./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/cohendiv-ll.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/cohendiv-ll.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 601ddeb38cc85433f6271611bfd2617c2fcbf2b89119dbe2c319aedc14aa3b17 --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 18:25:27,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:25:27,784 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:25:27,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:25:27,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:25:27,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:25:27,828 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:25:27,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:25:27,829 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:25:27,829 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:25:27,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:25:27,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:25:27,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:25:27,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:25:27,834 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:25:27,835 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:25:27,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:25:27,835 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:25:27,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:25:27,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:25:27,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:25:27,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:25:27,841 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:25:27,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:25:27,841 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:25:27,842 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:25:27,842 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:25:27,842 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:25:27,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:25:27,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:25:27,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:25:27,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:25:27,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:25:27,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:25:27,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:25:27,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:25:27,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:25:27,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:25:27,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:25:27,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:25:27,849 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:25:27,849 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:25:27,849 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 601ddeb38cc85433f6271611bfd2617c2fcbf2b89119dbe2c319aedc14aa3b17 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:25:28,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:25:28,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:25:28,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:25:28,255 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:25:28,256 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:25:28,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench/cohendiv-ll.c [2024-09-12 18:25:29,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:25:30,024 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:25:30,025 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/cohendiv-ll.c [2024-09-12 18:25:30,032 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/47eb20d28/7e792fab2ad24861974ba5d4021f77f7/FLAGa25e98db5 [2024-09-12 18:25:30,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/47eb20d28/7e792fab2ad24861974ba5d4021f77f7 [2024-09-12 18:25:30,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:25:30,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:25:30,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:25:30,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:25:30,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:25:30,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5ca815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30, skipping insertion in model container [2024-09-12 18:25:30,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:25:30,246 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/cohendiv-ll.c[576,589] [2024-09-12 18:25:30,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:25:30,281 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:25:30,304 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/cohendiv-ll.c[576,589] [2024-09-12 18:25:30,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:25:30,339 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:25:30,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30 WrapperNode [2024-09-12 18:25:30,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:25:30,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:25:30,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:25:30,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:25:30,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,367 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:25:30,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:25:30,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:25:30,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:25:30,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:25:30,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,386 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,407 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 18:25:30,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:25:30,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:25:30,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:25:30,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:25:30,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (1/1) ... [2024-09-12 18:25:30,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:25:30,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:30,462 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 18:25:30,469 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 18:25:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:25:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:25:30,517 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:25:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:25:30,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:25:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:25:30,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:25:30,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:25:30,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:25:30,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:25:30,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:25:30,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:25:30,589 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:25:30,591 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:25:31,013 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-09-12 18:25:31,013 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:25:31,044 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:25:31,044 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 18:25:31,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:25:31 BoogieIcfgContainer [2024-09-12 18:25:31,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:25:31,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:25:31,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:25:31,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:25:31,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:25:30" (1/3) ... [2024-09-12 18:25:31,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4091619d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:25:31, skipping insertion in model container [2024-09-12 18:25:31,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:25:30" (2/3) ... [2024-09-12 18:25:31,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4091619d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:25:31, skipping insertion in model container [2024-09-12 18:25:31,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:25:31" (3/3) ... [2024-09-12 18:25:31,056 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll.c [2024-09-12 18:25:31,075 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:25:31,075 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2024-09-12 18:25:31,147 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:25:31,156 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;@1fd71687, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:25:31,157 INFO L337 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-09-12 18:25:31,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 46 states have (on average 1.8478260869565217) internal successors, (85), 77 states have internal predecessors, (85), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:25:31,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:25:31,173 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:31,174 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:31,175 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:31,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:31,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1480095208, now seen corresponding path program 1 times [2024-09-12 18:25:31,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:31,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599402773] [2024-09-12 18:25:31,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:31,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:31,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:31,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:31,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:31,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:31,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599402773] [2024-09-12 18:25:31,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599402773] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:31,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:31,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:25:31,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222309250] [2024-09-12 18:25:31,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:31,331 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:25:31,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:31,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:25:31,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:25:31,353 INFO L87 Difference]: Start difference. First operand has 92 states, 46 states have (on average 1.8478260869565217) internal successors, (85), 77 states have internal predecessors, (85), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:25:31,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:31,404 INFO L93 Difference]: Finished difference Result 176 states and 208 transitions. [2024-09-12 18:25:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:25:31,407 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 18:25:31,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:31,413 INFO L225 Difference]: With dead ends: 176 [2024-09-12 18:25:31,414 INFO L226 Difference]: Without dead ends: 88 [2024-09-12 18:25:31,417 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:25:31,421 INFO L434 NwaCegarLoop]: 97 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, 97 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 18:25:31,422 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:25:31,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-09-12 18:25:31,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-09-12 18:25:31,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 44 states have (on average 1.75) internal successors, (77), 75 states have internal predecessors, (77), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:25:31,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2024-09-12 18:25:31,478 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 13 [2024-09-12 18:25:31,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:31,479 INFO L474 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2024-09-12 18:25:31,479 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:25:31,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:31,480 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2024-09-12 18:25:31,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:25:31,481 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:31,481 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:31,482 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:25:31,482 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:31,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:31,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1422836927, now seen corresponding path program 1 times [2024-09-12 18:25:31,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:31,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066170716] [2024-09-12 18:25:31,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:31,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:31,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198425374] [2024-09-12 18:25:31,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:31,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:31,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:31,531 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 18:25:31,533 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 18:25:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:31,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:25:31,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:31,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:31,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:31,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:31,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066170716] [2024-09-12 18:25:31,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:31,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198425374] [2024-09-12 18:25:31,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198425374] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:31,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:31,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:25:31,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577974281] [2024-09-12 18:25:31,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:31,641 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:25:31,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:31,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:25:31,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:25:31,644 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:25:31,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:31,821 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2024-09-12 18:25:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:25:31,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 18:25:31,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:31,823 INFO L225 Difference]: With dead ends: 113 [2024-09-12 18:25:31,826 INFO L226 Difference]: Without dead ends: 111 [2024-09-12 18:25:31,827 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:25:31,828 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 19 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:31,829 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 163 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:25:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-09-12 18:25:31,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 91. [2024-09-12 18:25:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 47 states have (on average 1.702127659574468) internal successors, (80), 78 states have internal predecessors, (80), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:25:31,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2024-09-12 18:25:31,855 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 13 [2024-09-12 18:25:31,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:31,855 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2024-09-12 18:25:31,855 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:25:31,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:31,856 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2024-09-12 18:25:31,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 18:25:31,858 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:31,858 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:31,877 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:32,060 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 18:25:32,061 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:32,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:32,062 INFO L85 PathProgramCache]: Analyzing trace with hash -876236661, now seen corresponding path program 1 times [2024-09-12 18:25:32,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:32,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569711560] [2024-09-12 18:25:32,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:32,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:32,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754885434] [2024-09-12 18:25:32,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:32,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:32,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:32,105 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 18:25:32,106 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 18:25:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:32,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:25:32,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:32,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:32,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:32,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:32,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569711560] [2024-09-12 18:25:32,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:32,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754885434] [2024-09-12 18:25:32,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754885434] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:32,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:32,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:25:32,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118424794] [2024-09-12 18:25:32,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:32,279 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:25:32,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:32,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:25:32,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:25:32,281 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:25:32,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:32,447 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2024-09-12 18:25:32,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:25:32,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-09-12 18:25:32,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:32,450 INFO L225 Difference]: With dead ends: 117 [2024-09-12 18:25:32,450 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 18:25:32,450 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 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 18:25:32,452 INFO L434 NwaCegarLoop]: 89 mSDtfsCounter, 20 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:32,453 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 315 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:25:32,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 18:25:32,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 96. [2024-09-12 18:25:32,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 50 states have (on average 1.66) internal successors, (83), 82 states have internal predecessors, (83), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:25:32,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2024-09-12 18:25:32,469 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 18 [2024-09-12 18:25:32,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:32,470 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2024-09-12 18:25:32,470 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:25:32,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:32,471 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2024-09-12 18:25:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 18:25:32,471 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:32,472 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:32,489 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:32,675 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 18:25:32,676 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:32,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:32,676 INFO L85 PathProgramCache]: Analyzing trace with hash -249683168, now seen corresponding path program 1 times [2024-09-12 18:25:32,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:32,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151404287] [2024-09-12 18:25:32,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:32,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:32,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592301859] [2024-09-12 18:25:32,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:32,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:32,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:32,700 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 18:25:32,702 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 18:25:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:32,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:25:32,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:32,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:32,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:32,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:32,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151404287] [2024-09-12 18:25:32,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:32,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592301859] [2024-09-12 18:25:32,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592301859] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:32,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:32,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:25:32,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010511697] [2024-09-12 18:25:32,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:32,775 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:25:32,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:32,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:25:32,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:25:32,776 INFO L87 Difference]: Start difference. First operand 96 states and 103 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:25:32,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:32,910 INFO L93 Difference]: Finished difference Result 153 states and 175 transitions. [2024-09-12 18:25:32,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:25:32,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-09-12 18:25:32,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:32,913 INFO L225 Difference]: With dead ends: 153 [2024-09-12 18:25:32,913 INFO L226 Difference]: Without dead ends: 147 [2024-09-12 18:25:32,913 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 18:25:32,914 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 46 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:32,915 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 136 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:25:32,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-09-12 18:25:32,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 126. [2024-09-12 18:25:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 75 states have (on average 1.68) internal successors, (126), 106 states have internal predecessors, (126), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:25:32,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2024-09-12 18:25:32,937 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 20 [2024-09-12 18:25:32,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:32,937 INFO L474 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2024-09-12 18:25:32,937 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:25:32,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:32,938 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2024-09-12 18:25:32,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:25:32,939 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:32,939 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:32,955 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:33,139 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 18:25:33,140 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:33,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:33,140 INFO L85 PathProgramCache]: Analyzing trace with hash 572646146, now seen corresponding path program 1 times [2024-09-12 18:25:33,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:33,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365409151] [2024-09-12 18:25:33,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:33,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:33,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925173197] [2024-09-12 18:25:33,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:33,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:33,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:33,175 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 18:25:33,178 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 18:25:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:33,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:25:33,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:33,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:33,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:33,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365409151] [2024-09-12 18:25:33,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:33,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925173197] [2024-09-12 18:25:33,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925173197] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:33,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:33,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:33,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91448989] [2024-09-12 18:25:33,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:33,288 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:33,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:33,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:33,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:33,289 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:33,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:33,529 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2024-09-12 18:25:33,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:25:33,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2024-09-12 18:25:33,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:33,539 INFO L225 Difference]: With dead ends: 146 [2024-09-12 18:25:33,539 INFO L226 Difference]: Without dead ends: 143 [2024-09-12 18:25:33,540 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:25:33,541 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 158 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:33,543 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 145 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:33,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-09-12 18:25:33,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 127. [2024-09-12 18:25:33,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 76 states have (on average 1.644736842105263) internal successors, (125), 107 states have internal predecessors, (125), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:25:33,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 155 transitions. [2024-09-12 18:25:33,575 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 155 transitions. Word has length 22 [2024-09-12 18:25:33,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:33,575 INFO L474 AbstractCegarLoop]: Abstraction has 127 states and 155 transitions. [2024-09-12 18:25:33,576 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:33,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:33,577 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 155 transitions. [2024-09-12 18:25:33,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 18:25:33,577 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:33,577 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:33,595 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:33,778 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 18:25:33,778 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:33,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:33,779 INFO L85 PathProgramCache]: Analyzing trace with hash 572161409, now seen corresponding path program 1 times [2024-09-12 18:25:33,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:33,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139211143] [2024-09-12 18:25:33,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:33,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:33,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556419992] [2024-09-12 18:25:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:33,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:33,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:33,795 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 18:25:33,799 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 18:25:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:33,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:25:33,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:33,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:33,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:33,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:33,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139211143] [2024-09-12 18:25:33,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:33,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556419992] [2024-09-12 18:25:33,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556419992] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:33,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:33,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:33,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692445949] [2024-09-12 18:25:33,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:33,913 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:33,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:33,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:33,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:33,914 INFO L87 Difference]: Start difference. First operand 127 states and 155 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:34,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:34,153 INFO L93 Difference]: Finished difference Result 146 states and 162 transitions. [2024-09-12 18:25:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:25:34,154 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2024-09-12 18:25:34,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:34,156 INFO L225 Difference]: With dead ends: 146 [2024-09-12 18:25:34,156 INFO L226 Difference]: Without dead ends: 143 [2024-09-12 18:25:34,158 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:25:34,161 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 154 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:34,162 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 148 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:34,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-09-12 18:25:34,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 128. [2024-09-12 18:25:34,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 77 states have (on average 1.6103896103896105) internal successors, (124), 108 states have internal predecessors, (124), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:25:34,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 154 transitions. [2024-09-12 18:25:34,206 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 154 transitions. Word has length 23 [2024-09-12 18:25:34,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:34,207 INFO L474 AbstractCegarLoop]: Abstraction has 128 states and 154 transitions. [2024-09-12 18:25:34,207 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:25:34,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 154 transitions. [2024-09-12 18:25:34,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 18:25:34,208 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:34,208 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:34,227 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:34,413 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 18:25:34,414 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:34,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:34,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1845261745, now seen corresponding path program 1 times [2024-09-12 18:25:34,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:34,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953627317] [2024-09-12 18:25:34,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:34,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:34,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627310603] [2024-09-12 18:25:34,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:34,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:34,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:34,449 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 18:25:34,451 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 18:25:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:34,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:25:34,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:25:34,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:34,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:34,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953627317] [2024-09-12 18:25:34,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:34,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627310603] [2024-09-12 18:25:34,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627310603] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:34,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:34,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:25:34,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816471013] [2024-09-12 18:25:34,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:34,581 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:25:34,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:34,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:25:34,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:25:34,584 INFO L87 Difference]: Start difference. First operand 128 states and 154 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:25:34,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:34,794 INFO L93 Difference]: Finished difference Result 149 states and 164 transitions. [2024-09-12 18:25:34,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:25:34,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-09-12 18:25:34,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:34,796 INFO L225 Difference]: With dead ends: 149 [2024-09-12 18:25:34,796 INFO L226 Difference]: Without dead ends: 142 [2024-09-12 18:25:34,796 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 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 18:25:34,797 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 41 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:34,797 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 264 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:34,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-09-12 18:25:34,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 128. [2024-09-12 18:25:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 76 states have (on average 1.605263157894737) internal successors, (122), 107 states have internal predecessors, (122), 16 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:25:34,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 152 transitions. [2024-09-12 18:25:34,823 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 152 transitions. Word has length 27 [2024-09-12 18:25:34,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:34,824 INFO L474 AbstractCegarLoop]: Abstraction has 128 states and 152 transitions. [2024-09-12 18:25:34,824 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:25:34,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:34,824 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 152 transitions. [2024-09-12 18:25:34,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 18:25:34,825 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:34,825 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:34,845 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:35,025 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 18:25:35,026 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:35,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:35,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1819886254, now seen corresponding path program 1 times [2024-09-12 18:25:35,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:35,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413422510] [2024-09-12 18:25:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:35,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:35,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044171242] [2024-09-12 18:25:35,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:35,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:35,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:35,050 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 18:25:35,052 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 18:25:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:35,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:25:35,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:35,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:25:35,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:35,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:35,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413422510] [2024-09-12 18:25:35,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:35,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044171242] [2024-09-12 18:25:35,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044171242] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:35,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:35,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:35,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626734257] [2024-09-12 18:25:35,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:35,146 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:35,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:35,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:35,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:35,147 INFO L87 Difference]: Start difference. First operand 128 states and 152 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:25:35,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:35,475 INFO L93 Difference]: Finished difference Result 196 states and 262 transitions. [2024-09-12 18:25:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:25:35,475 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2024-09-12 18:25:35,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:35,478 INFO L225 Difference]: With dead ends: 196 [2024-09-12 18:25:35,478 INFO L226 Difference]: Without dead ends: 191 [2024-09-12 18:25:35,478 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 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 18:25:35,479 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 76 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:35,480 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 109 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:25:35,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-09-12 18:25:35,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 174. [2024-09-12 18:25:35,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 114 states have (on average 1.5964912280701755) internal successors, (182), 145 states have internal predecessors, (182), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:25:35,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 228 transitions. [2024-09-12 18:25:35,525 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 228 transitions. Word has length 31 [2024-09-12 18:25:35,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:35,525 INFO L474 AbstractCegarLoop]: Abstraction has 174 states and 228 transitions. [2024-09-12 18:25:35,525 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:25:35,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:35,526 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 228 transitions. [2024-09-12 18:25:35,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 18:25:35,527 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:35,527 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:35,544 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:35,730 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 18:25:35,731 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:35,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:35,731 INFO L85 PathProgramCache]: Analyzing trace with hash -581898940, now seen corresponding path program 1 times [2024-09-12 18:25:35,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:35,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366622000] [2024-09-12 18:25:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:35,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:35,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118721317] [2024-09-12 18:25:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:35,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:35,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:35,750 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 18:25:35,753 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 18:25:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:35,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:25:35,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:35,853 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:25:35,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:35,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:35,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366622000] [2024-09-12 18:25:35,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:35,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118721317] [2024-09-12 18:25:35,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118721317] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:35,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:35,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:35,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758789448] [2024-09-12 18:25:35,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:35,857 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:35,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:35,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:35,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:35,858 INFO L87 Difference]: Start difference. First operand 174 states and 228 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:25:36,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:36,027 INFO L93 Difference]: Finished difference Result 194 states and 253 transitions. [2024-09-12 18:25:36,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:25:36,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-09-12 18:25:36,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:36,029 INFO L225 Difference]: With dead ends: 194 [2024-09-12 18:25:36,029 INFO L226 Difference]: Without dead ends: 191 [2024-09-12 18:25:36,029 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 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 18:25:36,030 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 102 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:36,030 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 88 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:25:36,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-09-12 18:25:36,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 175. [2024-09-12 18:25:36,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 115 states have (on average 1.5565217391304347) internal successors, (179), 146 states have internal predecessors, (179), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:25:36,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 225 transitions. [2024-09-12 18:25:36,085 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 225 transitions. Word has length 32 [2024-09-12 18:25:36,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:36,085 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 225 transitions. [2024-09-12 18:25:36,086 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:25:36,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:36,087 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 225 transitions. [2024-09-12 18:25:36,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:25:36,088 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:36,088 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:36,107 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 18:25:36,288 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 18:25:36,289 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:36,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:36,290 INFO L85 PathProgramCache]: Analyzing trace with hash -987745102, now seen corresponding path program 1 times [2024-09-12 18:25:36,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:36,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003934990] [2024-09-12 18:25:36,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:36,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:36,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1887880612] [2024-09-12 18:25:36,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:36,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:36,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:36,308 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 18:25:36,309 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 18:25:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:36,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:25:36,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:36,394 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:25:36,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:36,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:36,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003934990] [2024-09-12 18:25:36,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:36,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887880612] [2024-09-12 18:25:36,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887880612] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:36,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:36,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:25:36,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810267495] [2024-09-12 18:25:36,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:36,397 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:25:36,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:36,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:25:36,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:25:36,398 INFO L87 Difference]: Start difference. First operand 175 states and 225 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:25:36,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:36,801 INFO L93 Difference]: Finished difference Result 193 states and 253 transitions. [2024-09-12 18:25:36,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:25:36,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2024-09-12 18:25:36,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:36,804 INFO L225 Difference]: With dead ends: 193 [2024-09-12 18:25:36,804 INFO L226 Difference]: Without dead ends: 191 [2024-09-12 18:25:36,805 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 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 18:25:36,806 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 32 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:36,808 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 176 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:25:36,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-09-12 18:25:36,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 180. [2024-09-12 18:25:36,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 118 states have (on average 1.5423728813559323) internal successors, (182), 150 states have internal predecessors, (182), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:25:36,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 230 transitions. [2024-09-12 18:25:36,860 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 230 transitions. Word has length 36 [2024-09-12 18:25:36,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:36,863 INFO L474 AbstractCegarLoop]: Abstraction has 180 states and 230 transitions. [2024-09-12 18:25:36,863 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:25:36,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:36,863 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 230 transitions. [2024-09-12 18:25:36,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:25:36,866 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:36,867 INFO L216 NwaCegarLoop]: trace histogram [5, 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] [2024-09-12 18:25:36,886 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:37,067 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 18:25:37,067 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:37,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash 203458606, now seen corresponding path program 1 times [2024-09-12 18:25:37,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:37,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084138875] [2024-09-12 18:25:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:37,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,413 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:25:37,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:37,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084138875] [2024-09-12 18:25:37,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084138875] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:37,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:37,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-09-12 18:25:37,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773234602] [2024-09-12 18:25:37,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:37,414 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:25:37,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:37,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:25:37,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:25:37,415 INFO L87 Difference]: Start difference. First operand 180 states and 230 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:25:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:37,672 INFO L93 Difference]: Finished difference Result 186 states and 235 transitions. [2024-09-12 18:25:37,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:25:37,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 50 [2024-09-12 18:25:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:37,676 INFO L225 Difference]: With dead ends: 186 [2024-09-12 18:25:37,677 INFO L226 Difference]: Without dead ends: 183 [2024-09-12 18:25:37,678 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:25:37,678 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 68 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:37,679 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 248 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:37,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-09-12 18:25:37,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-09-12 18:25:37,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 121 states have (on average 1.4958677685950412) internal successors, (181), 152 states have internal predecessors, (181), 25 states have call successors, (25), 8 states have call predecessors, (25), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:25:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 229 transitions. [2024-09-12 18:25:37,729 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 229 transitions. Word has length 50 [2024-09-12 18:25:37,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:37,729 INFO L474 AbstractCegarLoop]: Abstraction has 183 states and 229 transitions. [2024-09-12 18:25:37,729 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:25:37,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:37,730 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 229 transitions. [2024-09-12 18:25:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 18:25:37,731 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:37,732 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:37,732 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 18:25:37,733 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:37,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:37,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2044616927, now seen corresponding path program 1 times [2024-09-12 18:25:37,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:37,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994158126] [2024-09-12 18:25:37,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:37,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:25:37,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:37,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994158126] [2024-09-12 18:25:37,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994158126] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:37,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:37,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:37,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705192758] [2024-09-12 18:25:37,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:37,842 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:37,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:37,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:37,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:37,843 INFO L87 Difference]: Start difference. First operand 183 states and 229 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, (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 18:25:38,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:38,291 INFO L93 Difference]: Finished difference Result 215 states and 258 transitions. [2024-09-12 18:25:38,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:25:38,291 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, (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 52 [2024-09-12 18:25:38,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:38,293 INFO L225 Difference]: With dead ends: 215 [2024-09-12 18:25:38,293 INFO L226 Difference]: Without dead ends: 213 [2024-09-12 18:25:38,294 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:25:38,294 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 116 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:38,294 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 95 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:25:38,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-09-12 18:25:38,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 185. [2024-09-12 18:25:38,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 123 states have (on average 1.4715447154471544) internal successors, (181), 154 states have internal predecessors, (181), 25 states have call successors, (25), 8 states have call predecessors, (25), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:25:38,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 229 transitions. [2024-09-12 18:25:38,334 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 229 transitions. Word has length 52 [2024-09-12 18:25:38,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:38,335 INFO L474 AbstractCegarLoop]: Abstraction has 185 states and 229 transitions. [2024-09-12 18:25:38,335 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, (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 18:25:38,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 229 transitions. [2024-09-12 18:25:38,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:25:38,338 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:38,338 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:38,339 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 18:25:38,339 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:38,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:38,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1041384804, now seen corresponding path program 1 times [2024-09-12 18:25:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478221118] [2024-09-12 18:25:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:38,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,431 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:25:38,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478221118] [2024-09-12 18:25:38,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478221118] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:38,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:38,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:38,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95409056] [2024-09-12 18:25:38,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:38,432 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:38,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:38,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:38,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:38,433 INFO L87 Difference]: Start difference. First operand 185 states and 229 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 18:25:38,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:38,622 INFO L93 Difference]: Finished difference Result 215 states and 254 transitions. [2024-09-12 18:25:38,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:25:38,623 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), 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 53 [2024-09-12 18:25:38,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:38,625 INFO L225 Difference]: With dead ends: 215 [2024-09-12 18:25:38,625 INFO L226 Difference]: Without dead ends: 213 [2024-09-12 18:25:38,626 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:25:38,626 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 113 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:38,628 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 97 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:25:38,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-09-12 18:25:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 187. [2024-09-12 18:25:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 125 states have (on average 1.448) internal successors, (181), 156 states have internal predecessors, (181), 25 states have call successors, (25), 8 states have call predecessors, (25), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:25:38,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 229 transitions. [2024-09-12 18:25:38,658 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 229 transitions. Word has length 53 [2024-09-12 18:25:38,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:38,660 INFO L474 AbstractCegarLoop]: Abstraction has 187 states and 229 transitions. [2024-09-12 18:25:38,661 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), 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 18:25:38,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 229 transitions. [2024-09-12 18:25:38,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:25:38,662 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:38,662 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:38,662 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 18:25:38,663 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:38,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:38,665 INFO L85 PathProgramCache]: Analyzing trace with hash 43420028, now seen corresponding path program 1 times [2024-09-12 18:25:38,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:38,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767818261] [2024-09-12 18:25:38,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:38,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:25:38,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:38,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767818261] [2024-09-12 18:25:38,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767818261] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:38,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:38,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:25:38,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428377352] [2024-09-12 18:25:38,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:38,735 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:25:38,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:38,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:25:38,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:25:38,736 INFO L87 Difference]: Start difference. First operand 187 states and 229 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 18:25:38,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:38,812 INFO L93 Difference]: Finished difference Result 191 states and 229 transitions. [2024-09-12 18:25:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:25:38,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 55 [2024-09-12 18:25:38,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:38,815 INFO L225 Difference]: With dead ends: 191 [2024-09-12 18:25:38,815 INFO L226 Difference]: Without dead ends: 190 [2024-09-12 18:25:38,815 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 18:25:38,816 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 12 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:38,816 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 143 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:25:38,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-09-12 18:25:38,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2024-09-12 18:25:38,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 125 states have (on average 1.44) internal successors, (180), 156 states have internal predecessors, (180), 25 states have call successors, (25), 8 states have call predecessors, (25), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:25:38,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 228 transitions. [2024-09-12 18:25:38,845 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 228 transitions. Word has length 55 [2024-09-12 18:25:38,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:38,845 INFO L474 AbstractCegarLoop]: Abstraction has 187 states and 228 transitions. [2024-09-12 18:25:38,845 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 18:25:38,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 228 transitions. [2024-09-12 18:25:38,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:25:38,847 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:38,847 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:38,847 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:25:38,847 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:38,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:38,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1346020998, now seen corresponding path program 1 times [2024-09-12 18:25:38,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:38,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454209841] [2024-09-12 18:25:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:38,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:25:38,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:38,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454209841] [2024-09-12 18:25:38,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454209841] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:38,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:38,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:25:38,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347813358] [2024-09-12 18:25:38,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:38,930 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:25:38,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:38,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:25:38,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:25:38,942 INFO L87 Difference]: Start difference. First operand 187 states and 228 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 18:25:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:39,051 INFO L93 Difference]: Finished difference Result 187 states and 228 transitions. [2024-09-12 18:25:39,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:25:39,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 56 [2024-09-12 18:25:39,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:39,053 INFO L225 Difference]: With dead ends: 187 [2024-09-12 18:25:39,054 INFO L226 Difference]: Without dead ends: 186 [2024-09-12 18:25:39,054 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:25:39,054 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 104 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:39,054 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 168 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:25:39,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-09-12 18:25:39,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2024-09-12 18:25:39,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 125 states have (on average 1.424) internal successors, (178), 155 states have internal predecessors, (178), 25 states have call successors, (25), 8 states have call predecessors, (25), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:25:39,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 226 transitions. [2024-09-12 18:25:39,084 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 226 transitions. Word has length 56 [2024-09-12 18:25:39,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:39,085 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 226 transitions. [2024-09-12 18:25:39,085 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 18:25:39,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 226 transitions. [2024-09-12 18:25:39,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:25:39,086 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:39,086 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:39,086 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:25:39,087 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:39,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:39,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1346022280, now seen corresponding path program 1 times [2024-09-12 18:25:39,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:39,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972306981] [2024-09-12 18:25:39,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:39,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:25:39,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:39,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972306981] [2024-09-12 18:25:39,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972306981] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:39,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:39,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:25:39,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296530920] [2024-09-12 18:25:39,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:39,171 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:25:39,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:39,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:25:39,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:25:39,172 INFO L87 Difference]: Start difference. First operand 186 states and 226 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:25:39,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:39,556 INFO L93 Difference]: Finished difference Result 239 states and 287 transitions. [2024-09-12 18:25:39,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:25:39,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 56 [2024-09-12 18:25:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:39,558 INFO L225 Difference]: With dead ends: 239 [2024-09-12 18:25:39,558 INFO L226 Difference]: Without dead ends: 238 [2024-09-12 18:25:39,559 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:25:39,559 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 268 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:39,559 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 265 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:25:39,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-09-12 18:25:39,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 215. [2024-09-12 18:25:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 149 states have (on average 1.4161073825503356) internal successors, (211), 179 states have internal predecessors, (211), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:25:39,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 269 transitions. [2024-09-12 18:25:39,609 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 269 transitions. Word has length 56 [2024-09-12 18:25:39,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:39,610 INFO L474 AbstractCegarLoop]: Abstraction has 215 states and 269 transitions. [2024-09-12 18:25:39,610 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:25:39,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:39,610 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 269 transitions. [2024-09-12 18:25:39,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:25:39,611 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:39,611 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:39,612 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:25:39,612 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:39,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:39,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1223021890, now seen corresponding path program 1 times [2024-09-12 18:25:39,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:39,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781931509] [2024-09-12 18:25:39,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:39,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:39,704 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:25:39,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:39,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781931509] [2024-09-12 18:25:39,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781931509] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:39,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:39,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:39,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75098264] [2024-09-12 18:25:39,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:39,707 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:39,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:39,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:39,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:39,708 INFO L87 Difference]: Start difference. First operand 215 states and 269 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 18:25:39,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:39,975 INFO L93 Difference]: Finished difference Result 236 states and 282 transitions. [2024-09-12 18:25:39,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:25:39,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 57 [2024-09-12 18:25:39,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:39,978 INFO L225 Difference]: With dead ends: 236 [2024-09-12 18:25:39,979 INFO L226 Difference]: Without dead ends: 234 [2024-09-12 18:25:39,980 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 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 18:25:39,981 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 41 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:39,982 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 175 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:39,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-09-12 18:25:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 219. [2024-09-12 18:25:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 153 states have (on average 1.4052287581699345) internal successors, (215), 183 states have internal predecessors, (215), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:25:40,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 273 transitions. [2024-09-12 18:25:40,033 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 273 transitions. Word has length 57 [2024-09-12 18:25:40,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:40,034 INFO L474 AbstractCegarLoop]: Abstraction has 219 states and 273 transitions. [2024-09-12 18:25:40,034 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 18:25:40,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:40,034 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 273 transitions. [2024-09-12 18:25:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:25:40,035 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:40,035 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:40,035 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:25:40,036 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:40,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:40,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1716872754, now seen corresponding path program 1 times [2024-09-12 18:25:40,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:40,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137520597] [2024-09-12 18:25:40,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:40,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:40,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:40,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:40,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:40,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:40,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:40,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:40,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:25:40,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:40,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137520597] [2024-09-12 18:25:40,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137520597] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:40,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679669134] [2024-09-12 18:25:40,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:40,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:40,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:40,177 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 18:25:40,179 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 18:25:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:40,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:25:40,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:40,341 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:25:40,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:40,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679669134] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:40,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:25:40,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-09-12 18:25:40,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513531489] [2024-09-12 18:25:40,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:40,342 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:25:40,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:40,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:25:40,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:25:40,343 INFO L87 Difference]: Start difference. First operand 219 states and 273 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:25:40,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:40,888 INFO L93 Difference]: Finished difference Result 236 states and 299 transitions. [2024-09-12 18:25:40,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:25:40,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-09-12 18:25:40,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:40,890 INFO L225 Difference]: With dead ends: 236 [2024-09-12 18:25:40,890 INFO L226 Difference]: Without dead ends: 234 [2024-09-12 18:25:40,891 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:25:40,892 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 27 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:40,892 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 229 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:25:40,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-09-12 18:25:40,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 223. [2024-09-12 18:25:40,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 156 states have (on average 1.3974358974358974) internal successors, (218), 186 states have internal predecessors, (218), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:25:40,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 276 transitions. [2024-09-12 18:25:40,943 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 276 transitions. Word has length 62 [2024-09-12 18:25:40,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:40,944 INFO L474 AbstractCegarLoop]: Abstraction has 223 states and 276 transitions. [2024-09-12 18:25:40,944 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:25:40,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:40,944 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 276 transitions. [2024-09-12 18:25:40,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 18:25:40,945 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:40,945 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:40,963 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 18:25:41,149 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:25:41,150 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:41,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:41,150 INFO L85 PathProgramCache]: Analyzing trace with hash 599269367, now seen corresponding path program 1 times [2024-09-12 18:25:41,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:41,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683066744] [2024-09-12 18:25:41,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:41,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:41,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139292359] [2024-09-12 18:25:41,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:41,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:41,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:41,165 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 18:25:41,167 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 18:25:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:41,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:25:41,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:41,479 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:25:41,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:41,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:41,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683066744] [2024-09-12 18:25:41,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:41,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139292359] [2024-09-12 18:25:41,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139292359] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:41,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:41,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:25:41,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581009611] [2024-09-12 18:25:41,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:41,481 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:25:41,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:41,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:25:41,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:25:41,481 INFO L87 Difference]: Start difference. First operand 223 states and 276 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:25:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:41,956 INFO L93 Difference]: Finished difference Result 320 states and 401 transitions. [2024-09-12 18:25:41,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:25:41,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 67 [2024-09-12 18:25:41,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:41,959 INFO L225 Difference]: With dead ends: 320 [2024-09-12 18:25:41,959 INFO L226 Difference]: Without dead ends: 311 [2024-09-12 18:25:41,960 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:25:41,960 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 211 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:41,960 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 148 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:25:41,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-09-12 18:25:42,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 290. [2024-09-12 18:25:42,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 212 states have (on average 1.3773584905660377) internal successors, (292), 243 states have internal predecessors, (292), 41 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:25:42,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 372 transitions. [2024-09-12 18:25:42,051 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 372 transitions. Word has length 67 [2024-09-12 18:25:42,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:42,051 INFO L474 AbstractCegarLoop]: Abstraction has 290 states and 372 transitions. [2024-09-12 18:25:42,051 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:25:42,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:42,052 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 372 transitions. [2024-09-12 18:25:42,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:25:42,052 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:42,052 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:42,070 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 18:25:42,253 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:42,253 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:42,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1397481256, now seen corresponding path program 1 times [2024-09-12 18:25:42,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:42,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588212775] [2024-09-12 18:25:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:42,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [407876425] [2024-09-12 18:25:42,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:42,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:42,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:42,274 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 18:25:42,275 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 18:25:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:42,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:25:42,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:42,582 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:25:42,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:43,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:43,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588212775] [2024-09-12 18:25:43,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:43,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407876425] [2024-09-12 18:25:43,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407876425] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:43,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:25:43,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:25:43,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121505656] [2024-09-12 18:25:43,258 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:43,258 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:25:43,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:43,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:25:43,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:25:43,260 INFO L87 Difference]: Start difference. First operand 290 states and 372 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:25:43,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:43,606 INFO L93 Difference]: Finished difference Result 377 states and 481 transitions. [2024-09-12 18:25:43,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:25:43,606 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 68 [2024-09-12 18:25:43,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:43,609 INFO L225 Difference]: With dead ends: 377 [2024-09-12 18:25:43,609 INFO L226 Difference]: Without dead ends: 374 [2024-09-12 18:25:43,610 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:25:43,610 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 131 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:43,610 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 177 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:43,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-09-12 18:25:43,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 346. [2024-09-12 18:25:43,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 258 states have (on average 1.372093023255814) internal successors, (354), 289 states have internal predecessors, (354), 51 states have call successors, (51), 9 states have call predecessors, (51), 8 states have return successors, (49), 47 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 18:25:43,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 454 transitions. [2024-09-12 18:25:43,688 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 454 transitions. Word has length 68 [2024-09-12 18:25:43,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:43,688 INFO L474 AbstractCegarLoop]: Abstraction has 346 states and 454 transitions. [2024-09-12 18:25:43,689 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:25:43,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:43,689 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 454 transitions. [2024-09-12 18:25:43,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 18:25:43,690 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:43,690 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:43,706 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 18:25:43,893 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-09-12 18:25:43,894 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:43,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:43,894 INFO L85 PathProgramCache]: Analyzing trace with hash 372246041, now seen corresponding path program 1 times [2024-09-12 18:25:43,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:43,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934622048] [2024-09-12 18:25:43,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:43,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:43,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:44,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:44,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:44,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:44,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:44,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:44,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:44,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:25:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:44,018 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:25:44,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:44,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934622048] [2024-09-12 18:25:44,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934622048] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:44,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:44,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:25:44,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341005223] [2024-09-12 18:25:44,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:44,020 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:25:44,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:44,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:25:44,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:25:44,021 INFO L87 Difference]: Start difference. First operand 346 states and 454 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 18:25:44,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:44,953 INFO L93 Difference]: Finished difference Result 476 states and 631 transitions. [2024-09-12 18:25:44,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:25:44,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 69 [2024-09-12 18:25:44,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:44,956 INFO L225 Difference]: With dead ends: 476 [2024-09-12 18:25:44,956 INFO L226 Difference]: Without dead ends: 473 [2024-09-12 18:25:44,957 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:25:44,957 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 132 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:44,957 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 209 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:25:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-09-12 18:25:45,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 350. [2024-09-12 18:25:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 264 states have (on average 1.3484848484848484) internal successors, (356), 291 states have internal predecessors, (356), 51 states have call successors, (51), 9 states have call predecessors, (51), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 18:25:45,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 456 transitions. [2024-09-12 18:25:45,045 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 456 transitions. Word has length 69 [2024-09-12 18:25:45,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:45,046 INFO L474 AbstractCegarLoop]: Abstraction has 350 states and 456 transitions. [2024-09-12 18:25:45,046 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 18:25:45,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:45,046 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 456 transitions. [2024-09-12 18:25:45,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 18:25:45,051 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:45,051 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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:45,051 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 18:25:45,051 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:45,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:45,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1470285178, now seen corresponding path program 1 times [2024-09-12 18:25:45,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:45,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079278771] [2024-09-12 18:25:45,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:45,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:45,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771509077] [2024-09-12 18:25:45,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:45,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:45,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:45,065 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 18:25:45,066 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 18:25:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:45,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:25:45,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:45,278 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 18:25:45,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:25:45,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:45,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079278771] [2024-09-12 18:25:45,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:45,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771509077] [2024-09-12 18:25:45,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771509077] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:45,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:45,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:25:45,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328585447] [2024-09-12 18:25:45,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:45,280 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:25:45,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:45,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:25:45,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:25:45,281 INFO L87 Difference]: Start difference. First operand 350 states and 456 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:25:45,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:45,645 INFO L93 Difference]: Finished difference Result 367 states and 484 transitions. [2024-09-12 18:25:45,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:25:45,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 69 [2024-09-12 18:25:45,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:45,647 INFO L225 Difference]: With dead ends: 367 [2024-09-12 18:25:45,647 INFO L226 Difference]: Without dead ends: 363 [2024-09-12 18:25:45,648 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:25:45,648 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 101 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:45,648 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 250 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:25:45,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-09-12 18:25:45,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 346. [2024-09-12 18:25:45,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 264 states have (on average 1.321969696969697) internal successors, (349), 287 states have internal predecessors, (349), 51 states have call successors, (51), 9 states have call predecessors, (51), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 18:25:45,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 449 transitions. [2024-09-12 18:25:45,737 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 449 transitions. Word has length 69 [2024-09-12 18:25:45,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:45,737 INFO L474 AbstractCegarLoop]: Abstraction has 346 states and 449 transitions. [2024-09-12 18:25:45,737 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:25:45,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 449 transitions. [2024-09-12 18:25:45,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 18:25:45,738 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:45,738 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:45,755 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:45,942 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:45,943 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:45,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:45,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1345274550, now seen corresponding path program 1 times [2024-09-12 18:25:45,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:45,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114641389] [2024-09-12 18:25:45,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:45,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:45,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027784576] [2024-09-12 18:25:45,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:45,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:45,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:45,959 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:45,961 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 18:25:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:46,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:25:46,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:25:46,241 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:50,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:50,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114641389] [2024-09-12 18:25:50,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:50,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027784576] [2024-09-12 18:25:50,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027784576] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:50,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:25:50,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:25:50,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748323212] [2024-09-12 18:25:50,507 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:50,508 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:25:50,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:50,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:25:50,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=82, Unknown=1, NotChecked=0, Total=110 [2024-09-12 18:25:50,509 INFO L87 Difference]: Start difference. First operand 346 states and 449 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:25:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:51,200 INFO L93 Difference]: Finished difference Result 370 states and 461 transitions. [2024-09-12 18:25:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:25:51,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 70 [2024-09-12 18:25:51,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:51,203 INFO L225 Difference]: With dead ends: 370 [2024-09-12 18:25:51,203 INFO L226 Difference]: Without dead ends: 367 [2024-09-12 18:25:51,203 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=52, Invalid=157, Unknown=1, NotChecked=0, Total=210 [2024-09-12 18:25:51,204 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 226 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:51,204 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 252 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:25:51,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-09-12 18:25:51,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 348. [2024-09-12 18:25:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 266 states have (on average 1.3082706766917294) internal successors, (348), 289 states have internal predecessors, (348), 51 states have call successors, (51), 9 states have call predecessors, (51), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 18:25:51,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 448 transitions. [2024-09-12 18:25:51,296 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 448 transitions. Word has length 70 [2024-09-12 18:25:51,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:51,296 INFO L474 AbstractCegarLoop]: Abstraction has 348 states and 448 transitions. [2024-09-12 18:25:51,297 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:25:51,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 448 transitions. [2024-09-12 18:25:51,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 18:25:51,298 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:51,298 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:51,314 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:51,498 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:25:51,499 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:51,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:51,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1665799824, now seen corresponding path program 1 times [2024-09-12 18:25:51,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:51,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709566393] [2024-09-12 18:25:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:51,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:51,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57176758] [2024-09-12 18:25:51,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:51,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:51,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:51,523 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:51,525 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 18:25:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:51,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:25:51,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:25:51,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:52,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:52,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709566393] [2024-09-12 18:25:52,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:52,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57176758] [2024-09-12 18:25:52,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57176758] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:52,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:25:52,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:25:52,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826849472] [2024-09-12 18:25:52,056 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:52,057 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:25:52,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:25:52,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:25:52,057 INFO L87 Difference]: Start difference. First operand 348 states and 448 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:25:52,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:52,539 INFO L93 Difference]: Finished difference Result 545 states and 745 transitions. [2024-09-12 18:25:52,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:25:52,539 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 70 [2024-09-12 18:25:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:52,543 INFO L225 Difference]: With dead ends: 545 [2024-09-12 18:25:52,543 INFO L226 Difference]: Without dead ends: 541 [2024-09-12 18:25:52,544 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:25:52,544 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 118 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:52,545 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 408 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:25:52,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-09-12 18:25:52,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 442. [2024-09-12 18:25:52,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 344 states have (on average 1.302325581395349) internal successors, (448), 367 states have internal predecessors, (448), 67 states have call successors, (67), 9 states have call predecessors, (67), 8 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 18:25:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 580 transitions. [2024-09-12 18:25:52,657 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 580 transitions. Word has length 70 [2024-09-12 18:25:52,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:52,658 INFO L474 AbstractCegarLoop]: Abstraction has 442 states and 580 transitions. [2024-09-12 18:25:52,659 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:25:52,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:52,659 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 580 transitions. [2024-09-12 18:25:52,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 18:25:52,660 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:52,660 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:25:52,677 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 18:25:52,864 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 18:25:52,865 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:52,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:52,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1282692870, now seen corresponding path program 1 times [2024-09-12 18:25:52,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:52,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062972735] [2024-09-12 18:25:52,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:52,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:52,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387155458] [2024-09-12 18:25:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:52,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:52,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:52,888 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:52,890 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 18:25:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:52,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:25:52,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:53,312 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:25:53,312 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:53,598 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:25:53,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:53,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062972735] [2024-09-12 18:25:53,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:53,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387155458] [2024-09-12 18:25:53,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387155458] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:53,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:25:53,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2024-09-12 18:25:53,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424694096] [2024-09-12 18:25:53,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:53,600 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:25:53,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:53,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:25:53,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:25:53,601 INFO L87 Difference]: Start difference. First operand 442 states and 580 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:25:54,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:54,355 INFO L93 Difference]: Finished difference Result 519 states and 680 transitions. [2024-09-12 18:25:54,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:25:54,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 74 [2024-09-12 18:25:54,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:54,360 INFO L225 Difference]: With dead ends: 519 [2024-09-12 18:25:54,360 INFO L226 Difference]: Without dead ends: 512 [2024-09-12 18:25:54,361 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:25:54,361 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 159 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:54,362 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 192 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:25:54,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-09-12 18:25:54,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 499. [2024-09-12 18:25:54,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 390 states have (on average 1.3051282051282052) internal successors, (509), 413 states have internal predecessors, (509), 76 states have call successors, (76), 11 states have call predecessors, (76), 10 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-09-12 18:25:54,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 659 transitions. [2024-09-12 18:25:54,502 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 659 transitions. Word has length 74 [2024-09-12 18:25:54,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:54,502 INFO L474 AbstractCegarLoop]: Abstraction has 499 states and 659 transitions. [2024-09-12 18:25:54,503 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:25:54,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:54,503 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 659 transitions. [2024-09-12 18:25:54,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 18:25:54,508 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:54,508 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 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] [2024-09-12 18:25:54,524 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 18:25:54,708 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:54,709 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:54,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:54,709 INFO L85 PathProgramCache]: Analyzing trace with hash -326379522, now seen corresponding path program 1 times [2024-09-12 18:25:54,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:54,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135298011] [2024-09-12 18:25:54,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:54,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:25:54,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511986744] [2024-09-12 18:25:54,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:54,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:54,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:54,724 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:54,726 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 18:25:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:54,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:25:54,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:25:54,881 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-09-12 18:25:54,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:54,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135298011] [2024-09-12 18:25:54,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:25:54,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511986744] [2024-09-12 18:25:54,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511986744] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:54,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:25:54,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 18:25:54,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761279033] [2024-09-12 18:25:54,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:54,966 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:25:54,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:54,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:25:54,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:25:54,968 INFO L87 Difference]: Start difference. First operand 499 states and 659 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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 18:25:55,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:55,753 INFO L93 Difference]: Finished difference Result 505 states and 664 transitions. [2024-09-12 18:25:55,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:25:55,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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 74 [2024-09-12 18:25:55,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:55,757 INFO L225 Difference]: With dead ends: 505 [2024-09-12 18:25:55,757 INFO L226 Difference]: Without dead ends: 503 [2024-09-12 18:25:55,758 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 138 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:25:55,758 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 34 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:55,758 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 109 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:25:55,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-09-12 18:25:55,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2024-09-12 18:25:55,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 393 states have (on average 1.3027989821882953) internal successors, (512), 416 states have internal predecessors, (512), 76 states have call successors, (76), 12 states have call predecessors, (76), 11 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-09-12 18:25:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 662 transitions. [2024-09-12 18:25:55,914 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 662 transitions. Word has length 74 [2024-09-12 18:25:55,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:55,914 INFO L474 AbstractCegarLoop]: Abstraction has 503 states and 662 transitions. [2024-09-12 18:25:55,914 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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 18:25:55,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:55,915 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 662 transitions. [2024-09-12 18:25:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-09-12 18:25:55,916 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:55,916 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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 18:25:55,934 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 18:25:56,116 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:56,116 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:56,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1839912339, now seen corresponding path program 1 times [2024-09-12 18:25:56,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:56,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613525827] [2024-09-12 18:25:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:56,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:25:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:25:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:25:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:25:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:25:56,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:56,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613525827] [2024-09-12 18:25:56,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613525827] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:56,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106579872] [2024-09-12 18:25:56,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:56,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:56,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:56,239 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:56,243 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 18:25:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:56,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:25:56,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:25:56,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:25:56,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106579872] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:56,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:25:56,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-09-12 18:25:56,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031363964] [2024-09-12 18:25:56,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:56,460 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:25:56,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:56,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:25:56,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:25:56,461 INFO L87 Difference]: Start difference. First operand 503 states and 662 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 18:25:57,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:57,392 INFO L93 Difference]: Finished difference Result 779 states and 1060 transitions. [2024-09-12 18:25:57,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:25:57,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 90 [2024-09-12 18:25:57,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:57,396 INFO L225 Difference]: With dead ends: 779 [2024-09-12 18:25:57,396 INFO L226 Difference]: Without dead ends: 777 [2024-09-12 18:25:57,397 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:25:57,397 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 274 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:57,397 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 263 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:25:57,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-09-12 18:25:57,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 677. [2024-09-12 18:25:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 533 states have (on average 1.3058161350844277) internal successors, (696), 555 states have internal predecessors, (696), 111 states have call successors, (111), 12 states have call predecessors, (111), 11 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-09-12 18:25:57,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 916 transitions. [2024-09-12 18:25:57,608 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 916 transitions. Word has length 90 [2024-09-12 18:25:57,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:57,609 INFO L474 AbstractCegarLoop]: Abstraction has 677 states and 916 transitions. [2024-09-12 18:25:57,609 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 18:25:57,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:57,609 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 916 transitions. [2024-09-12 18:25:57,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 18:25:57,611 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:57,611 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-09-12 18:25:57,625 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 18:25:57,811 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:25:57,812 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:57,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:57,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1202707560, now seen corresponding path program 1 times [2024-09-12 18:25:57,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:57,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457123284] [2024-09-12 18:25:57,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:57,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:25:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:25:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:25:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:25:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:25:57,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:57,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457123284] [2024-09-12 18:25:57,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457123284] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:25:57,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896678048] [2024-09-12 18:25:57,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:57,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:25:57,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:25:57,913 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:25:57,914 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 18:25:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:57,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:25:57,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:25:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:25:58,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:25:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:25:58,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896678048] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:25:58,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:25:58,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-09-12 18:25:58,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401082122] [2024-09-12 18:25:58,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:25:58,143 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:25:58,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:58,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:25:58,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:25:58,144 INFO L87 Difference]: Start difference. First operand 677 states and 916 transitions. Second operand has 11 states, 10 states have (on average 10.4) internal successors, (104), 11 states have internal predecessors, (104), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) [2024-09-12 18:25:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:25:59,218 INFO L93 Difference]: Finished difference Result 796 states and 1052 transitions. [2024-09-12 18:25:59,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:25:59,218 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.4) internal successors, (104), 11 states have internal predecessors, (104), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) Word has length 91 [2024-09-12 18:25:59,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:25:59,223 INFO L225 Difference]: With dead ends: 796 [2024-09-12 18:25:59,223 INFO L226 Difference]: Without dead ends: 794 [2024-09-12 18:25:59,223 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:25:59,224 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 543 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:25:59,224 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 503 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:25:59,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-09-12 18:25:59,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 680. [2024-09-12 18:25:59,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 537 states have (on average 1.25512104283054) internal successors, (674), 558 states have internal predecessors, (674), 111 states have call successors, (111), 12 states have call predecessors, (111), 11 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-09-12 18:25:59,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 894 transitions. [2024-09-12 18:25:59,466 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 894 transitions. Word has length 91 [2024-09-12 18:25:59,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:25:59,467 INFO L474 AbstractCegarLoop]: Abstraction has 680 states and 894 transitions. [2024-09-12 18:25:59,467 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.4) internal successors, (104), 11 states have internal predecessors, (104), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) [2024-09-12 18:25:59,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:59,468 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 894 transitions. [2024-09-12 18:25:59,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 18:25:59,469 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:25:59,469 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-09-12 18:25:59,487 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 18:25:59,669 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:25:59,670 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:25:59,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:25:59,670 INFO L85 PathProgramCache]: Analyzing trace with hash -455759184, now seen corresponding path program 1 times [2024-09-12 18:25:59,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:25:59,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343228300] [2024-09-12 18:25:59,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:25:59,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:25:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:25:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:25:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:25:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:25:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:25:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:25:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:25:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:25:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:25:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:25:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:25:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:25:59,746 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:25:59,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:25:59,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343228300] [2024-09-12 18:25:59,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343228300] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:25:59,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:25:59,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:25:59,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433141276] [2024-09-12 18:25:59,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:25:59,748 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:25:59,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:25:59,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:25:59,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:25:59,750 INFO L87 Difference]: Start difference. First operand 680 states and 894 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 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 18:26:00,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:00,038 INFO L93 Difference]: Finished difference Result 680 states and 894 transitions. [2024-09-12 18:26:00,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:26:00,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 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 93 [2024-09-12 18:26:00,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:00,042 INFO L225 Difference]: With dead ends: 680 [2024-09-12 18:26:00,043 INFO L226 Difference]: Without dead ends: 679 [2024-09-12 18:26:00,044 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:26:00,044 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 18 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:00,044 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 154 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:26:00,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-09-12 18:26:00,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2024-09-12 18:26:00,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 537 states have (on average 1.2476722532588453) internal successors, (670), 557 states have internal predecessors, (670), 111 states have call successors, (111), 12 states have call predecessors, (111), 11 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-09-12 18:26:00,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 890 transitions. [2024-09-12 18:26:00,272 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 890 transitions. Word has length 93 [2024-09-12 18:26:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:00,272 INFO L474 AbstractCegarLoop]: Abstraction has 679 states and 890 transitions. [2024-09-12 18:26:00,272 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 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 18:26:00,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:00,272 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 890 transitions. [2024-09-12 18:26:00,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:26:00,275 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:00,275 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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 18:26:00,276 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-09-12 18:26:00,276 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:00,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:00,276 INFO L85 PathProgramCache]: Analyzing trace with hash 102092530, now seen corresponding path program 1 times [2024-09-12 18:26:00,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:00,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872291028] [2024-09-12 18:26:00,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:00,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:26:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:26:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:26:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:26:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:26:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:26:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:26:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:26:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:26:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:26:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,381 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:26:00,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:00,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872291028] [2024-09-12 18:26:00,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872291028] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:00,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808484740] [2024-09-12 18:26:00,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:00,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:00,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:00,384 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 18:26:00,386 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 18:26:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:00,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:26:00,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:00,563 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:26:00,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:26:00,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808484740] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:26:00,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:00,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-09-12 18:26:00,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339927673] [2024-09-12 18:26:00,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:26:00,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:26:00,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:00,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:26:00,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:26:00,565 INFO L87 Difference]: Start difference. First operand 679 states and 890 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 18:26:01,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:01,003 INFO L93 Difference]: Finished difference Result 691 states and 911 transitions. [2024-09-12 18:26:01,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:26:01,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 95 [2024-09-12 18:26:01,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:01,008 INFO L225 Difference]: With dead ends: 691 [2024-09-12 18:26:01,008 INFO L226 Difference]: Without dead ends: 690 [2024-09-12 18:26:01,008 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:26:01,009 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 66 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:01,010 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 117 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:26:01,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-09-12 18:26:01,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 678. [2024-09-12 18:26:01,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 537 states have (on average 1.2420856610800746) internal successors, (667), 556 states have internal predecessors, (667), 111 states have call successors, (111), 12 states have call predecessors, (111), 11 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-09-12 18:26:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 887 transitions. [2024-09-12 18:26:01,200 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 887 transitions. Word has length 95 [2024-09-12 18:26:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:01,200 INFO L474 AbstractCegarLoop]: Abstraction has 678 states and 887 transitions. [2024-09-12 18:26:01,200 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 18:26:01,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 887 transitions. [2024-09-12 18:26:01,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 18:26:01,202 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:01,202 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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 18:26:01,218 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 18:26:01,406 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:01,407 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:01,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:01,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1130098732, now seen corresponding path program 1 times [2024-09-12 18:26:01,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:01,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468184606] [2024-09-12 18:26:01,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:01,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:26:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:26:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:26:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:26:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:26:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:26:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:26:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:26:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:26:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:26:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:26:01,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:01,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468184606] [2024-09-12 18:26:01,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468184606] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:01,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044558100] [2024-09-12 18:26:01,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:01,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:01,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:01,516 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 18:26:01,517 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 18:26:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:01,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:26:01,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:26:01,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:01,806 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:26:01,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044558100] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:01,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:26:01,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-12 18:26:01,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499543312] [2024-09-12 18:26:01,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:01,807 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:26:01,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:01,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:26:01,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:26:01,809 INFO L87 Difference]: Start difference. First operand 678 states and 887 transitions. Second operand has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 18:26:02,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:02,495 INFO L93 Difference]: Finished difference Result 886 states and 1174 transitions. [2024-09-12 18:26:02,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:26:02,496 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 96 [2024-09-12 18:26:02,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:02,500 INFO L225 Difference]: With dead ends: 886 [2024-09-12 18:26:02,500 INFO L226 Difference]: Without dead ends: 884 [2024-09-12 18:26:02,501 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:26:02,501 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 267 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:02,501 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 316 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:26:02,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-09-12 18:26:02,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 754. [2024-09-12 18:26:02,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 604 states have (on average 1.2367549668874172) internal successors, (747), 623 states have internal predecessors, (747), 120 states have call successors, (120), 12 states have call predecessors, (120), 11 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-09-12 18:26:02,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 985 transitions. [2024-09-12 18:26:02,744 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 985 transitions. Word has length 96 [2024-09-12 18:26:02,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:02,744 INFO L474 AbstractCegarLoop]: Abstraction has 754 states and 985 transitions. [2024-09-12 18:26:02,745 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 18:26:02,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:02,745 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 985 transitions. [2024-09-12 18:26:02,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 18:26:02,746 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:02,746 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 9, 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] [2024-09-12 18:26:02,759 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 18:26:02,946 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:02,947 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:02,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:02,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1874608766, now seen corresponding path program 2 times [2024-09-12 18:26:02,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:02,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891121634] [2024-09-12 18:26:02,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:02,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:26:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:26:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:26:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:26:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:26:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:26:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:26:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:26:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:26:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:26:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 18:26:03,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:03,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891121634] [2024-09-12 18:26:03,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891121634] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:03,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273874299] [2024-09-12 18:26:03,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:26:03,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:03,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:03,102 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 18:26:03,105 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 18:26:03,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:26:03,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:26:03,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:26:03,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:03,350 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 57 proven. 17 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-09-12 18:26:03,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 66 proven. 8 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-09-12 18:26:03,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273874299] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:03,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:26:03,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 8] total 15 [2024-09-12 18:26:03,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337572365] [2024-09-12 18:26:03,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:03,556 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:26:03,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:03,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:26:03,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:26:03,557 INFO L87 Difference]: Start difference. First operand 754 states and 985 transitions. Second operand has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 8 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-09-12 18:26:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:04,521 INFO L93 Difference]: Finished difference Result 768 states and 993 transitions. [2024-09-12 18:26:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:26:04,521 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 8 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 100 [2024-09-12 18:26:04,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:04,524 INFO L225 Difference]: With dead ends: 768 [2024-09-12 18:26:04,524 INFO L226 Difference]: Without dead ends: 766 [2024-09-12 18:26:04,525 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 215 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:26:04,525 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 115 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:04,526 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 140 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:26:04,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-09-12 18:26:04,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 762. [2024-09-12 18:26:04,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 610 states have (on average 1.2344262295081967) internal successors, (753), 629 states have internal predecessors, (753), 120 states have call successors, (120), 14 states have call predecessors, (120), 13 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-09-12 18:26:04,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 991 transitions. [2024-09-12 18:26:04,724 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 991 transitions. Word has length 100 [2024-09-12 18:26:04,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:04,724 INFO L474 AbstractCegarLoop]: Abstraction has 762 states and 991 transitions. [2024-09-12 18:26:04,724 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 8 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-09-12 18:26:04,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:04,725 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 991 transitions. [2024-09-12 18:26:04,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:26:04,727 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:04,727 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:04,742 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 18:26:04,927 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:26:04,928 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:04,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:04,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1602664225, now seen corresponding path program 1 times [2024-09-12 18:26:04,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:04,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984396397] [2024-09-12 18:26:04,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:04,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:26:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:26:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:26:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:26:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:26:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:26:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:26:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:26:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:26:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:26:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:26:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,048 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:26:05,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:05,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984396397] [2024-09-12 18:26:05,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984396397] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:05,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119592012] [2024-09-12 18:26:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:05,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:05,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:05,051 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 18:26:05,053 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 18:26:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:05,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:26:05,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:26:05,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:05,379 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:26:05,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119592012] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:05,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:26:05,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-09-12 18:26:05,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157001655] [2024-09-12 18:26:05,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:05,381 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:26:05,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:05,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:26:05,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:26:05,381 INFO L87 Difference]: Start difference. First operand 762 states and 991 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2024-09-12 18:26:06,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:06,001 INFO L93 Difference]: Finished difference Result 766 states and 991 transitions. [2024-09-12 18:26:06,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:26:06,001 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) Word has length 103 [2024-09-12 18:26:06,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:06,004 INFO L225 Difference]: With dead ends: 766 [2024-09-12 18:26:06,004 INFO L226 Difference]: Without dead ends: 765 [2024-09-12 18:26:06,005 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 225 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:26:06,005 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 277 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:06,006 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 284 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:26:06,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-09-12 18:26:06,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 761. [2024-09-12 18:26:06,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 610 states have (on average 1.2311475409836066) internal successors, (751), 628 states have internal predecessors, (751), 120 states have call successors, (120), 14 states have call predecessors, (120), 13 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-09-12 18:26:06,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 989 transitions. [2024-09-12 18:26:06,209 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 989 transitions. Word has length 103 [2024-09-12 18:26:06,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:06,210 INFO L474 AbstractCegarLoop]: Abstraction has 761 states and 989 transitions. [2024-09-12 18:26:06,210 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2024-09-12 18:26:06,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:06,210 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 989 transitions. [2024-09-12 18:26:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-09-12 18:26:06,211 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:06,211 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-09-12 18:26:06,224 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-12 18:26:06,412 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 18:26:06,412 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:06,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:06,413 INFO L85 PathProgramCache]: Analyzing trace with hash -169143509, now seen corresponding path program 1 times [2024-09-12 18:26:06,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:06,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357123351] [2024-09-12 18:26:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:06,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:06,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370643625] [2024-09-12 18:26:06,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:06,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:06,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:06,439 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 18:26:06,441 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 18:26:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:06,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:26:06,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:06,906 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:26:06,906 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:07,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:07,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357123351] [2024-09-12 18:26:07,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:07,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370643625] [2024-09-12 18:26:07,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370643625] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:07,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:07,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:26:07,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908128264] [2024-09-12 18:26:07,034 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:07,034 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:26:07,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:07,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:26:07,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:26:07,036 INFO L87 Difference]: Start difference. First operand 761 states and 989 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:26:08,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:08,170 INFO L93 Difference]: Finished difference Result 1113 states and 1480 transitions. [2024-09-12 18:26:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:26:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 105 [2024-09-12 18:26:08,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:08,175 INFO L225 Difference]: With dead ends: 1113 [2024-09-12 18:26:08,175 INFO L226 Difference]: Without dead ends: 1110 [2024-09-12 18:26:08,176 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:26:08,176 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 194 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:08,176 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 350 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:26:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2024-09-12 18:26:08,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 807. [2024-09-12 18:26:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 647 states have (on average 1.23338485316847) internal successors, (798), 665 states have internal predecessors, (798), 129 states have call successors, (129), 14 states have call predecessors, (129), 13 states have return successors, (127), 127 states have call predecessors, (127), 127 states have call successors, (127) [2024-09-12 18:26:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1054 transitions. [2024-09-12 18:26:08,414 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1054 transitions. Word has length 105 [2024-09-12 18:26:08,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:08,414 INFO L474 AbstractCegarLoop]: Abstraction has 807 states and 1054 transitions. [2024-09-12 18:26:08,414 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:26:08,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:08,415 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1054 transitions. [2024-09-12 18:26:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-12 18:26:08,416 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:08,416 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-09-12 18:26:08,433 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:08,616 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 18:26:08,617 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:08,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash -948481420, now seen corresponding path program 1 times [2024-09-12 18:26:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:08,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199146448] [2024-09-12 18:26:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:08,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:08,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106359930] [2024-09-12 18:26:08,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:08,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:08,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:08,646 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 18:26:08,649 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 18:26:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:08,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:26:08,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:26:09,084 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:09,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:09,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199146448] [2024-09-12 18:26:09,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:09,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106359930] [2024-09-12 18:26:09,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106359930] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:09,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:09,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:26:09,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163708675] [2024-09-12 18:26:09,802 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:09,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:26:09,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:09,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:26:09,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:26:09,803 INFO L87 Difference]: Start difference. First operand 807 states and 1054 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:26:10,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:10,580 INFO L93 Difference]: Finished difference Result 895 states and 1164 transitions. [2024-09-12 18:26:10,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:26:10,581 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 106 [2024-09-12 18:26:10,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:10,584 INFO L225 Difference]: With dead ends: 895 [2024-09-12 18:26:10,584 INFO L226 Difference]: Without dead ends: 892 [2024-09-12 18:26:10,585 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:26:10,585 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 73 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:10,585 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 310 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:26:10,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2024-09-12 18:26:10,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 874. [2024-09-12 18:26:10,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 702 states have (on average 1.2307692307692308) internal successors, (864), 720 states have internal predecessors, (864), 141 states have call successors, (141), 14 states have call predecessors, (141), 13 states have return successors, (139), 139 states have call predecessors, (139), 139 states have call successors, (139) [2024-09-12 18:26:10,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1144 transitions. [2024-09-12 18:26:10,878 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1144 transitions. Word has length 106 [2024-09-12 18:26:10,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:10,878 INFO L474 AbstractCegarLoop]: Abstraction has 874 states and 1144 transitions. [2024-09-12 18:26:10,878 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:26:10,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:10,879 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1144 transitions. [2024-09-12 18:26:10,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 18:26:10,880 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:10,880 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-09-12 18:26:10,897 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:11,080 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:26:11,080 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:11,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:11,081 INFO L85 PathProgramCache]: Analyzing trace with hash 661847117, now seen corresponding path program 1 times [2024-09-12 18:26:11,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:11,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829294537] [2024-09-12 18:26:11,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:11,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:26:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:26:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:26:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:26:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:26:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:26:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:26:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:26:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:26:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:26:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 18:26:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:11,167 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:26:11,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:11,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829294537] [2024-09-12 18:26:11,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829294537] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:26:11,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:26:11,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:26:11,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528879662] [2024-09-12 18:26:11,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:26:11,168 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:26:11,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:11,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:26:11,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:26:11,169 INFO L87 Difference]: Start difference. First operand 874 states and 1144 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:26:12,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:12,175 INFO L93 Difference]: Finished difference Result 878 states and 1144 transitions. [2024-09-12 18:26:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:26:12,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 107 [2024-09-12 18:26:12,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:12,179 INFO L225 Difference]: With dead ends: 878 [2024-09-12 18:26:12,179 INFO L226 Difference]: Without dead ends: 877 [2024-09-12 18:26:12,179 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:26:12,180 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 87 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:12,180 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 212 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:26:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-09-12 18:26:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 867. [2024-09-12 18:26:12,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 696 states have (on average 1.2227011494252873) internal successors, (851), 715 states have internal predecessors, (851), 141 states have call successors, (141), 14 states have call predecessors, (141), 13 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2024-09-12 18:26:12,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1131 transitions. [2024-09-12 18:26:12,512 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1131 transitions. Word has length 107 [2024-09-12 18:26:12,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:12,512 INFO L474 AbstractCegarLoop]: Abstraction has 867 states and 1131 transitions. [2024-09-12 18:26:12,512 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:26:12,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:12,513 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1131 transitions. [2024-09-12 18:26:12,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 18:26:12,513 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:12,514 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:12,514 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-09-12 18:26:12,514 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:12,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:12,514 INFO L85 PathProgramCache]: Analyzing trace with hash -957575786, now seen corresponding path program 1 times [2024-09-12 18:26:12,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:12,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720721883] [2024-09-12 18:26:12,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:12,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:12,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [389275548] [2024-09-12 18:26:12,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:12,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:12,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:12,538 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 18:26:12,541 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 18:26:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:12,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:26:12,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:26:12,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:13,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:13,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720721883] [2024-09-12 18:26:13,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:13,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389275548] [2024-09-12 18:26:13,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389275548] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:13,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:13,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:26:13,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399938546] [2024-09-12 18:26:13,269 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:13,269 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:26:13,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:13,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:26:13,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:26:13,270 INFO L87 Difference]: Start difference. First operand 867 states and 1131 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:26:14,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:14,049 INFO L93 Difference]: Finished difference Result 884 states and 1139 transitions. [2024-09-12 18:26:14,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:26:14,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 108 [2024-09-12 18:26:14,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:14,054 INFO L225 Difference]: With dead ends: 884 [2024-09-12 18:26:14,054 INFO L226 Difference]: Without dead ends: 881 [2024-09-12 18:26:14,054 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:26:14,055 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 181 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:14,055 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 329 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:26:14,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-09-12 18:26:14,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 869. [2024-09-12 18:26:14,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 698 states have (on average 1.2134670487106016) internal successors, (847), 717 states have internal predecessors, (847), 141 states have call successors, (141), 14 states have call predecessors, (141), 13 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2024-09-12 18:26:14,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1127 transitions. [2024-09-12 18:26:14,326 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1127 transitions. Word has length 108 [2024-09-12 18:26:14,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:14,327 INFO L474 AbstractCegarLoop]: Abstraction has 869 states and 1127 transitions. [2024-09-12 18:26:14,327 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:26:14,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:14,327 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1127 transitions. [2024-09-12 18:26:14,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 18:26:14,328 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:14,328 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:14,345 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:14,529 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:14,529 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:14,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash 2053498588, now seen corresponding path program 2 times [2024-09-12 18:26:14,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:14,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731269336] [2024-09-12 18:26:14,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:14,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:14,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630892775] [2024-09-12 18:26:14,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:26:14,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:14,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:14,543 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 18:26:14,544 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 18:26:14,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:26:14,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:26:14,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:26:14,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:14,824 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 18:26:14,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:15,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:15,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731269336] [2024-09-12 18:26:15,148 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:15,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630892775] [2024-09-12 18:26:15,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630892775] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:15,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:15,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:26:15,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276709240] [2024-09-12 18:26:15,148 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:15,148 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:26:15,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:15,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:26:15,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:26:15,149 INFO L87 Difference]: Start difference. First operand 869 states and 1127 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:26:16,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:16,014 INFO L93 Difference]: Finished difference Result 1009 states and 1336 transitions. [2024-09-12 18:26:16,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:26:16,015 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 108 [2024-09-12 18:26:16,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:16,018 INFO L225 Difference]: With dead ends: 1009 [2024-09-12 18:26:16,018 INFO L226 Difference]: Without dead ends: 1005 [2024-09-12 18:26:16,019 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:26:16,019 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 164 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:16,019 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 345 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:26:16,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-09-12 18:26:16,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 869. [2024-09-12 18:26:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 698 states have (on average 1.1876790830945558) internal successors, (829), 717 states have internal predecessors, (829), 141 states have call successors, (141), 14 states have call predecessors, (141), 13 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2024-09-12 18:26:16,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1109 transitions. [2024-09-12 18:26:16,379 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1109 transitions. Word has length 108 [2024-09-12 18:26:16,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:16,380 INFO L474 AbstractCegarLoop]: Abstraction has 869 states and 1109 transitions. [2024-09-12 18:26:16,380 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:26:16,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:16,380 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1109 transitions. [2024-09-12 18:26:16,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-09-12 18:26:16,381 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:16,381 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:16,398 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 18:26:16,582 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:26:16,582 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:16,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:16,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1013871430, now seen corresponding path program 1 times [2024-09-12 18:26:16,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:16,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263931773] [2024-09-12 18:26:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:16,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:16,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138074141] [2024-09-12 18:26:16,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:16,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:16,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:16,609 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:16,613 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 18:26:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:16,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:26:16,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:17,190 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 31 proven. 38 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 18:26:17,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:17,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:17,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263931773] [2024-09-12 18:26:17,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:17,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138074141] [2024-09-12 18:26:17,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138074141] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:17,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:17,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:26:17,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950974403] [2024-09-12 18:26:17,783 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:17,783 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:26:17,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:17,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:26:17,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:26:17,784 INFO L87 Difference]: Start difference. First operand 869 states and 1109 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:26:18,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:18,768 INFO L93 Difference]: Finished difference Result 905 states and 1133 transitions. [2024-09-12 18:26:18,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:26:18,769 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) Word has length 112 [2024-09-12 18:26:18,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:18,772 INFO L225 Difference]: With dead ends: 905 [2024-09-12 18:26:18,772 INFO L226 Difference]: Without dead ends: 898 [2024-09-12 18:26:18,773 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:26:18,773 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 72 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:18,773 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 467 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:26:18,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-09-12 18:26:19,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 885. [2024-09-12 18:26:19,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 709 states have (on average 1.1833568406205923) internal successors, (839), 728 states have internal predecessors, (839), 141 states have call successors, (141), 19 states have call predecessors, (141), 18 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2024-09-12 18:26:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1119 transitions. [2024-09-12 18:26:19,134 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1119 transitions. Word has length 112 [2024-09-12 18:26:19,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:19,135 INFO L474 AbstractCegarLoop]: Abstraction has 885 states and 1119 transitions. [2024-09-12 18:26:19,135 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 14 states have internal predecessors, (62), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:26:19,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:19,135 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1119 transitions. [2024-09-12 18:26:19,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-09-12 18:26:19,136 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:19,136 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:19,148 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-09-12 18:26:19,336 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 18:26:19,336 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:19,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:19,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1609682433, now seen corresponding path program 2 times [2024-09-12 18:26:19,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:19,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459440952] [2024-09-12 18:26:19,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:19,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:26:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:26:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:26:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:26:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:26:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:26:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:26:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:26:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:26:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:26:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:26:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 18:26:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:26:19,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:19,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459440952] [2024-09-12 18:26:19,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459440952] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:26:19,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:26:19,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:26:19,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008860346] [2024-09-12 18:26:19,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:26:19,418 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:26:19,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:19,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:26:19,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:26:19,419 INFO L87 Difference]: Start difference. First operand 885 states and 1119 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:26:20,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:20,118 INFO L93 Difference]: Finished difference Result 1222 states and 1550 transitions. [2024-09-12 18:26:20,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:26:20,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 115 [2024-09-12 18:26:20,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:20,122 INFO L225 Difference]: With dead ends: 1222 [2024-09-12 18:26:20,122 INFO L226 Difference]: Without dead ends: 660 [2024-09-12 18:26:20,123 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:26:20,124 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 31 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:20,124 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 166 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:26:20,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-09-12 18:26:20,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 653. [2024-09-12 18:26:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 519 states have (on average 1.1907514450867052) internal successors, (618), 536 states have internal predecessors, (618), 101 states have call successors, (101), 17 states have call predecessors, (101), 16 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-09-12 18:26:20,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 818 transitions. [2024-09-12 18:26:20,379 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 818 transitions. Word has length 115 [2024-09-12 18:26:20,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:20,380 INFO L474 AbstractCegarLoop]: Abstraction has 653 states and 818 transitions. [2024-09-12 18:26:20,380 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:26:20,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 818 transitions. [2024-09-12 18:26:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-09-12 18:26:20,381 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:20,381 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:20,381 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-09-12 18:26:20,381 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:20,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:20,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1367474015, now seen corresponding path program 2 times [2024-09-12 18:26:20,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:20,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933132412] [2024-09-12 18:26:20,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:20,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:20,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918556914] [2024-09-12 18:26:20,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:26:20,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:20,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:20,404 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:20,405 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 18:26:20,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:26:20,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:26:20,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:26:20,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 5 proven. 48 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:26:20,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:21,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:21,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933132412] [2024-09-12 18:26:21,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:21,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918556914] [2024-09-12 18:26:21,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918556914] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:21,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:21,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:26:21,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466578094] [2024-09-12 18:26:21,006 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:21,006 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:26:21,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:21,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:26:21,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:26:21,009 INFO L87 Difference]: Start difference. First operand 653 states and 818 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:26:22,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:22,598 INFO L93 Difference]: Finished difference Result 1127 states and 1469 transitions. [2024-09-12 18:26:22,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:26:22,599 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 143 [2024-09-12 18:26:22,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:22,603 INFO L225 Difference]: With dead ends: 1127 [2024-09-12 18:26:22,603 INFO L226 Difference]: Without dead ends: 1124 [2024-09-12 18:26:22,604 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:26:22,604 INFO L434 NwaCegarLoop]: 125 mSDtfsCounter, 252 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:22,605 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 693 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:26:22,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-09-12 18:26:22,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 645. [2024-09-12 18:26:22,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 511 states have (on average 1.187866927592955) internal successors, (607), 528 states have internal predecessors, (607), 101 states have call successors, (101), 17 states have call predecessors, (101), 16 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-09-12 18:26:22,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 807 transitions. [2024-09-12 18:26:22,828 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 807 transitions. Word has length 143 [2024-09-12 18:26:22,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:22,828 INFO L474 AbstractCegarLoop]: Abstraction has 645 states and 807 transitions. [2024-09-12 18:26:22,828 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:26:22,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 807 transitions. [2024-09-12 18:26:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-09-12 18:26:22,829 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:22,829 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:22,841 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-09-12 18:26:23,030 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:23,030 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:23,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash -557978432, now seen corresponding path program 2 times [2024-09-12 18:26:23,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:23,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659796371] [2024-09-12 18:26:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:23,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:23,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [363048310] [2024-09-12 18:26:23,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:26:23,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:23,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:23,052 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:23,053 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 18:26:23,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:26:23,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:26:23,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:26:23,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:26:23,535 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:24,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:24,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659796371] [2024-09-12 18:26:24,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:24,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363048310] [2024-09-12 18:26:24,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363048310] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:24,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:24,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:26:24,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423467454] [2024-09-12 18:26:24,046 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:24,046 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:26:24,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:24,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:26:24,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:26:24,047 INFO L87 Difference]: Start difference. First operand 645 states and 807 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:26:24,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:24,758 INFO L93 Difference]: Finished difference Result 741 states and 923 transitions. [2024-09-12 18:26:24,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:26:24,759 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 144 [2024-09-12 18:26:24,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:24,763 INFO L225 Difference]: With dead ends: 741 [2024-09-12 18:26:24,763 INFO L226 Difference]: Without dead ends: 738 [2024-09-12 18:26:24,763 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:26:24,764 INFO L434 NwaCegarLoop]: 89 mSDtfsCounter, 83 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:24,764 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 238 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:26:24,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-09-12 18:26:25,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 712. [2024-09-12 18:26:25,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 566 states have (on average 1.1837455830388692) internal successors, (670), 583 states have internal predecessors, (670), 113 states have call successors, (113), 17 states have call predecessors, (113), 16 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-09-12 18:26:25,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 894 transitions. [2024-09-12 18:26:25,094 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 894 transitions. Word has length 144 [2024-09-12 18:26:25,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:25,094 INFO L474 AbstractCegarLoop]: Abstraction has 712 states and 894 transitions. [2024-09-12 18:26:25,094 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:26:25,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 894 transitions. [2024-09-12 18:26:25,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-12 18:26:25,096 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:25,096 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:25,113 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 18:26:25,300 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-09-12 18:26:25,301 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:25,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:25,301 INFO L85 PathProgramCache]: Analyzing trace with hash 653640930, now seen corresponding path program 2 times [2024-09-12 18:26:25,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:25,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786476365] [2024-09-12 18:26:25,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:25,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:25,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038733554] [2024-09-12 18:26:25,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:26:25,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:25,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:25,317 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:25,325 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 18:26:25,379 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:26:25,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:26:25,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:26:25,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:26:25,748 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:26,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:26,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786476365] [2024-09-12 18:26:26,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:26,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038733554] [2024-09-12 18:26:26,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038733554] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:26,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:26,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:26:26,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528630197] [2024-09-12 18:26:26,900 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:26,901 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:26:26,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:26,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:26:26,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:26:26,902 INFO L87 Difference]: Start difference. First operand 712 states and 894 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:26:27,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:27,736 INFO L93 Difference]: Finished difference Result 733 states and 906 transitions. [2024-09-12 18:26:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:26:27,737 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 146 [2024-09-12 18:26:27,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:27,740 INFO L225 Difference]: With dead ends: 733 [2024-09-12 18:26:27,740 INFO L226 Difference]: Without dead ends: 730 [2024-09-12 18:26:27,741 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:26:27,741 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 69 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:27,741 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 494 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:26:27,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-09-12 18:26:27,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 714. [2024-09-12 18:26:27,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 568 states have (on average 1.1725352112676057) internal successors, (666), 585 states have internal predecessors, (666), 113 states have call successors, (113), 17 states have call predecessors, (113), 16 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-09-12 18:26:28,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 890 transitions. [2024-09-12 18:26:28,001 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 890 transitions. Word has length 146 [2024-09-12 18:26:28,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:28,002 INFO L474 AbstractCegarLoop]: Abstraction has 714 states and 890 transitions. [2024-09-12 18:26:28,002 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:26:28,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:28,002 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 890 transitions. [2024-09-12 18:26:28,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-12 18:26:28,003 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:28,003 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:28,022 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 18:26:28,207 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:28,208 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:28,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:28,209 INFO L85 PathProgramCache]: Analyzing trace with hash -630251992, now seen corresponding path program 3 times [2024-09-12 18:26:28,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:28,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47109300] [2024-09-12 18:26:28,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:28,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:28,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [54245449] [2024-09-12 18:26:28,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:26:28,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:28,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:28,235 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:28,237 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 18:26:28,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:26:28,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:26:28,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 18:26:28,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 45 proven. 17 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-09-12 18:26:28,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:29,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:29,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47109300] [2024-09-12 18:26:29,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:29,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54245449] [2024-09-12 18:26:29,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54245449] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:29,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:29,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:26:29,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610140920] [2024-09-12 18:26:29,069 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:29,070 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:26:29,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:29,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:26:29,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:26:29,071 INFO L87 Difference]: Start difference. First operand 714 states and 890 transitions. Second operand has 12 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:26:30,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:30,150 INFO L93 Difference]: Finished difference Result 874 states and 1106 transitions. [2024-09-12 18:26:30,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:26:30,151 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 146 [2024-09-12 18:26:30,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:30,155 INFO L225 Difference]: With dead ends: 874 [2024-09-12 18:26:30,155 INFO L226 Difference]: Without dead ends: 870 [2024-09-12 18:26:30,156 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:26:30,156 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 386 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:30,156 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 366 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:26:30,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-09-12 18:26:30,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 714. [2024-09-12 18:26:30,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 568 states have (on average 1.1654929577464788) internal successors, (662), 585 states have internal predecessors, (662), 113 states have call successors, (113), 17 states have call predecessors, (113), 16 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-09-12 18:26:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 886 transitions. [2024-09-12 18:26:30,426 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 886 transitions. Word has length 146 [2024-09-12 18:26:30,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:30,427 INFO L474 AbstractCegarLoop]: Abstraction has 714 states and 886 transitions. [2024-09-12 18:26:30,427 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:26:30,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:30,427 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 886 transitions. [2024-09-12 18:26:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-09-12 18:26:30,428 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:30,428 INFO L216 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:30,434 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 18:26:30,628 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 18:26:30,629 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:30,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:30,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2066949266, now seen corresponding path program 2 times [2024-09-12 18:26:30,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:30,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998795451] [2024-09-12 18:26:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:30,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:30,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942698288] [2024-09-12 18:26:30,648 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:26:30,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:30,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:30,650 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:30,652 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 18:26:30,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:26:30,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:26:30,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 18:26:30,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:26:31,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 37 proven. 48 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:26:32,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:32,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998795451] [2024-09-12 18:26:32,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:32,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942698288] [2024-09-12 18:26:32,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942698288] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:26:32,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:26:32,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 29 [2024-09-12 18:26:32,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399080673] [2024-09-12 18:26:32,064 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:32,065 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 18:26:32,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:32,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 18:26:32,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=682, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:26:32,066 INFO L87 Difference]: Start difference. First operand 714 states and 886 transitions. Second operand has 29 states, 29 states have (on average 5.103448275862069) internal successors, (148), 26 states have internal predecessors, (148), 13 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 14 states have call predecessors, (31), 13 states have call successors, (31) [2024-09-12 18:26:35,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:35,343 INFO L93 Difference]: Finished difference Result 1080 states and 1366 transitions. [2024-09-12 18:26:35,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-09-12 18:26:35,344 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 5.103448275862069) internal successors, (148), 26 states have internal predecessors, (148), 13 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 14 states have call predecessors, (31), 13 states have call successors, (31) Word has length 150 [2024-09-12 18:26:35,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:35,348 INFO L225 Difference]: With dead ends: 1080 [2024-09-12 18:26:35,348 INFO L226 Difference]: Without dead ends: 1071 [2024-09-12 18:26:35,349 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 962 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=619, Invalid=3041, Unknown=0, NotChecked=0, Total=3660 [2024-09-12 18:26:35,349 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 630 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:35,350 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 630 Invalid, 2511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-09-12 18:26:35,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-09-12 18:26:35,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1019. [2024-09-12 18:26:35,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 818 states have (on average 1.1943765281173595) internal successors, (977), 835 states have internal predecessors, (977), 163 states have call successors, (163), 22 states have call predecessors, (163), 21 states have return successors, (161), 161 states have call predecessors, (161), 161 states have call successors, (161) [2024-09-12 18:26:35,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1301 transitions. [2024-09-12 18:26:35,770 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1301 transitions. Word has length 150 [2024-09-12 18:26:35,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:35,770 INFO L474 AbstractCegarLoop]: Abstraction has 1019 states and 1301 transitions. [2024-09-12 18:26:35,771 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.103448275862069) internal successors, (148), 26 states have internal predecessors, (148), 13 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 14 states have call predecessors, (31), 13 states have call successors, (31) [2024-09-12 18:26:35,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:35,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1301 transitions. [2024-09-12 18:26:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-09-12 18:26:35,772 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:35,772 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:35,792 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 18:26:35,973 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 18:26:35,973 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:35,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:35,974 INFO L85 PathProgramCache]: Analyzing trace with hash 190999859, now seen corresponding path program 3 times [2024-09-12 18:26:35,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:35,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367586329] [2024-09-12 18:26:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:35,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:35,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100322143] [2024-09-12 18:26:35,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:26:35,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:35,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:36,000 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:36,001 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 18:26:36,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:26:36,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:26:36,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-09-12 18:26:36,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:26:37,128 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 127 proven. 58 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-09-12 18:26:37,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:26:38,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:38,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367586329] [2024-09-12 18:26:38,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:26:38,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100322143] [2024-09-12 18:26:38,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100322143] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:26:38,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:26:38,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 18:26:38,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178388431] [2024-09-12 18:26:38,311 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:26:38,311 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:26:38,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:38,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:26:38,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:26:38,312 INFO L87 Difference]: Start difference. First operand 1019 states and 1301 transitions. Second operand has 18 states, 16 states have (on average 4.4375) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:26:40,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:26:44,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:26:48,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:26:52,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:26:57,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:26:58,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:58,828 INFO L93 Difference]: Finished difference Result 1813 states and 2413 transitions. [2024-09-12 18:26:58,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 18:26:58,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.4375) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 153 [2024-09-12 18:26:58,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:58,836 INFO L225 Difference]: With dead ends: 1813 [2024-09-12 18:26:58,836 INFO L226 Difference]: Without dead ends: 1804 [2024-09-12 18:26:58,837 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=164, Invalid=766, Unknown=0, NotChecked=0, Total=930 [2024-09-12 18:26:58,838 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 270 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 43 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:58,838 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 523 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1542 Invalid, 4 Unknown, 0 Unchecked, 18.8s Time] [2024-09-12 18:26:58,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2024-09-12 18:26:59,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1751. [2024-09-12 18:26:59,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1418 states have (on average 1.2002820874471085) internal successors, (1702), 1435 states have internal predecessors, (1702), 295 states have call successors, (295), 22 states have call predecessors, (295), 21 states have return successors, (293), 293 states have call predecessors, (293), 293 states have call successors, (293) [2024-09-12 18:26:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2290 transitions. [2024-09-12 18:26:59,705 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2290 transitions. Word has length 153 [2024-09-12 18:26:59,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:59,706 INFO L474 AbstractCegarLoop]: Abstraction has 1751 states and 2290 transitions. [2024-09-12 18:26:59,706 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.4375) internal successors, (71), 16 states have internal predecessors, (71), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:26:59,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2290 transitions. [2024-09-12 18:26:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-09-12 18:26:59,707 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:59,707 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:59,714 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 18:26:59,907 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:26:59,908 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:26:59,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:59,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1132727147, now seen corresponding path program 3 times [2024-09-12 18:26:59,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:59,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582953342] [2024-09-12 18:26:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:59,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:26:59,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720720556] [2024-09-12 18:26:59,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:26:59,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:59,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:26:59,930 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:26:59,932 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 18:27:00,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:27:00,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:27:00,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 18:27:00,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 76 proven. 59 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-09-12 18:27:00,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:01,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:01,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582953342] [2024-09-12 18:27:01,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:27:01,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720720556] [2024-09-12 18:27:01,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720720556] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:27:01,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:27:01,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-09-12 18:27:01,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794387516] [2024-09-12 18:27:01,298 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:01,298 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:27:01,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:01,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:27:01,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:27:01,299 INFO L87 Difference]: Start difference. First operand 1751 states and 2290 transitions. Second operand has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:27:05,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:05,034 INFO L93 Difference]: Finished difference Result 1787 states and 2317 transitions. [2024-09-12 18:27:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:27:05,035 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 155 [2024-09-12 18:27:05,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:05,042 INFO L225 Difference]: With dead ends: 1787 [2024-09-12 18:27:05,043 INFO L226 Difference]: Without dead ends: 1766 [2024-09-12 18:27:05,044 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:27:05,044 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 173 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:05,044 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 611 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-09-12 18:27:05,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-09-12 18:27:05,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1732. [2024-09-12 18:27:05,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1401 states have (on average 1.1798715203426124) internal successors, (1653), 1418 states have internal predecessors, (1653), 293 states have call successors, (293), 22 states have call predecessors, (293), 21 states have return successors, (291), 291 states have call predecessors, (291), 291 states have call successors, (291) [2024-09-12 18:27:05,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2237 transitions. [2024-09-12 18:27:05,927 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2237 transitions. Word has length 155 [2024-09-12 18:27:05,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:05,928 INFO L474 AbstractCegarLoop]: Abstraction has 1732 states and 2237 transitions. [2024-09-12 18:27:05,928 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:27:05,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2237 transitions. [2024-09-12 18:27:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 18:27:05,930 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:05,930 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:27:05,939 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 18:27:06,131 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 18:27:06,131 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:27:06,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash 79307923, now seen corresponding path program 3 times [2024-09-12 18:27:06,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:06,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106020826] [2024-09-12 18:27:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:06,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:27:06,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1445037746] [2024-09-12 18:27:06,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:27:06,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:06,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:06,159 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 18:27:06,161 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 18:27:06,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:27:06,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:27:06,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:27:06,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 51 proven. 5 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2024-09-12 18:27:06,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:11,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:11,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106020826] [2024-09-12 18:27:11,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:27:11,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445037746] [2024-09-12 18:27:11,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445037746] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:27:11,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:27:11,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:27:11,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216978395] [2024-09-12 18:27:11,560 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:11,560 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:27:11,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:11,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:27:11,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2024-09-12 18:27:11,561 INFO L87 Difference]: Start difference. First operand 1732 states and 2237 transitions. Second operand has 12 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:27:12,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:12,920 INFO L93 Difference]: Finished difference Result 1744 states and 2244 transitions. [2024-09-12 18:27:12,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:27:12,920 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 181 [2024-09-12 18:27:12,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:12,928 INFO L225 Difference]: With dead ends: 1744 [2024-09-12 18:27:12,929 INFO L226 Difference]: Without dead ends: 1741 [2024-09-12 18:27:12,930 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=122, Invalid=429, Unknown=1, NotChecked=0, Total=552 [2024-09-12 18:27:12,930 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 332 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:12,930 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 194 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:27:12,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2024-09-12 18:27:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1732. [2024-09-12 18:27:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1401 states have (on average 1.177730192719486) internal successors, (1650), 1418 states have internal predecessors, (1650), 293 states have call successors, (293), 22 states have call predecessors, (293), 21 states have return successors, (291), 291 states have call predecessors, (291), 291 states have call successors, (291) [2024-09-12 18:27:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2234 transitions. [2024-09-12 18:27:13,831 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2234 transitions. Word has length 181 [2024-09-12 18:27:13,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:13,832 INFO L474 AbstractCegarLoop]: Abstraction has 1732 states and 2234 transitions. [2024-09-12 18:27:13,832 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:27:13,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:13,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2234 transitions. [2024-09-12 18:27:13,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-09-12 18:27:13,833 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:13,833 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:27:13,847 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 18:27:14,034 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:14,034 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:27:14,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1836421620, now seen corresponding path program 4 times [2024-09-12 18:27:14,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:14,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946370202] [2024-09-12 18:27:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:14,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:27:14,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1065215667] [2024-09-12 18:27:14,051 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:27:14,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:14,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:14,055 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 18:27:14,056 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 18:27:14,130 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:27:14,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:27:14,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:27:14,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:27:14,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:15,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:15,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946370202] [2024-09-12 18:27:15,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:27:15,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065215667] [2024-09-12 18:27:15,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065215667] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:27:15,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:27:15,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:27:15,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431924076] [2024-09-12 18:27:15,223 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:15,223 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:27:15,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:27:15,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:27:15,224 INFO L87 Difference]: Start difference. First operand 1732 states and 2234 transitions. Second operand has 14 states, 13 states have (on average 6.923076923076923) internal successors, (90), 14 states have internal predecessors, (90), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-09-12 18:27:16,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:16,709 INFO L93 Difference]: Finished difference Result 1863 states and 2396 transitions. [2024-09-12 18:27:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:27:16,709 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.923076923076923) internal successors, (90), 14 states have internal predecessors, (90), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 182 [2024-09-12 18:27:16,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:16,717 INFO L225 Difference]: With dead ends: 1863 [2024-09-12 18:27:16,717 INFO L226 Difference]: Without dead ends: 1862 [2024-09-12 18:27:16,718 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:27:16,719 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 87 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:16,719 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 270 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:27:16,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2024-09-12 18:27:17,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1742. [2024-09-12 18:27:17,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1410 states have (on average 1.176595744680851) internal successors, (1659), 1427 states have internal predecessors, (1659), 294 states have call successors, (294), 22 states have call predecessors, (294), 21 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2024-09-12 18:27:17,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2245 transitions. [2024-09-12 18:27:17,804 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2245 transitions. Word has length 182 [2024-09-12 18:27:17,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:17,805 INFO L474 AbstractCegarLoop]: Abstraction has 1742 states and 2245 transitions. [2024-09-12 18:27:17,805 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.923076923076923) internal successors, (90), 14 states have internal predecessors, (90), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-09-12 18:27:17,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2245 transitions. [2024-09-12 18:27:17,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-09-12 18:27:17,806 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:17,806 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-09-12 18:27:17,820 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-09-12 18:27:18,007 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:27:18,007 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:27:18,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:18,008 INFO L85 PathProgramCache]: Analyzing trace with hash 430383918, now seen corresponding path program 4 times [2024-09-12 18:27:18,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:18,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769176109] [2024-09-12 18:27:18,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:18,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:27:18,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99239542] [2024-09-12 18:27:18,024 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:27:18,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:18,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:18,026 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 18:27:18,028 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 18:27:18,098 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:27:18,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:27:18,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 18:27:18,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:18,760 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:27:18,760 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:31,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:31,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769176109] [2024-09-12 18:27:31,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:27:31,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99239542] [2024-09-12 18:27:31,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99239542] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:27:31,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:27:31,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:27:31,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249173526] [2024-09-12 18:27:31,375 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:31,375 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:27:31,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:31,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:27:31,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=410, Unknown=3, NotChecked=0, Total=506 [2024-09-12 18:27:31,376 INFO L87 Difference]: Start difference. First operand 1742 states and 2245 transitions. Second operand has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-09-12 18:27:33,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:33,304 INFO L93 Difference]: Finished difference Result 1857 states and 2386 transitions. [2024-09-12 18:27:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:27:33,305 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 184 [2024-09-12 18:27:33,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:33,314 INFO L225 Difference]: With dead ends: 1857 [2024-09-12 18:27:33,314 INFO L226 Difference]: Without dead ends: 1856 [2024-09-12 18:27:33,316 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=190, Invalid=863, Unknown=3, NotChecked=0, Total=1056 [2024-09-12 18:27:33,316 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 192 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:33,320 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 388 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:27:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2024-09-12 18:27:34,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1744. [2024-09-12 18:27:34,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1412 states have (on average 1.1763456090651558) internal successors, (1661), 1429 states have internal predecessors, (1661), 294 states have call successors, (294), 22 states have call predecessors, (294), 21 states have return successors, (292), 292 states have call predecessors, (292), 292 states have call successors, (292) [2024-09-12 18:27:34,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2247 transitions. [2024-09-12 18:27:34,345 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2247 transitions. Word has length 184 [2024-09-12 18:27:34,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:34,346 INFO L474 AbstractCegarLoop]: Abstraction has 1744 states and 2247 transitions. [2024-09-12 18:27:34,346 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-09-12 18:27:34,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2247 transitions. [2024-09-12 18:27:34,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-09-12 18:27:34,349 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:34,349 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:27:34,367 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 18:27:34,549 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:27:34,550 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:27:34,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:34,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1178711633, now seen corresponding path program 2 times [2024-09-12 18:27:34,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:34,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177532268] [2024-09-12 18:27:34,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:34,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:27:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:27:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:27:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:27:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:27:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:27:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:27:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:27:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:27:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:27:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:27:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 18:27:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 18:27:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:27:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 18:27:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:27:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,731 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:27:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 18:27:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 18:27:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 18:27:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 18:27:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:27:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 18:27:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:27:34,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:34,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177532268] [2024-09-12 18:27:34,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177532268] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:27:34,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701548872] [2024-09-12 18:27:34,752 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:27:34,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:34,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:34,754 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 18:27:34,755 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 18:27:34,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:27:34,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:27:34,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:27:34,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:27:34,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:27:35,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701548872] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:27:35,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:27:35,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-09-12 18:27:35,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094917443] [2024-09-12 18:27:35,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:35,250 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:27:35,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:35,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:27:35,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:27:35,251 INFO L87 Difference]: Start difference. First operand 1744 states and 2247 transitions. Second operand has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-09-12 18:27:38,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:38,583 INFO L93 Difference]: Finished difference Result 4151 states and 5623 transitions. [2024-09-12 18:27:38,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:27:38,584 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 204 [2024-09-12 18:27:38,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:38,594 INFO L225 Difference]: With dead ends: 4151 [2024-09-12 18:27:38,595 INFO L226 Difference]: Without dead ends: 4150 [2024-09-12 18:27:38,596 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:27:38,597 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 650 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:38,597 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 620 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:27:38,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4150 states. [2024-09-12 18:27:40,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4150 to 3424. [2024-09-12 18:27:40,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3424 states, 2784 states have (on average 1.2413793103448276) internal successors, (3456), 2801 states have internal predecessors, (3456), 602 states have call successors, (602), 22 states have call predecessors, (602), 21 states have return successors, (600), 600 states have call predecessors, (600), 600 states have call successors, (600) [2024-09-12 18:27:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3424 states to 3424 states and 4658 transitions. [2024-09-12 18:27:40,330 INFO L78 Accepts]: Start accepts. Automaton has 3424 states and 4658 transitions. Word has length 204 [2024-09-12 18:27:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:40,331 INFO L474 AbstractCegarLoop]: Abstraction has 3424 states and 4658 transitions. [2024-09-12 18:27:40,331 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-09-12 18:27:40,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:40,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3424 states and 4658 transitions. [2024-09-12 18:27:40,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-09-12 18:27:40,334 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:40,334 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:27:40,352 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-09-12 18:27:40,534 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:40,535 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:27:40,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:40,535 INFO L85 PathProgramCache]: Analyzing trace with hash -667404181, now seen corresponding path program 1 times [2024-09-12 18:27:40,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:40,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543634518] [2024-09-12 18:27:40,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:40,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:27:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:27:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:27:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:27:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:27:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:27:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,731 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:27:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:27:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:27:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:27:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:27:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 18:27:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 18:27:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:27:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 18:27:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 18:27:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 18:27:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 18:27:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 18:27:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 18:27:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:27:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:27:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:27:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 18:27:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:27:40,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:40,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543634518] [2024-09-12 18:27:40,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543634518] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:27:40,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183574348] [2024-09-12 18:27:40,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:40,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:40,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:40,786 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 18:27:40,788 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 18:27:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:40,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:27:40,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:41,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 558 proven. 39 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2024-09-12 18:27:41,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:41,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 110 proven. 39 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-09-12 18:27:41,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183574348] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:27:41,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:27:41,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 15 [2024-09-12 18:27:41,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996562511] [2024-09-12 18:27:41,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:41,168 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:27:41,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:41,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:27:41,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:27:41,169 INFO L87 Difference]: Start difference. First operand 3424 states and 4658 transitions. Second operand has 15 states, 15 states have (on average 13.0) internal successors, (195), 15 states have internal predecessors, (195), 13 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-09-12 18:27:44,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:44,116 INFO L93 Difference]: Finished difference Result 5771 states and 7932 transitions. [2024-09-12 18:27:44,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:27:44,117 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 13.0) internal successors, (195), 15 states have internal predecessors, (195), 13 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) Word has length 219 [2024-09-12 18:27:44,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:44,127 INFO L225 Difference]: With dead ends: 5771 [2024-09-12 18:27:44,128 INFO L226 Difference]: Without dead ends: 3465 [2024-09-12 18:27:44,136 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 479 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=687, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:27:44,136 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 263 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:44,136 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 610 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:27:44,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2024-09-12 18:27:45,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3345. [2024-09-12 18:27:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3345 states, 2722 states have (on average 1.2457751653196178) internal successors, (3391), 2739 states have internal predecessors, (3391), 586 states have call successors, (586), 21 states have call predecessors, (586), 20 states have return successors, (584), 584 states have call predecessors, (584), 584 states have call successors, (584) [2024-09-12 18:27:45,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3345 states to 3345 states and 4561 transitions. [2024-09-12 18:27:45,965 INFO L78 Accepts]: Start accepts. Automaton has 3345 states and 4561 transitions. Word has length 219 [2024-09-12 18:27:45,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:45,965 INFO L474 AbstractCegarLoop]: Abstraction has 3345 states and 4561 transitions. [2024-09-12 18:27:45,965 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 13.0) internal successors, (195), 15 states have internal predecessors, (195), 13 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-09-12 18:27:45,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:45,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3345 states and 4561 transitions. [2024-09-12 18:27:45,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-09-12 18:27:45,967 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:45,967 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:27:45,979 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 18:27:46,167 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-09-12 18:27:46,168 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:27:46,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:46,168 INFO L85 PathProgramCache]: Analyzing trace with hash -148012869, now seen corresponding path program 2 times [2024-09-12 18:27:46,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:46,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713800194] [2024-09-12 18:27:46,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:46,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:27:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:27:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:27:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:27:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:27:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:27:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:27:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:27:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:27:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:27:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:27:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 18:27:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 18:27:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:27:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 18:27:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:27:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:27:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 18:27:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 18:27:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:27:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 18:27:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:27:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:27:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 18:27:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:27:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:27:46,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:46,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713800194] [2024-09-12 18:27:46,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713800194] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:27:46,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940076780] [2024-09-12 18:27:46,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:27:46,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:46,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:46,438 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 18:27:46,440 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 18:27:46,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:27:46,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:27:46,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:27:46,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:27:46,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:27:47,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940076780] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:27:47,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:27:47,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-09-12 18:27:47,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353537042] [2024-09-12 18:27:47,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:47,111 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:27:47,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:47,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:27:47,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=292, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:27:47,112 INFO L87 Difference]: Start difference. First operand 3345 states and 4561 transitions. Second operand has 22 states, 21 states have (on average 14.19047619047619) internal successors, (298), 22 states have internal predecessors, (298), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (66), 21 states have call predecessors, (66), 21 states have call successors, (66) [2024-09-12 18:27:51,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:51,863 INFO L93 Difference]: Finished difference Result 6499 states and 8961 transitions. [2024-09-12 18:27:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 18:27:51,863 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 14.19047619047619) internal successors, (298), 22 states have internal predecessors, (298), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (66), 21 states have call predecessors, (66), 21 states have call successors, (66) Word has length 219 [2024-09-12 18:27:51,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:51,887 INFO L225 Difference]: With dead ends: 6499 [2024-09-12 18:27:51,887 INFO L226 Difference]: Without dead ends: 6498 [2024-09-12 18:27:51,892 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=564, Invalid=918, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 18:27:51,893 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 1006 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:51,893 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 520 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:27:51,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6498 states. [2024-09-12 18:27:54,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6498 to 4149. [2024-09-12 18:27:54,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4149 states, 3385 states have (on average 1.2295420974889217) internal successors, (4162), 3402 states have internal predecessors, (4162), 727 states have call successors, (727), 21 states have call predecessors, (727), 20 states have return successors, (725), 725 states have call predecessors, (725), 725 states have call successors, (725) [2024-09-12 18:27:54,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 5614 transitions. [2024-09-12 18:27:54,502 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 5614 transitions. Word has length 219 [2024-09-12 18:27:54,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:27:54,502 INFO L474 AbstractCegarLoop]: Abstraction has 4149 states and 5614 transitions. [2024-09-12 18:27:54,502 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 14.19047619047619) internal successors, (298), 22 states have internal predecessors, (298), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (66), 21 states have call predecessors, (66), 21 states have call successors, (66) [2024-09-12 18:27:54,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:54,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 5614 transitions. [2024-09-12 18:27:54,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-09-12 18:27:54,504 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:27:54,504 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:27:54,522 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-09-12 18:27:54,704 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:54,705 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:27:54,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:27:54,705 INFO L85 PathProgramCache]: Analyzing trace with hash 909612632, now seen corresponding path program 5 times [2024-09-12 18:27:54,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:27:54,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593237600] [2024-09-12 18:27:54,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:27:54,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:27:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:27:54,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [645192521] [2024-09-12 18:27:54,723 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:27:54,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:27:54,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:27:54,725 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 18:27:54,734 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 18:27:54,821 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-09-12 18:27:54,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:27:54,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 18:27:54,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:27:55,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 12 proven. 241 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2024-09-12 18:27:55,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:27:56,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:27:56,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593237600] [2024-09-12 18:27:56,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:27:56,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645192521] [2024-09-12 18:27:56,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645192521] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:27:56,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:27:56,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 18:27:56,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096312875] [2024-09-12 18:27:56,336 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:27:56,336 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:27:56,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:27:56,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:27:56,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:27:56,337 INFO L87 Difference]: Start difference. First operand 4149 states and 5614 transitions. Second operand has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 18 states have internal predecessors, (111), 9 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2024-09-12 18:27:59,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:27:59,592 INFO L93 Difference]: Finished difference Result 4166 states and 5627 transitions. [2024-09-12 18:27:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 18:27:59,593 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 18 states have internal predecessors, (111), 9 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) Word has length 220 [2024-09-12 18:27:59,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:27:59,608 INFO L225 Difference]: With dead ends: 4166 [2024-09-12 18:27:59,608 INFO L226 Difference]: Without dead ends: 4165 [2024-09-12 18:27:59,611 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:27:59,612 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 69 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 2079 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:27:59,612 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 608 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2079 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:27:59,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2024-09-12 18:28:01,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 4149. [2024-09-12 18:28:01,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4149 states, 3385 states have (on average 1.2292466765140324) internal successors, (4161), 3402 states have internal predecessors, (4161), 727 states have call successors, (727), 21 states have call predecessors, (727), 20 states have return successors, (725), 725 states have call predecessors, (725), 725 states have call successors, (725) [2024-09-12 18:28:01,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 5613 transitions. [2024-09-12 18:28:01,989 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 5613 transitions. Word has length 220 [2024-09-12 18:28:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:01,989 INFO L474 AbstractCegarLoop]: Abstraction has 4149 states and 5613 transitions. [2024-09-12 18:28:01,989 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 18 states have internal predecessors, (111), 9 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2024-09-12 18:28:01,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 5613 transitions. [2024-09-12 18:28:01,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-09-12 18:28:01,991 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:01,991 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-09-12 18:28:02,009 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-09-12 18:28:02,191 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:02,192 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:28:02,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:02,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2035586950, now seen corresponding path program 5 times [2024-09-12 18:28:02,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:02,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925049343] [2024-09-12 18:28:02,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:02,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:02,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997051731] [2024-09-12 18:28:02,213 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:28:02,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:02,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:02,216 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 18:28:02,218 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 18:28:02,293 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-09-12 18:28:02,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:28:02,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:28:02,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1116 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:28:02,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:04,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:04,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925049343] [2024-09-12 18:28:04,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:04,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997051731] [2024-09-12 18:28:04,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997051731] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:28:04,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:28:04,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:28:04,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102359741] [2024-09-12 18:28:04,579 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:04,579 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:28:04,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:04,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:28:04,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:28:04,580 INFO L87 Difference]: Start difference. First operand 4149 states and 5613 transitions. Second operand has 16 states, 15 states have (on average 7.333333333333333) internal successors, (110), 16 states have internal predecessors, (110), 9 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-09-12 18:28:07,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:07,940 INFO L93 Difference]: Finished difference Result 4292 states and 5804 transitions. [2024-09-12 18:28:07,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:28:07,940 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.333333333333333) internal successors, (110), 16 states have internal predecessors, (110), 9 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 222 [2024-09-12 18:28:07,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:07,952 INFO L225 Difference]: With dead ends: 4292 [2024-09-12 18:28:07,952 INFO L226 Difference]: Without dead ends: 4291 [2024-09-12 18:28:07,954 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=212, Invalid=718, Unknown=0, NotChecked=0, Total=930 [2024-09-12 18:28:07,954 INFO L434 NwaCegarLoop]: 113 mSDtfsCounter, 69 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 2217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:07,954 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 678 Invalid, 2217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2217 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:28:07,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2024-09-12 18:28:10,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 4149. [2024-09-12 18:28:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4149 states, 3385 states have (on average 1.2289512555391433) internal successors, (4160), 3402 states have internal predecessors, (4160), 727 states have call successors, (727), 21 states have call predecessors, (727), 20 states have return successors, (725), 725 states have call predecessors, (725), 725 states have call successors, (725) [2024-09-12 18:28:10,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 5612 transitions. [2024-09-12 18:28:10,322 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 5612 transitions. Word has length 222 [2024-09-12 18:28:10,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:10,323 INFO L474 AbstractCegarLoop]: Abstraction has 4149 states and 5612 transitions. [2024-09-12 18:28:10,323 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.333333333333333) internal successors, (110), 16 states have internal predecessors, (110), 9 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-09-12 18:28:10,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:10,323 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 5612 transitions. [2024-09-12 18:28:10,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-09-12 18:28:10,324 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:10,324 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:28:10,340 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 18:28:10,525 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-09-12 18:28:10,525 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:28:10,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:10,525 INFO L85 PathProgramCache]: Analyzing trace with hash 356824612, now seen corresponding path program 4 times [2024-09-12 18:28:10,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:10,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985325264] [2024-09-12 18:28:10,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:10,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:10,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017072865] [2024-09-12 18:28:10,544 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:28:10,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:10,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:10,547 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 18:28:10,557 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 18:28:10,639 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:28:10,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:28:10,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:28:10,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:11,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 138 proven. 43 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:28:11,111 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:11,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:11,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985325264] [2024-09-12 18:28:11,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:11,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017072865] [2024-09-12 18:28:11,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017072865] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:28:11,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:28:11,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:28:11,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135967034] [2024-09-12 18:28:11,243 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:11,243 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:28:11,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:11,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:28:11,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:28:11,245 INFO L87 Difference]: Start difference. First operand 4149 states and 5612 transitions. Second operand has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) [2024-09-12 18:28:14,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:14,661 INFO L93 Difference]: Finished difference Result 4255 states and 5763 transitions. [2024-09-12 18:28:14,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:28:14,662 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), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) Word has length 228 [2024-09-12 18:28:14,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:14,673 INFO L225 Difference]: With dead ends: 4255 [2024-09-12 18:28:14,673 INFO L226 Difference]: Without dead ends: 4238 [2024-09-12 18:28:14,674 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:28:14,675 INFO L434 NwaCegarLoop]: 169 mSDtfsCounter, 229 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:14,675 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 621 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:28:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2024-09-12 18:28:17,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 4064. [2024-09-12 18:28:17,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 3314 states have (on average 1.2278213639106819) internal successors, (4069), 3331 states have internal predecessors, (4069), 713 states have call successors, (713), 21 states have call predecessors, (713), 20 states have return successors, (711), 711 states have call predecessors, (711), 711 states have call successors, (711) [2024-09-12 18:28:17,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5493 transitions. [2024-09-12 18:28:17,038 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5493 transitions. Word has length 228 [2024-09-12 18:28:17,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:17,038 INFO L474 AbstractCegarLoop]: Abstraction has 4064 states and 5493 transitions. [2024-09-12 18:28:17,038 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), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) [2024-09-12 18:28:17,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:17,039 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5493 transitions. [2024-09-12 18:28:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-09-12 18:28:17,040 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:17,041 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:28:17,058 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 18:28:17,241 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-09-12 18:28:17,241 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:28:17,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:17,242 INFO L85 PathProgramCache]: Analyzing trace with hash -2096093788, now seen corresponding path program 6 times [2024-09-12 18:28:17,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:17,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543092049] [2024-09-12 18:28:17,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:17,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:17,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492866374] [2024-09-12 18:28:17,282 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:28:17,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:17,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:17,284 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 18:28:17,285 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 18:28:17,337 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-09-12 18:28:17,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:28:17,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:28:17,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1591 backedges. 86 proven. 114 refuted. 0 times theorem prover too weak. 1391 trivial. 0 not checked. [2024-09-12 18:28:17,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:18,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:18,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543092049] [2024-09-12 18:28:18,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:18,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492866374] [2024-09-12 18:28:18,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492866374] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:28:18,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:28:18,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:28:18,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752331088] [2024-09-12 18:28:18,616 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:18,616 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:28:18,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:18,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:28:18,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:28:18,617 INFO L87 Difference]: Start difference. First operand 4064 states and 5493 transitions. Second operand has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 5 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-09-12 18:28:21,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:21,324 INFO L93 Difference]: Finished difference Result 4074 states and 5498 transitions. [2024-09-12 18:28:21,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:28:21,325 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 5 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 258 [2024-09-12 18:28:21,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:21,337 INFO L225 Difference]: With dead ends: 4074 [2024-09-12 18:28:21,337 INFO L226 Difference]: Without dead ends: 4073 [2024-09-12 18:28:21,338 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:28:21,338 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 163 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:21,338 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 183 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:28:21,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2024-09-12 18:28:23,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4064. [2024-09-12 18:28:23,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 3314 states have (on average 1.2272178636089317) internal successors, (4067), 3331 states have internal predecessors, (4067), 713 states have call successors, (713), 21 states have call predecessors, (713), 20 states have return successors, (711), 711 states have call predecessors, (711), 711 states have call successors, (711) [2024-09-12 18:28:23,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5491 transitions. [2024-09-12 18:28:23,799 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5491 transitions. Word has length 258 [2024-09-12 18:28:23,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:23,799 INFO L474 AbstractCegarLoop]: Abstraction has 4064 states and 5491 transitions. [2024-09-12 18:28:23,800 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 5 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-09-12 18:28:23,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5491 transitions. [2024-09-12 18:28:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-09-12 18:28:23,802 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:23,802 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2024-09-12 18:28:23,820 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 18:28:24,002 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:24,002 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:28:24,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:24,003 INFO L85 PathProgramCache]: Analyzing trace with hash -6466362, now seen corresponding path program 6 times [2024-09-12 18:28:24,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:24,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798595060] [2024-09-12 18:28:24,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:24,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:24,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448728452] [2024-09-12 18:28:24,026 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:28:24,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:24,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:24,028 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 18:28:24,032 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 18:28:24,074 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-09-12 18:28:24,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:28:24,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:28:24,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:24,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 80 proven. 8 refuted. 0 times theorem prover too weak. 1505 trivial. 0 not checked. [2024-09-12 18:28:24,493 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:24,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:24,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798595060] [2024-09-12 18:28:24,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:24,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448728452] [2024-09-12 18:28:24,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448728452] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:28:24,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:28:24,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:28:24,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581382789] [2024-09-12 18:28:24,937 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:24,937 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:28:24,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:24,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:28:24,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:28:24,938 INFO L87 Difference]: Start difference. First operand 4064 states and 5491 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:28:27,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:27,710 INFO L93 Difference]: Finished difference Result 4074 states and 5496 transitions. [2024-09-12 18:28:27,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:28:27,710 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 260 [2024-09-12 18:28:27,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:27,721 INFO L225 Difference]: With dead ends: 4074 [2024-09-12 18:28:27,721 INFO L226 Difference]: Without dead ends: 4073 [2024-09-12 18:28:27,722 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:28:27,723 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 96 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:27,723 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 301 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:28:27,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2024-09-12 18:28:29,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4064. [2024-09-12 18:28:29,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 3314 states have (on average 1.2266143633071815) internal successors, (4065), 3331 states have internal predecessors, (4065), 713 states have call successors, (713), 21 states have call predecessors, (713), 20 states have return successors, (711), 711 states have call predecessors, (711), 711 states have call successors, (711) [2024-09-12 18:28:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5489 transitions. [2024-09-12 18:28:30,006 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5489 transitions. Word has length 260 [2024-09-12 18:28:30,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:30,006 INFO L474 AbstractCegarLoop]: Abstraction has 4064 states and 5489 transitions. [2024-09-12 18:28:30,006 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:28:30,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:30,007 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5489 transitions. [2024-09-12 18:28:30,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-09-12 18:28:30,008 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:30,008 INFO L216 NwaCegarLoop]: trace histogram [27, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:28:30,021 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 18:28:30,209 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:30,209 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:28:30,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:30,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1811406218, now seen corresponding path program 3 times [2024-09-12 18:28:30,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:30,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181352415] [2024-09-12 18:28:30,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:30,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:30,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206108235] [2024-09-12 18:28:30,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:28:30,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:30,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:30,230 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 18:28:30,232 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 18:28:30,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:28:30,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:28:30,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 18:28:30,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:30,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 126 proven. 10 refuted. 0 times theorem prover too weak. 1510 trivial. 0 not checked. [2024-09-12 18:28:30,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:31,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 126 proven. 5 refuted. 0 times theorem prover too weak. 1515 trivial. 0 not checked. [2024-09-12 18:28:31,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:31,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181352415] [2024-09-12 18:28:31,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:31,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206108235] [2024-09-12 18:28:31,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206108235] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:28:31,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:28:31,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 18 [2024-09-12 18:28:31,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749678018] [2024-09-12 18:28:31,223 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:31,223 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:28:31,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:31,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:28:31,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:28:31,224 INFO L87 Difference]: Start difference. First operand 4064 states and 5489 transitions. Second operand has 18 states, 18 states have (on average 5.277777777777778) internal successors, (95), 16 states have internal predecessors, (95), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-09-12 18:28:34,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:34,059 INFO L93 Difference]: Finished difference Result 4070 states and 5494 transitions. [2024-09-12 18:28:34,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:28:34,060 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.277777777777778) internal successors, (95), 16 states have internal predecessors, (95), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 264 [2024-09-12 18:28:34,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:34,072 INFO L225 Difference]: With dead ends: 4070 [2024-09-12 18:28:34,073 INFO L226 Difference]: Without dead ends: 4044 [2024-09-12 18:28:34,075 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:28:34,076 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 123 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:34,076 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 245 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:28:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2024-09-12 18:28:36,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 4036. [2024-09-12 18:28:36,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4036 states, 3290 states have (on average 1.2246200607902735) internal successors, (4029), 3306 states have internal predecessors, (4029), 710 states have call successors, (710), 21 states have call predecessors, (710), 20 states have return successors, (709), 708 states have call predecessors, (709), 709 states have call successors, (709) [2024-09-12 18:28:36,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5448 transitions. [2024-09-12 18:28:36,387 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5448 transitions. Word has length 264 [2024-09-12 18:28:36,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:36,387 INFO L474 AbstractCegarLoop]: Abstraction has 4036 states and 5448 transitions. [2024-09-12 18:28:36,387 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.277777777777778) internal successors, (95), 16 states have internal predecessors, (95), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-09-12 18:28:36,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:36,388 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5448 transitions. [2024-09-12 18:28:36,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-09-12 18:28:36,389 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:36,389 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:28:36,403 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-09-12 18:28:36,589 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-09-12 18:28:36,590 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:28:36,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:36,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1149411224, now seen corresponding path program 5 times [2024-09-12 18:28:36,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:36,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323137431] [2024-09-12 18:28:36,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:36,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:36,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [180013565] [2024-09-12 18:28:36,611 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:28:36,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:36,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:36,614 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:28:36,615 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 18:28:36,722 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-09-12 18:28:36,722 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:28:36,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:28:36,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:37,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 28 proven. 245 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:28:37,636 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:37,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:37,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323137431] [2024-09-12 18:28:37,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:37,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180013565] [2024-09-12 18:28:37,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180013565] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:28:37,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:28:37,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 18:28:37,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195821635] [2024-09-12 18:28:37,993 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:37,993 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:28:37,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:37,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:28:37,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:28:37,994 INFO L87 Difference]: Start difference. First operand 4036 states and 5448 transitions. Second operand has 18 states, 17 states have (on average 7.588235294117647) internal successors, (129), 18 states have internal predecessors, (129), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) [2024-09-12 18:28:47,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:47,117 INFO L93 Difference]: Finished difference Result 6610 states and 9143 transitions. [2024-09-12 18:28:47,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-12 18:28:47,117 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.588235294117647) internal successors, (129), 18 states have internal predecessors, (129), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) Word has length 266 [2024-09-12 18:28:47,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:47,139 INFO L225 Difference]: With dead ends: 6610 [2024-09-12 18:28:47,140 INFO L226 Difference]: Without dead ends: 6603 [2024-09-12 18:28:47,145 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=498, Invalid=2364, Unknown=0, NotChecked=0, Total=2862 [2024-09-12 18:28:47,146 INFO L434 NwaCegarLoop]: 229 mSDtfsCounter, 579 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 7401 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 7532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 7401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:47,146 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 813 Invalid, 7532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 7401 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-09-12 18:28:47,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6603 states. [2024-09-12 18:28:50,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6603 to 5187. [2024-09-12 18:28:50,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 4227 states have (on average 1.2346818074284363) internal successors, (5219), 4243 states have internal predecessors, (5219), 924 states have call successors, (924), 21 states have call predecessors, (924), 20 states have return successors, (923), 922 states have call predecessors, (923), 923 states have call successors, (923) [2024-09-12 18:28:50,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 7066 transitions. [2024-09-12 18:28:50,227 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 7066 transitions. Word has length 266 [2024-09-12 18:28:50,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:50,227 INFO L474 AbstractCegarLoop]: Abstraction has 5187 states and 7066 transitions. [2024-09-12 18:28:50,227 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.588235294117647) internal successors, (129), 18 states have internal predecessors, (129), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) [2024-09-12 18:28:50,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:50,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 7066 transitions. [2024-09-12 18:28:50,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-09-12 18:28:50,229 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:50,229 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2024-09-12 18:28:50,243 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 18:28:50,429 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-09-12 18:28:50,430 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:28:50,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:50,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1082920487, now seen corresponding path program 1 times [2024-09-12 18:28:50,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:50,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075726493] [2024-09-12 18:28:50,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:50,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:28:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:28:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:28:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:28:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:28:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:28:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:28:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:28:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:28:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:28:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:28:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 18:28:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 18:28:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:28:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 18:28:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 18:28:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:28:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 18:28:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 18:28:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 18:28:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:28:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:28:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:28:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 18:28:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 18:28:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 18:28:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:28:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 18:28:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:28:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1717 backedges. 64 proven. 249 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:28:50,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:50,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075726493] [2024-09-12 18:28:50,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075726493] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:28:50,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562902099] [2024-09-12 18:28:50,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:50,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:50,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:50,683 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:28:50,685 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:28:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:50,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:28:50,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:50,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1717 backedges. 584 proven. 157 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2024-09-12 18:28:50,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1717 backedges. 144 proven. 157 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2024-09-12 18:28:51,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562902099] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:28:51,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:28:51,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 14 [2024-09-12 18:28:51,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926208990] [2024-09-12 18:28:51,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:51,218 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:28:51,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:51,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:28:51,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:28:51,219 INFO L87 Difference]: Start difference. First operand 5187 states and 7066 transitions. Second operand has 14 states, 14 states have (on average 13.285714285714286) internal successors, (186), 14 states have internal predecessors, (186), 12 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) [2024-09-12 18:28:54,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:28:54,637 INFO L93 Difference]: Finished difference Result 6701 states and 9121 transitions. [2024-09-12 18:28:54,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:28:54,638 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.285714285714286) internal successors, (186), 14 states have internal predecessors, (186), 12 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) Word has length 269 [2024-09-12 18:28:54,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:28:54,650 INFO L225 Difference]: With dead ends: 6701 [2024-09-12 18:28:54,651 INFO L226 Difference]: Without dead ends: 3069 [2024-09-12 18:28:54,662 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 590 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:28:54,663 INFO L434 NwaCegarLoop]: 114 mSDtfsCounter, 324 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:28:54,663 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 808 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1488 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-09-12 18:28:54,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2024-09-12 18:28:56,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2918. [2024-09-12 18:28:56,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 2369 states have (on average 1.1937526382439847) internal successors, (2828), 2385 states have internal predecessors, (2828), 513 states have call successors, (513), 21 states have call predecessors, (513), 20 states have return successors, (512), 511 states have call predecessors, (512), 512 states have call successors, (512) [2024-09-12 18:28:56,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 3853 transitions. [2024-09-12 18:28:56,489 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 3853 transitions. Word has length 269 [2024-09-12 18:28:56,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:28:56,489 INFO L474 AbstractCegarLoop]: Abstraction has 2918 states and 3853 transitions. [2024-09-12 18:28:56,490 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.285714285714286) internal successors, (186), 14 states have internal predecessors, (186), 12 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) [2024-09-12 18:28:56,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:56,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 3853 transitions. [2024-09-12 18:28:56,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-09-12 18:28:56,492 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:28:56,492 INFO L216 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:28:56,508 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-09-12 18:28:56,696 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:56,697 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:28:56,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:28:56,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2146848852, now seen corresponding path program 7 times [2024-09-12 18:28:56,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:28:56,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958041057] [2024-09-12 18:28:56,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:28:56,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:28:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:28:56,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520002489] [2024-09-12 18:28:56,726 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:28:56,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:28:56,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:28:56,729 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:28:56,732 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:28:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:28:56,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:28:56,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:28:57,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1794 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:28:57,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:28:58,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:28:58,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958041057] [2024-09-12 18:28:58,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:28:58,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520002489] [2024-09-12 18:28:58,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520002489] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:28:58,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:28:58,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-09-12 18:28:58,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381022760] [2024-09-12 18:28:58,204 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:28:58,204 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 18:28:58,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:28:58,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 18:28:58,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:28:58,205 INFO L87 Difference]: Start difference. First operand 2918 states and 3853 transitions. Second operand has 19 states, 18 states have (on average 7.444444444444445) internal successors, (134), 19 states have internal predecessors, (134), 12 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-09-12 18:29:01,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:29:01,017 INFO L93 Difference]: Finished difference Result 2966 states and 3908 transitions. [2024-09-12 18:29:01,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:29:01,017 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.444444444444445) internal successors, (134), 19 states have internal predecessors, (134), 12 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 276 [2024-09-12 18:29:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:29:01,027 INFO L225 Difference]: With dead ends: 2966 [2024-09-12 18:29:01,027 INFO L226 Difference]: Without dead ends: 2964 [2024-09-12 18:29:01,028 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:29:01,029 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 90 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:29:01,029 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 588 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:29:01,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2024-09-12 18:29:02,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2961. [2024-09-12 18:29:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 2405 states have (on average 1.1912681912681913) internal successors, (2865), 2421 states have internal predecessors, (2865), 520 states have call successors, (520), 21 states have call predecessors, (520), 20 states have return successors, (519), 518 states have call predecessors, (519), 519 states have call successors, (519) [2024-09-12 18:29:02,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 3904 transitions. [2024-09-12 18:29:02,851 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 3904 transitions. Word has length 276 [2024-09-12 18:29:02,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:29:02,852 INFO L474 AbstractCegarLoop]: Abstraction has 2961 states and 3904 transitions. [2024-09-12 18:29:02,852 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.444444444444445) internal successors, (134), 19 states have internal predecessors, (134), 12 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-09-12 18:29:02,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:29:02,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 3904 transitions. [2024-09-12 18:29:02,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-09-12 18:29:02,854 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:29:02,854 INFO L216 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:29:02,871 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-09-12 18:29:03,054 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2024-09-12 18:29:03,055 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:29:03,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:29:03,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1537446774, now seen corresponding path program 7 times [2024-09-12 18:29:03,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:29:03,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454775338] [2024-09-12 18:29:03,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:29:03,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:29:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:29:03,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509605841] [2024-09-12 18:29:03,074 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:29:03,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:29:03,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:29:03,076 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 18:29:03,078 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 18:29:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:03,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 18:29:03,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:29:04,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:29:04,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:29:16,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:29:16,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454775338] [2024-09-12 18:29:16,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:29:16,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509605841] [2024-09-12 18:29:16,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509605841] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:29:16,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:29:16,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-09-12 18:29:16,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314159944] [2024-09-12 18:29:16,692 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:29:16,692 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 18:29:16,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:29:16,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 18:29:16,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=593, Unknown=3, NotChecked=0, Total=702 [2024-09-12 18:29:16,693 INFO L87 Difference]: Start difference. First operand 2961 states and 3904 transitions. Second operand has 19 states, 18 states have (on average 7.555555555555555) internal successors, (136), 19 states have internal predecessors, (136), 12 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-09-12 18:29:19,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:29:19,638 INFO L93 Difference]: Finished difference Result 2966 states and 3906 transitions. [2024-09-12 18:29:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 18:29:19,639 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.555555555555555) internal successors, (136), 19 states have internal predecessors, (136), 12 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 278 [2024-09-12 18:29:19,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:29:19,646 INFO L225 Difference]: With dead ends: 2966 [2024-09-12 18:29:19,647 INFO L226 Difference]: Without dead ends: 2870 [2024-09-12 18:29:19,648 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 501 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=234, Invalid=1569, Unknown=3, NotChecked=0, Total=1806 [2024-09-12 18:29:19,648 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 223 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:29:19,648 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 677 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:29:19,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2024-09-12 18:29:21,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2869. [2024-09-12 18:29:21,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2329 states have (on average 1.1966509231429798) internal successors, (2787), 2345 states have internal predecessors, (2787), 504 states have call successors, (504), 21 states have call predecessors, (504), 20 states have return successors, (503), 502 states have call predecessors, (503), 503 states have call successors, (503) [2024-09-12 18:29:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 3794 transitions. [2024-09-12 18:29:21,348 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 3794 transitions. Word has length 278 [2024-09-12 18:29:21,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:29:21,349 INFO L474 AbstractCegarLoop]: Abstraction has 2869 states and 3794 transitions. [2024-09-12 18:29:21,349 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.555555555555555) internal successors, (136), 19 states have internal predecessors, (136), 12 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-09-12 18:29:21,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:29:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 3794 transitions. [2024-09-12 18:29:21,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-09-12 18:29:21,350 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:29:21,351 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:29:21,364 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 18:29:21,551 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:29:21,551 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:29:21,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:29:21,552 INFO L85 PathProgramCache]: Analyzing trace with hash -218347036, now seen corresponding path program 6 times [2024-09-12 18:29:21,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:29:21,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012116092] [2024-09-12 18:29:21,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:29:21,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:29:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:29:21,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891185528] [2024-09-12 18:29:21,577 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:29:21,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:29:21,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:29:21,579 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 18:29:21,580 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 18:29:21,754 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-09-12 18:29:21,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:29:21,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 18:29:21,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:29:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 181 proven. 361 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2024-09-12 18:29:22,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:29:22,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:29:22,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012116092] [2024-09-12 18:29:22,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:29:22,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891185528] [2024-09-12 18:29:22,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891185528] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:29:22,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:29:22,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:29:22,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142859978] [2024-09-12 18:29:22,819 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:29:22,820 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:29:22,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:29:22,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:29:22,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:29:22,820 INFO L87 Difference]: Start difference. First operand 2869 states and 3794 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2024-09-12 18:29:26,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:29:26,463 INFO L93 Difference]: Finished difference Result 2872 states and 3796 transitions. [2024-09-12 18:29:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 18:29:26,464 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) Word has length 304 [2024-09-12 18:29:26,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:29:26,476 INFO L225 Difference]: With dead ends: 2872 [2024-09-12 18:29:26,476 INFO L226 Difference]: Without dead ends: 2868 [2024-09-12 18:29:26,478 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=165, Invalid=647, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:29:26,479 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 128 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:29:26,479 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 294 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 18:29:26,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states. [2024-09-12 18:29:28,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 2777. [2024-09-12 18:29:28,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 2255 states have (on average 1.1725055432372506) internal successors, (2644), 2268 states have internal predecessors, (2644), 489 states have call successors, (489), 21 states have call predecessors, (489), 20 states have return successors, (488), 487 states have call predecessors, (488), 488 states have call successors, (488) [2024-09-12 18:29:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 3621 transitions. [2024-09-12 18:29:28,347 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 3621 transitions. Word has length 304 [2024-09-12 18:29:28,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:29:28,348 INFO L474 AbstractCegarLoop]: Abstraction has 2777 states and 3621 transitions. [2024-09-12 18:29:28,348 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2024-09-12 18:29:28,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:29:28,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 3621 transitions. [2024-09-12 18:29:28,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-09-12 18:29:28,349 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:29:28,350 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-09-12 18:29:28,356 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-09-12 18:29:28,550 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:29:28,550 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:29:28,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:29:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash 551333979, now seen corresponding path program 2 times [2024-09-12 18:29:28,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:29:28,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613749227] [2024-09-12 18:29:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:29:28,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:29:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:29:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:29:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 18:29:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:29:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:29:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:29:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:29:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:29:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:29:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:29:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:29:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 18:29:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 18:29:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:29:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 18:29:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:29:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:29:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 18:29:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 18:29:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:29:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 18:29:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:29:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:29:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 18:29:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 18:29:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 18:29:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:29:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 18:29:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:29:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:29:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 18:29:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 18:29:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 18:29:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:29:28,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2299 backedges. 76 proven. 363 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 18:29:28,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:29:28,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613749227] [2024-09-12 18:29:28,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613749227] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:29:28,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410977080] [2024-09-12 18:29:28,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:29:28,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:29:28,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:29:28,814 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:29:28,816 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-09-12 18:29:28,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:29:28,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:29:28,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:29:28,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:29:29,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2299 backedges. 196 proven. 363 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 18:29:29,199 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:29:29,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2299 backedges. 76 proven. 363 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 18:29:29,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410977080] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:29:29,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:29:29,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 14 [2024-09-12 18:29:29,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526098106] [2024-09-12 18:29:29,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:29:29,502 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:29:29,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:29:29,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:29:29,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:29:29,503 INFO L87 Difference]: Start difference. First operand 2777 states and 3621 transitions. Second operand has 14 states, 14 states have (on average 13.214285714285714) internal successors, (185), 14 states have internal predecessors, (185), 12 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (41), 12 states have call predecessors, (41), 12 states have call successors, (41)