09-12 19:46:01,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 244 states have (on average 1.1024590163934427) internal successors, (269), 258 states have internal predecessors, (269), 24 states have call successors, (24), 13 states have call predecessors, (24), 12 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 19:46:01,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 316 transitions. [2024-09-12 19:46:01,886 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 316 transitions. Word has length 101 [2024-09-12 19:46:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:01,886 INFO L474 AbstractCegarLoop]: Abstraction has 292 states and 316 transitions. [2024-09-12 19:46:01,887 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 19:46:01,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 316 transitions. [2024-09-12 19:46:01,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 19:46:01,888 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:01,888 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:01,904 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 19:46:02,088 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:02,089 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:02,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:02,089 INFO L85 PathProgramCache]: Analyzing trace with hash 808020485, now seen corresponding path program 1 times [2024-09-12 19:46:02,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:02,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164759192] [2024-09-12 19:46:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:02,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:02,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:02,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164759192] [2024-09-12 19:46:02,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164759192] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:02,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120208849] [2024-09-12 19:46:02,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:02,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:02,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:02,269 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:02,270 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:46:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:46:02,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:02,445 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 48 proven. 80 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:46:02,445 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:02,608 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:02,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120208849] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:02,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:02,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 16 [2024-09-12 19:46:02,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708155399] [2024-09-12 19:46:02,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:02,610 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:46:02,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:02,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:46:02,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:46:02,611 INFO L87 Difference]: Start difference. First operand 292 states and 316 transitions. Second operand has 16 states, 16 states have (on average 10.75) internal successors, (172), 15 states have internal predecessors, (172), 8 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2024-09-12 19:46:02,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:02,961 INFO L93 Difference]: Finished difference Result 401 states and 413 transitions. [2024-09-12 19:46:02,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 19:46:02,962 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.75) internal successors, (172), 15 states have internal predecessors, (172), 8 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) Word has length 127 [2024-09-12 19:46:02,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:02,964 INFO L225 Difference]: With dead ends: 401 [2024-09-12 19:46:02,964 INFO L226 Difference]: Without dead ends: 338 [2024-09-12 19:46:02,964 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 265 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2024-09-12 19:46:02,965 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 130 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:02,965 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 567 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:02,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-09-12 19:46:03,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 310. [2024-09-12 19:46:03,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 259 states have (on average 1.0888030888030888) internal successors, (282), 272 states have internal predecessors, (282), 24 states have call successors, (24), 16 states have call predecessors, (24), 15 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 19:46:03,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 329 transitions. [2024-09-12 19:46:03,036 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 329 transitions. Word has length 127 [2024-09-12 19:46:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:03,037 INFO L474 AbstractCegarLoop]: Abstraction has 310 states and 329 transitions. [2024-09-12 19:46:03,037 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.75) internal successors, (172), 15 states have internal predecessors, (172), 8 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2024-09-12 19:46:03,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:03,037 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 329 transitions. [2024-09-12 19:46:03,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 19:46:03,038 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:03,038 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:03,055 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:03,239 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:03,239 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:03,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:03,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1473912839, now seen corresponding path program 1 times [2024-09-12 19:46:03,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:03,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91888243] [2024-09-12 19:46:03,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:03,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:46:03,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792535518] [2024-09-12 19:46:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:03,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:03,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:03,266 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:03,268 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:46:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:46:03,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:03,426 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:03,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:03,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:03,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91888243] [2024-09-12 19:46:03,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:03,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792535518] [2024-09-12 19:46:03,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792535518] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:03,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:46:03,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:46:03,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881340239] [2024-09-12 19:46:03,608 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:03,608 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:46:03,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:03,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:46:03,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:46:03,609 INFO L87 Difference]: Start difference. First operand 310 states and 329 transitions. Second operand has 8 states, 7 states have (on average 24.285714285714285) internal successors, (170), 8 states have internal predecessors, (170), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 19:46:04,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:04,022 INFO L93 Difference]: Finished difference Result 416 states and 454 transitions. [2024-09-12 19:46:04,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:46:04,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.285714285714285) internal successors, (170), 8 states have internal predecessors, (170), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 127 [2024-09-12 19:46:04,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:04,025 INFO L225 Difference]: With dead ends: 416 [2024-09-12 19:46:04,025 INFO L226 Difference]: Without dead ends: 414 [2024-09-12 19:46:04,025 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:46:04,026 INFO L434 NwaCegarLoop]: 107 mSDtfsCounter, 230 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:04,026 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 425 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:04,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-09-12 19:46:04,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 374. [2024-09-12 19:46:04,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 316 states have (on average 1.0981012658227849) internal successors, (347), 329 states have internal predecessors, (347), 31 states have call successors, (31), 16 states have call predecessors, (31), 15 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 19:46:04,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 408 transitions. [2024-09-12 19:46:04,129 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 408 transitions. Word has length 127 [2024-09-12 19:46:04,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:04,130 INFO L474 AbstractCegarLoop]: Abstraction has 374 states and 408 transitions. [2024-09-12 19:46:04,130 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.285714285714285) internal successors, (170), 8 states have internal predecessors, (170), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 19:46:04,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:04,130 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 408 transitions. [2024-09-12 19:46:04,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-09-12 19:46:04,131 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:04,132 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:04,148 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:46:04,332 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:46:04,332 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:04,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:04,333 INFO L85 PathProgramCache]: Analyzing trace with hash -908966935, now seen corresponding path program 1 times [2024-09-12 19:46:04,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:04,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139182817] [2024-09-12 19:46:04,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:04,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:04,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:04,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139182817] [2024-09-12 19:46:04,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139182817] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:04,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757324912] [2024-09-12 19:46:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:04,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:04,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:04,499 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:04,501 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:46:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:46:04,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:04,803 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:04,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:04,972 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:04,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757324912] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:04,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:04,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 16 [2024-09-12 19:46:04,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527287800] [2024-09-12 19:46:04,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:04,974 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:46:04,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:04,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:46:04,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:46:04,975 INFO L87 Difference]: Start difference. First operand 374 states and 408 transitions. Second operand has 17 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 9 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2024-09-12 19:46:05,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:05,429 INFO L93 Difference]: Finished difference Result 394 states and 431 transitions. [2024-09-12 19:46:05,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:46:05,430 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 9 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) Word has length 129 [2024-09-12 19:46:05,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:05,432 INFO L225 Difference]: With dead ends: 394 [2024-09-12 19:46:05,432 INFO L226 Difference]: Without dead ends: 390 [2024-09-12 19:46:05,433 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=314, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:46:05,433 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 198 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:05,434 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 394 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:46:05,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-09-12 19:46:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 377. [2024-09-12 19:46:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 320 states have (on average 1.071875) internal successors, (343), 331 states have internal predecessors, (343), 32 states have call successors, (32), 16 states have call predecessors, (32), 15 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 19:46:05,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 406 transitions. [2024-09-12 19:46:05,547 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 406 transitions. Word has length 129 [2024-09-12 19:46:05,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:05,547 INFO L474 AbstractCegarLoop]: Abstraction has 377 states and 406 transitions. [2024-09-12 19:46:05,548 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 9 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2024-09-12 19:46:05,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:05,548 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 406 transitions. [2024-09-12 19:46:05,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-09-12 19:46:05,549 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:05,549 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:05,568 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 19:46:05,753 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:05,754 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:05,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:05,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1638860853, now seen corresponding path program 1 times [2024-09-12 19:46:05,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:05,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420991641] [2024-09-12 19:46:05,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:05,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:05,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:05,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420991641] [2024-09-12 19:46:05,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420991641] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:05,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403970326] [2024-09-12 19:46:05,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:05,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:05,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:05,925 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:05,927 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:46:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:46:05,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:06,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:46:06,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403970326] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:06,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:46:06,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2024-09-12 19:46:06,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23692021] [2024-09-12 19:46:06,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:06,323 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:46:06,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:06,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:46:06,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:46:06,324 INFO L87 Difference]: Start difference. First operand 377 states and 406 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:46:06,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:06,548 INFO L93 Difference]: Finished difference Result 377 states and 406 transitions. [2024-09-12 19:46:06,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:46:06,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 131 [2024-09-12 19:46:06,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:06,551 INFO L225 Difference]: With dead ends: 377 [2024-09-12 19:46:06,551 INFO L226 Difference]: Without dead ends: 321 [2024-09-12 19:46:06,552 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:46:06,552 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 146 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:06,552 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 218 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:06,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-09-12 19:46:06,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2024-09-12 19:46:06,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 275 states have (on average 1.050909090909091) internal successors, (289), 282 states have internal predecessors, (289), 26 states have call successors, (26), 13 states have call predecessors, (26), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 19:46:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 340 transitions. [2024-09-12 19:46:06,663 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 340 transitions. Word has length 131 [2024-09-12 19:46:06,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:06,663 INFO L474 AbstractCegarLoop]: Abstraction has 321 states and 340 transitions. [2024-09-12 19:46:06,664 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:46:06,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:06,664 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 340 transitions. [2024-09-12 19:46:06,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-09-12 19:46:06,666 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:06,666 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:06,682 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 19:46:06,866 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:46:06,867 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:06,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:06,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1986686408, now seen corresponding path program 2 times [2024-09-12 19:46:06,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:06,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686109907] [2024-09-12 19:46:06,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:06,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:46:06,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1808596791] [2024-09-12 19:46:06,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:46:06,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:06,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:06,903 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:06,904 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:46:06,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:46:06,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:06,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:46:06,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:46:07,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:07,438 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:46:07,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:07,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686109907] [2024-09-12 19:46:07,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:07,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808596791] [2024-09-12 19:46:07,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808596791] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:07,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:46:07,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-12 19:46:07,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013288076] [2024-09-12 19:46:07,439 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:07,440 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:46:07,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:07,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:46:07,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:46:07,441 INFO L87 Difference]: Start difference. First operand 321 states and 340 transitions. Second operand has 12 states, 11 states have (on average 27.09090909090909) internal successors, (298), 12 states have internal predecessors, (298), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-09-12 19:46:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:08,089 INFO L93 Difference]: Finished difference Result 549 states and 590 transitions. [2024-09-12 19:46:08,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:46:08,089 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 27.09090909090909) internal successors, (298), 12 states have internal predecessors, (298), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 216 [2024-09-12 19:46:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:08,092 INFO L225 Difference]: With dead ends: 549 [2024-09-12 19:46:08,092 INFO L226 Difference]: Without dead ends: 547 [2024-09-12 19:46:08,093 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:46:08,093 INFO L434 NwaCegarLoop]: 154 mSDtfsCounter, 384 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:08,093 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 875 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:46:08,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-09-12 19:46:08,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 473. [2024-09-12 19:46:08,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 415 states have (on average 1.072289156626506) internal successors, (445), 422 states have internal predecessors, (445), 38 states have call successors, (38), 13 states have call predecessors, (38), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 19:46:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 520 transitions. [2024-09-12 19:46:08,252 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 520 transitions. Word has length 216 [2024-09-12 19:46:08,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:08,253 INFO L474 AbstractCegarLoop]: Abstraction has 473 states and 520 transitions. [2024-09-12 19:46:08,253 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 27.09090909090909) internal successors, (298), 12 states have internal predecessors, (298), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-09-12 19:46:08,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 520 transitions. [2024-09-12 19:46:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-09-12 19:46:08,261 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:08,261 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:08,278 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 19:46:08,461 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 19:46:08,462 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:08,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:08,463 INFO L85 PathProgramCache]: Analyzing trace with hash 801967739, now seen corresponding path program 2 times [2024-09-12 19:46:08,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:08,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480672951] [2024-09-12 19:46:08,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:08,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:46:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:46:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:46:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:46:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 19:46:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 19:46:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 19:46:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:08,859 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 19:46:08,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:08,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480672951] [2024-09-12 19:46:08,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480672951] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:08,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916458729] [2024-09-12 19:46:08,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:46:08,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:08,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:08,861 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:08,863 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:46:08,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:46:08,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:08,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:46:08,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:09,164 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 24 proven. 24 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2024-09-12 19:46:09,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:09,391 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2024-09-12 19:46:09,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916458729] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:09,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:09,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 20 [2024-09-12 19:46:09,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937664063] [2024-09-12 19:46:09,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:09,392 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:46:09,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:09,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:46:09,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:46:09,394 INFO L87 Difference]: Start difference. First operand 473 states and 520 transitions. Second operand has 21 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 10 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2024-09-12 19:46:10,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:10,237 INFO L93 Difference]: Finished difference Result 476 states and 522 transitions. [2024-09-12 19:46:10,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 19:46:10,237 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 10 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) Word has length 245 [2024-09-12 19:46:10,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:10,240 INFO L225 Difference]: With dead ends: 476 [2024-09-12 19:46:10,240 INFO L226 Difference]: Without dead ends: 475 [2024-09-12 19:46:10,241 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=411, Invalid=1659, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 19:46:10,241 INFO L434 NwaCegarLoop]: 109 mSDtfsCounter, 408 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:10,241 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 1059 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:46:10,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-09-12 19:46:10,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 472. [2024-09-12 19:46:10,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 415 states have (on average 1.0578313253012048) internal successors, (439), 421 states have internal predecessors, (439), 38 states have call successors, (38), 13 states have call predecessors, (38), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 19:46:10,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 514 transitions. [2024-09-12 19:46:10,382 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 514 transitions. Word has length 245 [2024-09-12 19:46:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:10,383 INFO L474 AbstractCegarLoop]: Abstraction has 472 states and 514 transitions. [2024-09-12 19:46:10,383 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 10 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2024-09-12 19:46:10,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 514 transitions. [2024-09-12 19:46:10,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-09-12 19:46:10,386 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:10,386 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:10,403 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:10,587 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:10,587 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:10,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:10,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1482115313, now seen corresponding path program 2 times [2024-09-12 19:46:10,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:10,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041888112] [2024-09-12 19:46:10,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:10,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:46:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:46:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:46:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:46:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 19:46:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 19:46:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 19:46:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 19:46:10,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:10,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041888112] [2024-09-12 19:46:10,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041888112] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:10,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383812051] [2024-09-12 19:46:10,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:46:10,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:10,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:10,935 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:10,937 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:46:11,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:46:11,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:11,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:46:11,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:11,278 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 735 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:46:11,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:11,637 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 19:46:11,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383812051] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:11,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:11,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 29 [2024-09-12 19:46:11,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438966663] [2024-09-12 19:46:11,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:11,638 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-12 19:46:11,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:11,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-12 19:46:11,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=633, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:46:11,639 INFO L87 Difference]: Start difference. First operand 472 states and 514 transitions. Second operand has 30 states, 29 states have (on average 12.551724137931034) internal successors, (364), 29 states have internal predecessors, (364), 14 states have call successors, (50), 10 states have call predecessors, (50), 9 states have return successors, (48), 13 states have call predecessors, (48), 11 states have call successors, (48) [2024-09-12 19:46:12,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:12,458 INFO L93 Difference]: Finished difference Result 684 states and 715 transitions. [2024-09-12 19:46:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 19:46:12,459 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 12.551724137931034) internal successors, (364), 29 states have internal predecessors, (364), 14 states have call successors, (50), 10 states have call predecessors, (50), 9 states have return successors, (48), 13 states have call predecessors, (48), 11 states have call successors, (48) Word has length 248 [2024-09-12 19:46:12,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:12,466 INFO L225 Difference]: With dead ends: 684 [2024-09-12 19:46:12,466 INFO L226 Difference]: Without dead ends: 683 [2024-09-12 19:46:12,468 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1006, Invalid=3026, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 19:46:12,468 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 375 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:12,468 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 860 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:46:12,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-09-12 19:46:12,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 637. [2024-09-12 19:46:12,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 552 states have (on average 1.0471014492753623) internal successors, (578), 563 states have internal predecessors, (578), 52 states have call successors, (52), 27 states have call predecessors, (52), 26 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 19:46:12,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 681 transitions. [2024-09-12 19:46:12,682 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 681 transitions. Word has length 248 [2024-09-12 19:46:12,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:12,683 INFO L474 AbstractCegarLoop]: Abstraction has 637 states and 681 transitions. [2024-09-12 19:46:12,683 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 12.551724137931034) internal successors, (364), 29 states have internal predecessors, (364), 14 states have call successors, (50), 10 states have call predecessors, (50), 9 states have return successors, (48), 13 states have call predecessors, (48), 11 states have call successors, (48) [2024-09-12 19:46:12,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:12,683 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 681 transitions. [2024-09-12 19:46:12,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-09-12 19:46:12,685 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:12,685 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:12,701 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 19:46:12,885 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:46:12,886 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:12,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:12,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1680487866, now seen corresponding path program 1 times [2024-09-12 19:46:12,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:12,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559720607] [2024-09-12 19:46:12,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:12,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:46:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:46:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:46:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:46:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 19:46:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 19:46:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 19:46:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 19:46:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 19:46:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 19:46:13,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:13,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559720607] [2024-09-12 19:46:13,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559720607] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:13,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096594341] [2024-09-12 19:46:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:13,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:13,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:13,292 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:13,294 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:46:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:13,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:46:13,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 19:46:14,017 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:14,446 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 19:46:14,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096594341] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:14,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:14,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2024-09-12 19:46:14,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187916816] [2024-09-12 19:46:14,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:14,447 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-12 19:46:14,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:14,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-12 19:46:14,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 19:46:14,449 INFO L87 Difference]: Start difference. First operand 637 states and 681 transitions. Second operand has 36 states, 35 states have (on average 15.914285714285715) internal successors, (557), 35 states have internal predecessors, (557), 19 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 19 states have call predecessors, (52), 19 states have call successors, (52) [2024-09-12 19:46:15,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:15,898 INFO L93 Difference]: Finished difference Result 702 states and 751 transitions. [2024-09-12 19:46:15,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 19:46:15,899 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 15.914285714285715) internal successors, (557), 35 states have internal predecessors, (557), 19 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 19 states have call predecessors, (52), 19 states have call successors, (52) Word has length 273 [2024-09-12 19:46:15,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:15,902 INFO L225 Difference]: With dead ends: 702 [2024-09-12 19:46:15,902 INFO L226 Difference]: Without dead ends: 672 [2024-09-12 19:46:15,904 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=989, Invalid=2317, Unknown=0, NotChecked=0, Total=3306 [2024-09-12 19:46:15,904 INFO L434 NwaCegarLoop]: 111 mSDtfsCounter, 788 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:15,904 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 1575 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:46:15,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-09-12 19:46:16,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 654. [2024-09-12 19:46:16,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 567 states have (on average 1.0405643738977073) internal successors, (590), 578 states have internal predecessors, (590), 54 states have call successors, (54), 27 states have call predecessors, (54), 26 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 19:46:16,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 697 transitions. [2024-09-12 19:46:16,155 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 697 transitions. Word has length 273 [2024-09-12 19:46:16,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:16,156 INFO L474 AbstractCegarLoop]: Abstraction has 654 states and 697 transitions. [2024-09-12 19:46:16,156 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 15.914285714285715) internal successors, (557), 35 states have internal predecessors, (557), 19 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 19 states have call predecessors, (52), 19 states have call successors, (52) [2024-09-12 19:46:16,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:16,156 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 697 transitions. [2024-09-12 19:46:16,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-09-12 19:46:16,158 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:16,158 INFO L216 NwaCegarLoop]: trace histogram [20, 20, 20, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:16,174 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 19:46:16,362 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:46:16,363 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:16,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:16,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1268071847, now seen corresponding path program 2 times [2024-09-12 19:46:16,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:16,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425704354] [2024-09-12 19:46:16,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:16,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:46:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:46:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:46:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:46:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 19:46:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 19:46:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 19:46:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 19:46:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 19:46:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 19:46:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 19:46:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 19:46:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:16,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 540 proven. 24 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 19:46:16,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:16,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425704354] [2024-09-12 19:46:16,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425704354] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:16,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903748206] [2024-09-12 19:46:16,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:46:16,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:16,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:16,800 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:16,802 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:46:16,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:46:16,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:16,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:46:16,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 1219 proven. 5 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-09-12 19:46:17,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 559 proven. 5 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 19:46:17,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903748206] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:17,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:17,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 18 [2024-09-12 19:46:17,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81288094] [2024-09-12 19:46:17,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:17,478 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 19:46:17,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:17,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 19:46:17,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:46:17,479 INFO L87 Difference]: Start difference. First operand 654 states and 697 transitions. Second operand has 18 states, 18 states have (on average 13.5) internal successors, (243), 17 states have internal predecessors, (243), 9 states have call successors, (44), 10 states have call predecessors, (44), 9 states have return successors, (42), 8 states have call predecessors, (42), 7 states have call successors, (42) [2024-09-12 19:46:17,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:17,808 INFO L93 Difference]: Finished difference Result 654 states and 697 transitions. [2024-09-12 19:46:17,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:46:17,809 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.5) internal successors, (243), 17 states have internal predecessors, (243), 9 states have call successors, (44), 10 states have call predecessors, (44), 9 states have return successors, (42), 8 states have call predecessors, (42), 7 states have call successors, (42) Word has length 319 [2024-09-12 19:46:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:17,810 INFO L225 Difference]: With dead ends: 654 [2024-09-12 19:46:17,810 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:46:17,811 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 666 SyntacticMatches, 12 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=869, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:46:17,811 INFO L434 NwaCegarLoop]: 164 mSDtfsCounter, 23 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:17,811 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1348 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:17,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:46:17,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:46:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 19:46:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:46:17,812 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 319 [2024-09-12 19:46:17,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:17,813 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:46:17,813 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.5) internal successors, (243), 17 states have internal predecessors, (243), 9 states have call successors, (44), 10 states have call predecessors, (44), 9 states have return successors, (42), 8 states have call predecessors, (42), 7 states have call successors, (42) [2024-09-12 19:46:17,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:17,813 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:46:17,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:46:17,815 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 53 remaining) [2024-09-12 19:46:17,815 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 53 remaining) [2024-09-12 19:46:17,815 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 53 remaining) [2024-09-12 19:46:17,816 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 53 remaining) [2024-09-12 19:46:17,817 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 53 remaining) [2024-09-12 19:46:17,817 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 53 remaining) [2024-09-12 19:46:17,817 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 53 remaining) [2024-09-12 19:46:17,817 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 53 remaining) [2024-09-12 19:46:17,817 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 53 remaining) [2024-09-12 19:46:17,817 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 53 remaining) [2024-09-12 19:46:17,817 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 53 remaining) [2024-09-12 19:46:17,817 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 53 remaining) [2024-09-12 19:46:17,817 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 53 remaining) [2024-09-12 19:46:17,817 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 53 remaining) [2024-09-12 19:46:17,818 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 53 remaining) [2024-09-12 19:46:17,818 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 53 remaining) [2024-09-12 19:46:17,818 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 53 remaining) [2024-09-12 19:46:17,818 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 53 remaining) [2024-09-12 19:46:17,818 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 53 remaining) [2024-09-12 19:46:17,818 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 53 remaining) [2024-09-12 19:46:17,818 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 53 remaining) [2024-09-12 19:46:17,818 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 53 remaining) [2024-09-12 19:46:17,818 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 53 remaining) [2024-09-12 19:46:17,818 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 53 remaining) [2024-09-12 19:46:17,819 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 53 remaining) [2024-09-12 19:46:17,819 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 53 remaining) [2024-09-12 19:46:17,819 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 53 remaining) [2024-09-12 19:46:17,819 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 53 remaining) [2024-09-12 19:46:17,819 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 53 remaining) [2024-09-12 19:46:17,820 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 53 remaining) [2024-09-12 19:46:17,820 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 53 remaining) [2024-09-12 19:46:17,820 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 53 remaining) [2024-09-12 19:46:17,820 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 53 remaining) [2024-09-12 19:46:17,820 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 53 remaining) [2024-09-12 19:46:17,820 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 53 remaining) [2024-09-12 19:46:17,821 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 53 remaining) [2024-09-12 19:46:17,821 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 53 remaining) [2024-09-12 19:46:17,821 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 53 remaining) [2024-09-12 19:46:17,821 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 53 remaining) [2024-09-12 19:46:17,821 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 53 remaining) [2024-09-12 19:46:17,821 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 53 remaining) [2024-09-12 19:46:17,821 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 53 remaining) [2024-09-12 19:46:17,834 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 19:46:18,022 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:46:18,025 INFO L408 BasicCegarLoop]: Path program histogram: [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 19:46:18,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:47:28,765 WARN L293 SmtUtils]: Spent 1.14m on a formula simplification. DAG size of input: 163 DAG size of output: 358 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-09-12 19:48:36,859 WARN L293 SmtUtils]: Spent 1.13m on a formula simplification. DAG size of input: 163 DAG size of output: 358 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-09-12 19:48:48,524 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:48:48,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:48:48 BoogieIcfgContainer [2024-09-12 19:48:48,545 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:48:48,545 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:48:48,545 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:48:48,545 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:48:48,546 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:45:48" (3/4) ... [2024-09-12 19:48:48,547 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:48:48,550 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:48:48,550 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:48:48,550 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:48:48,555 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-09-12 19:48:48,555 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 19:48:48,555 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:48:48,556 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:48:48,584 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((counter == 3) && (s == 16)) && (n <= 2147483647)) && (a == 3)) && (7 == t)) || (((((a == 0) && (t == 1)) && (s == 1)) && (counter == 0)) && (n <= 2147483647))) || (((((5 == t) && (n <= 2147483647)) && (a == 2)) && (s == 9)) && (counter == 2))) || (((((a == 1) && (n <= 2147483647)) && (s == 4)) && (counter == 1)) && (t == 3))) || (((((s == 25) && (counter == 4)) && (t == 9)) && (n <= 2147483647)) && (a == 4))) || ((((((counter == 5) && (((((__int128) a * 2) + ((__int128) a * a)) + 1) == s)) && (s <= 36)) && (5 <= t)) && (n <= 2147483647)) && (t == (((__int128) a * 2) + 1)))) && (\old(counter) == 0)) [2024-09-12 19:48:48,655 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:48:48,656 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:48:48,657 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:48:48,657 INFO L158 Benchmark]: Toolchain (without parser) took 180696.14ms. Allocated memory was 58.7MB in the beginning and 570.4MB in the end (delta: 511.7MB). Free memory was 31.0MB in the beginning and 536.3MB in the end (delta: -505.3MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2024-09-12 19:48:48,657 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 58.7MB. Free memory was 35.0MB in the beginning and 35.0MB in the end (delta: 72.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:48:48,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.08ms. Allocated memory was 58.7MB in the beginning and 88.1MB in the end (delta: 29.4MB). Free memory was 30.9MB in the beginning and 64.7MB in the end (delta: -33.9MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-09-12 19:48:48,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.59ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 63.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:48:48,658 INFO L158 Benchmark]: Boogie Preprocessor took 45.21ms. Allocated memory is still 88.1MB. Free memory was 63.6MB in the beginning and 62.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:48:48,658 INFO L158 Benchmark]: RCFGBuilder took 552.21ms. Allocated memory is still 88.1MB. Free memory was 61.9MB in the beginning and 41.7MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-09-12 19:48:48,659 INFO L158 Benchmark]: TraceAbstraction took 179697.85ms. Allocated memory was 88.1MB in the beginning and 570.4MB in the end (delta: 482.3MB). Free memory was 40.9MB in the beginning and 541.6MB in the end (delta: -500.7MB). Peak memory consumption was 320.4MB. Max. memory is 16.1GB. [2024-09-12 19:48:48,659 INFO L158 Benchmark]: Witness Printer took 111.73ms. Allocated memory is still 570.4MB. Free memory was 541.6MB in the beginning and 536.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 19:48:48,660 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 58.7MB. Free memory was 35.0MB in the beginning and 35.0MB in the end (delta: 72.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.08ms. Allocated memory was 58.7MB in the beginning and 88.1MB in the end (delta: 29.4MB). Free memory was 30.9MB in the beginning and 64.7MB in the end (delta: -33.9MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.59ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 63.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.21ms. Allocated memory is still 88.1MB. Free memory was 63.6MB in the beginning and 62.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.21ms. Allocated memory is still 88.1MB. Free memory was 61.9MB in the beginning and 41.7MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 179697.85ms. Allocated memory was 88.1MB in the beginning and 570.4MB in the end (delta: 482.3MB). Free memory was 40.9MB in the beginning and 541.6MB in the end (delta: -500.7MB). Peak memory consumption was 320.4MB. Max. memory is 16.1GB. * Witness Printer took 111.73ms. Allocated memory is still 570.4MB. Free memory was 541.6MB in the beginning and 536.3MB in the end (delta: 5.3MB). 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 128 locations, 53 error locations. Started 1 CEGAR loops. OverallTime: 29.1s, OverallIterations: 29, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4503 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4394 mSDsluCounter, 13464 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10707 mSDsCounter, 863 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8626 IncrementalHoareTripleChecker+Invalid, 9489 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 863 mSolverCounterUnsat, 2757 mSDtfsCounter, 8626 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5141 GetRequests, 4705 SyntacticMatches, 17 SemanticMatches, 419 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3272 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=654occurred in iteration=28, InterpolantAutomatonStates: 344, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 29 MinimizatonAttempts, 513 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 5277 NumberOfCodeBlocks, 5277 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 6770 ConstructedInterpolants, 0 QuantifiedInterpolants, 26584 SizeOfPredicates, 48 NumberOfNonLiveVariables, 4148 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 56 InterpolantComputations, 16 PerfectInterpolantSequences, 10866/15362 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 53 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((((counter == 3) && (s == 16)) && (n <= 2147483647)) && (a == 3)) && (7 == t)) || (((((a == 0) && (t == 1)) && (s == 1)) && (counter == 0)) && (n <= 2147483647))) || (((((5 == t) && (n <= 2147483647)) && (a == 2)) && (s == 9)) && (counter == 2))) || (((((a == 1) && (n <= 2147483647)) && (s == 4)) && (counter == 1)) && (t == 3))) || (((((s == 25) && (counter == 4)) && (t == 9)) && (n <= 2147483647)) && (a == 4))) || ((((((counter == 5) && (((((__int128) a * 2) + ((__int128) a * a)) + 1) == s)) && (s <= 36)) && (5 <= t)) && (n <= 2147483647)) && (t == (((__int128) a * 2) + 1)))) && (\old(counter) == 0)) - ProcedureContractResult [Line: 21]: Procedure Contract for main Derived contract for procedure main. Requires: (counter == 0) Ensures: (\old(counter) == 0) - ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:48:48,699 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE