./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9439004819e2e34c2ab2e87057bca89732394fc53eb02ecb90192bb8fac7667a --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 18:51:56,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:51:56,313 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:51:56,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:51:56,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:51:56,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:51:56,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:51:56,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:51:56,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:51:56,350 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:51:56,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:51:56,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:51:56,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:51:56,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:51:56,355 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:51:56,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:51:56,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:51:56,355 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:51:56,356 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:51:56,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:51:56,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:51:56,357 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:51:56,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:51:56,358 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:51:56,358 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:51:56,358 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:51:56,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:51:56,359 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:51:56,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:51:56,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:51:56,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:51:56,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:51:56,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:51:56,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:51:56,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:51:56,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:51:56,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:51:56,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:51:56,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:51:56,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:51:56,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:51:56,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:51:56,363 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9439004819e2e34c2ab2e87057bca89732394fc53eb02ecb90192bb8fac7667a Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:51:56,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:51:56,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:51:56,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:51:56,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:51:56,683 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:51:56,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c [2024-09-12 18:51:58,139 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:51:58,330 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:51:58,331 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c [2024-09-12 18:51:58,337 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/5a6fda35e/5474ca0691bf49ca855530c0c2b7ef50/FLAG5590ba4e5 [2024-09-12 18:51:58,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/5a6fda35e/5474ca0691bf49ca855530c0c2b7ef50 [2024-09-12 18:51:58,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:51:58,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:51:58,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:51:58,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:51:58,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:51:58,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:58,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d27ce82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58, skipping insertion in model container [2024-09-12 18:51:58,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:58,750 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:51:58,888 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c[490,503] [2024-09-12 18:51:58,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:51:58,938 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:51:58,953 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c[490,503] [2024-09-12 18:51:58,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:51:58,990 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:51:58,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58 WrapperNode [2024-09-12 18:51:58,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:51:58,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:51:58,992 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:51:58,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:51:58,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,023 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:51:59,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:51:59,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:51:59,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:51:59,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:51:59,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,038 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,054 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 18:51:59,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:51:59,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:51:59,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:51:59,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:51:59,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (1/1) ... [2024-09-12 18:51:59,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:51:59,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:59,111 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 18:51:59,117 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 18:51:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:51:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:51:59,166 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:51:59,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:51:59,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:51:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:51:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:51:59,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:51:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:51:59,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:51:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:51:59,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:51:59,236 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:51:59,239 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:52:00,302 INFO L? ?]: Removed 195 outVars from TransFormulas that were not future-live. [2024-09-12 18:52:00,302 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:52:00,333 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:52:00,335 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 18:52:00,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:52:00 BoogieIcfgContainer [2024-09-12 18:52:00,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:52:00,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:52:00,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:52:00,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:52:00,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:51:58" (1/3) ... [2024-09-12 18:52:00,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68cb9320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:52:00, skipping insertion in model container [2024-09-12 18:52:00,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:58" (2/3) ... [2024-09-12 18:52:00,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68cb9320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:52:00, skipping insertion in model container [2024-09-12 18:52:00,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:52:00" (3/3) ... [2024-09-12 18:52:00,346 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound1.c [2024-09-12 18:52:00,361 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:52:00,362 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 65 error locations. [2024-09-12 18:52:00,428 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:52:00,437 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;@21751a66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:52:00,438 INFO L337 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-09-12 18:52:00,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 82 states have (on average 1.8902439024390243) internal successors, (155), 148 states have internal predecessors, (155), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:52:00,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 18:52:00,449 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:00,450 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:00,451 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:00,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:00,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1486282811, now seen corresponding path program 1 times [2024-09-12 18:52:00,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:00,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398164742] [2024-09-12 18:52:00,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:00,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:00,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:00,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:00,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:00,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:00,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:52:00,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:00,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398164742] [2024-09-12 18:52:00,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398164742] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:00,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:00,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:52:00,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044426784] [2024-09-12 18:52:00,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:00,660 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:52:00,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:00,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:52:00,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:52:00,685 INFO L87 Difference]: Start difference. First operand has 166 states, 82 states have (on average 1.8902439024390243) internal successors, (155), 148 states have internal predecessors, (155), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:52:00,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:00,744 INFO L93 Difference]: Finished difference Result 325 states and 371 transitions. [2024-09-12 18:52:00,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:52:00,746 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2024-09-12 18:52:00,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:00,754 INFO L225 Difference]: With dead ends: 325 [2024-09-12 18:52:00,755 INFO L226 Difference]: Without dead ends: 161 [2024-09-12 18:52:00,760 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:52:00,765 INFO L434 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:00,766 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:52:00,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-09-12 18:52:00,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-09-12 18:52:00,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 80 states have (on average 1.825) internal successors, (146), 145 states have internal predecessors, (146), 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 18:52:00,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 172 transitions. [2024-09-12 18:52:00,839 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 172 transitions. Word has length 28 [2024-09-12 18:52:00,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:00,840 INFO L474 AbstractCegarLoop]: Abstraction has 161 states and 172 transitions. [2024-09-12 18:52:00,841 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:52:00,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:00,842 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 172 transitions. [2024-09-12 18:52:00,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 18:52:00,844 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:00,844 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:00,844 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:52:00,844 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:00,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:00,845 INFO L85 PathProgramCache]: Analyzing trace with hash 237940991, now seen corresponding path program 1 times [2024-09-12 18:52:00,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:00,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918672663] [2024-09-12 18:52:00,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:00,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:00,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140117592] [2024-09-12 18:52:00,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:00,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:00,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:00,893 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 18:52:00,895 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 18:52:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:52:01,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:52:01,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:01,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:01,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918672663] [2024-09-12 18:52:01,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:01,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140117592] [2024-09-12 18:52:01,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140117592] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:01,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:01,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:52:01,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480798091] [2024-09-12 18:52:01,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:01,157 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:52:01,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:01,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:52:01,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:52:01,159 INFO L87 Difference]: Start difference. First operand 161 states and 172 transitions. Second operand has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:52:01,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:01,501 INFO L93 Difference]: Finished difference Result 161 states and 172 transitions. [2024-09-12 18:52:01,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:52:01,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 28 [2024-09-12 18:52:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:01,504 INFO L225 Difference]: With dead ends: 161 [2024-09-12 18:52:01,506 INFO L226 Difference]: Without dead ends: 159 [2024-09-12 18:52:01,507 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:52:01,508 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 291 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:01,509 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 247 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:01,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-09-12 18:52:01,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-09-12 18:52:01,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 80 states have (on average 1.8) internal successors, (144), 143 states have internal predecessors, (144), 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 18:52:01,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 170 transitions. [2024-09-12 18:52:01,544 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 170 transitions. Word has length 28 [2024-09-12 18:52:01,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:01,546 INFO L474 AbstractCegarLoop]: Abstraction has 159 states and 170 transitions. [2024-09-12 18:52:01,546 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:52:01,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:01,547 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 170 transitions. [2024-09-12 18:52:01,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:52:01,548 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:01,548 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:01,564 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 18:52:01,752 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:01,753 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:01,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:01,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1213763818, now seen corresponding path program 1 times [2024-09-12 18:52:01,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:01,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468781859] [2024-09-12 18:52:01,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:01,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:01,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447782512] [2024-09-12 18:52:01,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:01,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:01,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:01,783 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 18:52:01,785 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 18:52:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:52:01,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:52:01,934 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:52:02,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:02,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468781859] [2024-09-12 18:52:02,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:02,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447782512] [2024-09-12 18:52:02,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447782512] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:02,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:52:02,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-09-12 18:52:02,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974160679] [2024-09-12 18:52:02,354 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:02,354 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:52:02,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:52:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:02,358 INFO L87 Difference]: Start difference. First operand 159 states and 170 transitions. Second operand has 11 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 18:52:03,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:03,241 INFO L93 Difference]: Finished difference Result 159 states and 170 transitions. [2024-09-12 18:52:03,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:52:03,242 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 5 states have call successors, (9) Word has length 29 [2024-09-12 18:52:03,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:03,246 INFO L225 Difference]: With dead ends: 159 [2024-09-12 18:52:03,246 INFO L226 Difference]: Without dead ends: 158 [2024-09-12 18:52:03,246 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:52:03,247 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 104 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:03,248 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 335 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:52:03,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-09-12 18:52:03,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-09-12 18:52:03,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 80 states have (on average 1.7875) internal successors, (143), 142 states have internal predecessors, (143), 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 18:52:03,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 169 transitions. [2024-09-12 18:52:03,283 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 169 transitions. Word has length 29 [2024-09-12 18:52:03,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:03,284 INFO L474 AbstractCegarLoop]: Abstraction has 158 states and 169 transitions. [2024-09-12 18:52:03,284 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 18:52:03,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:03,285 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 169 transitions. [2024-09-12 18:52:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 18:52:03,286 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:03,286 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:03,303 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 18:52:03,487 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:03,488 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:03,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:03,488 INFO L85 PathProgramCache]: Analyzing trace with hash 694054053, now seen corresponding path program 1 times [2024-09-12 18:52:03,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:03,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8279734] [2024-09-12 18:52:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:03,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,745 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:03,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:03,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8279734] [2024-09-12 18:52:03,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8279734] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:03,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001208110] [2024-09-12 18:52:03,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:03,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:03,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:03,748 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 18:52:03,750 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 18:52:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:52:03,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:03,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:03,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001208110] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:03,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:03,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-09-12 18:52:03,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78713216] [2024-09-12 18:52:03,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:03,835 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:52:03,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:03,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:52:03,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:03,836 INFO L87 Difference]: Start difference. First operand 158 states and 169 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:04,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:04,298 INFO L93 Difference]: Finished difference Result 265 states and 299 transitions. [2024-09-12 18:52:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:52:04,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 44 [2024-09-12 18:52:04,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:04,301 INFO L225 Difference]: With dead ends: 265 [2024-09-12 18:52:04,301 INFO L226 Difference]: Without dead ends: 255 [2024-09-12 18:52:04,301 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:04,304 INFO L434 NwaCegarLoop]: 125 mSDtfsCounter, 90 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:04,304 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 232 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:04,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-09-12 18:52:04,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 211. [2024-09-12 18:52:04,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 129 states have (on average 1.7674418604651163) internal successors, (228), 190 states have internal predecessors, (228), 18 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:52:04,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2024-09-12 18:52:04,347 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 44 [2024-09-12 18:52:04,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:04,348 INFO L474 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2024-09-12 18:52:04,348 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:04,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:04,349 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2024-09-12 18:52:04,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 18:52:04,349 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:04,350 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:04,366 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 18:52:04,550 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:04,551 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:04,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:04,551 INFO L85 PathProgramCache]: Analyzing trace with hash 40837635, now seen corresponding path program 1 times [2024-09-12 18:52:04,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:04,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577966332] [2024-09-12 18:52:04,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:04,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:04,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367670798] [2024-09-12 18:52:04,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:04,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:04,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:04,571 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 18:52:04,572 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 18:52:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:04,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:52:04,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:04,626 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:04,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:04,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:04,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577966332] [2024-09-12 18:52:04,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:04,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367670798] [2024-09-12 18:52:04,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367670798] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:04,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:04,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:52:04,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856012511] [2024-09-12 18:52:04,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:04,628 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:52:04,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:04,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:52:04,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:52:04,630 INFO L87 Difference]: Start difference. First operand 211 states and 262 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 18:52:04,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:04,803 INFO L93 Difference]: Finished difference Result 357 states and 458 transitions. [2024-09-12 18:52:04,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:52:04,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2024-09-12 18:52:04,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:04,807 INFO L225 Difference]: With dead ends: 357 [2024-09-12 18:52:04,807 INFO L226 Difference]: Without dead ends: 349 [2024-09-12 18:52:04,808 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 18:52:04,809 INFO L434 NwaCegarLoop]: 148 mSDtfsCounter, 83 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:04,809 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 286 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:52:04,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-09-12 18:52:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 310. [2024-09-12 18:52:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 220 states have (on average 1.768181818181818) internal successors, (389), 281 states have internal predecessors, (389), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:04,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 439 transitions. [2024-09-12 18:52:04,847 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 439 transitions. Word has length 45 [2024-09-12 18:52:04,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:04,847 INFO L474 AbstractCegarLoop]: Abstraction has 310 states and 439 transitions. [2024-09-12 18:52:04,847 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 18:52:04,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:04,848 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 439 transitions. [2024-09-12 18:52:04,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:52:04,850 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:04,851 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:04,868 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 18:52:05,054 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:05,055 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:05,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1266020391, now seen corresponding path program 1 times [2024-09-12 18:52:05,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:05,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979799070] [2024-09-12 18:52:05,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:05,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:05,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:05,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:05,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:05,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:05,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:05,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:05,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:05,241 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:05,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:05,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979799070] [2024-09-12 18:52:05,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979799070] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:05,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435211271] [2024-09-12 18:52:05,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:05,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:05,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:05,246 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 18:52:05,248 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 18:52:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:05,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:05,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:05,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:05,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435211271] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:05,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:05,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 18:52:05,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360160791] [2024-09-12 18:52:05,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:05,373 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:05,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:05,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:05,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:05,374 INFO L87 Difference]: Start difference. First operand 310 states and 439 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:05,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:05,911 INFO L93 Difference]: Finished difference Result 330 states and 463 transitions. [2024-09-12 18:52:05,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:05,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2024-09-12 18:52:05,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:05,914 INFO L225 Difference]: With dead ends: 330 [2024-09-12 18:52:05,914 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 18:52:05,914 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:05,915 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 60 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:05,915 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 218 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 18:52:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 311. [2024-09-12 18:52:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 221 states have (on average 1.7647058823529411) internal successors, (390), 282 states have internal predecessors, (390), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:05,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 440 transitions. [2024-09-12 18:52:05,945 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 440 transitions. Word has length 46 [2024-09-12 18:52:05,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:05,946 INFO L474 AbstractCegarLoop]: Abstraction has 311 states and 440 transitions. [2024-09-12 18:52:05,946 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:05,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:05,946 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 440 transitions. [2024-09-12 18:52:05,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:52:05,948 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:05,949 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:05,966 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 18:52:06,149 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:52:06,150 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:06,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:06,151 INFO L85 PathProgramCache]: Analyzing trace with hash 591926659, now seen corresponding path program 1 times [2024-09-12 18:52:06,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:06,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063090280] [2024-09-12 18:52:06,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:06,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,289 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:06,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:06,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063090280] [2024-09-12 18:52:06,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063090280] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:06,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5036944] [2024-09-12 18:52:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:06,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:06,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:06,293 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 18:52:06,294 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 18:52:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:06,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:06,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:06,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5036944] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:06,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:06,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 18:52:06,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263985162] [2024-09-12 18:52:06,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:06,397 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:06,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:06,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:06,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:06,397 INFO L87 Difference]: Start difference. First operand 311 states and 440 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:06,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:06,951 INFO L93 Difference]: Finished difference Result 330 states and 462 transitions. [2024-09-12 18:52:06,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:06,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2024-09-12 18:52:06,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:06,954 INFO L225 Difference]: With dead ends: 330 [2024-09-12 18:52:06,954 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 18:52:06,955 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:06,956 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 59 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:06,957 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 219 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:06,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 18:52:06,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 312. [2024-09-12 18:52:06,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 222 states have (on average 1.7612612612612613) internal successors, (391), 283 states have internal predecessors, (391), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:06,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 441 transitions. [2024-09-12 18:52:06,991 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 441 transitions. Word has length 47 [2024-09-12 18:52:06,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:06,991 INFO L474 AbstractCegarLoop]: Abstraction has 312 states and 441 transitions. [2024-09-12 18:52:06,992 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:06,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:06,992 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 441 transitions. [2024-09-12 18:52:06,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:52:06,993 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:06,993 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:07,010 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 18:52:07,193 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:07,193 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:07,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:07,194 INFO L85 PathProgramCache]: Analyzing trace with hash 590264325, now seen corresponding path program 1 times [2024-09-12 18:52:07,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:07,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920135380] [2024-09-12 18:52:07,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:07,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:07,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:07,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:07,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:07,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:07,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:07,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:07,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:07,342 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:07,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:07,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920135380] [2024-09-12 18:52:07,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920135380] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:07,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342360781] [2024-09-12 18:52:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:07,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:07,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:07,345 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 18:52:07,346 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 18:52:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:07,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:52:07,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:07,466 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:07,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:07,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342360781] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:07,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:07,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-09-12 18:52:07,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896151942] [2024-09-12 18:52:07,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:07,467 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:07,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:07,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:07,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:52:07,467 INFO L87 Difference]: Start difference. First operand 312 states and 441 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:52:08,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:08,522 INFO L93 Difference]: Finished difference Result 392 states and 461 transitions. [2024-09-12 18:52:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:52:08,522 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2024-09-12 18:52:08,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:08,525 INFO L225 Difference]: With dead ends: 392 [2024-09-12 18:52:08,525 INFO L226 Difference]: Without dead ends: 391 [2024-09-12 18:52:08,525 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:52:08,526 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 433 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:08,526 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 330 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:52:08,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-09-12 18:52:08,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 312. [2024-09-12 18:52:08,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 222 states have (on average 1.7567567567567568) internal successors, (390), 283 states have internal predecessors, (390), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:08,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 440 transitions. [2024-09-12 18:52:08,568 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 440 transitions. Word has length 47 [2024-09-12 18:52:08,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:08,568 INFO L474 AbstractCegarLoop]: Abstraction has 312 states and 440 transitions. [2024-09-12 18:52:08,569 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:52:08,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:08,569 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 440 transitions. [2024-09-12 18:52:08,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:52:08,570 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:08,570 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:08,587 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 18:52:08,770 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:08,771 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:08,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:08,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1169857449, now seen corresponding path program 1 times [2024-09-12 18:52:08,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:08,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117790364] [2024-09-12 18:52:08,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:08,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:08,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:08,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:08,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:08,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:08,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:08,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:08,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:08,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:08,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117790364] [2024-09-12 18:52:08,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117790364] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:08,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233681981] [2024-09-12 18:52:08,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:08,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:08,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:08,858 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 18:52:08,860 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 18:52:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:08,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:08,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:08,947 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:08,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:08,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233681981] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:08,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:08,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 18:52:08,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194926248] [2024-09-12 18:52:08,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:08,948 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:08,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:08,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:08,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:08,949 INFO L87 Difference]: Start difference. First operand 312 states and 440 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:10,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:10,084 INFO L93 Difference]: Finished difference Result 363 states and 470 transitions. [2024-09-12 18:52:10,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:10,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 48 [2024-09-12 18:52:10,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:10,087 INFO L225 Difference]: With dead ends: 363 [2024-09-12 18:52:10,087 INFO L226 Difference]: Without dead ends: 359 [2024-09-12 18:52:10,088 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:10,088 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 149 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:10,089 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 241 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:52:10,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-09-12 18:52:10,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 313. [2024-09-12 18:52:10,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.7309417040358743) internal successors, (386), 284 states have internal predecessors, (386), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:10,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 436 transitions. [2024-09-12 18:52:10,141 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 436 transitions. Word has length 48 [2024-09-12 18:52:10,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:10,143 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 436 transitions. [2024-09-12 18:52:10,143 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:10,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:10,143 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 436 transitions. [2024-09-12 18:52:10,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:52:10,144 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:10,144 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:10,163 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:10,344 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:10,345 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:10,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:10,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1118324981, now seen corresponding path program 1 times [2024-09-12 18:52:10,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:10,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623875971] [2024-09-12 18:52:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:10,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:10,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048332631] [2024-09-12 18:52:10,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:10,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:10,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:10,361 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 18:52:10,363 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 18:52:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:10,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:52:10,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:10,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:10,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:10,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623875971] [2024-09-12 18:52:10,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:10,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048332631] [2024-09-12 18:52:10,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048332631] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:10,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:10,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:52:10,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773009453] [2024-09-12 18:52:10,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:10,451 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:10,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:10,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:10,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:10,452 INFO L87 Difference]: Start difference. First operand 313 states and 436 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:52:11,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:11,261 INFO L93 Difference]: Finished difference Result 386 states and 454 transitions. [2024-09-12 18:52:11,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:52:11,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 48 [2024-09-12 18:52:11,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:11,263 INFO L225 Difference]: With dead ends: 386 [2024-09-12 18:52:11,263 INFO L226 Difference]: Without dead ends: 385 [2024-09-12 18:52:11,264 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 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 18:52:11,264 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 421 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:11,265 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 329 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:52:11,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-09-12 18:52:11,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 313. [2024-09-12 18:52:11,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.7264573991031391) internal successors, (385), 284 states have internal predecessors, (385), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 435 transitions. [2024-09-12 18:52:11,318 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 435 transitions. Word has length 48 [2024-09-12 18:52:11,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:11,319 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 435 transitions. [2024-09-12 18:52:11,319 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:52:11,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:11,319 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 435 transitions. [2024-09-12 18:52:11,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:52:11,320 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:11,320 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:11,338 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:52:11,521 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:52:11,521 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:11,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:11,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1905842757, now seen corresponding path program 1 times [2024-09-12 18:52:11,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:11,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382698455] [2024-09-12 18:52:11,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:11,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:11,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:11,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:11,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:11,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:11,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:11,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:11,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:11,627 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:11,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:11,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382698455] [2024-09-12 18:52:11,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382698455] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:11,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159088027] [2024-09-12 18:52:11,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:11,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:11,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:11,632 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 18:52:11,634 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 18:52:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:11,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:11,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:11,779 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:11,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:11,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159088027] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:11,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:11,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 18:52:11,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696248358] [2024-09-12 18:52:11,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:11,780 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:11,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:11,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:11,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:11,781 INFO L87 Difference]: Start difference. First operand 313 states and 435 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:12,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:12,872 INFO L93 Difference]: Finished difference Result 361 states and 463 transitions. [2024-09-12 18:52:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:12,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2024-09-12 18:52:12,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:12,875 INFO L225 Difference]: With dead ends: 361 [2024-09-12 18:52:12,875 INFO L226 Difference]: Without dead ends: 357 [2024-09-12 18:52:12,875 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:12,876 INFO L434 NwaCegarLoop]: 124 mSDtfsCounter, 96 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:12,876 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 295 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:52:12,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-09-12 18:52:12,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 314. [2024-09-12 18:52:12,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 224 states have (on average 1.7008928571428572) internal successors, (381), 285 states have internal predecessors, (381), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:12,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 431 transitions. [2024-09-12 18:52:12,932 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 431 transitions. Word has length 49 [2024-09-12 18:52:12,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:12,932 INFO L474 AbstractCegarLoop]: Abstraction has 314 states and 431 transitions. [2024-09-12 18:52:12,933 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:12,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:12,933 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 431 transitions. [2024-09-12 18:52:12,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 18:52:12,935 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:12,936 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:12,954 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:13,136 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:52:13,136 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:13,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:13,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1288319843, now seen corresponding path program 1 times [2024-09-12 18:52:13,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:13,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726396190] [2024-09-12 18:52:13,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:13,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:13,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1834815249] [2024-09-12 18:52:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:13,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:13,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:13,155 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 18:52:13,157 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 18:52:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:13,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:52:13,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:13,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:13,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:13,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726396190] [2024-09-12 18:52:13,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:13,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834815249] [2024-09-12 18:52:13,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834815249] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:13,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:13,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:52:13,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876860786] [2024-09-12 18:52:13,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:13,238 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:13,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:13,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:13,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:13,238 INFO L87 Difference]: Start difference. First operand 314 states and 431 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 18:52:13,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:13,402 INFO L93 Difference]: Finished difference Result 352 states and 436 transitions. [2024-09-12 18:52:13,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:52:13,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 52 [2024-09-12 18:52:13,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:13,405 INFO L225 Difference]: With dead ends: 352 [2024-09-12 18:52:13,405 INFO L226 Difference]: Without dead ends: 350 [2024-09-12 18:52:13,405 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:52:13,406 INFO L434 NwaCegarLoop]: 154 mSDtfsCounter, 70 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:13,408 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 584 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:52:13,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-09-12 18:52:13,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 318. [2024-09-12 18:52:13,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 227 states have (on average 1.6916299559471366) internal successors, (384), 288 states have internal predecessors, (384), 26 states have call successors, (26), 5 states have call predecessors, (26), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:13,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 434 transitions. [2024-09-12 18:52:13,454 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 434 transitions. Word has length 52 [2024-09-12 18:52:13,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:13,454 INFO L474 AbstractCegarLoop]: Abstraction has 318 states and 434 transitions. [2024-09-12 18:52:13,454 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 18:52:13,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:13,455 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 434 transitions. [2024-09-12 18:52:13,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:52:13,455 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:13,455 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:13,472 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 18:52:13,659 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:13,660 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:13,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:13,660 INFO L85 PathProgramCache]: Analyzing trace with hash -371140379, now seen corresponding path program 1 times [2024-09-12 18:52:13,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:13,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061047362] [2024-09-12 18:52:13,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:13,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:13,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:13,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:13,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:13,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:13,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:13,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:13,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:13,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:13,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061047362] [2024-09-12 18:52:13,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061047362] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:13,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647731511] [2024-09-12 18:52:13,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:13,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:13,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:13,767 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 18:52:13,769 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 18:52:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:13,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:52:13,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:13,976 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:13,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:14,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647731511] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:14,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:52:14,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 11 [2024-09-12 18:52:14,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755763893] [2024-09-12 18:52:14,113 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:14,113 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:52:14,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:14,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:52:14,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:52:14,114 INFO L87 Difference]: Start difference. First operand 318 states and 434 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 8 states have internal predecessors, (40), 6 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:52:14,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:14,750 INFO L93 Difference]: Finished difference Result 357 states and 459 transitions. [2024-09-12 18:52:14,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:52:14,751 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 8 states have internal predecessors, (40), 6 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 53 [2024-09-12 18:52:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:14,753 INFO L225 Difference]: With dead ends: 357 [2024-09-12 18:52:14,753 INFO L226 Difference]: Without dead ends: 327 [2024-09-12 18:52:14,753 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:52:14,754 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 429 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:14,754 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 480 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:14,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-09-12 18:52:14,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 316. [2024-09-12 18:52:14,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.6696428571428572) internal successors, (374), 285 states have internal predecessors, (374), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 424 transitions. [2024-09-12 18:52:14,808 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 424 transitions. Word has length 53 [2024-09-12 18:52:14,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:14,808 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 424 transitions. [2024-09-12 18:52:14,808 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 8 states have internal predecessors, (40), 6 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:52:14,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:14,809 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 424 transitions. [2024-09-12 18:52:14,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 18:52:14,809 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:14,809 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:14,826 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 18:52:15,013 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:52:15,014 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:15,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:15,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1124627202, now seen corresponding path program 1 times [2024-09-12 18:52:15,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:15,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366750821] [2024-09-12 18:52:15,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:15,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:15,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547555885] [2024-09-12 18:52:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:15,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:15,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:15,027 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 18:52:15,029 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 18:52:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:15,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:52:15,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:15,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:15,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:15,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366750821] [2024-09-12 18:52:15,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:15,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547555885] [2024-09-12 18:52:15,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547555885] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:15,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:15,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:52:15,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320352223] [2024-09-12 18:52:15,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:15,102 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:52:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:15,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:52:15,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:52:15,103 INFO L87 Difference]: Start difference. First operand 316 states and 424 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:15,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:15,231 INFO L93 Difference]: Finished difference Result 349 states and 435 transitions. [2024-09-12 18:52:15,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:52:15,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2024-09-12 18:52:15,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:15,233 INFO L225 Difference]: With dead ends: 349 [2024-09-12 18:52:15,233 INFO L226 Difference]: Without dead ends: 347 [2024-09-12 18:52:15,234 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 18:52:15,234 INFO L434 NwaCegarLoop]: 161 mSDtfsCounter, 66 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:15,234 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 304 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:52:15,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-09-12 18:52:15,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 316. [2024-09-12 18:52:15,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.6517857142857142) internal successors, (370), 285 states have internal predecessors, (370), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:15,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 420 transitions. [2024-09-12 18:52:15,286 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 420 transitions. Word has length 54 [2024-09-12 18:52:15,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:15,287 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 420 transitions. [2024-09-12 18:52:15,287 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:15,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:15,287 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 420 transitions. [2024-09-12 18:52:15,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:52:15,288 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:15,288 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:15,304 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 18:52:15,488 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:52:15,488 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:15,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:15,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1565020512, now seen corresponding path program 1 times [2024-09-12 18:52:15,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:15,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109099517] [2024-09-12 18:52:15,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:15,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:15,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938315247] [2024-09-12 18:52:15,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:15,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:15,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:15,498 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 18:52:15,501 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 18:52:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:15,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:15,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:15,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:15,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:15,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109099517] [2024-09-12 18:52:15,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:15,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938315247] [2024-09-12 18:52:15,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938315247] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:15,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:15,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:15,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032003221] [2024-09-12 18:52:15,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:15,608 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:15,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:15,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:15,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:15,609 INFO L87 Difference]: Start difference. First operand 316 states and 420 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:52:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:16,074 INFO L93 Difference]: Finished difference Result 330 states and 421 transitions. [2024-09-12 18:52:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:16,074 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), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 56 [2024-09-12 18:52:16,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:16,076 INFO L225 Difference]: With dead ends: 330 [2024-09-12 18:52:16,076 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 18:52:16,078 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:16,078 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 150 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:16,079 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 233 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:16,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 18:52:16,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 316. [2024-09-12 18:52:16,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.6428571428571428) internal successors, (368), 285 states have internal predecessors, (368), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 418 transitions. [2024-09-12 18:52:16,129 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 418 transitions. Word has length 56 [2024-09-12 18:52:16,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:16,130 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 418 transitions. [2024-09-12 18:52:16,130 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), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:52:16,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 418 transitions. [2024-09-12 18:52:16,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:52:16,131 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:16,131 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:16,147 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 18:52:16,331 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:52:16,332 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:16,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:16,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1270995715, now seen corresponding path program 1 times [2024-09-12 18:52:16,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:16,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177651828] [2024-09-12 18:52:16,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:16,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:16,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954362501] [2024-09-12 18:52:16,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:16,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:16,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:16,344 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 18:52:16,345 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 18:52:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:16,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:16,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:16,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:16,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177651828] [2024-09-12 18:52:16,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:16,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954362501] [2024-09-12 18:52:16,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954362501] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:16,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:16,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:16,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479668992] [2024-09-12 18:52:16,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:16,458 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:16,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:16,459 INFO L87 Difference]: Start difference. First operand 316 states and 418 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:52:16,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:16,830 INFO L93 Difference]: Finished difference Result 330 states and 419 transitions. [2024-09-12 18:52:16,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:16,831 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), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2024-09-12 18:52:16,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:16,833 INFO L225 Difference]: With dead ends: 330 [2024-09-12 18:52:16,833 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 18:52:16,833 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:16,834 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:16,834 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 233 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:16,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 18:52:16,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 316. [2024-09-12 18:52:16,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.6339285714285714) internal successors, (366), 285 states have internal predecessors, (366), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:16,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 416 transitions. [2024-09-12 18:52:16,880 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 416 transitions. Word has length 57 [2024-09-12 18:52:16,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:16,880 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 416 transitions. [2024-09-12 18:52:16,880 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), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:52:16,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:16,880 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 416 transitions. [2024-09-12 18:52:16,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:52:16,881 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:16,881 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:16,897 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 18:52:17,085 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:52:17,086 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:17,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:17,086 INFO L85 PathProgramCache]: Analyzing trace with hash 746161602, now seen corresponding path program 1 times [2024-09-12 18:52:17,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:17,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019623361] [2024-09-12 18:52:17,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:17,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:17,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1072354070] [2024-09-12 18:52:17,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:17,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:17,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:17,102 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 18:52:17,105 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 18:52:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:17,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:17,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:17,186 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:17,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:17,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:17,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019623361] [2024-09-12 18:52:17,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:17,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072354070] [2024-09-12 18:52:17,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072354070] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:17,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:17,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:17,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897669748] [2024-09-12 18:52:17,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:17,188 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:17,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:17,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:17,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:17,188 INFO L87 Difference]: Start difference. First operand 316 states and 416 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:17,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:17,864 INFO L93 Difference]: Finished difference Result 346 states and 427 transitions. [2024-09-12 18:52:17,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:17,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2024-09-12 18:52:17,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:17,867 INFO L225 Difference]: With dead ends: 346 [2024-09-12 18:52:17,867 INFO L226 Difference]: Without dead ends: 345 [2024-09-12 18:52:17,867 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:17,868 INFO L434 NwaCegarLoop]: 145 mSDtfsCounter, 67 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:17,868 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 389 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:52:17,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-09-12 18:52:17,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 316. [2024-09-12 18:52:17,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.625) internal successors, (364), 285 states have internal predecessors, (364), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 414 transitions. [2024-09-12 18:52:17,924 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 414 transitions. Word has length 58 [2024-09-12 18:52:17,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:17,925 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 414 transitions. [2024-09-12 18:52:17,925 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:17,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:17,925 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 414 transitions. [2024-09-12 18:52:17,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:52:17,927 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:17,927 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:17,944 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:18,127 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:18,127 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:18,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:18,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1656173285, now seen corresponding path program 1 times [2024-09-12 18:52:18,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:18,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67986903] [2024-09-12 18:52:18,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:18,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:18,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468384639] [2024-09-12 18:52:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:18,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:18,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:18,138 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 18:52:18,139 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 18:52:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:18,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:18,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:18,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:18,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:18,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67986903] [2024-09-12 18:52:18,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:18,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468384639] [2024-09-12 18:52:18,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468384639] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:18,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:18,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:18,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832630001] [2024-09-12 18:52:18,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:18,241 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:18,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:18,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:18,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:18,241 INFO L87 Difference]: Start difference. First operand 316 states and 414 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:18,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:18,651 INFO L93 Difference]: Finished difference Result 346 states and 425 transitions. [2024-09-12 18:52:18,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:18,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2024-09-12 18:52:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:18,653 INFO L225 Difference]: With dead ends: 346 [2024-09-12 18:52:18,653 INFO L226 Difference]: Without dead ends: 345 [2024-09-12 18:52:18,654 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:18,654 INFO L434 NwaCegarLoop]: 147 mSDtfsCounter, 112 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:18,654 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 305 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:18,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-09-12 18:52:18,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 316. [2024-09-12 18:52:18,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.6160714285714286) internal successors, (362), 285 states have internal predecessors, (362), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:18,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 412 transitions. [2024-09-12 18:52:18,712 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 412 transitions. Word has length 59 [2024-09-12 18:52:18,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:18,712 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 412 transitions. [2024-09-12 18:52:18,712 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:18,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 412 transitions. [2024-09-12 18:52:18,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:52:18,713 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:18,713 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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 18:52:18,730 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 18:52:18,914 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:52:18,914 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:18,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:18,915 INFO L85 PathProgramCache]: Analyzing trace with hash -52484277, now seen corresponding path program 1 times [2024-09-12 18:52:18,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:18,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082646675] [2024-09-12 18:52:18,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:18,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:18,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066571829] [2024-09-12 18:52:18,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:18,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:18,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:18,929 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 18:52:18,931 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 18:52:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:18,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:52:18,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:19,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:19,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:19,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082646675] [2024-09-12 18:52:19,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:19,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066571829] [2024-09-12 18:52:19,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066571829] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:19,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:19,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:52:19,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127691039] [2024-09-12 18:52:19,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:19,098 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:19,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:19,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:19,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:19,098 INFO L87 Difference]: Start difference. First operand 316 states and 412 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:19,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:19,521 INFO L93 Difference]: Finished difference Result 335 states and 418 transitions. [2024-09-12 18:52:19,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:52:19,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2024-09-12 18:52:19,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:19,523 INFO L225 Difference]: With dead ends: 335 [2024-09-12 18:52:19,523 INFO L226 Difference]: Without dead ends: 333 [2024-09-12 18:52:19,523 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:52:19,524 INFO L434 NwaCegarLoop]: 136 mSDtfsCounter, 47 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:19,524 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 495 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-09-12 18:52:19,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 320. [2024-09-12 18:52:19,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.6079295154185023) internal successors, (365), 288 states have internal predecessors, (365), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:19,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 415 transitions. [2024-09-12 18:52:19,577 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 415 transitions. Word has length 63 [2024-09-12 18:52:19,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:19,578 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 415 transitions. [2024-09-12 18:52:19,578 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:19,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 415 transitions. [2024-09-12 18:52:19,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:52:19,579 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:19,579 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:19,596 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:19,779 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:19,780 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:19,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:19,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1273080342, now seen corresponding path program 1 times [2024-09-12 18:52:19,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:19,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521428019] [2024-09-12 18:52:19,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:19,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:19,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566522091] [2024-09-12 18:52:19,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:19,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:19,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:19,799 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 18:52:19,804 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 18:52:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:19,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:19,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:52:19,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:19,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:19,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521428019] [2024-09-12 18:52:19,988 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:19,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566522091] [2024-09-12 18:52:19,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566522091] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:19,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:19,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:19,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232315828] [2024-09-12 18:52:19,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:19,989 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:19,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:19,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:19,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:19,990 INFO L87 Difference]: Start difference. First operand 320 states and 415 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:20,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:20,286 INFO L93 Difference]: Finished difference Result 344 states and 436 transitions. [2024-09-12 18:52:20,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:20,286 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2024-09-12 18:52:20,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:20,288 INFO L225 Difference]: With dead ends: 344 [2024-09-12 18:52:20,288 INFO L226 Difference]: Without dead ends: 343 [2024-09-12 18:52:20,288 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:20,289 INFO L434 NwaCegarLoop]: 130 mSDtfsCounter, 84 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:20,289 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 240 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:52:20,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-09-12 18:52:20,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 320. [2024-09-12 18:52:20,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.5991189427312775) internal successors, (363), 288 states have internal predecessors, (363), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:20,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 413 transitions. [2024-09-12 18:52:20,344 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 413 transitions. Word has length 78 [2024-09-12 18:52:20,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:20,345 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 413 transitions. [2024-09-12 18:52:20,345 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:20,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:20,345 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 413 transitions. [2024-09-12 18:52:20,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:52:20,346 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:20,346 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:20,363 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:20,546 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:20,546 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:20,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:20,547 INFO L85 PathProgramCache]: Analyzing trace with hash 810785063, now seen corresponding path program 1 times [2024-09-12 18:52:20,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:20,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462537968] [2024-09-12 18:52:20,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:20,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:20,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030926524] [2024-09-12 18:52:20,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:20,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:20,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:20,572 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 18:52:20,574 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 18:52:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:20,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:20,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:21,809 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:52:21,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:21,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:21,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462537968] [2024-09-12 18:52:21,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:21,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030926524] [2024-09-12 18:52:21,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030926524] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:21,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:21,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:21,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004814542] [2024-09-12 18:52:21,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:21,810 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:21,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:21,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:21,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-09-12 18:52:21,811 INFO L87 Difference]: Start difference. First operand 320 states and 413 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:26,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:26,061 INFO L93 Difference]: Finished difference Result 344 states and 434 transitions. [2024-09-12 18:52:26,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:26,062 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 79 [2024-09-12 18:52:26,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:26,064 INFO L225 Difference]: With dead ends: 344 [2024-09-12 18:52:26,064 INFO L226 Difference]: Without dead ends: 343 [2024-09-12 18:52:26,064 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-09-12 18:52:26,065 INFO L434 NwaCegarLoop]: 131 mSDtfsCounter, 41 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:26,065 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 345 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 4 Unknown, 0 Unchecked, 4.2s Time] [2024-09-12 18:52:26,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-09-12 18:52:26,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 320. [2024-09-12 18:52:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.5903083700440528) internal successors, (361), 288 states have internal predecessors, (361), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:26,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 411 transitions. [2024-09-12 18:52:26,140 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 411 transitions. Word has length 79 [2024-09-12 18:52:26,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:26,140 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 411 transitions. [2024-09-12 18:52:26,140 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:26,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:26,140 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 411 transitions. [2024-09-12 18:52:26,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 18:52:26,141 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:26,142 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:26,158 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 18:52:26,342 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 18:52:26,342 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:26,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:26,343 INFO L85 PathProgramCache]: Analyzing trace with hash -635466696, now seen corresponding path program 1 times [2024-09-12 18:52:26,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:26,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381282870] [2024-09-12 18:52:26,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:26,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:26,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611933519] [2024-09-12 18:52:26,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:26,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:26,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:26,357 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 18:52:26,362 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 18:52:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:26,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:26,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:52:26,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:26,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:26,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381282870] [2024-09-12 18:52:26,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:26,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611933519] [2024-09-12 18:52:26,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611933519] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:26,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:26,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:26,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513711178] [2024-09-12 18:52:26,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:26,454 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:26,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:26,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:26,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:26,455 INFO L87 Difference]: Start difference. First operand 320 states and 411 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:27,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:27,137 INFO L93 Difference]: Finished difference Result 337 states and 422 transitions. [2024-09-12 18:52:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:27,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 80 [2024-09-12 18:52:27,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:27,140 INFO L225 Difference]: With dead ends: 337 [2024-09-12 18:52:27,140 INFO L226 Difference]: Without dead ends: 335 [2024-09-12 18:52:27,140 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:27,140 INFO L434 NwaCegarLoop]: 149 mSDtfsCounter, 53 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:27,141 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 345 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:52:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-09-12 18:52:27,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 320. [2024-09-12 18:52:27,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.5726872246696035) internal successors, (357), 288 states have internal predecessors, (357), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:27,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 407 transitions. [2024-09-12 18:52:27,205 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 407 transitions. Word has length 80 [2024-09-12 18:52:27,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:27,206 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 407 transitions. [2024-09-12 18:52:27,206 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:27,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:27,207 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 407 transitions. [2024-09-12 18:52:27,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 18:52:27,207 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:27,207 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:27,222 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 18:52:27,408 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:27,408 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:27,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:27,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1775369033, now seen corresponding path program 1 times [2024-09-12 18:52:27,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:27,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469002138] [2024-09-12 18:52:27,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:27,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:27,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878054970] [2024-09-12 18:52:27,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:27,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:27,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:27,422 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 18:52:27,427 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 18:52:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:27,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:27,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:27,513 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:52:27,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:27,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:27,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469002138] [2024-09-12 18:52:27,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:27,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878054970] [2024-09-12 18:52:27,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878054970] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:27,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:27,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:27,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628300591] [2024-09-12 18:52:27,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:27,514 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:27,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:27,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:27,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:27,514 INFO L87 Difference]: Start difference. First operand 320 states and 407 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:27,958 INFO L93 Difference]: Finished difference Result 337 states and 418 transitions. [2024-09-12 18:52:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:27,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 81 [2024-09-12 18:52:27,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:27,960 INFO L225 Difference]: With dead ends: 337 [2024-09-12 18:52:27,960 INFO L226 Difference]: Without dead ends: 335 [2024-09-12 18:52:27,961 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:27,961 INFO L434 NwaCegarLoop]: 152 mSDtfsCounter, 86 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:27,963 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 278 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:27,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-09-12 18:52:28,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 320. [2024-09-12 18:52:28,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.5550660792951543) internal successors, (353), 288 states have internal predecessors, (353), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:28,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 403 transitions. [2024-09-12 18:52:28,028 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 403 transitions. Word has length 81 [2024-09-12 18:52:28,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:28,028 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 403 transitions. [2024-09-12 18:52:28,028 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:28,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:28,029 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 403 transitions. [2024-09-12 18:52:28,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 18:52:28,030 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:28,030 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:28,044 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:28,230 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:52:28,230 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:28,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:28,231 INFO L85 PathProgramCache]: Analyzing trace with hash 2075595968, now seen corresponding path program 1 times [2024-09-12 18:52:28,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:28,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499638300] [2024-09-12 18:52:28,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:28,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:28,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736594799] [2024-09-12 18:52:28,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:28,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:28,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:28,248 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 18:52:28,249 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 18:52:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:28,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:52:28,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:28,569 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:52:28,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:33,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:33,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499638300] [2024-09-12 18:52:33,013 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:33,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736594799] [2024-09-12 18:52:33,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736594799] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:33,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:33,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:52:33,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707993144] [2024-09-12 18:52:33,014 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:33,014 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:52:33,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:33,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:52:33,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=77, Unknown=1, NotChecked=0, Total=110 [2024-09-12 18:52:33,015 INFO L87 Difference]: Start difference. First operand 320 states and 403 transitions. Second operand has 9 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 18:52:33,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:33,669 INFO L93 Difference]: Finished difference Result 338 states and 414 transitions. [2024-09-12 18:52:33,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:52:33,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2024-09-12 18:52:33,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:33,671 INFO L225 Difference]: With dead ends: 338 [2024-09-12 18:52:33,671 INFO L226 Difference]: Without dead ends: 335 [2024-09-12 18:52:33,671 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=32, Invalid=77, Unknown=1, NotChecked=0, Total=110 [2024-09-12 18:52:33,672 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 194 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:33,672 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 331 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:52:33,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-09-12 18:52:33,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 320. [2024-09-12 18:52:33,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.52863436123348) internal successors, (347), 288 states have internal predecessors, (347), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:33,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 397 transitions. [2024-09-12 18:52:33,738 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 397 transitions. Word has length 88 [2024-09-12 18:52:33,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:33,739 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 397 transitions. [2024-09-12 18:52:33,739 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 18:52:33,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:33,739 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 397 transitions. [2024-09-12 18:52:33,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 18:52:33,740 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:33,740 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:33,757 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 18:52:33,941 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 18:52:33,941 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:33,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:33,941 INFO L85 PathProgramCache]: Analyzing trace with hash -81034287, now seen corresponding path program 1 times [2024-09-12 18:52:33,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:33,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212605470] [2024-09-12 18:52:33,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:33,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:33,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283971347] [2024-09-12 18:52:33,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:33,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:33,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:33,958 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 18:52:33,959 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 18:52:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:34,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:52:34,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:34,317 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:52:34,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:34,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:34,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212605470] [2024-09-12 18:52:34,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:34,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283971347] [2024-09-12 18:52:34,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283971347] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:34,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:34,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:52:34,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273335935] [2024-09-12 18:52:34,564 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:34,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:52:34,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:34,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:52:34,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:52:34,566 INFO L87 Difference]: Start difference. First operand 320 states and 397 transitions. Second operand has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 18:52:35,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:35,101 INFO L93 Difference]: Finished difference Result 328 states and 400 transitions. [2024-09-12 18:52:35,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:52:35,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 89 [2024-09-12 18:52:35,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:35,103 INFO L225 Difference]: With dead ends: 328 [2024-09-12 18:52:35,104 INFO L226 Difference]: Without dead ends: 325 [2024-09-12 18:52:35,104 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:52:35,104 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 262 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:35,104 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 263 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:35,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-09-12 18:52:35,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 320. [2024-09-12 18:52:35,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.502202643171806) internal successors, (341), 288 states have internal predecessors, (341), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:35,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 391 transitions. [2024-09-12 18:52:35,171 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 391 transitions. Word has length 89 [2024-09-12 18:52:35,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:35,172 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 391 transitions. [2024-09-12 18:52:35,172 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 18:52:35,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:35,172 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 391 transitions. [2024-09-12 18:52:35,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 18:52:35,173 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:35,173 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:35,190 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-09-12 18:52:35,374 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:52:35,374 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:35,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:35,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1587574553, now seen corresponding path program 1 times [2024-09-12 18:52:35,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:35,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139406181] [2024-09-12 18:52:35,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:35,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:35,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386150344] [2024-09-12 18:52:35,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:35,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:35,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:35,390 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 18:52:35,394 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 18:52:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:35,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 18:52:35,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:52:35,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:35,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:35,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139406181] [2024-09-12 18:52:35,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:35,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386150344] [2024-09-12 18:52:35,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386150344] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:35,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:35,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:52:35,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477583105] [2024-09-12 18:52:35,931 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:35,931 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:52:35,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:35,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:52:35,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:35,932 INFO L87 Difference]: Start difference. First operand 320 states and 391 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 18:52:36,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:36,508 INFO L93 Difference]: Finished difference Result 331 states and 399 transitions. [2024-09-12 18:52:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:52:36,509 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2024-09-12 18:52:36,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:36,510 INFO L225 Difference]: With dead ends: 331 [2024-09-12 18:52:36,510 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 18:52:36,510 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:52:36,511 INFO L434 NwaCegarLoop]: 75 mSDtfsCounter, 228 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:36,511 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 423 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:36,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 18:52:36,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 324. [2024-09-12 18:52:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 230 states have (on average 1.4956521739130435) internal successors, (344), 291 states have internal predecessors, (344), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:36,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 394 transitions. [2024-09-12 18:52:36,586 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 394 transitions. Word has length 99 [2024-09-12 18:52:36,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:36,586 INFO L474 AbstractCegarLoop]: Abstraction has 324 states and 394 transitions. [2024-09-12 18:52:36,586 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 18:52:36,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:36,587 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 394 transitions. [2024-09-12 18:52:36,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:52:36,588 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:36,588 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:36,604 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-09-12 18:52:36,792 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 18:52:36,793 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:36,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:36,793 INFO L85 PathProgramCache]: Analyzing trace with hash -741366165, now seen corresponding path program 1 times [2024-09-12 18:52:36,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:36,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618447547] [2024-09-12 18:52:36,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:36,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:52:36,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:36,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618447547] [2024-09-12 18:52:36,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618447547] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:36,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:36,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:52:36,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947910618] [2024-09-12 18:52:36,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:36,874 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:52:36,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:36,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:52:36,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:52:36,875 INFO L87 Difference]: Start difference. First operand 324 states and 394 transitions. Second operand has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-09-12 18:52:37,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:37,078 INFO L93 Difference]: Finished difference Result 324 states and 394 transitions. [2024-09-12 18:52:37,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:52:37,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2024-09-12 18:52:37,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:37,081 INFO L225 Difference]: With dead ends: 324 [2024-09-12 18:52:37,081 INFO L226 Difference]: Without dead ends: 323 [2024-09-12 18:52:37,081 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 18:52:37,082 INFO L434 NwaCegarLoop]: 164 mSDtfsCounter, 1 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:37,082 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 297 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:52:37,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-09-12 18:52:37,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-09-12 18:52:37,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 230 states have (on average 1.4782608695652173) internal successors, (340), 290 states have internal predecessors, (340), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:37,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 390 transitions. [2024-09-12 18:52:37,153 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 390 transitions. Word has length 102 [2024-09-12 18:52:37,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:37,154 INFO L474 AbstractCegarLoop]: Abstraction has 323 states and 390 transitions. [2024-09-12 18:52:37,154 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-09-12 18:52:37,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 390 transitions. [2024-09-12 18:52:37,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:52:37,155 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:37,155 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:37,155 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-09-12 18:52:37,155 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:37,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:37,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1507514468, now seen corresponding path program 1 times [2024-09-12 18:52:37,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:37,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110511109] [2024-09-12 18:52:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:37,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,301 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:52:37,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:37,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110511109] [2024-09-12 18:52:37,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110511109] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:37,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:37,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:52:37,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859533342] [2024-09-12 18:52:37,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:37,303 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:52:37,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:37,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:52:37,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:52:37,304 INFO L87 Difference]: Start difference. First operand 323 states and 390 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-09-12 18:52:38,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:38,308 INFO L93 Difference]: Finished difference Result 327 states and 391 transitions. [2024-09-12 18:52:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:52:38,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 103 [2024-09-12 18:52:38,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:38,310 INFO L225 Difference]: With dead ends: 327 [2024-09-12 18:52:38,310 INFO L226 Difference]: Without dead ends: 326 [2024-09-12 18:52:38,310 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:52:38,310 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 475 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:38,310 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 247 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:52:38,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-09-12 18:52:38,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 323. [2024-09-12 18:52:38,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 230 states have (on average 1.4739130434782608) internal successors, (339), 290 states have internal predecessors, (339), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:38,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 389 transitions. [2024-09-12 18:52:38,394 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 389 transitions. Word has length 103 [2024-09-12 18:52:38,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:38,394 INFO L474 AbstractCegarLoop]: Abstraction has 323 states and 389 transitions. [2024-09-12 18:52:38,394 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-09-12 18:52:38,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:38,395 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 389 transitions. [2024-09-12 18:52:38,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-09-12 18:52:38,401 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:38,402 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:38,402 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-09-12 18:52:38,402 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:38,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:38,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1318958788, now seen corresponding path program 1 times [2024-09-12 18:52:38,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:38,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689544646] [2024-09-12 18:52:38,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:38,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,558 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:52:38,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:38,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689544646] [2024-09-12 18:52:38,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689544646] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:38,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:38,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:52:38,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642071720] [2024-09-12 18:52:38,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:38,560 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:38,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:38,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:38,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:38,562 INFO L87 Difference]: Start difference. First operand 323 states and 389 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:52:38,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:38,792 INFO L93 Difference]: Finished difference Result 338 states and 400 transitions. [2024-09-12 18:52:38,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:52:38,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-09-12 18:52:38,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:38,794 INFO L225 Difference]: With dead ends: 338 [2024-09-12 18:52:38,794 INFO L226 Difference]: Without dead ends: 337 [2024-09-12 18:52:38,795 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:38,799 INFO L434 NwaCegarLoop]: 159 mSDtfsCounter, 14 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:38,800 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 452 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:52:38,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-09-12 18:52:38,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 328. [2024-09-12 18:52:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 235 states have (on average 1.4638297872340424) internal successors, (344), 295 states have internal predecessors, (344), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:38,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 394 transitions. [2024-09-12 18:52:38,905 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 394 transitions. Word has length 105 [2024-09-12 18:52:38,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:38,906 INFO L474 AbstractCegarLoop]: Abstraction has 328 states and 394 transitions. [2024-09-12 18:52:38,907 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:52:38,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:38,907 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 394 transitions. [2024-09-12 18:52:38,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-12 18:52:38,908 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:38,908 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:38,908 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-09-12 18:52:38,908 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:38,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:38,909 INFO L85 PathProgramCache]: Analyzing trace with hash 2061950715, now seen corresponding path program 1 times [2024-09-12 18:52:38,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:38,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270926324] [2024-09-12 18:52:38,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:38,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:39,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:39,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270926324] [2024-09-12 18:52:39,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270926324] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:39,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393095985] [2024-09-12 18:52:39,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:39,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:39,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:39,134 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 18:52:39,136 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 18:52:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:39,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:52:39,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:39,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393095985] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:39,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:39,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-09-12 18:52:39,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842471390] [2024-09-12 18:52:39,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:39,317 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:39,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:39,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:39,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:52:39,318 INFO L87 Difference]: Start difference. First operand 328 states and 394 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:52:39,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:39,758 INFO L93 Difference]: Finished difference Result 338 states and 398 transitions. [2024-09-12 18:52:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:39,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-09-12 18:52:39,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:39,760 INFO L225 Difference]: With dead ends: 338 [2024-09-12 18:52:39,760 INFO L226 Difference]: Without dead ends: 337 [2024-09-12 18:52:39,760 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:39,761 INFO L434 NwaCegarLoop]: 140 mSDtfsCounter, 15 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:39,761 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 328 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:39,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-09-12 18:52:39,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 330. [2024-09-12 18:52:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 237 states have (on average 1.459915611814346) internal successors, (346), 297 states have internal predecessors, (346), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:39,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 396 transitions. [2024-09-12 18:52:39,825 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 396 transitions. Word has length 106 [2024-09-12 18:52:39,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:39,826 INFO L474 AbstractCegarLoop]: Abstraction has 330 states and 396 transitions. [2024-09-12 18:52:39,826 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:52:39,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:39,826 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 396 transitions. [2024-09-12 18:52:39,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 18:52:39,827 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:39,827 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 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 18:52:39,839 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-09-12 18:52:40,027 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:40,028 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:40,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:40,028 INFO L85 PathProgramCache]: Analyzing trace with hash 975132800, now seen corresponding path program 1 times [2024-09-12 18:52:40,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:40,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927372940] [2024-09-12 18:52:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:40,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:40,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466685590] [2024-09-12 18:52:40,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:40,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:40,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:40,041 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 18:52:40,042 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 18:52:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:40,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:52:40,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:40,263 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-09-12 18:52:40,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:40,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:40,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927372940] [2024-09-12 18:52:40,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:40,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466685590] [2024-09-12 18:52:40,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466685590] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:40,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:40,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:52:40,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465403108] [2024-09-12 18:52:40,338 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:40,339 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:52:40,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:40,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:52:40,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:52:40,339 INFO L87 Difference]: Start difference. First operand 330 states and 396 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:52:40,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:40,827 INFO L93 Difference]: Finished difference Result 333 states and 396 transitions. [2024-09-12 18:52:40,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:52:40,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 107 [2024-09-12 18:52:40,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:40,829 INFO L225 Difference]: With dead ends: 333 [2024-09-12 18:52:40,829 INFO L226 Difference]: Without dead ends: 331 [2024-09-12 18:52:40,830 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:52:40,830 INFO L434 NwaCegarLoop]: 109 mSDtfsCounter, 200 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:40,830 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 445 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:40,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-09-12 18:52:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 330. [2024-09-12 18:52:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 237 states have (on average 1.4514767932489452) internal successors, (344), 297 states have internal predecessors, (344), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:40,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 394 transitions. [2024-09-12 18:52:40,929 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 394 transitions. Word has length 107 [2024-09-12 18:52:40,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:40,930 INFO L474 AbstractCegarLoop]: Abstraction has 330 states and 394 transitions. [2024-09-12 18:52:40,930 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:52:40,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:40,930 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 394 transitions. [2024-09-12 18:52:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 18:52:40,931 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:40,931 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 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 18:52:40,948 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:41,132 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:41,132 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:41,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:41,132 INFO L85 PathProgramCache]: Analyzing trace with hash 164345814, now seen corresponding path program 1 times [2024-09-12 18:52:41,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:41,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412106206] [2024-09-12 18:52:41,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:41,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:41,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61816307] [2024-09-12 18:52:41,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:41,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:41,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:41,154 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 18:52:41,155 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 18:52:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:41,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:52:41,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:41,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:41,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:41,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412106206] [2024-09-12 18:52:41,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:41,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61816307] [2024-09-12 18:52:41,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61816307] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:41,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:41,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:52:41,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39262800] [2024-09-12 18:52:41,709 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:41,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:52:41,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:41,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:52:41,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:41,710 INFO L87 Difference]: Start difference. First operand 330 states and 394 transitions. Second operand has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:52:42,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:42,299 INFO L93 Difference]: Finished difference Result 380 states and 451 transitions. [2024-09-12 18:52:42,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:52:42,299 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 108 [2024-09-12 18:52:42,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:42,301 INFO L225 Difference]: With dead ends: 380 [2024-09-12 18:52:42,301 INFO L226 Difference]: Without dead ends: 378 [2024-09-12 18:52:42,301 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:52:42,301 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 486 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:42,302 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 497 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-09-12 18:52:42,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2024-09-12 18:52:42,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 279 states have (on average 1.3978494623655915) internal successors, (390), 339 states have internal predecessors, (390), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:52:42,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 448 transitions. [2024-09-12 18:52:42,385 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 448 transitions. Word has length 108 [2024-09-12 18:52:42,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:42,385 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 448 transitions. [2024-09-12 18:52:42,385 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:52:42,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:42,386 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 448 transitions. [2024-09-12 18:52:42,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-12 18:52:42,386 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:42,387 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:42,403 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 18:52:42,590 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:42,591 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:42,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:42,591 INFO L85 PathProgramCache]: Analyzing trace with hash 951666944, now seen corresponding path program 1 times [2024-09-12 18:52:42,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:42,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932231949] [2024-09-12 18:52:42,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:42,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:52:42,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:42,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932231949] [2024-09-12 18:52:42,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932231949] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:42,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:42,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:52:42,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874542276] [2024-09-12 18:52:42,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:42,738 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:42,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:42,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:42,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:42,739 INFO L87 Difference]: Start difference. First operand 376 states and 448 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:52:43,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:43,794 INFO L93 Difference]: Finished difference Result 390 states and 458 transitions. [2024-09-12 18:52:43,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:52:43,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-09-12 18:52:43,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:43,796 INFO L225 Difference]: With dead ends: 390 [2024-09-12 18:52:43,796 INFO L226 Difference]: Without dead ends: 389 [2024-09-12 18:52:43,796 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:43,797 INFO L434 NwaCegarLoop]: 159 mSDtfsCounter, 13 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:43,797 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 539 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:52:43,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-09-12 18:52:43,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 381. [2024-09-12 18:52:43,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 284 states have (on average 1.397887323943662) internal successors, (397), 344 states have internal predecessors, (397), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:52:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 455 transitions. [2024-09-12 18:52:43,914 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 455 transitions. Word has length 109 [2024-09-12 18:52:43,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:43,914 INFO L474 AbstractCegarLoop]: Abstraction has 381 states and 455 transitions. [2024-09-12 18:52:43,914 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:52:43,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:43,915 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 455 transitions. [2024-09-12 18:52:43,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-12 18:52:43,915 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:43,915 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 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 18:52:43,915 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-09-12 18:52:43,915 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:43,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:43,915 INFO L85 PathProgramCache]: Analyzing trace with hash 799753026, now seen corresponding path program 1 times [2024-09-12 18:52:43,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:43,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728788786] [2024-09-12 18:52:43,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:43,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,041 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:52:44,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:44,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728788786] [2024-09-12 18:52:44,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728788786] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:44,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:44,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:52:44,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77495893] [2024-09-12 18:52:44,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:44,042 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:44,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:44,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:44,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:44,043 INFO L87 Difference]: Start difference. First operand 381 states and 455 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-09-12 18:52:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:44,761 INFO L93 Difference]: Finished difference Result 414 states and 455 transitions. [2024-09-12 18:52:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:52:44,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-09-12 18:52:44,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:44,764 INFO L225 Difference]: With dead ends: 414 [2024-09-12 18:52:44,764 INFO L226 Difference]: Without dead ends: 413 [2024-09-12 18:52:44,764 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:44,764 INFO L434 NwaCegarLoop]: 200 mSDtfsCounter, 135 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:44,765 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 581 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:52:44,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-09-12 18:52:44,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 381. [2024-09-12 18:52:44,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 284 states have (on average 1.3873239436619718) internal successors, (394), 344 states have internal predecessors, (394), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:52:44,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 452 transitions. [2024-09-12 18:52:44,883 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 452 transitions. Word has length 109 [2024-09-12 18:52:44,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:44,884 INFO L474 AbstractCegarLoop]: Abstraction has 381 states and 452 transitions. [2024-09-12 18:52:44,884 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-09-12 18:52:44,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 452 transitions. [2024-09-12 18:52:44,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 18:52:44,885 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:44,885 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:44,885 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-09-12 18:52:44,885 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:44,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:44,886 INFO L85 PathProgramCache]: Analyzing trace with hash -563095617, now seen corresponding path program 1 times [2024-09-12 18:52:44,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:44,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36889883] [2024-09-12 18:52:44,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:44,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,084 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:45,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:45,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36889883] [2024-09-12 18:52:45,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36889883] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:45,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466451537] [2024-09-12 18:52:45,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:45,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:45,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:45,088 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 18:52:45,089 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 18:52:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:45,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:45,307 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:52:45,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:45,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466451537] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:45,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:45,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-09-12 18:52:45,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840221920] [2024-09-12 18:52:45,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:45,308 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:45,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:45,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:45,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:45,309 INFO L87 Difference]: Start difference. First operand 381 states and 452 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:52:45,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:45,696 INFO L93 Difference]: Finished difference Result 388 states and 455 transitions. [2024-09-12 18:52:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:52:45,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 110 [2024-09-12 18:52:45,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:45,699 INFO L225 Difference]: With dead ends: 388 [2024-09-12 18:52:45,699 INFO L226 Difference]: Without dead ends: 387 [2024-09-12 18:52:45,699 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:45,700 INFO L434 NwaCegarLoop]: 149 mSDtfsCounter, 56 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:45,700 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 529 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:45,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-09-12 18:52:45,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2024-09-12 18:52:45,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 286 states have (on average 1.3846153846153846) internal successors, (396), 346 states have internal predecessors, (396), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:52:45,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 454 transitions. [2024-09-12 18:52:45,791 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 454 transitions. Word has length 110 [2024-09-12 18:52:45,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:45,791 INFO L474 AbstractCegarLoop]: Abstraction has 383 states and 454 transitions. [2024-09-12 18:52:45,791 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:52:45,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:45,792 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 454 transitions. [2024-09-12 18:52:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 18:52:45,792 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:45,792 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 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 18:52:45,804 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 18:52:45,992 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:52:45,993 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:45,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:45,993 INFO L85 PathProgramCache]: Analyzing trace with hash -977459880, now seen corresponding path program 1 times [2024-09-12 18:52:45,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:45,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575122363] [2024-09-12 18:52:45,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:45,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:46,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:46,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575122363] [2024-09-12 18:52:46,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575122363] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:46,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432003143] [2024-09-12 18:52:46,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:46,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:46,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:46,283 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 18:52:46,285 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 18:52:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:52:46,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:46,529 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 11 proven. 18 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:46,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:47,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432003143] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:47,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:52:47,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2024-09-12 18:52:47,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501217603] [2024-09-12 18:52:47,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:47,556 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:52:47,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:47,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:52:47,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:52:47,556 INFO L87 Difference]: Start difference. First operand 383 states and 454 transitions. Second operand has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 18:52:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:48,652 INFO L93 Difference]: Finished difference Result 596 states and 712 transitions. [2024-09-12 18:52:48,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:52:48,652 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17) Word has length 110 [2024-09-12 18:52:48,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:48,654 INFO L225 Difference]: With dead ends: 596 [2024-09-12 18:52:48,654 INFO L226 Difference]: Without dead ends: 333 [2024-09-12 18:52:48,655 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:52:48,655 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 413 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:48,655 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 569 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:52:48,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-09-12 18:52:48,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-09-12 18:52:48,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 240 states have (on average 1.425) internal successors, (342), 300 states have internal predecessors, (342), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 392 transitions. [2024-09-12 18:52:48,730 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 392 transitions. Word has length 110 [2024-09-12 18:52:48,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:48,730 INFO L474 AbstractCegarLoop]: Abstraction has 333 states and 392 transitions. [2024-09-12 18:52:48,731 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 18:52:48,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:48,731 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 392 transitions. [2024-09-12 18:52:48,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-09-12 18:52:48,731 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:48,731 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:48,745 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 18:52:48,932 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:52:48,932 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:48,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:48,932 INFO L85 PathProgramCache]: Analyzing trace with hash 960799874, now seen corresponding path program 1 times [2024-09-12 18:52:48,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:48,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234316973] [2024-09-12 18:52:48,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:48,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,065 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-09-12 18:52:49,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:49,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234316973] [2024-09-12 18:52:49,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234316973] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:49,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870500134] [2024-09-12 18:52:49,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:49,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:49,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:49,068 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 18:52:49,070 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 18:52:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:49,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:52:49,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:49,202 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-09-12 18:52:49,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-09-12 18:52:49,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870500134] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:49,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:52:49,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 9 [2024-09-12 18:52:49,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387939292] [2024-09-12 18:52:49,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:49,335 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:52:49,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:49,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:52:49,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:52:49,336 INFO L87 Difference]: Start difference. First operand 333 states and 392 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:52:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:50,162 INFO L93 Difference]: Finished difference Result 731 states and 838 transitions. [2024-09-12 18:52:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:52:50,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2024-09-12 18:52:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:50,165 INFO L225 Difference]: With dead ends: 731 [2024-09-12 18:52:50,165 INFO L226 Difference]: Without dead ends: 699 [2024-09-12 18:52:50,166 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 243 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:52:50,166 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 710 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:50,167 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 776 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:52:50,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-09-12 18:52:50,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 489. [2024-09-12 18:52:50,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 384 states have (on average 1.5859375) internal successors, (609), 444 states have internal predecessors, (609), 38 states have call successors, (38), 8 states have call predecessors, (38), 7 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:52:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 683 transitions. [2024-09-12 18:52:50,272 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 683 transitions. Word has length 113 [2024-09-12 18:52:50,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:50,273 INFO L474 AbstractCegarLoop]: Abstraction has 489 states and 683 transitions. [2024-09-12 18:52:50,273 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:52:50,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:50,273 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 683 transitions. [2024-09-12 18:52:50,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-09-12 18:52:50,274 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:50,274 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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, 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 18:52:50,285 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:50,474 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:52:50,474 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:50,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:50,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1376796800, now seen corresponding path program 1 times [2024-09-12 18:52:50,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:50,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784232144] [2024-09-12 18:52:50,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:50,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:50,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599596725] [2024-09-12 18:52:50,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:50,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:50,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:50,495 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 18:52:50,497 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 18:52:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:50,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:52:50,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 17 proven. 21 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:50,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-09-12 18:52:51,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:51,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784232144] [2024-09-12 18:52:51,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:51,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599596725] [2024-09-12 18:52:51,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599596725] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:51,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:51,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 14 [2024-09-12 18:52:51,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928549764] [2024-09-12 18:52:51,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:51,056 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:52:51,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:51,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:52:51,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:52:51,058 INFO L87 Difference]: Start difference. First operand 489 states and 683 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:52:51,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:51,745 INFO L93 Difference]: Finished difference Result 495 states and 688 transitions. [2024-09-12 18:52:51,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:52:51,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-09-12 18:52:51,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:51,748 INFO L225 Difference]: With dead ends: 495 [2024-09-12 18:52:51,748 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 18:52:51,748 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 213 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:52:51,749 INFO L434 NwaCegarLoop]: 130 mSDtfsCounter, 28 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:51,749 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 549 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:52:51,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 18:52:51,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2024-09-12 18:52:51,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 387 states have (on average 1.5813953488372092) internal successors, (612), 447 states have internal predecessors, (612), 38 states have call successors, (38), 9 states have call predecessors, (38), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:52:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 686 transitions. [2024-09-12 18:52:51,898 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 686 transitions. Word has length 114 [2024-09-12 18:52:51,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:51,898 INFO L474 AbstractCegarLoop]: Abstraction has 493 states and 686 transitions. [2024-09-12 18:52:51,899 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:52:51,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:51,899 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 686 transitions. [2024-09-12 18:52:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 18:52:51,899 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:51,899 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 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 18:52:51,914 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:52,100 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:52:52,100 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:52,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:52,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1525520136, now seen corresponding path program 1 times [2024-09-12 18:52:52,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:52,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022185509] [2024-09-12 18:52:52,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:52,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,324 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-09-12 18:52:52,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022185509] [2024-09-12 18:52:52,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022185509] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100620938] [2024-09-12 18:52:52,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:52,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:52,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:52,327 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 18:52:52,328 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 18:52:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:52,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:52:52,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:52,563 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:52:52,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:52,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100620938] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:52,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:52,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-09-12 18:52:52,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834533013] [2024-09-12 18:52:52,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:52,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:52:52,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:52:52,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:52:52,565 INFO L87 Difference]: Start difference. First operand 493 states and 686 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:52:54,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:54,838 INFO L93 Difference]: Finished difference Result 954 states and 1277 transitions. [2024-09-12 18:52:54,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:52:54,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 116 [2024-09-12 18:52:54,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:54,841 INFO L225 Difference]: With dead ends: 954 [2024-09-12 18:52:54,841 INFO L226 Difference]: Without dead ends: 953 [2024-09-12 18:52:54,842 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:52:54,842 INFO L434 NwaCegarLoop]: 190 mSDtfsCounter, 832 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:54,842 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 854 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-09-12 18:52:54,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-09-12 18:52:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 693. [2024-09-12 18:52:55,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 571 states have (on average 1.6654991243432575) internal successors, (951), 631 states have internal predecessors, (951), 54 states have call successors, (54), 9 states have call predecessors, (54), 8 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-09-12 18:52:55,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1057 transitions. [2024-09-12 18:52:55,065 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1057 transitions. Word has length 116 [2024-09-12 18:52:55,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:55,065 INFO L474 AbstractCegarLoop]: Abstraction has 693 states and 1057 transitions. [2024-09-12 18:52:55,065 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:52:55,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1057 transitions. [2024-09-12 18:52:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:52:55,066 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:55,066 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 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 18:52:55,078 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:55,267 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 18:52:55,267 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:55,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:55,267 INFO L85 PathProgramCache]: Analyzing trace with hash 46484050, now seen corresponding path program 1 times [2024-09-12 18:52:55,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:55,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424998691] [2024-09-12 18:52:55,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:55,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:52:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:52:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:52:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:52:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,516 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 5 proven. 26 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:55,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:55,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424998691] [2024-09-12 18:52:55,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424998691] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:55,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864743894] [2024-09-12 18:52:55,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:55,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:55,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:55,518 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 18:52:55,520 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 18:52:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:52:55,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:55,723 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:52:55,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:52:55,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864743894] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:55,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:52:55,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 18 [2024-09-12 18:52:55,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90499425] [2024-09-12 18:52:55,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:55,881 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:52:55,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:55,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:52:55,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:52:55,882 INFO L87 Difference]: Start difference. First operand 693 states and 1057 transitions. Second operand has 18 states, 18 states have (on average 10.944444444444445) internal successors, (197), 17 states have internal predecessors, (197), 9 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2024-09-12 18:52:58,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:58,158 INFO L93 Difference]: Finished difference Result 1095 states and 1518 transitions. [2024-09-12 18:52:58,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 18:52:58,158 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.944444444444445) internal successors, (197), 17 states have internal predecessors, (197), 9 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) Word has length 117 [2024-09-12 18:52:58,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:58,160 INFO L225 Difference]: With dead ends: 1095 [2024-09-12 18:52:58,160 INFO L226 Difference]: Without dead ends: 533 [2024-09-12 18:52:58,161 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=302, Invalid=1180, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 18:52:58,162 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 1447 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:58,162 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 776 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-09-12 18:52:58,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-09-12 18:52:58,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 381. [2024-09-12 18:52:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 283 states have (on average 1.4946996466431095) internal successors, (423), 343 states have internal predecessors, (423), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:52:58,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 481 transitions. [2024-09-12 18:52:58,272 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 481 transitions. Word has length 117 [2024-09-12 18:52:58,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:58,272 INFO L474 AbstractCegarLoop]: Abstraction has 381 states and 481 transitions. [2024-09-12 18:52:58,273 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.944444444444445) internal successors, (197), 17 states have internal predecessors, (197), 9 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2024-09-12 18:52:58,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:58,273 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 481 transitions. [2024-09-12 18:52:58,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-09-12 18:52:58,273 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:58,273 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:52:58,287 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:58,474 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:52:58,474 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:58,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:58,474 INFO L85 PathProgramCache]: Analyzing trace with hash -123843877, now seen corresponding path program 1 times [2024-09-12 18:52:58,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:58,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167697833] [2024-09-12 18:52:58,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:58,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:58,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905670932] [2024-09-12 18:52:58,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:58,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:58,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:58,491 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 18:52:58,492 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 18:52:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:58,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:58,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:58,763 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:52:58,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:58,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:58,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167697833] [2024-09-12 18:52:58,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:58,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905670932] [2024-09-12 18:52:58,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905670932] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:58,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:58,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:52:58,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967970575] [2024-09-12 18:52:58,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:58,764 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:58,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:58,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:58,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:58,765 INFO L87 Difference]: Start difference. First operand 381 states and 481 transitions. Second operand has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:52:59,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:59,292 INFO L93 Difference]: Finished difference Result 383 states and 483 transitions. [2024-09-12 18:52:59,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:52:59,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 169 [2024-09-12 18:52:59,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:59,294 INFO L225 Difference]: With dead ends: 383 [2024-09-12 18:52:59,294 INFO L226 Difference]: Without dead ends: 382 [2024-09-12 18:52:59,294 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:59,294 INFO L434 NwaCegarLoop]: 156 mSDtfsCounter, 6 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:59,295 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 378 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-09-12 18:52:59,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2024-09-12 18:52:59,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 283 states have (on average 1.4911660777385158) internal successors, (422), 343 states have internal predecessors, (422), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:52:59,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 480 transitions. [2024-09-12 18:52:59,401 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 480 transitions. Word has length 169 [2024-09-12 18:52:59,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:59,401 INFO L474 AbstractCegarLoop]: Abstraction has 381 states and 480 transitions. [2024-09-12 18:52:59,402 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:52:59,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:59,402 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 480 transitions. [2024-09-12 18:52:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-09-12 18:52:59,403 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:59,403 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:52:59,420 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 18:52:59,603 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-09-12 18:52:59,604 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:59,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:59,604 INFO L85 PathProgramCache]: Analyzing trace with hash 455807296, now seen corresponding path program 1 times [2024-09-12 18:52:59,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:59,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302637361] [2024-09-12 18:52:59,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:59,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:59,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349781112] [2024-09-12 18:52:59,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:59,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:59,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:59,631 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 18:52:59,635 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 18:52:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:59,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:59,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:59,956 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:52:59,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:00,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:00,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302637361] [2024-09-12 18:53:00,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:00,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349781112] [2024-09-12 18:53:00,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349781112] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:00,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:00,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:53:00,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4242081] [2024-09-12 18:53:00,546 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:00,546 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:53:00,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:00,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:53:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:53:00,547 INFO L87 Difference]: Start difference. First operand 381 states and 480 transitions. Second operand has 5 states, 4 states have (on average 25.75) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:53:00,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:00,965 INFO L93 Difference]: Finished difference Result 383 states and 482 transitions. [2024-09-12 18:53:00,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:53:00,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.75) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 170 [2024-09-12 18:53:00,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:00,967 INFO L225 Difference]: With dead ends: 383 [2024-09-12 18:53:00,967 INFO L226 Difference]: Without dead ends: 382 [2024-09-12 18:53:00,967 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:53:00,967 INFO L434 NwaCegarLoop]: 134 mSDtfsCounter, 4 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:00,968 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 267 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:53:00,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-09-12 18:53:01,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2024-09-12 18:53:01,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 283 states have (on average 1.4876325088339222) internal successors, (421), 343 states have internal predecessors, (421), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:53:01,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 479 transitions. [2024-09-12 18:53:01,117 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 479 transitions. Word has length 170 [2024-09-12 18:53:01,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:01,117 INFO L474 AbstractCegarLoop]: Abstraction has 381 states and 479 transitions. [2024-09-12 18:53:01,117 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.75) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:53:01,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:01,118 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 479 transitions. [2024-09-12 18:53:01,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-09-12 18:53:01,118 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:01,119 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:53:01,137 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 18:53:01,319 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:01,319 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:01,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:01,320 INFO L85 PathProgramCache]: Analyzing trace with hash -55846686, now seen corresponding path program 1 times [2024-09-12 18:53:01,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:01,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322314761] [2024-09-12 18:53:01,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:01,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:01,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1635522999] [2024-09-12 18:53:01,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:01,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:01,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:01,349 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 18:53:01,352 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 18:53:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:01,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:53:01,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:01,756 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:53:01,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:53:01,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:01,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322314761] [2024-09-12 18:53:01,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:01,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635522999] [2024-09-12 18:53:01,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635522999] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:01,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:53:01,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:53:01,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583904746] [2024-09-12 18:53:01,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:01,757 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:53:01,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:01,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:53:01,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:53:01,757 INFO L87 Difference]: Start difference. First operand 381 states and 479 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:53:02,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:02,268 INFO L93 Difference]: Finished difference Result 383 states and 481 transitions. [2024-09-12 18:53:02,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:53:02,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 172 [2024-09-12 18:53:02,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:02,270 INFO L225 Difference]: With dead ends: 383 [2024-09-12 18:53:02,270 INFO L226 Difference]: Without dead ends: 382 [2024-09-12 18:53:02,270 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:53:02,271 INFO L434 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:02,271 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 364 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:53:02,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-09-12 18:53:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2024-09-12 18:53:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 284 states have (on average 1.4859154929577465) internal successors, (422), 344 states have internal predecessors, (422), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:53:02,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 480 transitions. [2024-09-12 18:53:02,369 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 480 transitions. Word has length 172 [2024-09-12 18:53:02,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:02,370 INFO L474 AbstractCegarLoop]: Abstraction has 382 states and 480 transitions. [2024-09-12 18:53:02,370 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:53:02,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:02,370 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 480 transitions. [2024-09-12 18:53:02,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-09-12 18:53:02,371 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:02,371 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:53:02,383 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 18:53:02,571 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:02,572 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:02,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:02,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1576211329, now seen corresponding path program 1 times [2024-09-12 18:53:02,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:02,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414382394] [2024-09-12 18:53:02,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:02,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:02,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [110178603] [2024-09-12 18:53:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:02,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:02,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:02,591 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 18:53:02,593 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 18:53:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:02,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:53:02,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:03,415 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:53:03,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:23,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:23,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414382394] [2024-09-12 18:53:23,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:23,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110178603] [2024-09-12 18:53:23,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110178603] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:23,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:23,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:53:23,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878227435] [2024-09-12 18:53:23,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:23,819 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:53:23,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:23,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:53:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=179, Unknown=5, NotChecked=0, Total=240 [2024-09-12 18:53:23,820 INFO L87 Difference]: Start difference. First operand 382 states and 480 transitions. Second operand has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:53:24,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:24,670 INFO L93 Difference]: Finished difference Result 524 states and 700 transitions. [2024-09-12 18:53:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:53:24,670 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 175 [2024-09-12 18:53:24,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:24,672 INFO L225 Difference]: With dead ends: 524 [2024-09-12 18:53:24,672 INFO L226 Difference]: Without dead ends: 521 [2024-09-12 18:53:24,673 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=94, Invalid=281, Unknown=5, NotChecked=0, Total=380 [2024-09-12 18:53:24,673 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 272 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:24,673 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 989 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:53:24,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-09-12 18:53:24,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 477. [2024-09-12 18:53:24,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 371 states have (on average 1.5633423180592991) internal successors, (580), 431 states have internal predecessors, (580), 38 states have call successors, (38), 9 states have call predecessors, (38), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:53:24,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 654 transitions. [2024-09-12 18:53:24,801 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 654 transitions. Word has length 175 [2024-09-12 18:53:24,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:24,801 INFO L474 AbstractCegarLoop]: Abstraction has 477 states and 654 transitions. [2024-09-12 18:53:24,801 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:53:24,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:24,801 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 654 transitions. [2024-09-12 18:53:24,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-09-12 18:53:24,802 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:24,802 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:53:24,814 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-09-12 18:53:25,002 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 18:53:25,002 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:25,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:25,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1617910745, now seen corresponding path program 1 times [2024-09-12 18:53:25,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:25,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000624267] [2024-09-12 18:53:25,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:25,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:25,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [973356714] [2024-09-12 18:53:25,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:25,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:25,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:25,019 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 18:53:25,023 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 18:53:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:25,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:53:25,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:25,887 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:53:25,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:34,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:34,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000624267] [2024-09-12 18:53:34,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:34,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973356714] [2024-09-12 18:53:34,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973356714] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:34,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:34,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:53:34,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538297968] [2024-09-12 18:53:34,391 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:34,391 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:53:34,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:34,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:53:34,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=179, Unknown=2, NotChecked=0, Total=240 [2024-09-12 18:53:34,392 INFO L87 Difference]: Start difference. First operand 477 states and 654 transitions. Second operand has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:53:35,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:35,237 INFO L93 Difference]: Finished difference Result 524 states and 695 transitions. [2024-09-12 18:53:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:53:35,238 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 176 [2024-09-12 18:53:35,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:35,240 INFO L225 Difference]: With dead ends: 524 [2024-09-12 18:53:35,240 INFO L226 Difference]: Without dead ends: 521 [2024-09-12 18:53:35,240 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=109, Invalid=309, Unknown=2, NotChecked=0, Total=420 [2024-09-12 18:53:35,240 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 277 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:35,241 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 831 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:53:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-09-12 18:53:35,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 478. [2024-09-12 18:53:35,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 372 states have (on average 1.5510752688172043) internal successors, (577), 432 states have internal predecessors, (577), 38 states have call successors, (38), 9 states have call predecessors, (38), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:53:35,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 651 transitions. [2024-09-12 18:53:35,375 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 651 transitions. Word has length 176 [2024-09-12 18:53:35,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:35,376 INFO L474 AbstractCegarLoop]: Abstraction has 478 states and 651 transitions. [2024-09-12 18:53:35,376 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:53:35,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:35,376 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 651 transitions. [2024-09-12 18:53:35,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-09-12 18:53:35,377 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:35,377 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:53:35,395 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-09-12 18:53:35,577 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 18:53:35,578 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:35,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:35,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1384374657, now seen corresponding path program 1 times [2024-09-12 18:53:35,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:35,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511010934] [2024-09-12 18:53:35,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:35,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:35,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [162094676] [2024-09-12 18:53:35,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:35,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:35,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:35,604 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 18:53:35,607 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 18:53:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:35,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:53:35,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:36,527 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:53:36,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:36,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:36,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511010934] [2024-09-12 18:53:36,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:36,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162094676] [2024-09-12 18:53:36,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162094676] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:36,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:36,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 18:53:36,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388315097] [2024-09-12 18:53:36,749 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:36,749 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:53:36,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:36,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:53:36,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:53:36,750 INFO L87 Difference]: Start difference. First operand 478 states and 651 transitions. Second operand has 15 states, 14 states have (on average 8.071428571428571) internal successors, (113), 15 states have internal predecessors, (113), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:53:38,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:38,177 INFO L93 Difference]: Finished difference Result 529 states and 704 transitions. [2024-09-12 18:53:38,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:53:38,178 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.071428571428571) internal successors, (113), 15 states have internal predecessors, (113), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 177 [2024-09-12 18:53:38,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:38,181 INFO L225 Difference]: With dead ends: 529 [2024-09-12 18:53:38,181 INFO L226 Difference]: Without dead ends: 525 [2024-09-12 18:53:38,181 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2024-09-12 18:53:38,182 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 506 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:38,182 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 514 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:53:38,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-09-12 18:53:38,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 479. [2024-09-12 18:53:38,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 373 states have (on average 1.5335120643431635) internal successors, (572), 433 states have internal predecessors, (572), 38 states have call successors, (38), 9 states have call predecessors, (38), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:53:38,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 646 transitions. [2024-09-12 18:53:38,308 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 646 transitions. Word has length 177 [2024-09-12 18:53:38,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:38,308 INFO L474 AbstractCegarLoop]: Abstraction has 479 states and 646 transitions. [2024-09-12 18:53:38,308 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.071428571428571) internal successors, (113), 15 states have internal predecessors, (113), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:53:38,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:38,309 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 646 transitions. [2024-09-12 18:53:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-09-12 18:53:38,309 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:38,309 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:53:38,326 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 18:53:38,510 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:53:38,510 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:38,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash -34058391, now seen corresponding path program 1 times [2024-09-12 18:53:38,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:38,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076314118] [2024-09-12 18:53:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:38,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138855071] [2024-09-12 18:53:38,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:38,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:38,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:38,532 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 18:53:38,535 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 18:53:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:38,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:53:38,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:53:39,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:40,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:40,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076314118] [2024-09-12 18:53:40,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:40,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138855071] [2024-09-12 18:53:40,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138855071] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:40,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:40,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 18:53:40,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047574470] [2024-09-12 18:53:40,610 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:40,610 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:53:40,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:40,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:53:40,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:53:40,611 INFO L87 Difference]: Start difference. First operand 479 states and 646 transitions. Second operand has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 15 states have internal predecessors, (114), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:53:42,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:42,215 INFO L93 Difference]: Finished difference Result 528 states and 697 transitions. [2024-09-12 18:53:42,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:53:42,216 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 15 states have internal predecessors, (114), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 178 [2024-09-12 18:53:42,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:42,218 INFO L225 Difference]: With dead ends: 528 [2024-09-12 18:53:42,218 INFO L226 Difference]: Without dead ends: 525 [2024-09-12 18:53:42,219 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=173, Invalid=757, Unknown=0, NotChecked=0, Total=930 [2024-09-12 18:53:42,219 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 499 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 2449 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 2484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:42,220 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 641 Invalid, 2484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2449 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:53:42,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-09-12 18:53:42,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 480. [2024-09-12 18:53:42,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 374 states have (on average 1.5213903743315509) internal successors, (569), 434 states have internal predecessors, (569), 38 states have call successors, (38), 9 states have call predecessors, (38), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:53:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 643 transitions. [2024-09-12 18:53:42,401 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 643 transitions. Word has length 178 [2024-09-12 18:53:42,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:42,401 INFO L474 AbstractCegarLoop]: Abstraction has 480 states and 643 transitions. [2024-09-12 18:53:42,401 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 15 states have internal predecessors, (114), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:53:42,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:42,402 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 643 transitions. [2024-09-12 18:53:42,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-09-12 18:53:42,402 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:42,403 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:53:42,420 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 18:53:42,603 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:42,603 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:42,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:42,603 INFO L85 PathProgramCache]: Analyzing trace with hash -35720725, now seen corresponding path program 1 times [2024-09-12 18:53:42,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:42,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652506340] [2024-09-12 18:53:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:42,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:53:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:53:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:53:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:53:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:53:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:53:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,731 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:53:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:53:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:53:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:53:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:53:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 18:53:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:53:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:53:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:53:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:53:42,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:42,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652506340] [2024-09-12 18:53:42,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652506340] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:42,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781512037] [2024-09-12 18:53:42,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:42,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:42,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:42,751 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 18:53:42,752 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 18:53:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:53:42,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:53:42,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:53:42,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781512037] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:42,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:42,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2024-09-12 18:53:42,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212536585] [2024-09-12 18:53:42,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:42,914 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:53:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:42,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:53:42,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:53:42,915 INFO L87 Difference]: Start difference. First operand 480 states and 643 transitions. Second operand has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-09-12 18:53:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:43,996 INFO L93 Difference]: Finished difference Result 694 states and 856 transitions. [2024-09-12 18:53:43,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:53:43,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 178 [2024-09-12 18:53:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:43,999 INFO L225 Difference]: With dead ends: 694 [2024-09-12 18:53:43,999 INFO L226 Difference]: Without dead ends: 661 [2024-09-12 18:53:44,000 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:53:44,000 INFO L434 NwaCegarLoop]: 293 mSDtfsCounter, 494 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:44,000 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1388 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:53:44,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2024-09-12 18:53:44,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 483. [2024-09-12 18:53:44,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 378 states have (on average 1.5105820105820107) internal successors, (571), 437 states have internal predecessors, (571), 38 states have call successors, (38), 9 states have call predecessors, (38), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:53:44,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 645 transitions. [2024-09-12 18:53:44,198 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 645 transitions. Word has length 178 [2024-09-12 18:53:44,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:44,199 INFO L474 AbstractCegarLoop]: Abstraction has 483 states and 645 transitions. [2024-09-12 18:53:44,199 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-09-12 18:53:44,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:44,199 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 645 transitions. [2024-09-12 18:53:44,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-09-12 18:53:44,200 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:44,200 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:53:44,218 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-09-12 18:53:44,401 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:44,401 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:44,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:44,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1055809917, now seen corresponding path program 1 times [2024-09-12 18:53:44,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:44,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440872219] [2024-09-12 18:53:44,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:44,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:44,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [436360478] [2024-09-12 18:53:44,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:44,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:44,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:44,419 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 18:53:44,420 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 18:53:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:44,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:53:44,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:53:45,281 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:06,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:06,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440872219] [2024-09-12 18:54:06,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:06,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436360478] [2024-09-12 18:54:06,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436360478] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:06,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:06,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:54:06,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977032149] [2024-09-12 18:54:06,280 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:06,280 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:54:06,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:06,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:54:06,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=237, Unknown=5, NotChecked=0, Total=306 [2024-09-12 18:54:06,281 INFO L87 Difference]: Start difference. First operand 483 states and 645 transitions. Second operand has 13 states, 12 states have (on average 9.583333333333334) internal successors, (115), 13 states have internal predecessors, (115), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:54:07,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:07,721 INFO L93 Difference]: Finished difference Result 518 states and 680 transitions. [2024-09-12 18:54:07,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:54:07,721 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.583333333333334) internal successors, (115), 13 states have internal predecessors, (115), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 179 [2024-09-12 18:54:07,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:07,724 INFO L225 Difference]: With dead ends: 518 [2024-09-12 18:54:07,724 INFO L226 Difference]: Without dead ends: 516 [2024-09-12 18:54:07,724 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=102, Invalid=355, Unknown=5, NotChecked=0, Total=462 [2024-09-12 18:54:07,725 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 388 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:07,725 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 741 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:54:07,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-09-12 18:54:07,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2024-09-12 18:54:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 379 states have (on average 1.5039577836411608) internal successors, (570), 438 states have internal predecessors, (570), 38 states have call successors, (38), 9 states have call predecessors, (38), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:54:07,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 644 transitions. [2024-09-12 18:54:07,930 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 644 transitions. Word has length 179 [2024-09-12 18:54:07,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:07,931 INFO L474 AbstractCegarLoop]: Abstraction has 484 states and 644 transitions. [2024-09-12 18:54:07,931 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.583333333333334) internal successors, (115), 13 states have internal predecessors, (115), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:54:07,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:07,931 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 644 transitions. [2024-09-12 18:54:07,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-09-12 18:54:07,932 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:07,932 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:54:07,950 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:08,133 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:54:08,133 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:08,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:08,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1629631147, now seen corresponding path program 1 times [2024-09-12 18:54:08,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:08,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853516025] [2024-09-12 18:54:08,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:08,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:08,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921930741] [2024-09-12 18:54:08,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:08,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:08,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:08,150 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 18:54:08,153 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 18:54:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:08,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 18:54:08,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:54:09,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:11,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:11,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853516025] [2024-09-12 18:54:11,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:11,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921930741] [2024-09-12 18:54:11,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921930741] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:11,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:11,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 18:54:11,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655137353] [2024-09-12 18:54:11,238 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:11,238 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:54:11,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:11,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:54:11,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:54:11,239 INFO L87 Difference]: Start difference. First operand 484 states and 644 transitions. Second operand has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 15 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:54:13,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:13,022 INFO L93 Difference]: Finished difference Result 511 states and 677 transitions. [2024-09-12 18:54:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:54:13,022 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 15 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 180 [2024-09-12 18:54:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:13,024 INFO L225 Difference]: With dead ends: 511 [2024-09-12 18:54:13,024 INFO L226 Difference]: Without dead ends: 509 [2024-09-12 18:54:13,025 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:54:13,025 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 319 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:13,025 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 323 Invalid, 2446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2431 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-09-12 18:54:13,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-09-12 18:54:13,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 485. [2024-09-12 18:54:13,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 380 states have (on average 1.4973684210526317) internal successors, (569), 439 states have internal predecessors, (569), 38 states have call successors, (38), 9 states have call predecessors, (38), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:54:13,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 643 transitions. [2024-09-12 18:54:13,166 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 643 transitions. Word has length 180 [2024-09-12 18:54:13,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:13,166 INFO L474 AbstractCegarLoop]: Abstraction has 485 states and 643 transitions. [2024-09-12 18:54:13,166 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 15 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:54:13,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:13,166 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 643 transitions. [2024-09-12 18:54:13,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-09-12 18:54:13,167 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:13,167 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2024-09-12 18:54:13,179 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:13,367 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:54:13,367 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:13,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:13,368 INFO L85 PathProgramCache]: Analyzing trace with hash -895775157, now seen corresponding path program 1 times [2024-09-12 18:54:13,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:13,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482899760] [2024-09-12 18:54:13,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:13,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:13,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685178219] [2024-09-12 18:54:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:13,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:13,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:13,384 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 18:54:13,389 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 18:54:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:13,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-09-12 18:54:13,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:15,103 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 19 proven. 65 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 18:54:15,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 16 proven. 59 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:54:18,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:18,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482899760] [2024-09-12 18:54:18,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:18,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685178219] [2024-09-12 18:54:18,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685178219] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:54:18,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:54:18,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 31 [2024-09-12 18:54:18,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112108044] [2024-09-12 18:54:18,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:18,628 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-12 18:54:18,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:18,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-12 18:54:18,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2024-09-12 18:54:18,629 INFO L87 Difference]: Start difference. First operand 485 states and 643 transitions. Second operand has 31 states, 31 states have (on average 7.354838709677419) internal successors, (228), 28 states have internal predecessors, (228), 12 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 18:54:26,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:26,157 INFO L93 Difference]: Finished difference Result 698 states and 981 transitions. [2024-09-12 18:54:26,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 18:54:26,158 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.354838709677419) internal successors, (228), 28 states have internal predecessors, (228), 12 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 184 [2024-09-12 18:54:26,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:26,160 INFO L225 Difference]: With dead ends: 698 [2024-09-12 18:54:26,160 INFO L226 Difference]: Without dead ends: 694 [2024-09-12 18:54:26,161 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=429, Invalid=2223, Unknown=0, NotChecked=0, Total=2652 [2024-09-12 18:54:26,161 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 1305 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 3998 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 4234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 3998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:26,161 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 696 Invalid, 4234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 3998 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-09-12 18:54:26,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-09-12 18:54:26,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 505. [2024-09-12 18:54:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 398 states have (on average 1.5075376884422111) internal successors, (600), 458 states have internal predecessors, (600), 39 states have call successors, (39), 10 states have call predecessors, (39), 9 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 18:54:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 676 transitions. [2024-09-12 18:54:26,335 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 676 transitions. Word has length 184 [2024-09-12 18:54:26,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:26,335 INFO L474 AbstractCegarLoop]: Abstraction has 505 states and 676 transitions. [2024-09-12 18:54:26,335 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.354838709677419) internal successors, (228), 28 states have internal predecessors, (228), 12 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 18:54:26,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 676 transitions. [2024-09-12 18:54:26,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-09-12 18:54:26,336 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:26,336 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 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, 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] [2024-09-12 18:54:26,353 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:26,540 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:26,540 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:26,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:26,541 INFO L85 PathProgramCache]: Analyzing trace with hash -208436136, now seen corresponding path program 1 times [2024-09-12 18:54:26,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:26,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521444232] [2024-09-12 18:54:26,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:26,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:54:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:54:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:54:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:54:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:54:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:54:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:54:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:54:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:54:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:54:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:54:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 18:54:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:54:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:54:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:54:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 18:54:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,822 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 61 proven. 12 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-09-12 18:54:26,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:26,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521444232] [2024-09-12 18:54:26,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521444232] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:26,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518965695] [2024-09-12 18:54:26,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:26,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:26,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:26,825 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 18:54:26,829 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 18:54:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:26,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:54:26,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 93 proven. 12 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:54:27,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 19 proven. 54 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-09-12 18:54:27,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518965695] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:54:27,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:54:27,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2024-09-12 18:54:27,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533373705] [2024-09-12 18:54:27,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:27,344 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:54:27,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:27,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:54:27,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:54:27,344 INFO L87 Difference]: Start difference. First operand 505 states and 676 transitions. Second operand has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 12 states have internal predecessors, (165), 7 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-09-12 18:54:27,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:27,726 INFO L93 Difference]: Finished difference Result 539 states and 707 transitions. [2024-09-12 18:54:27,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:54:27,726 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 12 states have internal predecessors, (165), 7 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 185 [2024-09-12 18:54:27,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:27,727 INFO L225 Difference]: With dead ends: 539 [2024-09-12 18:54:27,728 INFO L226 Difference]: Without dead ends: 170 [2024-09-12 18:54:27,728 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 397 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:54:27,729 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 149 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:27,729 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 459 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:54:27,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-09-12 18:54:27,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2024-09-12 18:54:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 137 states have (on average 1.0437956204379562) internal successors, (143), 143 states have internal predecessors, (143), 18 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:54:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 177 transitions. [2024-09-12 18:54:27,793 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 177 transitions. Word has length 185 [2024-09-12 18:54:27,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:27,793 INFO L474 AbstractCegarLoop]: Abstraction has 170 states and 177 transitions. [2024-09-12 18:54:27,793 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 12 states have internal predecessors, (165), 7 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-09-12 18:54:27,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 177 transitions. [2024-09-12 18:54:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-09-12 18:54:27,795 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:27,795 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2024-09-12 18:54:27,811 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-09-12 18:54:27,995 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:27,996 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:27,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1846305640, now seen corresponding path program 1 times [2024-09-12 18:54:27,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:27,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016364852] [2024-09-12 18:54:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:28,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684688425] [2024-09-12 18:54:28,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:28,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:28,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:28,016 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 18:54:28,017 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 18:54:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:28,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:54:28,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:28,673 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-09-12 18:54:28,673 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:28,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:28,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016364852] [2024-09-12 18:54:28,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:28,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684688425] [2024-09-12 18:54:28,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684688425] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:28,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:28,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:54:28,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559780515] [2024-09-12 18:54:28,754 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:28,754 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:54:28,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:28,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:54:28,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:54:28,755 INFO L87 Difference]: Start difference. First operand 170 states and 177 transitions. Second operand has 11 states, 10 states have (on average 11.7) internal successors, (117), 11 states have internal predecessors, (117), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:29,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:29,195 INFO L93 Difference]: Finished difference Result 170 states and 177 transitions. [2024-09-12 18:54:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:54:29,196 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.7) internal successors, (117), 11 states have internal predecessors, (117), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 186 [2024-09-12 18:54:29,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:29,197 INFO L225 Difference]: With dead ends: 170 [2024-09-12 18:54:29,197 INFO L226 Difference]: Without dead ends: 169 [2024-09-12 18:54:29,197 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:54:29,198 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 97 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:29,198 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 510 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:54:29,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-09-12 18:54:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-09-12 18:54:29,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 137 states have (on average 1.0364963503649636) internal successors, (142), 142 states have internal predecessors, (142), 18 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:54:29,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 176 transitions. [2024-09-12 18:54:29,264 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 176 transitions. Word has length 186 [2024-09-12 18:54:29,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:29,264 INFO L474 AbstractCegarLoop]: Abstraction has 169 states and 176 transitions. [2024-09-12 18:54:29,264 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.7) internal successors, (117), 11 states have internal predecessors, (117), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:29,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:29,264 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 176 transitions. [2024-09-12 18:54:29,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-09-12 18:54:29,265 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:29,266 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2024-09-12 18:54:29,282 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 18:54:29,466 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:29,467 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:29,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:29,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1400899781, now seen corresponding path program 1 times [2024-09-12 18:54:29,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:29,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034274138] [2024-09-12 18:54:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:29,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:29,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222886800] [2024-09-12 18:54:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:29,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:29,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:29,499 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 18:54:29,507 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 18:54:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:29,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:54:29,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-09-12 18:54:30,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:30,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:30,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034274138] [2024-09-12 18:54:30,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:30,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222886800] [2024-09-12 18:54:30,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222886800] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:30,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:30,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:54:30,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046290075] [2024-09-12 18:54:30,883 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:30,884 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:54:30,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:30,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:54:30,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:54:30,884 INFO L87 Difference]: Start difference. First operand 169 states and 176 transitions. Second operand has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:31,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:31,331 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2024-09-12 18:54:31,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:54:31,331 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 187 [2024-09-12 18:54:31,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:31,332 INFO L225 Difference]: With dead ends: 169 [2024-09-12 18:54:31,332 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 18:54:31,333 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:54:31,333 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 96 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:31,333 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 458 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:54:31,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 18:54:31,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-09-12 18:54:31,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 137 states have (on average 1.0291970802919708) internal successors, (141), 141 states have internal predecessors, (141), 18 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:54:31,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 175 transitions. [2024-09-12 18:54:31,407 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 175 transitions. Word has length 187 [2024-09-12 18:54:31,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:31,407 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 175 transitions. [2024-09-12 18:54:31,407 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:31,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:31,408 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 175 transitions. [2024-09-12 18:54:31,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-09-12 18:54:31,408 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:31,408 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2024-09-12 18:54:31,423 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:31,609 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 18:54:31,609 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:31,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:31,609 INFO L85 PathProgramCache]: Analyzing trace with hash -478220038, now seen corresponding path program 1 times [2024-09-12 18:54:31,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:31,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427401531] [2024-09-12 18:54:31,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:31,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:31,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910931624] [2024-09-12 18:54:31,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:31,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:31,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:31,627 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 18:54:31,631 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 18:54:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:31,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:54:31,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:32,245 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-09-12 18:54:32,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:32,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:32,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427401531] [2024-09-12 18:54:32,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:32,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910931624] [2024-09-12 18:54:32,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910931624] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:32,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:32,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:54:32,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207400687] [2024-09-12 18:54:32,405 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:32,405 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:54:32,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:32,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:54:32,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:54:32,406 INFO L87 Difference]: Start difference. First operand 168 states and 175 transitions. Second operand has 13 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:33,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:33,052 INFO L93 Difference]: Finished difference Result 168 states and 175 transitions. [2024-09-12 18:54:33,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:54:33,052 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 188 [2024-09-12 18:54:33,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:33,053 INFO L225 Difference]: With dead ends: 168 [2024-09-12 18:54:33,053 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 18:54:33,054 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:54:33,054 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 201 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:33,054 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 413 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:54:33,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 18:54:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-09-12 18:54:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 137 states have (on average 1.0218978102189782) internal successors, (140), 140 states have internal predecessors, (140), 18 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:54:33,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2024-09-12 18:54:33,117 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 188 [2024-09-12 18:54:33,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:33,117 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2024-09-12 18:54:33,117 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:33,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:33,117 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2024-09-12 18:54:33,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-09-12 18:54:33,118 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:33,118 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2024-09-12 18:54:33,130 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 18:54:33,318 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-09-12 18:54:33,319 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:33,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:33,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1939919075, now seen corresponding path program 1 times [2024-09-12 18:54:33,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:33,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583828873] [2024-09-12 18:54:33,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:33,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:33,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933727939] [2024-09-12 18:54:33,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:33,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:33,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:33,336 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 18:54:33,339 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 18:54:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:33,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:54:33,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:34,049 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-09-12 18:54:34,050 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:35,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:35,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583828873] [2024-09-12 18:54:35,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:35,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933727939] [2024-09-12 18:54:35,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933727939] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:35,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:35,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:54:35,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044384494] [2024-09-12 18:54:35,002 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:35,002 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:54:35,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:35,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:54:35,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:54:35,003 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand has 13 states, 12 states have (on average 10.0) internal successors, (120), 13 states have internal predecessors, (120), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:35,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:35,727 INFO L93 Difference]: Finished difference Result 167 states and 174 transitions. [2024-09-12 18:54:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:54:35,728 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.0) internal successors, (120), 13 states have internal predecessors, (120), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 189 [2024-09-12 18:54:35,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:35,729 INFO L225 Difference]: With dead ends: 167 [2024-09-12 18:54:35,729 INFO L226 Difference]: Without dead ends: 166 [2024-09-12 18:54:35,729 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:54:35,729 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 199 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:35,729 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 415 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:54:35,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-09-12 18:54:35,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-09-12 18:54:35,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 137 states have (on average 1.0145985401459854) internal successors, (139), 139 states have internal predecessors, (139), 18 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:54:35,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 173 transitions. [2024-09-12 18:54:35,800 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 173 transitions. Word has length 189 [2024-09-12 18:54:35,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:35,800 INFO L474 AbstractCegarLoop]: Abstraction has 166 states and 173 transitions. [2024-09-12 18:54:35,800 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.0) internal successors, (120), 13 states have internal predecessors, (120), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:35,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:35,800 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 173 transitions. [2024-09-12 18:54:35,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-09-12 18:54:35,801 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:35,801 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2024-09-12 18:54:35,815 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:36,001 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-09-12 18:54:36,002 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:36,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash -7948964, now seen corresponding path program 1 times [2024-09-12 18:54:36,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:36,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125700683] [2024-09-12 18:54:36,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:36,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:36,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859846597] [2024-09-12 18:54:36,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:36,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:36,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:36,019 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 18:54:36,020 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 18:54:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:36,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:54:36,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-09-12 18:54:36,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:36,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:36,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125700683] [2024-09-12 18:54:36,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:36,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859846597] [2024-09-12 18:54:36,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859846597] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:36,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:36,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:54:36,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868997445] [2024-09-12 18:54:36,868 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:36,868 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:54:36,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:36,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:54:36,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:54:36,869 INFO L87 Difference]: Start difference. First operand 166 states and 173 transitions. Second operand has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:37,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:37,361 INFO L93 Difference]: Finished difference Result 166 states and 173 transitions. [2024-09-12 18:54:37,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:54:37,362 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 190 [2024-09-12 18:54:37,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:37,364 INFO L225 Difference]: With dead ends: 166 [2024-09-12 18:54:37,364 INFO L226 Difference]: Without dead ends: 165 [2024-09-12 18:54:37,364 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:54:37,364 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 95 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:37,364 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 443 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:54:37,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-09-12 18:54:37,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-09-12 18:54:37,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 137 states have (on average 1.0072992700729928) internal successors, (138), 138 states have internal predecessors, (138), 18 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:54:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 172 transitions. [2024-09-12 18:54:37,425 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 172 transitions. Word has length 190 [2024-09-12 18:54:37,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:37,426 INFO L474 AbstractCegarLoop]: Abstraction has 165 states and 172 transitions. [2024-09-12 18:54:37,426 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:37,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:37,426 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 172 transitions. [2024-09-12 18:54:37,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-09-12 18:54:37,427 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:37,427 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:37,439 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:37,627 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:37,628 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:37,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:37,628 INFO L85 PathProgramCache]: Analyzing trace with hash -246417665, now seen corresponding path program 1 times [2024-09-12 18:54:37,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:37,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067097120] [2024-09-12 18:54:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:37,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:37,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920652358] [2024-09-12 18:54:37,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:37,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:37,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:37,646 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 18:54:37,648 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 18:54:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:37,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:54:37,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:38,491 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-09-12 18:54:38,491 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:40,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:40,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067097120] [2024-09-12 18:54:40,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:40,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920652358] [2024-09-12 18:54:40,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920652358] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:40,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:40,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:54:40,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247698843] [2024-09-12 18:54:40,431 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:40,431 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:54:40,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:40,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:54:40,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=144, Unknown=1, NotChecked=0, Total=182 [2024-09-12 18:54:40,432 INFO L87 Difference]: Start difference. First operand 165 states and 172 transitions. Second operand has 12 states, 11 states have (on average 11.090909090909092) internal successors, (122), 12 states have internal predecessors, (122), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:41,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:41,376 INFO L93 Difference]: Finished difference Result 165 states and 172 transitions. [2024-09-12 18:54:41,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:54:41,376 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.090909090909092) internal successors, (122), 12 states have internal predecessors, (122), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 191 [2024-09-12 18:54:41,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:41,377 INFO L225 Difference]: With dead ends: 165 [2024-09-12 18:54:41,377 INFO L226 Difference]: Without dead ends: 164 [2024-09-12 18:54:41,378 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=70, Invalid=271, Unknown=1, NotChecked=0, Total=342 [2024-09-12 18:54:41,378 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 90 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:41,378 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 511 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:54:41,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-09-12 18:54:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-09-12 18:54:41,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 137 states have (on average 1.0) internal successors, (137), 137 states have internal predecessors, (137), 18 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:54:41,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 171 transitions. [2024-09-12 18:54:41,442 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 171 transitions. Word has length 191 [2024-09-12 18:54:41,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:41,442 INFO L474 AbstractCegarLoop]: Abstraction has 164 states and 171 transitions. [2024-09-12 18:54:41,442 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.090909090909092) internal successors, (122), 12 states have internal predecessors, (122), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:54:41,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 171 transitions. [2024-09-12 18:54:41,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-09-12 18:54:41,443 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:41,443 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 9, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:41,461 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 18:54:41,644 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:41,644 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:41,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:41,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1256714589, now seen corresponding path program 1 times [2024-09-12 18:54:41,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:41,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297040164] [2024-09-12 18:54:41,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:41,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:41,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049044196] [2024-09-12 18:54:41,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:41,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:41,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:41,666 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 18:54:41,667 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 18:54:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:41,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 18:54:41,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 18 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-09-12 18:54:43,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:43,815 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 18 proven. 44 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-09-12 18:54:43,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:43,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297040164] [2024-09-12 18:54:43,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:43,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049044196] [2024-09-12 18:54:43,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049044196] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:54:43,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:54:43,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 22 [2024-09-12 18:54:43,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095267361] [2024-09-12 18:54:43,816 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:43,816 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:54:43,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:43,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:54:43,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:54:43,817 INFO L87 Difference]: Start difference. First operand 164 states and 171 transitions. Second operand has 22 states, 22 states have (on average 10.727272727272727) internal successors, (236), 21 states have internal predecessors, (236), 10 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 18:54:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:44,761 INFO L93 Difference]: Finished difference Result 164 states and 171 transitions. [2024-09-12 18:54:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:54:44,762 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.727272727272727) internal successors, (236), 21 states have internal predecessors, (236), 10 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 195 [2024-09-12 18:54:44,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:44,763 INFO L225 Difference]: With dead ends: 164 [2024-09-12 18:54:44,763 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:54:44,764 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 367 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:54:44,764 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 343 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:44,764 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 443 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:54:44,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:54:44,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:54:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 18:54:44,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:54:44,765 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 195 [2024-09-12 18:54:44,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:44,766 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:54:44,766 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.727272727272727) internal successors, (236), 21 states have internal predecessors, (236), 10 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 18:54:44,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:44,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:54:44,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:54:44,769 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 65 remaining) [2024-09-12 18:54:44,769 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 65 remaining) [2024-09-12 18:54:44,770 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 65 remaining) [2024-09-12 18:54:44,770 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 65 remaining) [2024-09-12 18:54:44,770 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 65 remaining) [2024-09-12 18:54:44,770 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 65 remaining) [2024-09-12 18:54:44,770 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 65 remaining) [2024-09-12 18:54:44,770 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 65 remaining) [2024-09-12 18:54:44,770 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 65 remaining) [2024-09-12 18:54:44,771 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 65 remaining) [2024-09-12 18:54:44,771 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 65 remaining) [2024-09-12 18:54:44,771 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 65 remaining) [2024-09-12 18:54:44,771 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 65 remaining) [2024-09-12 18:54:44,771 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 65 remaining) [2024-09-12 18:54:44,771 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 65 remaining) [2024-09-12 18:54:44,772 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 65 remaining) [2024-09-12 18:54:44,772 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 65 remaining) [2024-09-12 18:54:44,772 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 65 remaining) [2024-09-12 18:54:44,772 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 65 remaining) [2024-09-12 18:54:44,773 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 65 remaining) [2024-09-12 18:54:44,773 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 65 remaining) [2024-09-12 18:54:44,773 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 65 remaining) [2024-09-12 18:54:44,774 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 65 remaining) [2024-09-12 18:54:44,774 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 65 remaining) [2024-09-12 18:54:44,774 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 65 remaining) [2024-09-12 18:54:44,774 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 65 remaining) [2024-09-12 18:54:44,774 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 65 remaining) [2024-09-12 18:54:44,774 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 65 remaining) [2024-09-12 18:54:44,774 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 65 remaining) [2024-09-12 18:54:44,775 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 65 remaining) [2024-09-12 18:54:44,775 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 65 remaining) [2024-09-12 18:54:44,775 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 65 remaining) [2024-09-12 18:54:44,775 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 65 remaining) [2024-09-12 18:54:44,775 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 65 remaining) [2024-09-12 18:54:44,775 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 65 remaining) [2024-09-12 18:54:44,775 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 65 remaining) [2024-09-12 18:54:44,775 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 65 remaining) [2024-09-12 18:54:44,776 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 65 remaining) [2024-09-12 18:54:44,776 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 65 remaining) [2024-09-12 18:54:44,776 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 65 remaining) [2024-09-12 18:54:44,776 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 65 remaining) [2024-09-12 18:54:44,776 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 65 remaining) [2024-09-12 18:54:44,776 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 65 remaining) [2024-09-12 18:54:44,776 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 65 remaining) [2024-09-12 18:54:44,776 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 65 remaining) [2024-09-12 18:54:44,777 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 65 remaining) [2024-09-12 18:54:44,777 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 65 remaining) [2024-09-12 18:54:44,777 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 65 remaining) [2024-09-12 18:54:44,777 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 65 remaining) [2024-09-12 18:54:44,777 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 65 remaining) [2024-09-12 18:54:44,777 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 65 remaining) [2024-09-12 18:54:44,777 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 65 remaining) [2024-09-12 18:54:44,777 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 65 remaining) [2024-09-12 18:54:44,778 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 65 remaining) [2024-09-12 18:54:44,778 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 65 remaining) [2024-09-12 18:54:44,778 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 65 remaining) [2024-09-12 18:54:44,778 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 65 remaining) [2024-09-12 18:54:44,778 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 65 remaining) [2024-09-12 18:54:44,778 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 65 remaining) [2024-09-12 18:54:44,778 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 65 remaining) [2024-09-12 18:54:44,778 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 65 remaining) [2024-09-12 18:54:44,779 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 65 remaining) [2024-09-12 18:54:44,779 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 65 remaining) [2024-09-12 18:54:44,779 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 65 remaining) [2024-09-12 18:54:44,779 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 65 remaining) [2024-09-12 18:54:44,797 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 18:54:44,979 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-09-12 18:54:44,982 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:44,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 18:54:53,458 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 18:54:53,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 06:54:53 BoogieIcfgContainer [2024-09-12 18:54:53,476 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 18:54:53,477 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 18:54:53,477 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 18:54:53,477 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 18:54:53,477 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:52:00" (3/4) ... [2024-09-12 18:54:53,479 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 18:54:53,483 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 18:54:53,484 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-09-12 18:54:53,484 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 18:54:53,484 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 18:54:53,489 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-09-12 18:54:53,489 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-09-12 18:54:53,490 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-09-12 18:54:53,490 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-09-12 18:54:53,578 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 18:54:53,578 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 18:54:53,578 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 18:54:53,578 INFO L158 Benchmark]: Toolchain (without parser) took 174858.11ms. Allocated memory was 62.9MB in the beginning and 272.6MB in the end (delta: 209.7MB). Free memory was 39.2MB in the beginning and 86.7MB in the end (delta: -47.5MB). Peak memory consumption was 162.7MB. Max. memory is 16.1GB. [2024-09-12 18:54:53,579 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 62.9MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 18:54:53,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.58ms. Allocated memory is still 62.9MB. Free memory was 39.0MB in the beginning and 26.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 18:54:53,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.79ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 26.6MB in the beginning and 68.6MB in the end (delta: -42.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-09-12 18:54:53,579 INFO L158 Benchmark]: Boogie Preprocessor took 50.18ms. Allocated memory is still 88.1MB. Free memory was 68.6MB in the beginning and 66.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 18:54:53,579 INFO L158 Benchmark]: RCFGBuilder took 1258.79ms. Allocated memory is still 88.1MB. Free memory was 66.8MB in the beginning and 64.9MB in the end (delta: 1.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-09-12 18:54:53,579 INFO L158 Benchmark]: TraceAbstraction took 173138.23ms. Allocated memory was 88.1MB in the beginning and 272.6MB in the end (delta: 184.5MB). Free memory was 64.0MB in the beginning and 94.0MB in the end (delta: -30.0MB). Peak memory consumption was 165.0MB. Max. memory is 16.1GB. [2024-09-12 18:54:53,579 INFO L158 Benchmark]: Witness Printer took 101.57ms. Allocated memory is still 272.6MB. Free memory was 94.0MB in the beginning and 86.7MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 18:54:53,580 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 62.9MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.58ms. Allocated memory is still 62.9MB. Free memory was 39.0MB in the beginning and 26.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.79ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 26.6MB in the beginning and 68.6MB in the end (delta: -42.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.18ms. Allocated memory is still 88.1MB. Free memory was 68.6MB in the beginning and 66.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1258.79ms. Allocated memory is still 88.1MB. Free memory was 66.8MB in the beginning and 64.9MB in the end (delta: 1.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 173138.23ms. Allocated memory was 88.1MB in the beginning and 272.6MB in the end (delta: 184.5MB). Free memory was 64.0MB in the beginning and 94.0MB in the end (delta: -30.0MB). Peak memory consumption was 165.0MB. Max. memory is 16.1GB. * Witness Printer took 101.57ms. Allocated memory is still 272.6MB. Free memory was 94.0MB in the beginning and 86.7MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 166 locations, 65 error locations. Started 1 CEGAR loops. OverallTime: 164.6s, OverallIterations: 59, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 53.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 14205 SdHoareTripleChecker+Valid, 44.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13989 mSDsluCounter, 26377 SdHoareTripleChecker+Invalid, 41.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19548 mSDsCounter, 952 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35496 IncrementalHoareTripleChecker+Invalid, 36452 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 952 mSolverCounterUnsat, 6829 mSDtfsCounter, 35496 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7940 GetRequests, 7239 SyntacticMatches, 12 SemanticMatches, 689 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2071 ImplicationChecksByTransitivity, 67.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=693occurred in iteration=39, InterpolantAutomatonStates: 520, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 59 MinimizatonAttempts, 1921 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 90.8s InterpolantComputationTime, 12410 NumberOfCodeBlocks, 12410 NumberOfCodeBlocksAsserted, 112 NumberOfCheckSat, 8708 ConstructedInterpolants, 60 QuantifiedInterpolants, 53496 SizeOfPredicates, 81 NumberOfNonLiveVariables, 11140 ConjunctsInSsa, 619 ConjunctsInUnsatCore, 81 InterpolantComputations, 33 PerfectInterpolantSequences, 8272/9662 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 65 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((a == 1) && (r == 0)) && (b == 1)) && (y == 1)) && (k == 0)) && (s == 1)) && (x == 1)) && (q == 0)) && (yy == 1)) && (c == 1)) && (p == 1)) || (((((((((((a == 1) && (r == 0)) && (b == 1)) && (y == 1)) && (s == 1)) && (x == 1)) && (k == 1)) && (q == 0)) && (c == 0)) && (yy == 1)) && (p == 1))) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: (((((((((a == 1) && (b == 0)) && (p == 0)) && (y == 1)) && (r == 1)) && (x == 1)) && (q == 1)) && (((__int128) s + 1) == 0)) || (((((((((a == 1) && (r == 0)) && (b == 1)) && (y == 1)) && (s == 1)) && (x == 1)) && (q == 0)) && (yy == 1)) && (p == 1))) - ProcedureContractResult [Line: 7]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (\old(cond) != 0) - ProcedureContractResult [Line: 10]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-12 18:54:53,709 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE