./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/bresenham-ll.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/bresenham-ll.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 68505a1040934ea3cdccf61a3fb1a3debf8c6c64330c175637d96b2737c92d5f --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 18:24:48,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:24:48,193 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:24:48,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:24:48,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:24:48,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:24:48,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:24:48,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:24:48,218 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:24:48,221 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:24:48,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:24:48,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:24:48,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:24:48,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:24:48,222 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:24:48,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:24:48,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:24:48,222 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:24:48,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:24:48,223 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:24:48,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:24:48,224 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:24:48,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:24:48,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:24:48,225 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:24:48,225 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:24:48,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:24:48,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:24:48,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:24:48,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:24:48,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:24:48,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:24:48,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:24:48,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:24:48,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:24:48,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:24:48,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:24:48,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:24:48,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:24:48,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:24:48,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:24:48,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:24:48,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68505a1040934ea3cdccf61a3fb1a3debf8c6c64330c175637d96b2737c92d5f Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:24:48,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:24:48,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:24:48,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:24:48,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:24:48,510 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:24:48,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench/bresenham-ll.c [2024-09-12 18:24:49,760 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:24:49,966 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:24:49,968 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/bresenham-ll.c [2024-09-12 18:24:49,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/177d19912/28fd027ea8c74159a30961ffe3b12b74/FLAGe594c2784 [2024-09-12 18:24:50,336 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/177d19912/28fd027ea8c74159a30961ffe3b12b74 [2024-09-12 18:24:50,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:24:50,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:24:50,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:24:50,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:24:50,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:24:50,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@474b2538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50, skipping insertion in model container [2024-09-12 18:24:50,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,364 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:24:50,487 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/bresenham-ll.c[597,610] [2024-09-12 18:24:50,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:24:50,524 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:24:50,535 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/bresenham-ll.c[597,610] [2024-09-12 18:24:50,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:24:50,560 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:24:50,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50 WrapperNode [2024-09-12 18:24:50,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:24:50,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:24:50,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:24:50,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:24:50,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,586 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:24:50,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:24:50,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:24:50,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:24:50,587 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:24:50,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,597 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,636 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 18:24:50,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:24:50,657 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:24:50,657 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:24:50,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:24:50,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (1/1) ... [2024-09-12 18:24:50,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:24:50,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:50,723 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 18:24:50,726 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 18:24:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:24:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:24:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:24:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:24:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:24:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:24:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:24:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:24:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:24:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:24:50,822 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:24:50,824 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:24:51,158 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2024-09-12 18:24:51,158 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:24:51,184 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:24:51,184 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:24:51,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:24:51 BoogieIcfgContainer [2024-09-12 18:24:51,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:24:51,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:24:51,186 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:24:51,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:24:51,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:24:50" (1/3) ... [2024-09-12 18:24:51,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9f05e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:24:51, skipping insertion in model container [2024-09-12 18:24:51,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:24:50" (2/3) ... [2024-09-12 18:24:51,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9f05e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:24:51, skipping insertion in model container [2024-09-12 18:24:51,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:24:51" (3/3) ... [2024-09-12 18:24:51,192 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll.c [2024-09-12 18:24:51,205 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:24:51,205 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 59 error locations. [2024-09-12 18:24:51,264 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:24:51,269 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;@3beaadf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:24:51,269 INFO L337 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2024-09-12 18:24:51,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 70 states have (on average 1.9142857142857144) internal successors, (134), 129 states have internal predecessors, (134), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-09-12 18:24:51,278 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:51,278 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-09-12 18:24:51,279 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:51,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:51,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1362887691, now seen corresponding path program 1 times [2024-09-12 18:24:51,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:51,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709349096] [2024-09-12 18:24:51,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:51,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:51,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:51,468 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 18:24:51,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:51,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709349096] [2024-09-12 18:24:51,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709349096] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:51,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:51,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:24:51,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368815405] [2024-09-12 18:24:51,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:51,474 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:24:51,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:51,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:24:51,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:24:51,493 INFO L87 Difference]: Start difference. First operand has 137 states, 70 states have (on average 1.9142857142857144) internal successors, (134), 129 states have internal predecessors, (134), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (2), 1 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 18:24:51,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:51,675 INFO L93 Difference]: Finished difference Result 258 states and 273 transitions. [2024-09-12 18:24:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:24:51,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (2), 1 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 6 [2024-09-12 18:24:51,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:51,684 INFO L225 Difference]: With dead ends: 258 [2024-09-12 18:24:51,685 INFO L226 Difference]: Without dead ends: 129 [2024-09-12 18:24:51,688 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 18:24:51,690 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 91 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:51,691 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 85 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:51,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-09-12 18:24:51,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-09-12 18:24:51,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 68 states have (on average 1.838235294117647) internal successors, (125), 123 states have internal predecessors, (125), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:24:51,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 131 transitions. [2024-09-12 18:24:51,749 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 131 transitions. Word has length 6 [2024-09-12 18:24:51,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:51,752 INFO L474 AbstractCegarLoop]: Abstraction has 129 states and 131 transitions. [2024-09-12 18:24:51,752 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (2), 1 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 18:24:51,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 131 transitions. [2024-09-12 18:24:51,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 18:24:51,753 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:51,753 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:51,753 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:24:51,754 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:51,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:51,754 INFO L85 PathProgramCache]: Analyzing trace with hash -700154500, now seen corresponding path program 1 times [2024-09-12 18:24:51,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:51,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826165322] [2024-09-12 18:24:51,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:51,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:51,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:51,812 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 18:24:51,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:51,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826165322] [2024-09-12 18:24:51,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826165322] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:51,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:51,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:24:51,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825999383] [2024-09-12 18:24:51,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:51,817 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:24:51,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:51,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:24:51,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:24:51,820 INFO L87 Difference]: Start difference. First operand 129 states and 131 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 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 18:24:51,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:51,941 INFO L93 Difference]: Finished difference Result 129 states and 131 transitions. [2024-09-12 18:24:51,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:24:51,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 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 18:24:51,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:51,944 INFO L225 Difference]: With dead ends: 129 [2024-09-12 18:24:51,946 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 18:24:51,946 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 18:24:51,947 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 89 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:51,947 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 80 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 18:24:51,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-09-12 18:24:51,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 68 states have (on average 1.7794117647058822) internal successors, (121), 119 states have internal predecessors, (121), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:24:51,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2024-09-12 18:24:51,969 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 7 [2024-09-12 18:24:51,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:51,970 INFO L474 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2024-09-12 18:24:51,970 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 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 18:24:51,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:51,971 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2024-09-12 18:24:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:24:51,971 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:51,971 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:51,971 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:24:51,972 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:51,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:51,972 INFO L85 PathProgramCache]: Analyzing trace with hash -229952979, now seen corresponding path program 1 times [2024-09-12 18:24:51,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:51,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469628566] [2024-09-12 18:24:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:51,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:52,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:52,032 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 18:24:52,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:52,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469628566] [2024-09-12 18:24:52,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469628566] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:52,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:52,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:24:52,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024944813] [2024-09-12 18:24:52,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:52,034 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:24:52,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:52,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:24:52,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:24:52,035 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 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 18:24:52,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:52,255 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2024-09-12 18:24:52,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:24:52,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 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 8 [2024-09-12 18:24:52,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:52,257 INFO L225 Difference]: With dead ends: 125 [2024-09-12 18:24:52,257 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 18:24:52,257 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 18:24:52,258 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 82 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:52,258 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 66 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:52,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 18:24:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-09-12 18:24:52,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 68 states have (on average 1.7647058823529411) internal successors, (120), 118 states have internal predecessors, (120), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:24:52,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 126 transitions. [2024-09-12 18:24:52,277 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 126 transitions. Word has length 8 [2024-09-12 18:24:52,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:52,277 INFO L474 AbstractCegarLoop]: Abstraction has 124 states and 126 transitions. [2024-09-12 18:24:52,277 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 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 18:24:52,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:52,278 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 126 transitions. [2024-09-12 18:24:52,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 18:24:52,278 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:52,278 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:52,278 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:24:52,279 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:52,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:52,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1461392286, now seen corresponding path program 1 times [2024-09-12 18:24:52,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:52,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140910147] [2024-09-12 18:24:52,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:52,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:52,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:52,306 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 18:24:52,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:52,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140910147] [2024-09-12 18:24:52,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140910147] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:52,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:52,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:24:52,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131776775] [2024-09-12 18:24:52,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:52,308 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:24:52,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:52,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:24:52,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:24:52,309 INFO L87 Difference]: Start difference. First operand 124 states and 126 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 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 18:24:52,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:52,447 INFO L93 Difference]: Finished difference Result 124 states and 126 transitions. [2024-09-12 18:24:52,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:24:52,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 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 9 [2024-09-12 18:24:52,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:52,448 INFO L225 Difference]: With dead ends: 124 [2024-09-12 18:24:52,448 INFO L226 Difference]: Without dead ends: 123 [2024-09-12 18:24:52,449 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 18:24:52,449 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 81 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:52,450 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 66 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:52,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-09-12 18:24:52,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-09-12 18:24:52,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 68 states have (on average 1.75) internal successors, (119), 117 states have internal predecessors, (119), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:24:52,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 125 transitions. [2024-09-12 18:24:52,475 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 125 transitions. Word has length 9 [2024-09-12 18:24:52,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:52,475 INFO L474 AbstractCegarLoop]: Abstraction has 123 states and 125 transitions. [2024-09-12 18:24:52,476 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 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 18:24:52,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:52,476 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 125 transitions. [2024-09-12 18:24:52,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 18:24:52,476 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:52,477 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:52,477 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:24:52,477 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:52,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:52,477 INFO L85 PathProgramCache]: Analyzing trace with hash -56317280, now seen corresponding path program 1 times [2024-09-12 18:24:52,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:52,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537704442] [2024-09-12 18:24:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:52,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:52,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1880879919] [2024-09-12 18:24:52,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:52,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:52,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:52,488 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 18:24:52,490 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 18:24:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:52,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:24:52,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:52,543 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 18:24:52,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:52,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:52,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537704442] [2024-09-12 18:24:52,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:52,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880879919] [2024-09-12 18:24:52,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880879919] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:52,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:52,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:24:52,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959277061] [2024-09-12 18:24:52,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:52,546 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:24:52,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:52,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:24:52,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:24:52,547 INFO L87 Difference]: Start difference. First operand 123 states and 125 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 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 18:24:52,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:52,638 INFO L93 Difference]: Finished difference Result 192 states and 197 transitions. [2024-09-12 18:24:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:24:52,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 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 11 [2024-09-12 18:24:52,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:52,640 INFO L225 Difference]: With dead ends: 192 [2024-09-12 18:24:52,640 INFO L226 Difference]: Without dead ends: 186 [2024-09-12 18:24:52,640 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 18:24:52,641 INFO L434 NwaCegarLoop]: 115 mSDtfsCounter, 61 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:52,641 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 221 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-09-12 18:24:52,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 148. [2024-09-12 18:24:52,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 92 states have (on average 1.7173913043478262) internal successors, (158), 141 states have internal predecessors, (158), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:24:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2024-09-12 18:24:52,671 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 11 [2024-09-12 18:24:52,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:52,671 INFO L474 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2024-09-12 18:24:52,671 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 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 18:24:52,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:52,672 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2024-09-12 18:24:52,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:24:52,672 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:52,672 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:52,685 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 18:24:52,876 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 18:24:52,877 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:52,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:52,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1713670562, now seen corresponding path program 1 times [2024-09-12 18:24:52,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:52,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885710962] [2024-09-12 18:24:52,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:52,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:52,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99100990] [2024-09-12 18:24:52,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:52,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:52,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:52,892 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 18:24:52,894 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 18:24:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:52,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:24:52,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:52,931 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 18:24:52,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:52,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:52,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885710962] [2024-09-12 18:24:52,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:52,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99100990] [2024-09-12 18:24:52,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99100990] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:52,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:52,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:24:52,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411912759] [2024-09-12 18:24:52,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:52,933 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:24:52,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:52,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:24:52,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:24:52,934 INFO L87 Difference]: Start difference. First operand 148 states and 166 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 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 18:24:53,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:53,043 INFO L93 Difference]: Finished difference Result 250 states and 273 transitions. [2024-09-12 18:24:53,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:24:53,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 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 13 [2024-09-12 18:24:53,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:53,045 INFO L225 Difference]: With dead ends: 250 [2024-09-12 18:24:53,045 INFO L226 Difference]: Without dead ends: 244 [2024-09-12 18:24:53,045 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 18:24:53,046 INFO L434 NwaCegarLoop]: 115 mSDtfsCounter, 92 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:53,046 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 219 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:53,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-09-12 18:24:53,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 197. [2024-09-12 18:24:53,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 140 states have (on average 1.7) internal successors, (238), 189 states have internal predecessors, (238), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:53,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 248 transitions. [2024-09-12 18:24:53,088 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 248 transitions. Word has length 13 [2024-09-12 18:24:53,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:53,089 INFO L474 AbstractCegarLoop]: Abstraction has 197 states and 248 transitions. [2024-09-12 18:24:53,089 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 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 18:24:53,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:53,090 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 248 transitions. [2024-09-12 18:24:53,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 18:24:53,090 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:53,090 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:53,104 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 18:24:53,291 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:24:53,291 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:53,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:53,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1864937636, now seen corresponding path program 1 times [2024-09-12 18:24:53,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:53,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919412471] [2024-09-12 18:24:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:53,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:53,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260680322] [2024-09-12 18:24:53,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:53,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:53,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:53,311 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 18:24:53,312 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 18:24:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:53,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:24:53,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:53,366 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 18:24:53,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:53,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:53,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919412471] [2024-09-12 18:24:53,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:53,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260680322] [2024-09-12 18:24:53,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260680322] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:53,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:53,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:24:53,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217813689] [2024-09-12 18:24:53,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:53,368 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:24:53,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:53,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:24:53,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:24:53,368 INFO L87 Difference]: Start difference. First operand 197 states and 248 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 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 18:24:53,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:53,546 INFO L93 Difference]: Finished difference Result 270 states and 325 transitions. [2024-09-12 18:24:53,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:24:53,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 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 15 [2024-09-12 18:24:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:53,548 INFO L225 Difference]: With dead ends: 270 [2024-09-12 18:24:53,548 INFO L226 Difference]: Without dead ends: 268 [2024-09-12 18:24:53,548 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 18:24:53,549 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 131 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:53,549 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 235 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:53,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-09-12 18:24:53,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 198. [2024-09-12 18:24:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 141 states have (on average 1.6879432624113475) internal successors, (238), 190 states have internal predecessors, (238), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:53,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 248 transitions. [2024-09-12 18:24:53,585 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 248 transitions. Word has length 15 [2024-09-12 18:24:53,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:53,585 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 248 transitions. [2024-09-12 18:24:53,585 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 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 18:24:53,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 248 transitions. [2024-09-12 18:24:53,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:24:53,586 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:53,586 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:53,599 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 18:24:53,787 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 18:24:53,788 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:53,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:53,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1978491932, now seen corresponding path program 1 times [2024-09-12 18:24:53,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:53,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675544341] [2024-09-12 18:24:53,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:53,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:53,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227170471] [2024-09-12 18:24:53,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:53,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:53,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:53,805 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 18:24:53,805 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 18:24:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:53,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:24:53,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:53,860 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 18:24:53,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:53,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:53,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675544341] [2024-09-12 18:24:53,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:53,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227170471] [2024-09-12 18:24:53,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227170471] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:53,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:53,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:24:53,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197173188] [2024-09-12 18:24:53,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:53,861 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:24:53,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:53,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:24:53,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:24:53,862 INFO L87 Difference]: Start difference. First operand 198 states and 248 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 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 18:24:54,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:54,049 INFO L93 Difference]: Finished difference Result 269 states and 323 transitions. [2024-09-12 18:24:54,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:24:54,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 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 16 [2024-09-12 18:24:54,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:54,051 INFO L225 Difference]: With dead ends: 269 [2024-09-12 18:24:54,051 INFO L226 Difference]: Without dead ends: 267 [2024-09-12 18:24:54,051 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 18:24:54,052 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 129 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:54,052 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 238 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:54,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-09-12 18:24:54,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 199. [2024-09-12 18:24:54,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 142 states have (on average 1.676056338028169) internal successors, (238), 191 states have internal predecessors, (238), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 248 transitions. [2024-09-12 18:24:54,081 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 248 transitions. Word has length 16 [2024-09-12 18:24:54,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:54,081 INFO L474 AbstractCegarLoop]: Abstraction has 199 states and 248 transitions. [2024-09-12 18:24:54,081 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 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 18:24:54,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:54,081 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 248 transitions. [2024-09-12 18:24:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:24:54,082 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:54,082 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 18:24:54,099 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 18:24:54,282 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:54,282 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:54,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:54,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1203707814, now seen corresponding path program 1 times [2024-09-12 18:24:54,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:54,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920187043] [2024-09-12 18:24:54,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:54,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:54,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1604482626] [2024-09-12 18:24:54,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:54,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:54,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:54,292 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 18:24:54,294 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 18:24:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:54,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:24:54,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:54,344 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 18:24:54,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:54,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:54,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920187043] [2024-09-12 18:24:54,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:54,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604482626] [2024-09-12 18:24:54,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604482626] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:54,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:54,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:24:54,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957360395] [2024-09-12 18:24:54,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:54,345 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:24:54,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:54,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:24:54,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:24:54,346 INFO L87 Difference]: Start difference. First operand 199 states and 248 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 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 18:24:54,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:54,494 INFO L93 Difference]: Finished difference Result 264 states and 283 transitions. [2024-09-12 18:24:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:24:54,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 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 17 [2024-09-12 18:24:54,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:54,496 INFO L225 Difference]: With dead ends: 264 [2024-09-12 18:24:54,496 INFO L226 Difference]: Without dead ends: 262 [2024-09-12 18:24:54,496 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 18:24:54,496 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 178 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:54,497 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 258 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:54,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-09-12 18:24:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 199. [2024-09-12 18:24:54,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 142 states have (on average 1.6549295774647887) internal successors, (235), 191 states have internal predecessors, (235), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2024-09-12 18:24:54,525 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 17 [2024-09-12 18:24:54,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:54,525 INFO L474 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2024-09-12 18:24:54,526 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 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 18:24:54,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2024-09-12 18:24:54,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 18:24:54,526 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:54,526 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:54,540 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 18:24:54,727 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:54,728 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:54,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:54,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1339763362, now seen corresponding path program 1 times [2024-09-12 18:24:54,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:54,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156500987] [2024-09-12 18:24:54,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:54,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:54,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075303068] [2024-09-12 18:24:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:54,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:54,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:54,737 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 18:24:54,737 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 18:24:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:54,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:24:54,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:54,779 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 18:24:54,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:54,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:54,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156500987] [2024-09-12 18:24:54,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:54,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075303068] [2024-09-12 18:24:54,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075303068] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:54,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:54,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:24:54,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763108497] [2024-09-12 18:24:54,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:54,781 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:24:54,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:54,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:24:54,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:24:54,781 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 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 18:24:54,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:54,949 INFO L93 Difference]: Finished difference Result 262 states and 280 transitions. [2024-09-12 18:24:54,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:24:54,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 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 18 [2024-09-12 18:24:54,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:54,951 INFO L225 Difference]: With dead ends: 262 [2024-09-12 18:24:54,951 INFO L226 Difference]: Without dead ends: 260 [2024-09-12 18:24:54,951 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 18:24:54,951 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 175 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:54,952 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 264 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:54,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-09-12 18:24:54,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 199. [2024-09-12 18:24:54,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 142 states have (on average 1.6338028169014085) internal successors, (232), 191 states have internal predecessors, (232), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 242 transitions. [2024-09-12 18:24:54,976 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 242 transitions. Word has length 18 [2024-09-12 18:24:54,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:54,976 INFO L474 AbstractCegarLoop]: Abstraction has 199 states and 242 transitions. [2024-09-12 18:24:54,976 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 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 18:24:54,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:54,977 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 242 transitions. [2024-09-12 18:24:54,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 18:24:54,977 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:54,977 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:54,993 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 18:24:55,178 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:24:55,178 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:55,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:55,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1417008808, now seen corresponding path program 1 times [2024-09-12 18:24:55,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:55,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827593352] [2024-09-12 18:24:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:55,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:55,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497615486] [2024-09-12 18:24:55,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:55,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:55,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:55,187 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 18:24:55,188 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 18:24:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:55,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:24:55,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:55,249 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 18:24:55,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:55,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:55,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827593352] [2024-09-12 18:24:55,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:55,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497615486] [2024-09-12 18:24:55,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497615486] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:55,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:55,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:24:55,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061970046] [2024-09-12 18:24:55,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:55,252 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:24:55,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:55,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:24:55,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:24:55,252 INFO L87 Difference]: Start difference. First operand 199 states and 242 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (2), 1 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 18:24:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:55,485 INFO L93 Difference]: Finished difference Result 264 states and 313 transitions. [2024-09-12 18:24:55,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:24:55,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (2), 1 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 19 [2024-09-12 18:24:55,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:55,487 INFO L225 Difference]: With dead ends: 264 [2024-09-12 18:24:55,487 INFO L226 Difference]: Without dead ends: 262 [2024-09-12 18:24:55,487 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:24:55,488 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 184 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:55,488 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 238 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-09-12 18:24:55,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 202. [2024-09-12 18:24:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 145 states have (on average 1.6137931034482758) internal successors, (234), 194 states have internal predecessors, (234), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:55,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 244 transitions. [2024-09-12 18:24:55,515 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 244 transitions. Word has length 19 [2024-09-12 18:24:55,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:55,515 INFO L474 AbstractCegarLoop]: Abstraction has 202 states and 244 transitions. [2024-09-12 18:24:55,515 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (2), 1 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 18:24:55,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:55,516 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 244 transitions. [2024-09-12 18:24:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 18:24:55,516 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:55,516 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:55,532 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 18:24:55,720 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:55,721 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:55,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:55,721 INFO L85 PathProgramCache]: Analyzing trace with hash 977600160, now seen corresponding path program 1 times [2024-09-12 18:24:55,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:55,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039523768] [2024-09-12 18:24:55,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:55,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:55,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437560074] [2024-09-12 18:24:55,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:55,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:55,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:55,732 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 18:24:55,733 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 18:24:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:55,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:24:55,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:55,805 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 18:24:55,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:55,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:55,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039523768] [2024-09-12 18:24:55,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:55,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437560074] [2024-09-12 18:24:55,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437560074] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:55,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:55,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:24:55,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419903807] [2024-09-12 18:24:55,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:55,806 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:24:55,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:55,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:24:55,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:24:55,807 INFO L87 Difference]: Start difference. First operand 202 states and 244 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 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 18:24:55,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:55,965 INFO L93 Difference]: Finished difference Result 263 states and 279 transitions. [2024-09-12 18:24:55,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:24:55,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 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 20 [2024-09-12 18:24:55,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:55,966 INFO L225 Difference]: With dead ends: 263 [2024-09-12 18:24:55,966 INFO L226 Difference]: Without dead ends: 261 [2024-09-12 18:24:55,967 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:24:55,967 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 170 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:55,967 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 328 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:24:55,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-09-12 18:24:56,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 202. [2024-09-12 18:24:56,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 145 states have (on average 1.5931034482758621) internal successors, (231), 194 states have internal predecessors, (231), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:56,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 241 transitions. [2024-09-12 18:24:56,009 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 241 transitions. Word has length 20 [2024-09-12 18:24:56,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:56,009 INFO L474 AbstractCegarLoop]: Abstraction has 202 states and 241 transitions. [2024-09-12 18:24:56,009 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 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 18:24:56,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 241 transitions. [2024-09-12 18:24:56,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 18:24:56,010 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:56,010 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:56,022 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 18:24:56,210 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:56,211 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:56,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:56,211 INFO L85 PathProgramCache]: Analyzing trace with hash 240833962, now seen corresponding path program 1 times [2024-09-12 18:24:56,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:56,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314887699] [2024-09-12 18:24:56,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:56,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:56,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873548481] [2024-09-12 18:24:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:56,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:56,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:56,223 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 18:24:56,225 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 18:24:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:56,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:24:56,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:56,339 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 18:24:56,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:56,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:56,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314887699] [2024-09-12 18:24:56,340 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:56,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873548481] [2024-09-12 18:24:56,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873548481] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:56,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:56,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:24:56,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392532938] [2024-09-12 18:24:56,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:56,340 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:24:56,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:56,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:24:56,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:24:56,341 INFO L87 Difference]: Start difference. First operand 202 states and 241 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 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 18:24:56,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:56,651 INFO L93 Difference]: Finished difference Result 255 states and 307 transitions. [2024-09-12 18:24:56,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:24:56,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 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 21 [2024-09-12 18:24:56,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:56,653 INFO L225 Difference]: With dead ends: 255 [2024-09-12 18:24:56,653 INFO L226 Difference]: Without dead ends: 253 [2024-09-12 18:24:56,653 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:24:56,653 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 263 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:56,653 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 191 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-09-12 18:24:56,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 204. [2024-09-12 18:24:56,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 147 states have (on average 1.5782312925170068) internal successors, (232), 196 states have internal predecessors, (232), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 242 transitions. [2024-09-12 18:24:56,677 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 242 transitions. Word has length 21 [2024-09-12 18:24:56,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:56,677 INFO L474 AbstractCegarLoop]: Abstraction has 204 states and 242 transitions. [2024-09-12 18:24:56,677 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 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 18:24:56,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:56,678 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 242 transitions. [2024-09-12 18:24:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:24:56,678 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:56,678 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:56,695 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 18:24:56,878 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:24:56,879 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:56,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:56,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1124081694, now seen corresponding path program 1 times [2024-09-12 18:24:56,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:56,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293327625] [2024-09-12 18:24:56,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:56,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:56,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344100964] [2024-09-12 18:24:56,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:56,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:56,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:56,891 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 18:24:56,893 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 18:24:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:56,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:24:56,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:56,991 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 18:24:56,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:56,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:56,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293327625] [2024-09-12 18:24:56,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:56,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344100964] [2024-09-12 18:24:56,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344100964] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:56,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:56,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:24:56,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370550624] [2024-09-12 18:24:56,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:56,992 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:24:56,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:56,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:24:56,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:24:56,992 INFO L87 Difference]: Start difference. First operand 204 states and 242 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 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 18:24:57,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:57,396 INFO L93 Difference]: Finished difference Result 255 states and 305 transitions. [2024-09-12 18:24:57,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:24:57,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 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 22 [2024-09-12 18:24:57,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:57,398 INFO L225 Difference]: With dead ends: 255 [2024-09-12 18:24:57,398 INFO L226 Difference]: Without dead ends: 253 [2024-09-12 18:24:57,398 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:24:57,398 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 262 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:57,399 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 201 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:24:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-09-12 18:24:57,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 205. [2024-09-12 18:24:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 148 states have (on average 1.5675675675675675) internal successors, (232), 197 states have internal predecessors, (232), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 242 transitions. [2024-09-12 18:24:57,424 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 242 transitions. Word has length 22 [2024-09-12 18:24:57,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:57,424 INFO L474 AbstractCegarLoop]: Abstraction has 205 states and 242 transitions. [2024-09-12 18:24:57,424 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 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 18:24:57,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:57,425 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 242 transitions. [2024-09-12 18:24:57,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 18:24:57,425 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:57,425 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:57,440 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 18:24:57,625 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:24:57,626 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:57,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:57,626 INFO L85 PathProgramCache]: Analyzing trace with hash 342338478, now seen corresponding path program 1 times [2024-09-12 18:24:57,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:57,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987523050] [2024-09-12 18:24:57,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:57,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:57,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580497798] [2024-09-12 18:24:57,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:57,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:57,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:57,638 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 18:24:57,639 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 18:24:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:57,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:24:57,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:57,807 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 18:24:57,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:57,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:57,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987523050] [2024-09-12 18:24:57,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:57,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580497798] [2024-09-12 18:24:57,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580497798] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:57,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:57,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:24:57,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718371924] [2024-09-12 18:24:57,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:57,808 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:24:57,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:57,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:24:57,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:24:57,809 INFO L87 Difference]: Start difference. First operand 205 states and 242 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (2), 1 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 18:24:58,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:58,180 INFO L93 Difference]: Finished difference Result 249 states and 303 transitions. [2024-09-12 18:24:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:24:58,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (2), 1 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 25 [2024-09-12 18:24:58,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:58,182 INFO L225 Difference]: With dead ends: 249 [2024-09-12 18:24:58,182 INFO L226 Difference]: Without dead ends: 245 [2024-09-12 18:24:58,182 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:24:58,183 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 239 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:58,183 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 136 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:24:58,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-09-12 18:24:58,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 206. [2024-09-12 18:24:58,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 151 states have (on average 1.5364238410596027) internal successors, (232), 198 states have internal predecessors, (232), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 242 transitions. [2024-09-12 18:24:58,220 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 242 transitions. Word has length 25 [2024-09-12 18:24:58,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:58,220 INFO L474 AbstractCegarLoop]: Abstraction has 206 states and 242 transitions. [2024-09-12 18:24:58,220 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (2), 1 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 18:24:58,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:58,221 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 242 transitions. [2024-09-12 18:24:58,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 18:24:58,222 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:58,222 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:58,241 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:24:58,422 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:24:58,423 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:58,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2022558310, now seen corresponding path program 1 times [2024-09-12 18:24:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:58,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942911046] [2024-09-12 18:24:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:58,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:58,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [793683589] [2024-09-12 18:24:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:58,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:58,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:58,431 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 18:24:58,432 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 18:24:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:58,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:24:58,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:58,584 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 18:24:58,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:58,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:58,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942911046] [2024-09-12 18:24:58,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:58,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793683589] [2024-09-12 18:24:58,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793683589] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:58,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:58,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:24:58,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24065552] [2024-09-12 18:24:58,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:58,586 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:24:58,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:58,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:24:58,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:24:58,586 INFO L87 Difference]: Start difference. First operand 206 states and 242 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (2), 1 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 18:24:58,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:58,851 INFO L93 Difference]: Finished difference Result 247 states and 297 transitions. [2024-09-12 18:24:58,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:24:58,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (2), 1 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 26 [2024-09-12 18:24:58,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:58,852 INFO L225 Difference]: With dead ends: 247 [2024-09-12 18:24:58,852 INFO L226 Difference]: Without dead ends: 243 [2024-09-12 18:24:58,853 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:24:58,853 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 283 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:58,853 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 116 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:58,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-09-12 18:24:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2024-09-12 18:24:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 152 states have (on average 1.513157894736842) internal successors, (230), 197 states have internal predecessors, (230), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 240 transitions. [2024-09-12 18:24:58,879 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 240 transitions. Word has length 26 [2024-09-12 18:24:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:58,879 INFO L474 AbstractCegarLoop]: Abstraction has 205 states and 240 transitions. [2024-09-12 18:24:58,880 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (2), 1 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 18:24:58,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 240 transitions. [2024-09-12 18:24:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 18:24:58,880 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:58,880 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:58,893 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 18:24:59,081 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:24:59,081 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:59,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:59,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1725201744, now seen corresponding path program 1 times [2024-09-12 18:24:59,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:59,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556705451] [2024-09-12 18:24:59,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:59,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:59,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:59,137 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 18:24:59,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:59,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556705451] [2024-09-12 18:24:59,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556705451] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:59,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:59,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:24:59,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398408921] [2024-09-12 18:24:59,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:59,138 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:24:59,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:59,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:24:59,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:24:59,138 INFO L87 Difference]: Start difference. First operand 205 states and 240 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 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 18:24:59,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:59,369 INFO L93 Difference]: Finished difference Result 225 states and 267 transitions. [2024-09-12 18:24:59,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:24:59,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 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 27 [2024-09-12 18:24:59,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:59,370 INFO L225 Difference]: With dead ends: 225 [2024-09-12 18:24:59,371 INFO L226 Difference]: Without dead ends: 223 [2024-09-12 18:24:59,371 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:24:59,371 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 95 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:59,371 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 144 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:59,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-09-12 18:24:59,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 206. [2024-09-12 18:24:59,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 153 states have (on average 1.5032679738562091) internal successors, (230), 198 states have internal predecessors, (230), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:59,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 240 transitions. [2024-09-12 18:24:59,403 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 240 transitions. Word has length 27 [2024-09-12 18:24:59,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:59,403 INFO L474 AbstractCegarLoop]: Abstraction has 206 states and 240 transitions. [2024-09-12 18:24:59,404 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 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 18:24:59,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:59,404 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 240 transitions. [2024-09-12 18:24:59,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 18:24:59,404 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:59,404 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:59,404 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:24:59,404 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:59,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:59,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1941646424, now seen corresponding path program 1 times [2024-09-12 18:24:59,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:59,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816954808] [2024-09-12 18:24:59,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:59,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:59,469 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 18:24:59,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:59,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816954808] [2024-09-12 18:24:59,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816954808] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:59,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:59,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:24:59,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426234855] [2024-09-12 18:24:59,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:59,469 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:24:59,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:59,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:24:59,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:24:59,470 INFO L87 Difference]: Start difference. First operand 206 states and 240 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 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 18:24:59,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:59,739 INFO L93 Difference]: Finished difference Result 225 states and 265 transitions. [2024-09-12 18:24:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:24:59,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 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 28 [2024-09-12 18:24:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:59,740 INFO L225 Difference]: With dead ends: 225 [2024-09-12 18:24:59,740 INFO L226 Difference]: Without dead ends: 223 [2024-09-12 18:24:59,740 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:24:59,741 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 69 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:59,741 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 157 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:24:59,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-09-12 18:24:59,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 207. [2024-09-12 18:24:59,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 154 states have (on average 1.4935064935064934) internal successors, (230), 199 states have internal predecessors, (230), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:24:59,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 240 transitions. [2024-09-12 18:24:59,775 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 240 transitions. Word has length 28 [2024-09-12 18:24:59,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:59,775 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 240 transitions. [2024-09-12 18:24:59,775 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 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 18:24:59,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:59,775 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 240 transitions. [2024-09-12 18:24:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 18:24:59,776 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:24:59,776 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:59,776 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 18:24:59,776 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:24:59,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1899896476, now seen corresponding path program 1 times [2024-09-12 18:24:59,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:24:59,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180535426] [2024-09-12 18:24:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:59,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:24:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:24:59,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496604144] [2024-09-12 18:24:59,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:24:59,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:24:59,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:24:59,792 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 18:24:59,793 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 18:24:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:59,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:24:59,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:24:59,953 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 18:24:59,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:24:59,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:59,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180535426] [2024-09-12 18:24:59,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:24:59,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496604144] [2024-09-12 18:24:59,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496604144] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:59,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:59,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:24:59,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318498257] [2024-09-12 18:24:59,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:59,954 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:24:59,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:59,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:24:59,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:24:59,955 INFO L87 Difference]: Start difference. First operand 207 states and 240 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 2 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 18:25:00,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:00,378 INFO L93 Difference]: Finished difference Result 231 states and 268 transitions. [2024-09-12 18:25:00,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:25:00,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 2 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 32 [2024-09-12 18:25:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:00,380 INFO L225 Difference]: With dead ends: 231 [2024-09-12 18:25:00,380 INFO L226 Difference]: Without dead ends: 204 [2024-09-12 18:25:00,380 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:25:00,380 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 115 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:00,381 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 261 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:25:00,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-09-12 18:25:00,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 193. [2024-09-12 18:25:00,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 139 states have (on average 1.539568345323741) internal successors, (214), 184 states have internal predecessors, (214), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:25:00,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 224 transitions. [2024-09-12 18:25:00,416 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 224 transitions. Word has length 32 [2024-09-12 18:25:00,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:00,417 INFO L474 AbstractCegarLoop]: Abstraction has 193 states and 224 transitions. [2024-09-12 18:25:00,417 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 2 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 18:25:00,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:00,418 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 224 transitions. [2024-09-12 18:25:00,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:25:00,418 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:00,418 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:00,431 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:00,619 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:00,619 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:00,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:00,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1892325977, now seen corresponding path program 1 times [2024-09-12 18:25:00,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:00,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733061036] [2024-09-12 18:25:00,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:00,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:00,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:00,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:25:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:00,706 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 18:25:00,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:00,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733061036] [2024-09-12 18:25:00,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733061036] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:00,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:00,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:00,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171267151] [2024-09-12 18:25:00,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:00,710 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:00,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:00,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:00,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:00,711 INFO L87 Difference]: Start difference. First operand 193 states and 224 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:00,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:00,958 INFO L93 Difference]: Finished difference Result 205 states and 240 transitions. [2024-09-12 18:25:00,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:25:00,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2024-09-12 18:25:00,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:00,962 INFO L225 Difference]: With dead ends: 205 [2024-09-12 18:25:00,962 INFO L226 Difference]: Without dead ends: 204 [2024-09-12 18:25:00,962 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 18:25:00,962 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 120 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:00,962 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 116 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:00,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-09-12 18:25:00,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 197. [2024-09-12 18:25:00,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 143 states have (on average 1.5314685314685315) internal successors, (219), 188 states have internal predecessors, (219), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:25:00,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 229 transitions. [2024-09-12 18:25:00,998 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 229 transitions. Word has length 38 [2024-09-12 18:25:00,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:00,998 INFO L474 AbstractCegarLoop]: Abstraction has 197 states and 229 transitions. [2024-09-12 18:25:00,998 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:00,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:00,998 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 229 transitions. [2024-09-12 18:25:00,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:25:00,999 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:00,999 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:00,999 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 18:25:00,999 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:00,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:01,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1467436752, now seen corresponding path program 1 times [2024-09-12 18:25:01,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:01,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175444204] [2024-09-12 18:25:01,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:01,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:25:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,065 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 18:25:01,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:01,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175444204] [2024-09-12 18:25:01,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175444204] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:01,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:01,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:01,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067315970] [2024-09-12 18:25:01,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:01,066 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:01,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:01,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:01,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:01,067 INFO L87 Difference]: Start difference. First operand 197 states and 229 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:01,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:01,176 INFO L93 Difference]: Finished difference Result 197 states and 229 transitions. [2024-09-12 18:25:01,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:25:01,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2024-09-12 18:25:01,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:01,178 INFO L225 Difference]: With dead ends: 197 [2024-09-12 18:25:01,178 INFO L226 Difference]: Without dead ends: 196 [2024-09-12 18:25:01,178 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 18:25:01,178 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 66 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:01,178 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 146 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:25:01,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-09-12 18:25:01,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-09-12 18:25:01,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 143 states have (on average 1.5174825174825175) internal successors, (217), 187 states have internal predecessors, (217), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:25:01,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 227 transitions. [2024-09-12 18:25:01,220 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 227 transitions. Word has length 39 [2024-09-12 18:25:01,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:01,220 INFO L474 AbstractCegarLoop]: Abstraction has 196 states and 227 transitions. [2024-09-12 18:25:01,220 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:01,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:01,220 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 227 transitions. [2024-09-12 18:25:01,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:25:01,221 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:01,221 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:01,221 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 18:25:01,221 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:01,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:01,221 INFO L85 PathProgramCache]: Analyzing trace with hash 2049935611, now seen corresponding path program 1 times [2024-09-12 18:25:01,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:01,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667655411] [2024-09-12 18:25:01,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:01,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:25:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,270 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 18:25:01,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:01,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667655411] [2024-09-12 18:25:01,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667655411] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:01,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:01,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:01,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599040290] [2024-09-12 18:25:01,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:01,270 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:01,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:01,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:01,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:01,271 INFO L87 Difference]: Start difference. First operand 196 states and 227 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:01,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:01,490 INFO L93 Difference]: Finished difference Result 196 states and 227 transitions. [2024-09-12 18:25:01,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:25:01,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-09-12 18:25:01,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:01,493 INFO L225 Difference]: With dead ends: 196 [2024-09-12 18:25:01,493 INFO L226 Difference]: Without dead ends: 195 [2024-09-12 18:25:01,494 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 18:25:01,494 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 61 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:01,494 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 118 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:01,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-09-12 18:25:01,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-09-12 18:25:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 143 states have (on average 1.5104895104895104) internal successors, (216), 186 states have internal predecessors, (216), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:25:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 226 transitions. [2024-09-12 18:25:01,540 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 226 transitions. Word has length 40 [2024-09-12 18:25:01,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:01,540 INFO L474 AbstractCegarLoop]: Abstraction has 195 states and 226 transitions. [2024-09-12 18:25:01,540 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:01,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:01,540 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 226 transitions. [2024-09-12 18:25:01,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 18:25:01,541 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:01,541 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:01,541 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-09-12 18:25:01,541 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:01,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:01,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1457441582, now seen corresponding path program 1 times [2024-09-12 18:25:01,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:01,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500575762] [2024-09-12 18:25:01,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:01,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:25:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,588 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 18:25:01,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:01,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500575762] [2024-09-12 18:25:01,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500575762] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:01,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:01,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:01,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337191457] [2024-09-12 18:25:01,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:01,589 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:01,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:01,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:01,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:01,590 INFO L87 Difference]: Start difference. First operand 195 states and 226 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:01,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:01,760 INFO L93 Difference]: Finished difference Result 215 states and 248 transitions. [2024-09-12 18:25:01,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:25:01,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-09-12 18:25:01,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:01,762 INFO L225 Difference]: With dead ends: 215 [2024-09-12 18:25:01,762 INFO L226 Difference]: Without dead ends: 213 [2024-09-12 18:25:01,762 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:01,762 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 13 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:01,762 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 321 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:25:01,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-09-12 18:25:01,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 210. [2024-09-12 18:25:01,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 158 states have (on average 1.481012658227848) internal successors, (234), 201 states have internal predecessors, (234), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:25:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 244 transitions. [2024-09-12 18:25:01,806 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 244 transitions. Word has length 41 [2024-09-12 18:25:01,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:01,806 INFO L474 AbstractCegarLoop]: Abstraction has 210 states and 244 transitions. [2024-09-12 18:25:01,806 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:01,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 244 transitions. [2024-09-12 18:25:01,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 18:25:01,807 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:01,807 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:01,807 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-09-12 18:25:01,807 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:01,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:01,807 INFO L85 PathProgramCache]: Analyzing trace with hash -876505380, now seen corresponding path program 1 times [2024-09-12 18:25:01,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:01,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477215793] [2024-09-12 18:25:01,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:01,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:25:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:01,867 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 18:25:01,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:01,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477215793] [2024-09-12 18:25:01,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477215793] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:01,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:01,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:25:01,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381801764] [2024-09-12 18:25:01,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:01,868 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:25:01,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:01,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:25:01,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:25:01,869 INFO L87 Difference]: Start difference. First operand 210 states and 244 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:02,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:02,095 INFO L93 Difference]: Finished difference Result 211 states and 244 transitions. [2024-09-12 18:25:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:25:02,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-09-12 18:25:02,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:02,097 INFO L225 Difference]: With dead ends: 211 [2024-09-12 18:25:02,097 INFO L226 Difference]: Without dead ends: 210 [2024-09-12 18:25:02,097 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 18:25:02,098 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 134 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:02,098 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 171 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:02,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-09-12 18:25:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-09-12 18:25:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 158 states have (on average 1.4746835443037976) internal successors, (233), 201 states have internal predecessors, (233), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:25:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 243 transitions. [2024-09-12 18:25:02,147 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 243 transitions. Word has length 41 [2024-09-12 18:25:02,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:02,147 INFO L474 AbstractCegarLoop]: Abstraction has 210 states and 243 transitions. [2024-09-12 18:25:02,147 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:02,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 243 transitions. [2024-09-12 18:25:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:25:02,147 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:02,147 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:02,148 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-09-12 18:25:02,148 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:02,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1401862883, now seen corresponding path program 1 times [2024-09-12 18:25:02,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:02,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379514866] [2024-09-12 18:25:02,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:02,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:02,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:02,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:25:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:02,186 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 18:25:02,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:02,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379514866] [2024-09-12 18:25:02,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379514866] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:02,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:02,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:02,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507144161] [2024-09-12 18:25:02,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:02,187 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:02,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:02,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:02,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:02,189 INFO L87 Difference]: Start difference. First operand 210 states and 243 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:02,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:02,321 INFO L93 Difference]: Finished difference Result 249 states and 259 transitions. [2024-09-12 18:25:02,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:25:02,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-09-12 18:25:02,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:02,323 INFO L225 Difference]: With dead ends: 249 [2024-09-12 18:25:02,323 INFO L226 Difference]: Without dead ends: 247 [2024-09-12 18:25:02,323 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:02,324 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 58 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:02,324 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 305 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:25:02,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-09-12 18:25:02,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 218. [2024-09-12 18:25:02,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 166 states have (on average 1.4457831325301205) internal successors, (240), 209 states have internal predecessors, (240), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:25:02,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 250 transitions. [2024-09-12 18:25:02,372 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 250 transitions. Word has length 42 [2024-09-12 18:25:02,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:02,372 INFO L474 AbstractCegarLoop]: Abstraction has 218 states and 250 transitions. [2024-09-12 18:25:02,372 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:02,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:02,372 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 250 transitions. [2024-09-12 18:25:02,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 18:25:02,372 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:02,373 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:02,373 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-09-12 18:25:02,373 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:02,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:02,373 INFO L85 PathProgramCache]: Analyzing trace with hash -817648463, now seen corresponding path program 1 times [2024-09-12 18:25:02,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:02,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253747134] [2024-09-12 18:25:02,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:02,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:02,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1522124781] [2024-09-12 18:25:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:02,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:02,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:02,385 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 18:25:02,386 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 18:25:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:02,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:25:02,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:02,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:02,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:02,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:02,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253747134] [2024-09-12 18:25:02,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:02,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522124781] [2024-09-12 18:25:02,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522124781] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:02,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:02,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 18:25:02,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285105358] [2024-09-12 18:25:02,843 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:02,843 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:25:02,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:02,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:25:02,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:25:02,844 INFO L87 Difference]: Start difference. First operand 218 states and 250 transitions. Second operand has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:05,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:05,730 INFO L93 Difference]: Finished difference Result 317 states and 387 transitions. [2024-09-12 18:25:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:25:05,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2024-09-12 18:25:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:05,732 INFO L225 Difference]: With dead ends: 317 [2024-09-12 18:25:05,732 INFO L226 Difference]: Without dead ends: 315 [2024-09-12 18:25:05,732 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:25:05,732 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 385 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:05,733 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 296 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-09-12 18:25:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-09-12 18:25:05,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 295. [2024-09-12 18:25:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 242 states have (on average 1.4586776859504131) internal successors, (353), 284 states have internal predecessors, (353), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:25:05,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 367 transitions. [2024-09-12 18:25:05,815 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 367 transitions. Word has length 44 [2024-09-12 18:25:05,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:05,815 INFO L474 AbstractCegarLoop]: Abstraction has 295 states and 367 transitions. [2024-09-12 18:25:05,815 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:05,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:05,815 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 367 transitions. [2024-09-12 18:25:05,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 18:25:05,816 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:05,816 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:05,832 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:06,020 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 18:25:06,021 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:06,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:06,021 INFO L85 PathProgramCache]: Analyzing trace with hash 422701479, now seen corresponding path program 1 times [2024-09-12 18:25:06,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:06,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642374431] [2024-09-12 18:25:06,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:06,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:06,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434701774] [2024-09-12 18:25:06,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:06,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:06,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:06,032 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 18:25:06,033 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 18:25:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:06,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:25:06,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:06,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:06,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:06,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:06,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642374431] [2024-09-12 18:25:06,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:06,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434701774] [2024-09-12 18:25:06,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434701774] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:06,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:06,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 18:25:06,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343210887] [2024-09-12 18:25:06,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:06,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:25:06,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:06,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:25:06,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:25:06,566 INFO L87 Difference]: Start difference. First operand 295 states and 367 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:08,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:08,867 INFO L93 Difference]: Finished difference Result 318 states and 383 transitions. [2024-09-12 18:25:08,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:25:08,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2024-09-12 18:25:08,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:08,869 INFO L225 Difference]: With dead ends: 318 [2024-09-12 18:25:08,869 INFO L226 Difference]: Without dead ends: 316 [2024-09-12 18:25:08,869 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:25:08,869 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 335 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:08,869 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 397 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-09-12 18:25:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-09-12 18:25:08,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 296. [2024-09-12 18:25:08,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 244 states have (on average 1.4385245901639345) internal successors, (351), 285 states have internal predecessors, (351), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:25:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 365 transitions. [2024-09-12 18:25:08,949 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 365 transitions. Word has length 45 [2024-09-12 18:25:08,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:08,949 INFO L474 AbstractCegarLoop]: Abstraction has 296 states and 365 transitions. [2024-09-12 18:25:08,949 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:08,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 365 transitions. [2024-09-12 18:25:08,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:25:08,950 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:08,950 INFO L216 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:08,964 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 18:25:09,150 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:25:09,151 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:09,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:09,151 INFO L85 PathProgramCache]: Analyzing trace with hash -144293323, now seen corresponding path program 1 times [2024-09-12 18:25:09,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:09,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002261695] [2024-09-12 18:25:09,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:09,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:09,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1212757120] [2024-09-12 18:25:09,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:09,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:09,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:09,168 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 18:25:09,169 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 18:25:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:09,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:25:09,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:09,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:09,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:09,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002261695] [2024-09-12 18:25:09,619 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:09,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212757120] [2024-09-12 18:25:09,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212757120] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:09,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:09,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-12 18:25:09,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468976475] [2024-09-12 18:25:09,619 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:09,620 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:25:09,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:09,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:25:09,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:25:09,620 INFO L87 Difference]: Start difference. First operand 296 states and 365 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:12,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:12,975 INFO L93 Difference]: Finished difference Result 447 states and 548 transitions. [2024-09-12 18:25:12,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:25:12,975 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2024-09-12 18:25:12,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:12,977 INFO L225 Difference]: With dead ends: 447 [2024-09-12 18:25:12,977 INFO L226 Difference]: Without dead ends: 445 [2024-09-12 18:25:12,978 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:25:12,978 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 963 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:12,978 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 278 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-09-12 18:25:12,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-09-12 18:25:13,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 342. [2024-09-12 18:25:13,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 288 states have (on average 1.4513888888888888) internal successors, (418), 329 states have internal predecessors, (418), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:25:13,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 436 transitions. [2024-09-12 18:25:13,083 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 436 transitions. Word has length 48 [2024-09-12 18:25:13,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:13,083 INFO L474 AbstractCegarLoop]: Abstraction has 342 states and 436 transitions. [2024-09-12 18:25:13,084 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:13,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:13,084 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 436 transitions. [2024-09-12 18:25:13,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:25:13,084 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:13,084 INFO L216 NwaCegarLoop]: trace histogram [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 18:25:13,097 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 18:25:13,285 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:13,285 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:13,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:13,285 INFO L85 PathProgramCache]: Analyzing trace with hash -178125653, now seen corresponding path program 1 times [2024-09-12 18:25:13,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:13,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936433260] [2024-09-12 18:25:13,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:13,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:13,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311883934] [2024-09-12 18:25:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:13,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:13,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:13,295 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 18:25:13,295 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 18:25:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:13,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:25:13,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:13,428 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:13,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:13,932 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:13,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:13,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936433260] [2024-09-12 18:25:13,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:13,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311883934] [2024-09-12 18:25:13,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311883934] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:13,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:13,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-09-12 18:25:13,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023828011] [2024-09-12 18:25:13,933 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:13,934 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:25:13,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:13,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:25:13,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:25:13,934 INFO L87 Difference]: Start difference. First operand 342 states and 436 transitions. Second operand has 14 states, 13 states have (on average 6.461538461538462) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:17,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:17,879 INFO L93 Difference]: Finished difference Result 443 states and 557 transitions. [2024-09-12 18:25:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 18:25:17,879 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.461538461538462) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 49 [2024-09-12 18:25:17,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:17,881 INFO L225 Difference]: With dead ends: 443 [2024-09-12 18:25:17,881 INFO L226 Difference]: Without dead ends: 441 [2024-09-12 18:25:17,882 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:25:17,882 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 801 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:17,882 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 341 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-09-12 18:25:17,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-09-12 18:25:17,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 373. [2024-09-12 18:25:17,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 318 states have (on average 1.4528301886792452) internal successors, (462), 359 states have internal predecessors, (462), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:25:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 482 transitions. [2024-09-12 18:25:17,991 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 482 transitions. Word has length 49 [2024-09-12 18:25:17,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:17,991 INFO L474 AbstractCegarLoop]: Abstraction has 373 states and 482 transitions. [2024-09-12 18:25:17,991 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.461538461538462) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:17,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 482 transitions. [2024-09-12 18:25:17,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:25:17,992 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:17,992 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:18,005 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:18,192 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:25:18,192 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:18,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:18,193 INFO L85 PathProgramCache]: Analyzing trace with hash -2036196891, now seen corresponding path program 1 times [2024-09-12 18:25:18,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:18,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974416041] [2024-09-12 18:25:18,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:18,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:18,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291511840] [2024-09-12 18:25:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:18,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:18,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:18,205 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 18:25:18,209 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 18:25:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:18,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:25:18,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:18,336 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:18,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:18,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:18,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974416041] [2024-09-12 18:25:18,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:18,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291511840] [2024-09-12 18:25:18,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291511840] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:18,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:25:18,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:25:18,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014879306] [2024-09-12 18:25:18,510 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:18,510 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:25:18,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:18,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:25:18,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:25:18,511 INFO L87 Difference]: Start difference. First operand 373 states and 482 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:18,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:18,900 INFO L93 Difference]: Finished difference Result 387 states and 487 transitions. [2024-09-12 18:25:18,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:25:18,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2024-09-12 18:25:18,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:18,902 INFO L225 Difference]: With dead ends: 387 [2024-09-12 18:25:18,902 INFO L226 Difference]: Without dead ends: 383 [2024-09-12 18:25:18,903 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:25:18,903 INFO L434 NwaCegarLoop]: 115 mSDtfsCounter, 151 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:18,903 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 391 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:18,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-09-12 18:25:19,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 369. [2024-09-12 18:25:19,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 318 states have (on average 1.421383647798742) internal successors, (452), 355 states have internal predecessors, (452), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:25:19,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 472 transitions. [2024-09-12 18:25:19,018 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 472 transitions. Word has length 50 [2024-09-12 18:25:19,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:19,019 INFO L474 AbstractCegarLoop]: Abstraction has 369 states and 472 transitions. [2024-09-12 18:25:19,019 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:19,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:19,019 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 472 transitions. [2024-09-12 18:25:19,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 18:25:19,019 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:19,019 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:19,032 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 18:25:19,219 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:19,220 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:19,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:19,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1302405879, now seen corresponding path program 1 times [2024-09-12 18:25:19,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:19,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833514850] [2024-09-12 18:25:19,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:19,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:19,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877006391] [2024-09-12 18:25:19,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:19,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:19,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:19,228 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 18:25:19,230 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 18:25:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:19,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:25:19,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:19,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:19,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:19,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833514850] [2024-09-12 18:25:19,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:19,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877006391] [2024-09-12 18:25:19,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877006391] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:19,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:25:19,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:25:19,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884857296] [2024-09-12 18:25:19,833 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:19,833 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:25:19,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:19,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:25:19,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:25:19,833 INFO L87 Difference]: Start difference. First operand 369 states and 472 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:20,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:20,211 INFO L93 Difference]: Finished difference Result 489 states and 619 transitions. [2024-09-12 18:25:20,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:25:20,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-09-12 18:25:20,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:20,215 INFO L225 Difference]: With dead ends: 489 [2024-09-12 18:25:20,215 INFO L226 Difference]: Without dead ends: 487 [2024-09-12 18:25:20,216 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:25:20,216 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 298 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:20,218 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 319 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:20,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-09-12 18:25:20,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 437. [2024-09-12 18:25:20,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 384 states have (on average 1.4505208333333333) internal successors, (557), 421 states have internal predecessors, (557), 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 18:25:20,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 581 transitions. [2024-09-12 18:25:20,350 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 581 transitions. Word has length 51 [2024-09-12 18:25:20,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:20,351 INFO L474 AbstractCegarLoop]: Abstraction has 437 states and 581 transitions. [2024-09-12 18:25:20,351 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:20,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:20,351 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 581 transitions. [2024-09-12 18:25:20,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 18:25:20,351 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:20,351 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:20,369 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 18:25:20,552 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:20,552 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:20,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:20,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2038314937, now seen corresponding path program 1 times [2024-09-12 18:25:20,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:20,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204302312] [2024-09-12 18:25:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:20,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:20,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397104363] [2024-09-12 18:25:20,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:20,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:20,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:20,570 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:20,571 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 18:25:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:20,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:25:20,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:20,666 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 18:25:20,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:20,710 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 18:25:20,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:20,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204302312] [2024-09-12 18:25:20,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:20,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397104363] [2024-09-12 18:25:20,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397104363] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:20,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:20,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2024-09-12 18:25:20,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80813877] [2024-09-12 18:25:20,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:20,711 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:25:20,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:20,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:25:20,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:25:20,711 INFO L87 Difference]: Start difference. First operand 437 states and 581 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:20,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:20,999 INFO L93 Difference]: Finished difference Result 486 states and 614 transitions. [2024-09-12 18:25:21,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:25:21,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2024-09-12 18:25:21,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:21,002 INFO L225 Difference]: With dead ends: 486 [2024-09-12 18:25:21,002 INFO L226 Difference]: Without dead ends: 484 [2024-09-12 18:25:21,002 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:25:21,002 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 305 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:21,003 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 223 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:25:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-09-12 18:25:21,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 437. [2024-09-12 18:25:21,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 384 states have (on average 1.4401041666666667) internal successors, (553), 421 states have internal predecessors, (553), 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 18:25:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 577 transitions. [2024-09-12 18:25:21,140 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 577 transitions. Word has length 52 [2024-09-12 18:25:21,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:21,141 INFO L474 AbstractCegarLoop]: Abstraction has 437 states and 577 transitions. [2024-09-12 18:25:21,141 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:25:21,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:21,141 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 577 transitions. [2024-09-12 18:25:21,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 18:25:21,141 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:21,142 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:21,154 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:21,342 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:25:21,342 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:21,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:21,343 INFO L85 PathProgramCache]: Analyzing trace with hash 315569787, now seen corresponding path program 1 times [2024-09-12 18:25:21,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:21,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753697548] [2024-09-12 18:25:21,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:21,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:21,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778483118] [2024-09-12 18:25:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:21,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:21,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:21,351 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:21,352 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 18:25:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:21,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 18:25:21,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:21,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:22,077 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:22,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:22,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753697548] [2024-09-12 18:25:22,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:22,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778483118] [2024-09-12 18:25:22,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778483118] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:22,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:22,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-09-12 18:25:22,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794638989] [2024-09-12 18:25:22,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:22,078 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:25:22,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:22,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:25:22,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:25:22,079 INFO L87 Difference]: Start difference. First operand 437 states and 577 transitions. Second operand has 14 states, 13 states have (on average 7.230769230769231) internal successors, (94), 14 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:30,154 INFO L93 Difference]: Finished difference Result 508 states and 657 transitions. [2024-09-12 18:25:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:25:30,154 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.230769230769231) internal successors, (94), 14 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2024-09-12 18:25:30,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:30,156 INFO L225 Difference]: With dead ends: 508 [2024-09-12 18:25:30,156 INFO L226 Difference]: Without dead ends: 504 [2024-09-12 18:25:30,157 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:25:30,157 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 679 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:30,157 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 301 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-09-12 18:25:30,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-09-12 18:25:30,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 452. [2024-09-12 18:25:30,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 399 states have (on average 1.418546365914787) internal successors, (566), 436 states have internal predecessors, (566), 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 18:25:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 590 transitions. [2024-09-12 18:25:30,303 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 590 transitions. Word has length 54 [2024-09-12 18:25:30,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:30,303 INFO L474 AbstractCegarLoop]: Abstraction has 452 states and 590 transitions. [2024-09-12 18:25:30,303 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.230769230769231) internal successors, (94), 14 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:30,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 590 transitions. [2024-09-12 18:25:30,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 18:25:30,303 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:30,304 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-09-12 18:25:30,316 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:30,504 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:30,504 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:30,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:30,504 INFO L85 PathProgramCache]: Analyzing trace with hash -760949143, now seen corresponding path program 1 times [2024-09-12 18:25:30,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:30,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031534040] [2024-09-12 18:25:30,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:30,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:30,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913947648] [2024-09-12 18:25:30,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:30,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:30,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:30,513 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:30,515 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:25:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:30,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:25:30,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:30,666 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:30,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:31,003 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:31,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:31,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031534040] [2024-09-12 18:25:31,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:31,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913947648] [2024-09-12 18:25:31,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913947648] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:31,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:31,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-09-12 18:25:31,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427112650] [2024-09-12 18:25:31,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:31,005 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:25:31,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:31,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:25:31,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:25:31,006 INFO L87 Difference]: Start difference. First operand 452 states and 590 transitions. Second operand has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:33,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:33,217 INFO L93 Difference]: Finished difference Result 605 states and 735 transitions. [2024-09-12 18:25:33,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:25:33,218 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2024-09-12 18:25:33,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:33,220 INFO L225 Difference]: With dead ends: 605 [2024-09-12 18:25:33,220 INFO L226 Difference]: Without dead ends: 604 [2024-09-12 18:25:33,220 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:25:33,221 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 899 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:33,221 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 550 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 18:25:33,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-09-12 18:25:33,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 489. [2024-09-12 18:25:33,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 435 states have (on average 1.4206896551724137) internal successors, (618), 472 states have internal predecessors, (618), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:25:33,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 644 transitions. [2024-09-12 18:25:33,392 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 644 transitions. Word has length 54 [2024-09-12 18:25:33,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:33,393 INFO L474 AbstractCegarLoop]: Abstraction has 489 states and 644 transitions. [2024-09-12 18:25:33,393 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:33,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:33,393 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 644 transitions. [2024-09-12 18:25:33,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:25:33,393 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:33,393 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:33,407 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 18:25:33,594 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 18:25:33,594 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:33,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:33,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1192728881, now seen corresponding path program 1 times [2024-09-12 18:25:33,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:33,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113883619] [2024-09-12 18:25:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:33,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:33,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:33,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:25:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:33,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:33,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113883619] [2024-09-12 18:25:33,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113883619] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:33,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078329615] [2024-09-12 18:25:33,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:33,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:33,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:33,644 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:33,645 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 18:25:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:33,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:25:33,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:33,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:33,780 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:33,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078329615] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:33,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:25:33,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-09-12 18:25:33,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287054417] [2024-09-12 18:25:33,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:33,781 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:25:33,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:33,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:25:33,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:25:33,782 INFO L87 Difference]: Start difference. First operand 489 states and 644 transitions. Second operand has 11 states, 10 states have (on average 12.2) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:25:34,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:34,222 INFO L93 Difference]: Finished difference Result 489 states and 644 transitions. [2024-09-12 18:25:34,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:25:34,223 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.2) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2024-09-12 18:25:34,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:34,225 INFO L225 Difference]: With dead ends: 489 [2024-09-12 18:25:34,225 INFO L226 Difference]: Without dead ends: 487 [2024-09-12 18:25:34,226 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:25:34,226 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 159 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:34,226 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 312 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:34,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-09-12 18:25:34,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2024-09-12 18:25:34,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 435 states have (on average 1.3908045977011494) internal successors, (605), 470 states have internal predecessors, (605), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:25:34,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 631 transitions. [2024-09-12 18:25:34,401 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 631 transitions. Word has length 55 [2024-09-12 18:25:34,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:34,401 INFO L474 AbstractCegarLoop]: Abstraction has 487 states and 631 transitions. [2024-09-12 18:25:34,401 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.2) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:25:34,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:34,402 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 631 transitions. [2024-09-12 18:25:34,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:25:34,402 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:34,402 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-09-12 18:25:34,415 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:34,603 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:25:34,603 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:34,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:34,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2114586885, now seen corresponding path program 1 times [2024-09-12 18:25:34,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:34,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128182777] [2024-09-12 18:25:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:34,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:34,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534466133] [2024-09-12 18:25:34,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:34,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:34,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:34,611 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:34,613 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 18:25:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:34,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:25:34,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:34,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:35,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:35,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128182777] [2024-09-12 18:25:35,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:35,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534466133] [2024-09-12 18:25:35,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534466133] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:35,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:35,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-09-12 18:25:35,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443466660] [2024-09-12 18:25:35,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:35,334 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:25:35,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:35,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:25:35,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:25:35,335 INFO L87 Difference]: Start difference. First operand 487 states and 631 transitions. Second operand has 13 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:37,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:37,978 INFO L93 Difference]: Finished difference Result 599 states and 714 transitions. [2024-09-12 18:25:37,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:25:37,978 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2024-09-12 18:25:37,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:37,980 INFO L225 Difference]: With dead ends: 599 [2024-09-12 18:25:37,980 INFO L226 Difference]: Without dead ends: 597 [2024-09-12 18:25:37,981 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:25:37,981 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 903 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:37,981 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 593 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-09-12 18:25:37,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-09-12 18:25:38,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 487. [2024-09-12 18:25:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 435 states have (on average 1.3724137931034484) internal successors, (597), 470 states have internal predecessors, (597), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:25:38,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 623 transitions. [2024-09-12 18:25:38,162 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 623 transitions. Word has length 55 [2024-09-12 18:25:38,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:38,163 INFO L474 AbstractCegarLoop]: Abstraction has 487 states and 623 transitions. [2024-09-12 18:25:38,163 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:38,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:38,163 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 623 transitions. [2024-09-12 18:25:38,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:25:38,163 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:38,163 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:38,176 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:38,364 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:25:38,364 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:38,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:38,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1127683925, now seen corresponding path program 1 times [2024-09-12 18:25:38,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:38,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691608792] [2024-09-12 18:25:38,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:38,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:38,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286551659] [2024-09-12 18:25:38,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:38,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:38,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:38,374 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:38,375 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 18:25:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 18:25:38,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:38,697 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:38,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:40,139 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:40,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:40,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691608792] [2024-09-12 18:25:40,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:40,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286551659] [2024-09-12 18:25:40,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286551659] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:40,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:40,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-09-12 18:25:40,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382270920] [2024-09-12 18:25:40,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:40,139 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:25:40,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:40,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:25:40,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:25:40,140 INFO L87 Difference]: Start difference. First operand 487 states and 623 transitions. Second operand has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:47,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:47,529 INFO L93 Difference]: Finished difference Result 566 states and 712 transitions. [2024-09-12 18:25:47,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 18:25:47,530 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2024-09-12 18:25:47,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:47,532 INFO L225 Difference]: With dead ends: 566 [2024-09-12 18:25:47,532 INFO L226 Difference]: Without dead ends: 564 [2024-09-12 18:25:47,533 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=341, Invalid=1729, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 18:25:47,534 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 469 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 2233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:47,534 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 540 Invalid, 2233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-09-12 18:25:47,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-09-12 18:25:47,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 489. [2024-09-12 18:25:47,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 437 states have (on average 1.366132723112128) internal successors, (597), 472 states have internal predecessors, (597), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:25:47,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 623 transitions. [2024-09-12 18:25:47,731 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 623 transitions. Word has length 56 [2024-09-12 18:25:47,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:47,731 INFO L474 AbstractCegarLoop]: Abstraction has 489 states and 623 transitions. [2024-09-12 18:25:47,731 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:47,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:47,732 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 623 transitions. [2024-09-12 18:25:47,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:25:47,732 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:47,732 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:47,745 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:47,932 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:25:47,933 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:47,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:47,933 INFO L85 PathProgramCache]: Analyzing trace with hash -598463235, now seen corresponding path program 1 times [2024-09-12 18:25:47,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:47,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63566966] [2024-09-12 18:25:47,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:47,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:47,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [379050282] [2024-09-12 18:25:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:47,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:47,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:47,941 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:47,942 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 18:25:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:47,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:25:47,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:48,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:48,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63566966] [2024-09-12 18:25:48,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379050282] [2024-09-12 18:25:48,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379050282] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:48,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:48,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-09-12 18:25:48,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261717798] [2024-09-12 18:25:48,973 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:48,974 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:25:48,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:48,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:25:48,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:25:48,974 INFO L87 Difference]: Start difference. First operand 489 states and 623 transitions. Second operand has 18 states, 17 states have (on average 5.882352941176471) internal successors, (100), 18 states have internal predecessors, (100), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:58,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:58,825 INFO L93 Difference]: Finished difference Result 599 states and 759 transitions. [2024-09-12 18:25:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 18:25:58,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.882352941176471) internal successors, (100), 18 states have internal predecessors, (100), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 57 [2024-09-12 18:25:58,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:58,827 INFO L225 Difference]: With dead ends: 599 [2024-09-12 18:25:58,828 INFO L226 Difference]: Without dead ends: 594 [2024-09-12 18:25:58,828 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=343, Invalid=1549, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 18:25:58,828 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 725 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:58,829 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 438 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-09-12 18:25:58,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-09-12 18:25:59,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 503. [2024-09-12 18:25:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 451 states have (on average 1.3547671840354767) internal successors, (611), 486 states have internal predecessors, (611), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:25:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 637 transitions. [2024-09-12 18:25:59,033 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 637 transitions. Word has length 57 [2024-09-12 18:25:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:59,033 INFO L474 AbstractCegarLoop]: Abstraction has 503 states and 637 transitions. [2024-09-12 18:25:59,033 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.882352941176471) internal successors, (100), 18 states have internal predecessors, (100), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:59,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 637 transitions. [2024-09-12 18:25:59,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:25:59,034 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:59,034 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:59,047 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:59,234 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:59,235 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:25:59,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:59,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1372491027, now seen corresponding path program 1 times [2024-09-12 18:25:59,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:59,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251422569] [2024-09-12 18:25:59,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:59,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:59,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68665100] [2024-09-12 18:25:59,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:59,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:59,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:59,244 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:59,247 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 18:25:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:25:59,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:59,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:59,627 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:59,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:59,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251422569] [2024-09-12 18:25:59,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:59,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68665100] [2024-09-12 18:25:59,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68665100] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:59,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:25:59,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-09-12 18:25:59,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699724047] [2024-09-12 18:25:59,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:59,628 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:25:59,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:59,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:25:59,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:25:59,629 INFO L87 Difference]: Start difference. First operand 503 states and 637 transitions. Second operand has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:01,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:01,417 INFO L93 Difference]: Finished difference Result 607 states and 769 transitions. [2024-09-12 18:26:01,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:26:01,417 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2024-09-12 18:26:01,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:01,419 INFO L225 Difference]: With dead ends: 607 [2024-09-12 18:26:01,419 INFO L226 Difference]: Without dead ends: 605 [2024-09-12 18:26:01,420 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=656, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:26:01,420 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 286 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:01,420 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 735 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:26:01,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-09-12 18:26:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 515. [2024-09-12 18:26:01,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 463 states have (on average 1.3585313174946003) internal successors, (629), 498 states have internal predecessors, (629), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:26:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 655 transitions. [2024-09-12 18:26:01,647 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 655 transitions. Word has length 58 [2024-09-12 18:26:01,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:01,648 INFO L474 AbstractCegarLoop]: Abstraction has 515 states and 655 transitions. [2024-09-12 18:26:01,648 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:01,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:01,651 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 655 transitions. [2024-09-12 18:26:01,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:26:01,652 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:01,652 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 18:26:01,681 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 18:26:01,852 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 18:26:01,852 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:01,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:01,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1383744565, now seen corresponding path program 1 times [2024-09-12 18:26:01,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:01,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034682453] [2024-09-12 18:26:01,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:01,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:26:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,900 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:01,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:01,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034682453] [2024-09-12 18:26:01,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034682453] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:01,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220312084] [2024-09-12 18:26:01,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:01,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:01,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:01,902 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:01,903 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 18:26:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:26:01,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:01,996 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:02,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220312084] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:02,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:26:02,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-09-12 18:26:02,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131837039] [2024-09-12 18:26:02,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:02,083 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:26:02,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:02,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:26:02,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:26:02,084 INFO L87 Difference]: Start difference. First operand 515 states and 655 transitions. Second operand has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:02,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:02,727 INFO L93 Difference]: Finished difference Result 680 states and 886 transitions. [2024-09-12 18:26:02,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:26:02,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 59 [2024-09-12 18:26:02,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:02,729 INFO L225 Difference]: With dead ends: 680 [2024-09-12 18:26:02,730 INFO L226 Difference]: Without dead ends: 678 [2024-09-12 18:26:02,730 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:26:02,730 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 227 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:02,730 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 287 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:26:02,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-09-12 18:26:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 645. [2024-09-12 18:26:03,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 590 states have (on average 1.3915254237288135) internal successors, (821), 625 states have internal predecessors, (821), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 18:26:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 853 transitions. [2024-09-12 18:26:03,013 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 853 transitions. Word has length 59 [2024-09-12 18:26:03,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:03,013 INFO L474 AbstractCegarLoop]: Abstraction has 645 states and 853 transitions. [2024-09-12 18:26:03,014 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:03,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 853 transitions. [2024-09-12 18:26:03,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 18:26:03,014 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:03,014 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:03,027 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:03,215 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:26:03,215 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:03,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:03,215 INFO L85 PathProgramCache]: Analyzing trace with hash -53591359, now seen corresponding path program 1 times [2024-09-12 18:26:03,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:03,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085733564] [2024-09-12 18:26:03,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:03,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:26:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,268 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:03,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:03,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085733564] [2024-09-12 18:26:03,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085733564] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:26:03,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:26:03,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:26:03,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980565288] [2024-09-12 18:26:03,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:26:03,269 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:26:03,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:03,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:26:03,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:26:03,270 INFO L87 Difference]: Start difference. First operand 645 states and 853 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:26:03,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:03,907 INFO L93 Difference]: Finished difference Result 890 states and 1201 transitions. [2024-09-12 18:26:03,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:26:03,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2024-09-12 18:26:03,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:03,910 INFO L225 Difference]: With dead ends: 890 [2024-09-12 18:26:03,910 INFO L226 Difference]: Without dead ends: 888 [2024-09-12 18:26:03,911 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 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 18:26:03,911 INFO L434 NwaCegarLoop]: 113 mSDtfsCounter, 89 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:03,911 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 302 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:26:03,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-09-12 18:26:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 815. [2024-09-12 18:26:04,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 755 states have (on average 1.4264900662251656) internal successors, (1077), 790 states have internal predecessors, (1077), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:26:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1119 transitions. [2024-09-12 18:26:04,304 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1119 transitions. Word has length 60 [2024-09-12 18:26:04,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:04,304 INFO L474 AbstractCegarLoop]: Abstraction has 815 states and 1119 transitions. [2024-09-12 18:26:04,304 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:26:04,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1119 transitions. [2024-09-12 18:26:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 18:26:04,304 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:04,304 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:04,304 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-09-12 18:26:04,304 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:04,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:04,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1661332041, now seen corresponding path program 1 times [2024-09-12 18:26:04,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:04,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255622] [2024-09-12 18:26:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:04,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:04,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367777384] [2024-09-12 18:26:04,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:04,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:04,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:04,314 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:04,315 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 18:26:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:04,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:26:04,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:04,545 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:04,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:04,790 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 18:26:04,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:04,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255622] [2024-09-12 18:26:04,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:04,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367777384] [2024-09-12 18:26:04,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367777384] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:04,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:26:04,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-09-12 18:26:04,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063794343] [2024-09-12 18:26:04,791 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:04,791 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:26:04,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:04,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:26:04,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:26:04,791 INFO L87 Difference]: Start difference. First operand 815 states and 1119 transitions. Second operand has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:08,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:08,082 INFO L93 Difference]: Finished difference Result 842 states and 1148 transitions. [2024-09-12 18:26:08,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:26:08,083 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 61 [2024-09-12 18:26:08,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:08,086 INFO L225 Difference]: With dead ends: 842 [2024-09-12 18:26:08,086 INFO L226 Difference]: Without dead ends: 838 [2024-09-12 18:26:08,086 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:26:08,087 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 317 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:08,087 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 284 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-09-12 18:26:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-09-12 18:26:08,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 822. [2024-09-12 18:26:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 762 states have (on average 1.4186351706036746) internal successors, (1081), 797 states have internal predecessors, (1081), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:26:08,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1123 transitions. [2024-09-12 18:26:08,468 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1123 transitions. Word has length 61 [2024-09-12 18:26:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:08,468 INFO L474 AbstractCegarLoop]: Abstraction has 822 states and 1123 transitions. [2024-09-12 18:26:08,469 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:08,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1123 transitions. [2024-09-12 18:26:08,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:26:08,469 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:08,469 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-09-12 18:26:08,482 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:08,670 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:08,670 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:08,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:08,670 INFO L85 PathProgramCache]: Analyzing trace with hash -2124943503, now seen corresponding path program 1 times [2024-09-12 18:26:08,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:08,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400177169] [2024-09-12 18:26:08,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:08,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:08,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:08,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:26:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:08,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:08,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400177169] [2024-09-12 18:26:08,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400177169] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:08,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684938740] [2024-09-12 18:26:08,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:08,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:08,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:08,738 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:08,739 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 18:26:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:08,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:26:08,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:08,838 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:08,931 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684938740] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:08,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:26:08,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-09-12 18:26:08,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917613602] [2024-09-12 18:26:08,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:08,932 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:26:08,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:08,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:26:08,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:26:08,934 INFO L87 Difference]: Start difference. First operand 822 states and 1123 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:09,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:09,691 INFO L93 Difference]: Finished difference Result 859 states and 1149 transitions. [2024-09-12 18:26:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:26:09,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 62 [2024-09-12 18:26:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:09,695 INFO L225 Difference]: With dead ends: 859 [2024-09-12 18:26:09,695 INFO L226 Difference]: Without dead ends: 857 [2024-09-12 18:26:09,695 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:26:09,695 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 166 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:09,695 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 267 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:26:09,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-09-12 18:26:10,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 826. [2024-09-12 18:26:10,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 766 states have (on average 1.402088772845953) internal successors, (1074), 801 states have internal predecessors, (1074), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:26:10,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1116 transitions. [2024-09-12 18:26:10,092 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1116 transitions. Word has length 62 [2024-09-12 18:26:10,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:10,093 INFO L474 AbstractCegarLoop]: Abstraction has 826 states and 1116 transitions. [2024-09-12 18:26:10,093 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:10,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:10,093 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1116 transitions. [2024-09-12 18:26:10,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:26:10,093 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:10,093 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:10,106 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-09-12 18:26:10,294 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-09-12 18:26:10,294 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:10,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:10,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1034567381, now seen corresponding path program 1 times [2024-09-12 18:26:10,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:10,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935418583] [2024-09-12 18:26:10,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:10,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:10,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980088356] [2024-09-12 18:26:10,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:10,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:10,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:10,309 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:10,310 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 18:26:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:10,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:26:10,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:10,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 18:26:10,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:10,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935418583] [2024-09-12 18:26:10,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:10,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980088356] [2024-09-12 18:26:10,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980088356] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:10,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:26:10,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15 [2024-09-12 18:26:10,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790920115] [2024-09-12 18:26:10,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:10,699 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:26:10,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:26:10,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:26:10,699 INFO L87 Difference]: Start difference. First operand 826 states and 1116 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:12,095 INFO L93 Difference]: Finished difference Result 848 states and 1140 transitions. [2024-09-12 18:26:12,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 18:26:12,095 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 65 [2024-09-12 18:26:12,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:12,098 INFO L225 Difference]: With dead ends: 848 [2024-09-12 18:26:12,098 INFO L226 Difference]: Without dead ends: 823 [2024-09-12 18:26:12,098 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 114 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:26:12,099 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 279 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:12,099 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 315 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:26:12,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-09-12 18:26:12,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 808. [2024-09-12 18:26:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 747 states have (on average 1.4109772423025435) internal successors, (1054), 782 states have internal predecessors, (1054), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:26:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1096 transitions. [2024-09-12 18:26:12,492 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1096 transitions. Word has length 65 [2024-09-12 18:26:12,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:12,493 INFO L474 AbstractCegarLoop]: Abstraction has 808 states and 1096 transitions. [2024-09-12 18:26:12,493 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:12,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:12,493 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1096 transitions. [2024-09-12 18:26:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-09-12 18:26:12,493 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:12,493 INFO L216 NwaCegarLoop]: trace histogram [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, 1] [2024-09-12 18:26:12,505 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-09-12 18:26:12,693 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:12,694 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:12,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:12,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1961238093, now seen corresponding path program 1 times [2024-09-12 18:26:12,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:12,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411235539] [2024-09-12 18:26:12,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:12,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:12,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [917456318] [2024-09-12 18:26:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:12,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:12,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:12,703 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:12,705 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 18:26:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:12,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:26:12,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:12,940 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:12,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:13,267 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 18:26:13,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:13,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411235539] [2024-09-12 18:26:13,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:13,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917456318] [2024-09-12 18:26:13,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917456318] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:13,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:26:13,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2024-09-12 18:26:13,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199814458] [2024-09-12 18:26:13,268 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:13,268 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:26:13,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:13,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:26:13,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:26:13,269 INFO L87 Difference]: Start difference. First operand 808 states and 1096 transitions. Second operand has 15 states, 14 states have (on average 7.714285714285714) internal successors, (108), 15 states have internal predecessors, (108), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:16,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:16,688 INFO L93 Difference]: Finished difference Result 821 states and 1108 transitions. [2024-09-12 18:26:16,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 18:26:16,688 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.714285714285714) internal successors, (108), 15 states have internal predecessors, (108), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 64 [2024-09-12 18:26:16,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:16,691 INFO L225 Difference]: With dead ends: 821 [2024-09-12 18:26:16,691 INFO L226 Difference]: Without dead ends: 819 [2024-09-12 18:26:16,691 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:26:16,692 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 311 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:16,692 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 215 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-09-12 18:26:16,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-09-12 18:26:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 813. [2024-09-12 18:26:17,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 753 states have (on average 1.399734395750332) internal successors, (1054), 787 states have internal predecessors, (1054), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:26:17,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1096 transitions. [2024-09-12 18:26:17,154 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1096 transitions. Word has length 64 [2024-09-12 18:26:17,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:17,154 INFO L474 AbstractCegarLoop]: Abstraction has 813 states and 1096 transitions. [2024-09-12 18:26:17,154 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.714285714285714) internal successors, (108), 15 states have internal predecessors, (108), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:17,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:17,154 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1096 transitions. [2024-09-12 18:26:17,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:26:17,155 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:17,155 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:17,171 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-09-12 18:26:17,355 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 18:26:17,355 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:17,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:17,356 INFO L85 PathProgramCache]: Analyzing trace with hash -668838651, now seen corresponding path program 1 times [2024-09-12 18:26:17,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:17,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054432371] [2024-09-12 18:26:17,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:17,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:17,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355686558] [2024-09-12 18:26:17,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:17,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:17,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:17,365 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:17,367 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 18:26:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:17,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:26:17,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:17,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 18:26:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:18,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054432371] [2024-09-12 18:26:18,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:18,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355686558] [2024-09-12 18:26:18,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355686558] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:18,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:26:18,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2024-09-12 18:26:18,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561906615] [2024-09-12 18:26:18,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:18,203 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:26:18,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:18,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:26:18,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:26:18,203 INFO L87 Difference]: Start difference. First operand 813 states and 1096 transitions. Second operand has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 15 states have internal predecessors, (110), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:22,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:22,500 INFO L93 Difference]: Finished difference Result 816 states and 1099 transitions. [2024-09-12 18:26:22,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 18:26:22,501 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 15 states have internal predecessors, (110), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 65 [2024-09-12 18:26:22,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:22,504 INFO L225 Difference]: With dead ends: 816 [2024-09-12 18:26:22,504 INFO L226 Difference]: Without dead ends: 815 [2024-09-12 18:26:22,504 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:26:22,505 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 292 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:22,505 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 200 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-09-12 18:26:22,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2024-09-12 18:26:23,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 812. [2024-09-12 18:26:23,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 753 states have (on average 1.3798140770252325) internal successors, (1039), 786 states have internal predecessors, (1039), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:26:23,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1081 transitions. [2024-09-12 18:26:23,006 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1081 transitions. Word has length 65 [2024-09-12 18:26:23,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:23,007 INFO L474 AbstractCegarLoop]: Abstraction has 812 states and 1081 transitions. [2024-09-12 18:26:23,007 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 15 states have internal predecessors, (110), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:23,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:23,007 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1081 transitions. [2024-09-12 18:26:23,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 18:26:23,007 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:23,007 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:23,020 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-09-12 18:26:23,208 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:26:23,208 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:23,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:23,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1517180551, now seen corresponding path program 1 times [2024-09-12 18:26:23,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:23,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215663222] [2024-09-12 18:26:23,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:23,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:23,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246805997] [2024-09-12 18:26:23,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:23,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:23,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:23,218 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:23,219 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 18:26:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:23,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:26:23,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:23,504 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:26:23,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 18:26:23,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:23,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215663222] [2024-09-12 18:26:23,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:23,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246805997] [2024-09-12 18:26:23,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246805997] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:23,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:26:23,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 17 [2024-09-12 18:26:23,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716629828] [2024-09-12 18:26:23,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:23,765 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:26:23,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:23,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:26:23,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:26:23,766 INFO L87 Difference]: Start difference. First operand 812 states and 1081 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 16 states have internal predecessors, (113), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:26,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:26,404 INFO L93 Difference]: Finished difference Result 821 states and 1089 transitions. [2024-09-12 18:26:26,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 18:26:26,404 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 16 states have internal predecessors, (113), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 69 [2024-09-12 18:26:26,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:26,407 INFO L225 Difference]: With dead ends: 821 [2024-09-12 18:26:26,407 INFO L226 Difference]: Without dead ends: 817 [2024-09-12 18:26:26,407 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 120 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:26:26,408 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 228 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:26,408 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 200 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-09-12 18:26:26,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-09-12 18:26:26,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 814. [2024-09-12 18:26:26,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 755 states have (on average 1.3774834437086092) internal successors, (1040), 787 states have internal predecessors, (1040), 22 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:26:26,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1082 transitions. [2024-09-12 18:26:26,961 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1082 transitions. Word has length 69 [2024-09-12 18:26:26,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:26,961 INFO L474 AbstractCegarLoop]: Abstraction has 814 states and 1082 transitions. [2024-09-12 18:26:26,961 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 16 states have internal predecessors, (113), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:26,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:26,961 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1082 transitions. [2024-09-12 18:26:26,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 18:26:26,962 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:26,962 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:26,974 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 18:26:27,162 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 18:26:27,162 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:27,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:27,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1833183832, now seen corresponding path program 1 times [2024-09-12 18:26:27,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:27,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546031681] [2024-09-12 18:26:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:27,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:27,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:27,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:26:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:27,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:26:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:27,229 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:27,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:27,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546031681] [2024-09-12 18:26:27,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546031681] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:27,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226547001] [2024-09-12 18:26:27,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:27,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:27,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:27,231 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:27,232 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 18:26:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:27,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:26:27,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:27,415 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:27,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:27,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226547001] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:27,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:26:27,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-12 18:26:27,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479669968] [2024-09-12 18:26:27,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:27,501 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:26:27,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:27,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:26:27,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:26:27,502 INFO L87 Difference]: Start difference. First operand 814 states and 1082 transitions. Second operand has 11 states, 10 states have (on average 17.5) internal successors, (175), 11 states have internal predecessors, (175), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:26:28,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:28,632 INFO L93 Difference]: Finished difference Result 1149 states and 1522 transitions. [2024-09-12 18:26:28,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:26:28,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 17.5) internal successors, (175), 11 states have internal predecessors, (175), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 71 [2024-09-12 18:26:28,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:28,636 INFO L225 Difference]: With dead ends: 1149 [2024-09-12 18:26:28,636 INFO L226 Difference]: Without dead ends: 1148 [2024-09-12 18:26:28,637 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=199, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:26:28,637 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 437 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:28,637 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 356 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:26:28,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2024-09-12 18:26:29,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1016. [2024-09-12 18:26:29,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 951 states have (on average 1.384858044164038) internal successors, (1317), 983 states have internal predecessors, (1317), 28 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:26:29,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1371 transitions. [2024-09-12 18:26:29,384 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1371 transitions. Word has length 71 [2024-09-12 18:26:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:29,384 INFO L474 AbstractCegarLoop]: Abstraction has 1016 states and 1371 transitions. [2024-09-12 18:26:29,385 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 17.5) internal successors, (175), 11 states have internal predecessors, (175), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:26:29,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:29,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1371 transitions. [2024-09-12 18:26:29,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 18:26:29,385 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:29,385 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:29,401 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:29,586 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 18:26:29,586 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:29,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:29,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1870265565, now seen corresponding path program 1 times [2024-09-12 18:26:29,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:29,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843701961] [2024-09-12 18:26:29,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:29,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:29,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:29,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:26:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:29,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:26:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:29,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:29,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843701961] [2024-09-12 18:26:29,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843701961] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:29,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338312994] [2024-09-12 18:26:29,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:29,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:29,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:29,646 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:29,647 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 18:26:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:29,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:26:29,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:29,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:26:29,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338312994] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:26:29,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:29,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 18:26:29,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736054506] [2024-09-12 18:26:29,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:26:29,726 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:26:29,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:29,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:26:29,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:26:29,726 INFO L87 Difference]: Start difference. First operand 1016 states and 1371 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:30,510 INFO L93 Difference]: Finished difference Result 1016 states and 1371 transitions. [2024-09-12 18:26:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:26:30,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 74 [2024-09-12 18:26:30,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:30,514 INFO L225 Difference]: With dead ends: 1016 [2024-09-12 18:26:30,514 INFO L226 Difference]: Without dead ends: 1015 [2024-09-12 18:26:30,515 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:26:30,515 INFO L434 NwaCegarLoop]: 125 mSDtfsCounter, 36 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:30,515 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 498 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:26:30,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-09-12 18:26:31,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2024-09-12 18:26:31,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 951 states have (on average 1.3617245005257623) internal successors, (1295), 982 states have internal predecessors, (1295), 28 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:26:31,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1349 transitions. [2024-09-12 18:26:31,338 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1349 transitions. Word has length 74 [2024-09-12 18:26:31,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:31,338 INFO L474 AbstractCegarLoop]: Abstraction has 1015 states and 1349 transitions. [2024-09-12 18:26:31,338 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:26:31,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:31,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1349 transitions. [2024-09-12 18:26:31,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 18:26:31,339 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:31,339 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:31,351 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:31,539 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:26:31,540 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:31,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:31,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1289329363, now seen corresponding path program 1 times [2024-09-12 18:26:31,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:31,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600249833] [2024-09-12 18:26:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:31,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:31,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:31,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:26:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:31,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:26:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:31,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:31,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600249833] [2024-09-12 18:26:31,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600249833] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:31,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75956465] [2024-09-12 18:26:31,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:31,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:31,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:31,599 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:31,600 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 18:26:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:31,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:26:31,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:31,733 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:31,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:31,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75956465] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:31,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:26:31,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-09-12 18:26:31,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801054998] [2024-09-12 18:26:31,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:31,839 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:26:31,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:31,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:26:31,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:26:31,839 INFO L87 Difference]: Start difference. First operand 1015 states and 1349 transitions. Second operand has 10 states, 9 states have (on average 17.22222222222222) internal successors, (155), 10 states have internal predecessors, (155), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:26:33,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:33,455 INFO L93 Difference]: Finished difference Result 1489 states and 1965 transitions. [2024-09-12 18:26:33,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:26:33,455 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 17.22222222222222) internal successors, (155), 10 states have internal predecessors, (155), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 74 [2024-09-12 18:26:33,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:33,460 INFO L225 Difference]: With dead ends: 1489 [2024-09-12 18:26:33,460 INFO L226 Difference]: Without dead ends: 1488 [2024-09-12 18:26:33,461 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:26:33,461 INFO L434 NwaCegarLoop]: 132 mSDtfsCounter, 413 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:33,461 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 533 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:26:33,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2024-09-12 18:26:34,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1274. [2024-09-12 18:26:34,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1202 states have (on average 1.3685524126455906) internal successors, (1645), 1233 states have internal predecessors, (1645), 36 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:26:34,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1715 transitions. [2024-09-12 18:26:34,531 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1715 transitions. Word has length 74 [2024-09-12 18:26:34,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:34,531 INFO L474 AbstractCegarLoop]: Abstraction has 1274 states and 1715 transitions. [2024-09-12 18:26:34,531 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 17.22222222222222) internal successors, (155), 10 states have internal predecessors, (155), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:26:34,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:34,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1715 transitions. [2024-09-12 18:26:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-12 18:26:34,532 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:34,532 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:34,545 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:34,733 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:26:34,733 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:34,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:34,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2143657538, now seen corresponding path program 1 times [2024-09-12 18:26:34,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:34,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928136941] [2024-09-12 18:26:34,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:34,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:34,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:34,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:26:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:34,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:26:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:34,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:34,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928136941] [2024-09-12 18:26:34,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928136941] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:34,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219341015] [2024-09-12 18:26:34,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:34,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:34,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:34,792 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:34,793 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 18:26:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:34,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:26:34,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:34,883 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:34,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219341015] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:34,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:26:34,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 18:26:34,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175735322] [2024-09-12 18:26:34,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:34,961 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:26:34,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:34,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:26:34,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:26:34,962 INFO L87 Difference]: Start difference. First operand 1274 states and 1715 transitions. Second operand has 12 states, 11 states have (on average 13.727272727272727) internal successors, (151), 12 states have internal predecessors, (151), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:26:36,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:36,435 INFO L93 Difference]: Finished difference Result 1575 states and 2085 transitions. [2024-09-12 18:26:36,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:26:36,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.727272727272727) internal successors, (151), 12 states have internal predecessors, (151), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 75 [2024-09-12 18:26:36,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:36,441 INFO L225 Difference]: With dead ends: 1575 [2024-09-12 18:26:36,441 INFO L226 Difference]: Without dead ends: 1574 [2024-09-12 18:26:36,442 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:26:36,442 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 95 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:36,442 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 575 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:26:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-09-12 18:26:37,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1523. [2024-09-12 18:26:37,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1446 states have (on average 1.3457814661134164) internal successors, (1946), 1477 states have internal predecessors, (1946), 41 states have call successors, (41), 6 states have call predecessors, (41), 4 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:26:37,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 2026 transitions. [2024-09-12 18:26:37,675 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 2026 transitions. Word has length 75 [2024-09-12 18:26:37,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:37,675 INFO L474 AbstractCegarLoop]: Abstraction has 1523 states and 2026 transitions. [2024-09-12 18:26:37,676 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.727272727272727) internal successors, (151), 12 states have internal predecessors, (151), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:26:37,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:37,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 2026 transitions. [2024-09-12 18:26:37,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:26:37,676 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:37,676 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:37,688 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:37,877 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:37,877 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:37,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1060107423, now seen corresponding path program 1 times [2024-09-12 18:26:37,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:37,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739969401] [2024-09-12 18:26:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:37,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:37,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:37,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:26:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:37,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:26:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:37,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:37,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739969401] [2024-09-12 18:26:37,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739969401] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:37,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955076056] [2024-09-12 18:26:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:37,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:37,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:37,967 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:37,967 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 18:26:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:38,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:26:38,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:38,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:38,534 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:38,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955076056] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:38,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:26:38,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 17 [2024-09-12 18:26:38,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841409245] [2024-09-12 18:26:38,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:38,536 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:26:38,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:38,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:26:38,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:26:38,537 INFO L87 Difference]: Start difference. First operand 1523 states and 2026 transitions. Second operand has 18 states, 17 states have (on average 11.294117647058824) internal successors, (192), 18 states have internal predecessors, (192), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:26:40,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:40,733 INFO L93 Difference]: Finished difference Result 1609 states and 2109 transitions. [2024-09-12 18:26:40,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 18:26:40,734 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 11.294117647058824) internal successors, (192), 18 states have internal predecessors, (192), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 78 [2024-09-12 18:26:40,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:40,739 INFO L225 Difference]: With dead ends: 1609 [2024-09-12 18:26:40,739 INFO L226 Difference]: Without dead ends: 1608 [2024-09-12 18:26:40,740 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:26:40,740 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 720 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:40,740 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 602 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:26:40,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-09-12 18:26:41,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1529. [2024-09-12 18:26:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1452 states have (on average 1.3415977961432506) internal successors, (1948), 1483 states have internal predecessors, (1948), 41 states have call successors, (41), 6 states have call predecessors, (41), 4 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:26:41,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2028 transitions. [2024-09-12 18:26:41,989 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2028 transitions. Word has length 78 [2024-09-12 18:26:41,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:41,989 INFO L474 AbstractCegarLoop]: Abstraction has 1529 states and 2028 transitions. [2024-09-12 18:26:41,989 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 11.294117647058824) internal successors, (192), 18 states have internal predecessors, (192), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:26:41,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:41,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2028 transitions. [2024-09-12 18:26:41,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:26:41,990 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:41,990 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 18:26:42,012 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-09-12 18:26:42,190 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:42,191 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:42,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:42,191 INFO L85 PathProgramCache]: Analyzing trace with hash 921288504, now seen corresponding path program 1 times [2024-09-12 18:26:42,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:42,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178761738] [2024-09-12 18:26:42,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:42,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:42,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890310742] [2024-09-12 18:26:42,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:42,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:42,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:42,208 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:42,210 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 18:26:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:42,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:26:42,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:42,397 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:42,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:42,905 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:42,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:42,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178761738] [2024-09-12 18:26:42,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:42,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890310742] [2024-09-12 18:26:42,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890310742] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:42,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:26:42,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-09-12 18:26:42,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335887542] [2024-09-12 18:26:42,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:42,906 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:26:42,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:42,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:26:42,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:26:42,907 INFO L87 Difference]: Start difference. First operand 1529 states and 2028 transitions. Second operand has 14 states, 13 states have (on average 10.0) internal successors, (130), 14 states have internal predecessors, (130), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:26:45,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:45,950 INFO L93 Difference]: Finished difference Result 1537 states and 2031 transitions. [2024-09-12 18:26:45,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:26:45,951 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.0) internal successors, (130), 14 states have internal predecessors, (130), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 79 [2024-09-12 18:26:45,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:45,955 INFO L225 Difference]: With dead ends: 1537 [2024-09-12 18:26:45,955 INFO L226 Difference]: Without dead ends: 1535 [2024-09-12 18:26:45,955 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:26:45,956 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 235 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:45,956 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 600 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 18:26:45,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-09-12 18:26:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1529. [2024-09-12 18:26:47,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1452 states have (on average 1.3381542699724518) internal successors, (1943), 1483 states have internal predecessors, (1943), 41 states have call successors, (41), 6 states have call predecessors, (41), 4 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:26:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2023 transitions. [2024-09-12 18:26:47,271 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2023 transitions. Word has length 79 [2024-09-12 18:26:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:47,271 INFO L474 AbstractCegarLoop]: Abstraction has 1529 states and 2023 transitions. [2024-09-12 18:26:47,272 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.0) internal successors, (130), 14 states have internal predecessors, (130), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:26:47,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2023 transitions. [2024-09-12 18:26:47,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 18:26:47,272 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:47,273 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:47,287 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-09-12 18:26:47,473 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-09-12 18:26:47,473 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:47,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:47,474 INFO L85 PathProgramCache]: Analyzing trace with hash 855988225, now seen corresponding path program 1 times [2024-09-12 18:26:47,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:47,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856548211] [2024-09-12 18:26:47,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:47,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:47,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:47,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:26:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:47,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:26:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:47,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:47,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856548211] [2024-09-12 18:26:47,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856548211] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:47,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324645882] [2024-09-12 18:26:47,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:47,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:47,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:47,550 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:47,552 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 18:26:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:47,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:26:47,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:47,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:26:47,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324645882] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:47,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:26:47,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 18:26:47,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276304570] [2024-09-12 18:26:47,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:47,734 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:26:47,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:47,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:26:47,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:26:47,735 INFO L87 Difference]: Start difference. First operand 1529 states and 2023 transitions. Second operand has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:26:49,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:49,562 INFO L93 Difference]: Finished difference Result 2084 states and 2724 transitions. [2024-09-12 18:26:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:26:49,562 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 80 [2024-09-12 18:26:49,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:49,567 INFO L225 Difference]: With dead ends: 2084 [2024-09-12 18:26:49,567 INFO L226 Difference]: Without dead ends: 2083 [2024-09-12 18:26:49,568 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:26:49,568 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 306 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:49,568 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 566 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:26:49,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2024-09-12 18:26:51,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1844. [2024-09-12 18:26:51,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1758 states have (on average 1.3486916951080774) internal successors, (2371), 1789 states have internal predecessors, (2371), 50 states have call successors, (50), 6 states have call predecessors, (50), 4 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 18:26:51,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2469 transitions. [2024-09-12 18:26:51,100 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2469 transitions. Word has length 80 [2024-09-12 18:26:51,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:51,101 INFO L474 AbstractCegarLoop]: Abstraction has 1844 states and 2469 transitions. [2024-09-12 18:26:51,101 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:26:51,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2469 transitions. [2024-09-12 18:26:51,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 18:26:51,101 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:51,101 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:26:51,114 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:51,302 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:51,302 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:26:51,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1504827298, now seen corresponding path program 1 times [2024-09-12 18:26:51,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:51,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546121691] [2024-09-12 18:26:51,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:51,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:51,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73656758] [2024-09-12 18:26:51,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:51,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:51,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:51,318 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:51,319 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 18:26:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:51,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 18:26:51,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:26:51,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:26:54,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:54,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546121691] [2024-09-12 18:26:54,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:54,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73656758] [2024-09-12 18:26:54,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73656758] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:54,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:26:54,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-09-12 18:26:54,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786509362] [2024-09-12 18:26:54,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:54,752 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 18:26:54,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:54,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 18:26:54,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=646, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:26:54,753 INFO L87 Difference]: Start difference. First operand 1844 states and 2469 transitions. Second operand has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 29 states have internal predecessors, (137), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:27:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:03,151 INFO L93 Difference]: Finished difference Result 1874 states and 2503 transitions. [2024-09-12 18:27:03,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-12 18:27:03,151 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 29 states have internal predecessors, (137), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 80 [2024-09-12 18:27:03,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:03,155 INFO L225 Difference]: With dead ends: 1874 [2024-09-12 18:27:03,155 INFO L226 Difference]: Without dead ends: 1873 [2024-09-12 18:27:03,156 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=722, Invalid=2470, Unknown=0, NotChecked=0, Total=3192 [2024-09-12 18:27:03,156 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 538 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:03,156 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 604 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-09-12 18:27:03,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2024-09-12 18:27:04,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1844. [2024-09-12 18:27:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1758 states have (on average 1.346985210466439) internal successors, (2368), 1789 states have internal predecessors, (2368), 50 states have call successors, (50), 6 states have call predecessors, (50), 4 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 18:27:04,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2466 transitions. [2024-09-12 18:27:04,680 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2466 transitions. Word has length 80 [2024-09-12 18:27:04,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:04,680 INFO L474 AbstractCegarLoop]: Abstraction has 1844 states and 2466 transitions. [2024-09-12 18:27:04,680 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 29 states have internal predecessors, (137), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:27:04,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:04,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2466 transitions. [2024-09-12 18:27:04,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 18:27:04,681 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:04,681 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:27:04,698 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-09-12 18:27:04,881 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:04,882 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:27:04,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:04,882 INFO L85 PathProgramCache]: Analyzing trace with hash -414978194, now seen corresponding path program 1 times [2024-09-12 18:27:04,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:04,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417308934] [2024-09-12 18:27:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:04,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:27:04,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092845189] [2024-09-12 18:27:04,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:04,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:04,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:04,897 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:27:04,898 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 18:27:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:04,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:27:04,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:05,130 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:27:05,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:27:05,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:05,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417308934] [2024-09-12 18:27:05,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:27:05,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092845189] [2024-09-12 18:27:05,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092845189] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:27:05,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:27:05,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2024-09-12 18:27:05,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450039913] [2024-09-12 18:27:05,713 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:05,714 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:27:05,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:05,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:27:05,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:27:05,714 INFO L87 Difference]: Start difference. First operand 1844 states and 2466 transitions. Second operand has 17 states, 16 states have (on average 9.25) internal successors, (148), 17 states have internal predecessors, (148), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:27:15,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:15,410 INFO L93 Difference]: Finished difference Result 2355 states and 3137 transitions. [2024-09-12 18:27:15,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:27:15,411 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 9.25) internal successors, (148), 17 states have internal predecessors, (148), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 86 [2024-09-12 18:27:15,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:15,416 INFO L225 Difference]: With dead ends: 2355 [2024-09-12 18:27:15,416 INFO L226 Difference]: Without dead ends: 2352 [2024-09-12 18:27:15,416 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=268, Invalid=854, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:27:15,417 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 977 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:15,417 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 479 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-09-12 18:27:15,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2024-09-12 18:27:17,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2121. [2024-09-12 18:27:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 2024 states have (on average 1.3374505928853755) internal successors, (2707), 2055 states have internal predecessors, (2707), 61 states have call successors, (61), 6 states have call predecessors, (61), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 18:27:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2827 transitions. [2024-09-12 18:27:17,172 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2827 transitions. Word has length 86 [2024-09-12 18:27:17,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:17,172 INFO L474 AbstractCegarLoop]: Abstraction has 2121 states and 2827 transitions. [2024-09-12 18:27:17,172 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 9.25) internal successors, (148), 17 states have internal predecessors, (148), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:27:17,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2827 transitions. [2024-09-12 18:27:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 18:27:17,173 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:17,173 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:17,186 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-09-12 18:27:17,373 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-09-12 18:27:17,373 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:27:17,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:17,374 INFO L85 PathProgramCache]: Analyzing trace with hash 774563430, now seen corresponding path program 1 times [2024-09-12 18:27:17,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:17,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091079911] [2024-09-12 18:27:17,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:17,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:27:17,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1320036103] [2024-09-12 18:27:17,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:17,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:17,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:17,386 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:27:17,387 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 18:27:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:17,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-09-12 18:27:17,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:27:17,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:20,129 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:27:20,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:20,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091079911] [2024-09-12 18:27:20,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:27:20,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320036103] [2024-09-12 18:27:20,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320036103] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:27:20,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:27:20,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-09-12 18:27:20,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584008452] [2024-09-12 18:27:20,130 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:20,130 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 18:27:20,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:20,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 18:27:20,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=877, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 18:27:20,131 INFO L87 Difference]: Start difference. First operand 2121 states and 2827 transitions. Second operand has 33 states, 32 states have (on average 4.8125) internal successors, (154), 33 states have internal predecessors, (154), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:27:32,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:32,080 INFO L93 Difference]: Finished difference Result 2137 states and 2845 transitions. [2024-09-12 18:27:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 18:27:32,080 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.8125) internal successors, (154), 33 states have internal predecessors, (154), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 88 [2024-09-12 18:27:32,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:32,084 INFO L225 Difference]: With dead ends: 2137 [2024-09-12 18:27:32,085 INFO L226 Difference]: Without dead ends: 2136 [2024-09-12 18:27:32,085 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=507, Invalid=2573, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 18:27:32,085 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 394 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:32,086 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 405 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-09-12 18:27:32,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2024-09-12 18:27:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2121. [2024-09-12 18:27:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 2024 states have (on average 1.3369565217391304) internal successors, (2706), 2055 states have internal predecessors, (2706), 61 states have call successors, (61), 6 states have call predecessors, (61), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 18:27:33,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2826 transitions. [2024-09-12 18:27:33,862 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2826 transitions. Word has length 88 [2024-09-12 18:27:33,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:33,863 INFO L474 AbstractCegarLoop]: Abstraction has 2121 states and 2826 transitions. [2024-09-12 18:27:33,863 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.8125) internal successors, (154), 33 states have internal predecessors, (154), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:27:33,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2826 transitions. [2024-09-12 18:27:33,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 18:27:33,863 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:33,864 INFO L216 NwaCegarLoop]: trace histogram [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, 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 18:27:33,876 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-09-12 18:27:34,064 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-09-12 18:27:34,064 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:27:34,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:34,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1620414010, now seen corresponding path program 1 times [2024-09-12 18:27:34,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:34,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123458171] [2024-09-12 18:27:34,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:34,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:27:34,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239123723] [2024-09-12 18:27:34,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:34,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:34,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:34,076 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:27:34,076 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 18:27:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:27:34,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:27:34,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:35,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:35,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123458171] [2024-09-12 18:27:35,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:27:35,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239123723] [2024-09-12 18:27:35,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239123723] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:27:35,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:27:35,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:27:35,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782137779] [2024-09-12 18:27:35,105 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:35,105 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:27:35,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:35,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:27:35,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=385, Unknown=1, NotChecked=0, Total=462 [2024-09-12 18:27:35,106 INFO L87 Difference]: Start difference. First operand 2121 states and 2826 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:27:37,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:37,430 INFO L93 Difference]: Finished difference Result 2147 states and 2854 transitions. [2024-09-12 18:27:37,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:27:37,431 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 89 [2024-09-12 18:27:37,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:37,435 INFO L225 Difference]: With dead ends: 2147 [2024-09-12 18:27:37,435 INFO L226 Difference]: Without dead ends: 2145 [2024-09-12 18:27:37,436 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=491, Unknown=1, NotChecked=0, Total=600 [2024-09-12 18:27:37,436 INFO L434 NwaCegarLoop]: 133 mSDtfsCounter, 112 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:37,436 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 839 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:27:37,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2024-09-12 18:27:39,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2125. [2024-09-12 18:27:39,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 2028 states have (on average 1.336785009861933) internal successors, (2711), 2059 states have internal predecessors, (2711), 61 states have call successors, (61), 6 states have call predecessors, (61), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 18:27:39,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 2831 transitions. [2024-09-12 18:27:39,202 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 2831 transitions. Word has length 89 [2024-09-12 18:27:39,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:39,202 INFO L474 AbstractCegarLoop]: Abstraction has 2125 states and 2831 transitions. [2024-09-12 18:27:39,202 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 12 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:27:39,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:39,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 2831 transitions. [2024-09-12 18:27:39,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 18:27:39,203 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:39,203 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:39,216 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-09-12 18:27:39,403 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:39,404 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:27:39,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:39,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1758337278, now seen corresponding path program 1 times [2024-09-12 18:27:39,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:39,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465006034] [2024-09-12 18:27:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:39,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:39,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:27:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:39,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:27:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:39,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:27:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:39,496 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:27:39,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:39,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465006034] [2024-09-12 18:27:39,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465006034] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:27:39,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700490988] [2024-09-12 18:27:39,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:39,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:39,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:39,498 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:27:39,500 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 18:27:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:39,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:27:39,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:39,727 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:27:39,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:39,911 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:27:39,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700490988] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:27:39,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:27:39,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-09-12 18:27:39,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524126606] [2024-09-12 18:27:39,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:39,912 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 18:27:39,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:39,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 18:27:39,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:27:39,913 INFO L87 Difference]: Start difference. First operand 2125 states and 2831 transitions. Second operand has 23 states, 22 states have (on average 10.045454545454545) internal successors, (221), 23 states have internal predecessors, (221), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:27:42,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:42,278 INFO L93 Difference]: Finished difference Result 2144 states and 2851 transitions. [2024-09-12 18:27:42,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:27:42,278 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 10.045454545454545) internal successors, (221), 23 states have internal predecessors, (221), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 89 [2024-09-12 18:27:42,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:42,283 INFO L225 Difference]: With dead ends: 2144 [2024-09-12 18:27:42,283 INFO L226 Difference]: Without dead ends: 2143 [2024-09-12 18:27:42,283 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:27:42,284 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 279 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:42,284 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 768 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:27:42,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2024-09-12 18:27:44,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2132. [2024-09-12 18:27:44,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 2035 states have (on average 1.3356265356265355) internal successors, (2718), 2066 states have internal predecessors, (2718), 61 states have call successors, (61), 6 states have call predecessors, (61), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 18:27:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2838 transitions. [2024-09-12 18:27:44,066 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2838 transitions. Word has length 89 [2024-09-12 18:27:44,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:44,066 INFO L474 AbstractCegarLoop]: Abstraction has 2132 states and 2838 transitions. [2024-09-12 18:27:44,066 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 10.045454545454545) internal successors, (221), 23 states have internal predecessors, (221), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:27:44,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:44,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2838 transitions. [2024-09-12 18:27:44,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-09-12 18:27:44,067 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:44,067 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:27:44,080 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-12 18:27:44,267 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:44,267 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:27:44,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:44,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1306773170, now seen corresponding path program 1 times [2024-09-12 18:27:44,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:44,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596111791] [2024-09-12 18:27:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:44,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:27:44,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130521608] [2024-09-12 18:27:44,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:44,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:44,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:44,278 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:27:44,293 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 18:27:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:44,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 18:27:44,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:44,674 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:27:44,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:27:46,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:46,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596111791] [2024-09-12 18:27:46,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:27:46,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130521608] [2024-09-12 18:27:46,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130521608] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:27:46,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:27:46,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-09-12 18:27:46,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461973600] [2024-09-12 18:27:46,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:46,045 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:27:46,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:46,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:27:46,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:27:46,046 INFO L87 Difference]: Start difference. First operand 2132 states and 2838 transitions. Second operand has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:28:06,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:06,590 INFO L93 Difference]: Finished difference Result 2270 states and 3011 transitions. [2024-09-12 18:28:06,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-12 18:28:06,592 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 90 [2024-09-12 18:28:06,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:06,596 INFO L225 Difference]: With dead ends: 2270 [2024-09-12 18:28:06,596 INFO L226 Difference]: Without dead ends: 2266 [2024-09-12 18:28:06,597 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=517, Invalid=2675, Unknown=0, NotChecked=0, Total=3192 [2024-09-12 18:28:06,597 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 712 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:06,597 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 480 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2024-09-12 18:28:06,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2024-09-12 18:28:08,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 2149. [2024-09-12 18:28:08,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2149 states, 2052 states have (on average 1.331384015594542) internal successors, (2732), 2083 states have internal predecessors, (2732), 61 states have call successors, (61), 6 states have call predecessors, (61), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 18:28:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 2852 transitions. [2024-09-12 18:28:08,427 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 2852 transitions. Word has length 90 [2024-09-12 18:28:08,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:08,427 INFO L474 AbstractCegarLoop]: Abstraction has 2149 states and 2852 transitions. [2024-09-12 18:28:08,428 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:28:08,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:08,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 2852 transitions. [2024-09-12 18:28:08,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 18:28:08,428 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:08,428 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2024-09-12 18:28:08,442 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-09-12 18:28:08,629 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-09-12 18:28:08,629 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:28:08,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:08,629 INFO L85 PathProgramCache]: Analyzing trace with hash -161039922, now seen corresponding path program 1 times [2024-09-12 18:28:08,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:08,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604294381] [2024-09-12 18:28:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:08,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:08,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891818997] [2024-09-12 18:28:08,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:08,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:08,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:08,641 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:28:08,642 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 18:28:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:08,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:28:08,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:09,026 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:28:09,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:28:10,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:10,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604294381] [2024-09-12 18:28:10,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:10,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891818997] [2024-09-12 18:28:10,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891818997] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:28:10,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:28:10,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-09-12 18:28:10,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909631447] [2024-09-12 18:28:10,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:10,209 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:28:10,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:10,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:28:10,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:28:10,209 INFO L87 Difference]: Start difference. First operand 2149 states and 2852 transitions. Second operand has 18 states, 17 states have (on average 9.294117647058824) internal successors, (158), 18 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:28:27,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:27,302 INFO L93 Difference]: Finished difference Result 2211 states and 2924 transitions. [2024-09-12 18:28:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:28:27,303 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.294117647058824) internal successors, (158), 18 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 91 [2024-09-12 18:28:27,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:27,307 INFO L225 Difference]: With dead ends: 2211 [2024-09-12 18:28:27,307 INFO L226 Difference]: Without dead ends: 2208 [2024-09-12 18:28:27,308 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=357, Invalid=1203, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 18:28:27,308 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 681 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:27,308 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 443 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2024-09-12 18:28:27,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2024-09-12 18:28:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2159. [2024-09-12 18:28:29,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2159 states, 2062 states have (on average 1.328322017458778) internal successors, (2739), 2093 states have internal predecessors, (2739), 61 states have call successors, (61), 6 states have call predecessors, (61), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 18:28:29,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2159 states to 2159 states and 2859 transitions. [2024-09-12 18:28:29,184 INFO L78 Accepts]: Start accepts. Automaton has 2159 states and 2859 transitions. Word has length 91 [2024-09-12 18:28:29,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:29,184 INFO L474 AbstractCegarLoop]: Abstraction has 2159 states and 2859 transitions. [2024-09-12 18:28:29,185 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.294117647058824) internal successors, (158), 18 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:28:29,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2159 states and 2859 transitions. [2024-09-12 18:28:29,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 18:28:29,185 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:29,185 INFO L216 NwaCegarLoop]: trace histogram [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, 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 18:28:29,200 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-09-12 18:28:29,386 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:29,386 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:28:29,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:29,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1855262532, now seen corresponding path program 1 times [2024-09-12 18:28:29,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:29,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927359116] [2024-09-12 18:28:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:29,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:29,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676661953] [2024-09-12 18:28:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:29,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:29,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:29,396 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:28:29,396 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:28:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:29,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:28:29,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:29,628 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:28:29,628 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:30,113 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:28:30,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:30,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927359116] [2024-09-12 18:28:30,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:30,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676661953] [2024-09-12 18:28:30,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676661953] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:28:30,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:28:30,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-09-12 18:28:30,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746618170] [2024-09-12 18:28:30,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:30,114 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 18:28:30,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:30,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 18:28:30,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:28:30,115 INFO L87 Difference]: Start difference. First operand 2159 states and 2859 transitions. Second operand has 20 states, 19 states have (on average 8.105263157894736) internal successors, (154), 20 states have internal predecessors, (154), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:28:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:37,175 INFO L93 Difference]: Finished difference Result 2709 states and 3612 transitions. [2024-09-12 18:28:37,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 18:28:37,175 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.105263157894736) internal successors, (154), 20 states have internal predecessors, (154), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 91 [2024-09-12 18:28:37,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:37,181 INFO L225 Difference]: With dead ends: 2709 [2024-09-12 18:28:37,182 INFO L226 Difference]: Without dead ends: 2707 [2024-09-12 18:28:37,183 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=499, Invalid=3161, Unknown=0, NotChecked=0, Total=3660 [2024-09-12 18:28:37,183 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 477 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 3137 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 3177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:37,184 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1047 Invalid, 3177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3137 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-09-12 18:28:37,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2024-09-12 18:28:39,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 2559. [2024-09-12 18:28:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2559 states, 2451 states have (on average 1.3443492452060384) internal successors, (3295), 2482 states have internal predecessors, (3295), 72 states have call successors, (72), 6 states have call predecessors, (72), 4 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-09-12 18:28:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 3437 transitions. [2024-09-12 18:28:39,433 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 3437 transitions. Word has length 91 [2024-09-12 18:28:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:39,433 INFO L474 AbstractCegarLoop]: Abstraction has 2559 states and 3437 transitions. [2024-09-12 18:28:39,433 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.105263157894736) internal successors, (154), 20 states have internal predecessors, (154), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:28:39,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 3437 transitions. [2024-09-12 18:28:39,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 18:28:39,434 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:39,434 INFO L216 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:28:39,446 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-09-12 18:28:39,634 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:39,634 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:28:39,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:39,635 INFO L85 PathProgramCache]: Analyzing trace with hash 256961672, now seen corresponding path program 2 times [2024-09-12 18:28:39,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:39,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454562788] [2024-09-12 18:28:39,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:39,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:39,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418270681] [2024-09-12 18:28:39,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:28:39,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:39,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:39,648 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:28:39,649 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:28:39,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:28:39,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:28:39,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:28:39,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:39,896 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:28:39,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:40,393 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:28:40,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:40,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454562788] [2024-09-12 18:28:40,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:40,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418270681] [2024-09-12 18:28:40,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418270681] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:28:40,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:28:40,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-09-12 18:28:40,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386961635] [2024-09-12 18:28:40,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:40,394 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 18:28:40,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:40,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 18:28:40,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:28:40,394 INFO L87 Difference]: Start difference. First operand 2559 states and 3437 transitions. Second operand has 20 states, 19 states have (on average 8.31578947368421) internal successors, (158), 20 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:28:46,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:46,027 INFO L93 Difference]: Finished difference Result 2778 states and 3705 transitions. [2024-09-12 18:28:46,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-12 18:28:46,027 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.31578947368421) internal successors, (158), 20 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 93 [2024-09-12 18:28:46,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:46,033 INFO L225 Difference]: With dead ends: 2778 [2024-09-12 18:28:46,033 INFO L226 Difference]: Without dead ends: 2773 [2024-09-12 18:28:46,033 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=513, Invalid=2037, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 18:28:46,034 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 564 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:46,034 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 851 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-09-12 18:28:46,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2024-09-12 18:28:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2571. [2024-09-12 18:28:48,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2463 states have (on average 1.3304912708079577) internal successors, (3277), 2494 states have internal predecessors, (3277), 72 states have call successors, (72), 6 states have call predecessors, (72), 4 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-09-12 18:28:48,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3419 transitions. [2024-09-12 18:28:48,333 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3419 transitions. Word has length 93 [2024-09-12 18:28:48,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:48,333 INFO L474 AbstractCegarLoop]: Abstraction has 2571 states and 3419 transitions. [2024-09-12 18:28:48,334 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.31578947368421) internal successors, (158), 20 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:28:48,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:48,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3419 transitions. [2024-09-12 18:28:48,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 18:28:48,335 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:48,335 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:28:48,342 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-09-12 18:28:48,535 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2024-09-12 18:28:48,535 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:28:48,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1314027654, now seen corresponding path program 1 times [2024-09-12 18:28:48,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:48,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378347758] [2024-09-12 18:28:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:48,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:48,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966903656] [2024-09-12 18:28:48,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:48,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:48,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:48,547 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:28:48,548 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 18:28:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:48,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:28:48,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:48,962 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:28:48,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:28:49,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:49,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378347758] [2024-09-12 18:28:49,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:49,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966903656] [2024-09-12 18:28:49,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966903656] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:28:49,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:28:49,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-09-12 18:28:49,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140348859] [2024-09-12 18:28:49,338 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:49,338 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 18:28:49,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:49,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 18:28:49,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:28:49,339 INFO L87 Difference]: Start difference. First operand 2571 states and 3419 transitions. Second operand has 25 states, 24 states have (on average 6.791666666666667) internal successors, (163), 25 states have internal predecessors, (163), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:28:53,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:53,723 INFO L93 Difference]: Finished difference Result 2588 states and 3440 transitions. [2024-09-12 18:28:53,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 18:28:53,723 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.791666666666667) internal successors, (163), 25 states have internal predecessors, (163), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 93 [2024-09-12 18:28:53,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:53,729 INFO L225 Difference]: With dead ends: 2588 [2024-09-12 18:28:53,729 INFO L226 Difference]: Without dead ends: 2587 [2024-09-12 18:28:53,730 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=251, Invalid=1155, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:28:53,730 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 290 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:53,730 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 458 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-09-12 18:28:53,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2024-09-12 18:28:56,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2584. [2024-09-12 18:28:56,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2476 states have (on average 1.3303715670436187) internal successors, (3294), 2507 states have internal predecessors, (3294), 72 states have call successors, (72), 6 states have call predecessors, (72), 4 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-09-12 18:28:56,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3436 transitions. [2024-09-12 18:28:56,039 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3436 transitions. Word has length 93 [2024-09-12 18:28:56,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:56,039 INFO L474 AbstractCegarLoop]: Abstraction has 2584 states and 3436 transitions. [2024-09-12 18:28:56,040 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.791666666666667) internal successors, (163), 25 states have internal predecessors, (163), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 18:28:56,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:56,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3436 transitions. [2024-09-12 18:28:56,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:28:56,041 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:56,041 INFO L216 NwaCegarLoop]: trace histogram [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, 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 18:28:56,055 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-09-12 18:28:56,241 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:56,241 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:28:56,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:56,242 INFO L85 PathProgramCache]: Analyzing trace with hash 217050560, now seen corresponding path program 1 times [2024-09-12 18:28:56,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:56,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88861369] [2024-09-12 18:28:56,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:56,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:56,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:28:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:56,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:28:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:56,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:28:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 38 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:28:56,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:56,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88861369] [2024-09-12 18:28:56,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88861369] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:28:56,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765572796] [2024-09-12 18:28:56,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:56,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:56,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:56,296 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:28:56,297 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-09-12 18:28:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:56,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:28:56,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 38 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:28:56,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 53 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:28:56,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765572796] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:28:56,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:28:56,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 18:28:56,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402130388] [2024-09-12 18:28:56,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:56,525 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:28:56,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:56,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:28:56,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:28:56,525 INFO L87 Difference]: Start difference. First operand 2584 states and 3436 transitions. Second operand has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:28:59,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:59,752 INFO L93 Difference]: Finished difference Result 2970 states and 3900 transitions. [2024-09-12 18:28:59,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:28:59,753 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 95 [2024-09-12 18:28:59,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:59,758 INFO L225 Difference]: With dead ends: 2970 [2024-09-12 18:28:59,758 INFO L226 Difference]: Without dead ends: 2968 [2024-09-12 18:28:59,758 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:28:59,758 INFO L434 NwaCegarLoop]: 202 mSDtfsCounter, 246 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:59,758 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 947 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:28:59,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2024-09-12 18:29:02,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2584. [2024-09-12 18:29:02,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2476 states have (on average 1.3154281098546041) internal successors, (3257), 2507 states have internal predecessors, (3257), 72 states have call successors, (72), 6 states have call predecessors, (72), 4 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-09-12 18:29:02,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3399 transitions. [2024-09-12 18:29:02,106 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3399 transitions. Word has length 95 [2024-09-12 18:29:02,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:29:02,107 INFO L474 AbstractCegarLoop]: Abstraction has 2584 states and 3399 transitions. [2024-09-12 18:29:02,107 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:29:02,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:29:02,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3399 transitions. [2024-09-12 18:29:02,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 18:29:02,107 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:29:02,108 INFO L216 NwaCegarLoop]: trace histogram [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, 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 18:29:02,124 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-09-12 18:29:02,308 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:29:02,308 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:29:02,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:29:02,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1800153288, now seen corresponding path program 1 times [2024-09-12 18:29:02,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:29:02,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806261141] [2024-09-12 18:29:02,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:29:02,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:29:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:29:02,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2002776388] [2024-09-12 18:29:02,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:29:02,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:29:02,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:29:02,318 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:29:02,320 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-09-12 18:29:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:02,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:29:02,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:29:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 59 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:29:03,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:29:07,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:29:07,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806261141] [2024-09-12 18:29:07,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:29:07,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002776388] [2024-09-12 18:29:07,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002776388] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:29:07,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:29:07,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 18:29:07,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224130524] [2024-09-12 18:29:07,572 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:29:07,572 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:29:07,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:29:07,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:29:07,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:29:07,573 INFO L87 Difference]: Start difference. First operand 2584 states and 3399 transitions. Second operand has 15 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:29:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:29:13,004 INFO L93 Difference]: Finished difference Result 2610 states and 3414 transitions. [2024-09-12 18:29:13,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:29:13,004 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 96 [2024-09-12 18:29:13,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:29:13,010 INFO L225 Difference]: With dead ends: 2610 [2024-09-12 18:29:13,010 INFO L226 Difference]: Without dead ends: 2607 [2024-09-12 18:29:13,011 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=213, Invalid=1119, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 18:29:13,011 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 323 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:29:13,011 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 730 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1862 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-09-12 18:29:13,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2024-09-12 18:29:15,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2584. [2024-09-12 18:29:15,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2476 states have (on average 1.3117932148626819) internal successors, (3248), 2507 states have internal predecessors, (3248), 72 states have call successors, (72), 6 states have call predecessors, (72), 4 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-09-12 18:29:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3390 transitions. [2024-09-12 18:29:15,413 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3390 transitions. Word has length 96 [2024-09-12 18:29:15,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:29:15,413 INFO L474 AbstractCegarLoop]: Abstraction has 2584 states and 3390 transitions. [2024-09-12 18:29:15,413 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:29:15,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:29:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3390 transitions. [2024-09-12 18:29:15,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 18:29:15,414 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:29:15,414 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:15,426 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-09-12 18:29:15,614 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-09-12 18:29:15,614 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2024-09-12 18:29:15,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:29:15,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2014514488, now seen corresponding path program 1 times [2024-09-12 18:29:15,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:29:15,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97907778] [2024-09-12 18:29:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:29:15,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:29:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:29:15,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987753343] [2024-09-12 18:29:15,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:29:15,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:29:15,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:29:15,626 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:29:15,627 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-09-12 18:29:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:15,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 18:29:15,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:29:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:29:16,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:29:16,881 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:29:16,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:29:16,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97907778] [2024-09-12 18:29:16,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:29:16,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987753343] [2024-09-12 18:29:16,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987753343] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:29:16,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:29:16,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 30 [2024-09-12 18:29:16,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316461842] [2024-09-12 18:29:16,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:29:16,882 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-12 18:29:16,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:29:16,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-12 18:29:16,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:29:16,883 INFO L87 Difference]: Start difference. First operand 2584 states and 3390 transitions. Second operand has 30 states, 30 states have (on average 5.533333333333333) internal successors, (166), 27 states have internal predecessors, (166), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5)