./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:27:09,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:27:09,415 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:27:09,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:27:09,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:27:09,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:27:09,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:27:09,452 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:27:09,452 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:27:09,452 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:27:09,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:27:09,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:27:09,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:27:09,454 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:27:09,454 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:27:09,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:27:09,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:27:09,458 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:27:09,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:27:09,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:27:09,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:27:09,460 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:27:09,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:27:09,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:27:09,461 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:27:09,461 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:27:09,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:27:09,461 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:27:09,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:27:09,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:27:09,462 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:27:09,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:27:09,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:27:09,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:27:09,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:27:09,463 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:27:09,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:27:09,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:27:09,464 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:27:09,464 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:27:09,464 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:27:09,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:27:09,466 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:27:09,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:27:09,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:27:09,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:27:09,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:27:09,785 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:27:09,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c [2024-09-12 19:27:11,261 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:27:11,436 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:27:11,436 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c [2024-09-12 19:27:11,443 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/807b36a15/d75eb517520443db848a7762ddb52485/FLAG785c4b357 [2024-09-12 19:27:11,840 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/807b36a15/d75eb517520443db848a7762ddb52485 [2024-09-12 19:27:11,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:27:11,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:27:11,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:27:11,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:27:11,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:27:11,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:27:11" (1/1) ... [2024-09-12 19:27:11,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25fa4283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:11, skipping insertion in model container [2024-09-12 19:27:11,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:27:11" (1/1) ... [2024-09-12 19:27:11,867 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:27:12,029 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c[573,586] [2024-09-12 19:27:12,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:27:12,054 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:27:12,067 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c[573,586] [2024-09-12 19:27:12,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:27:12,089 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:27:12,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12 WrapperNode [2024-09-12 19:27:12,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:27:12,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:27:12,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:27:12,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:27:12,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,109 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:27:12,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:27:12,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:27:12,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:27:12,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:27:12,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,141 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:27:12,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:27:12,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:27:12,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:27:12,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:27:12,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (1/1) ... [2024-09-12 19:27:12,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:27:12,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:12,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:27:12,206 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:27:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:27:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:27:12,245 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:27:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:27:12,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:27:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:27:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:27:12,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:27:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:27:12,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:27:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:27:12,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:27:12,303 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:27:12,305 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:27:12,522 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-09-12 19:27:12,523 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:27:12,549 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:27:12,550 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:27:12,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:27:12 BoogieIcfgContainer [2024-09-12 19:27:12,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:27:12,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:27:12,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:27:12,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:27:12,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:27:11" (1/3) ... [2024-09-12 19:27:12,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a067265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:27:12, skipping insertion in model container [2024-09-12 19:27:12,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:12" (2/3) ... [2024-09-12 19:27:12,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a067265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:27:12, skipping insertion in model container [2024-09-12 19:27:12,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:27:12" (3/3) ... [2024-09-12 19:27:12,560 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound10.c [2024-09-12 19:27:12,575 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:27:12,576 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-09-12 19:27:12,642 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:27:12,649 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;@1e55b1ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:27:12,649 INFO L337 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-09-12 19:27:12,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 56 states have internal predecessors, (62), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:27:12,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:27:12,672 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:12,673 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:12,674 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:12,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:12,680 INFO L85 PathProgramCache]: Analyzing trace with hash 221323231, now seen corresponding path program 1 times [2024-09-12 19:27:12,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:12,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25549913] [2024-09-12 19:27:12,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:12,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:12,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:12,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:12,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:12,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:12,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25549913] [2024-09-12 19:27:12,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25549913] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:12,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:12,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:27:12,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337067079] [2024-09-12 19:27:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:12,867 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:27:12,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:12,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:27:12,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:27:12,892 INFO L87 Difference]: Start difference. First operand has 67 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 56 states have internal predecessors, (62), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:12,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:12,939 INFO L93 Difference]: Finished difference Result 128 states and 145 transitions. [2024-09-12 19:27:12,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:27:12,942 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 18 [2024-09-12 19:27:12,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:12,953 INFO L225 Difference]: With dead ends: 128 [2024-09-12 19:27:12,953 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 19:27:12,956 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:27:12,959 INFO L434 NwaCegarLoop]: 68 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, 68 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:12,961 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:27:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 19:27:12,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-09-12 19:27:13,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 33 states have (on average 1.696969696969697) internal successors, (56), 54 states have internal predecessors, (56), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:27:13,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2024-09-12 19:27:13,007 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 18 [2024-09-12 19:27:13,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:13,008 INFO L474 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2024-09-12 19:27:13,008 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:13,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:13,011 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2024-09-12 19:27:13,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:27:13,013 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:13,013 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:13,013 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:27:13,013 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:13,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:13,014 INFO L85 PathProgramCache]: Analyzing trace with hash 979646126, now seen corresponding path program 1 times [2024-09-12 19:27:13,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:13,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759587102] [2024-09-12 19:27:13,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:13,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:13,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925410045] [2024-09-12 19:27:13,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:13,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:13,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:13,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:13,058 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:27:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:27:13,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:13,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:13,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:13,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759587102] [2024-09-12 19:27:13,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:13,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925410045] [2024-09-12 19:27:13,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925410045] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:13,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:13,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:27:13,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472677520] [2024-09-12 19:27:13,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:13,173 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:27:13,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:27:13,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:27:13,178 INFO L87 Difference]: Start difference. First operand 63 states and 66 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:13,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:13,385 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2024-09-12 19:27:13,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:27:13,386 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-09-12 19:27:13,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:13,389 INFO L225 Difference]: With dead ends: 98 [2024-09-12 19:27:13,390 INFO L226 Difference]: Without dead ends: 92 [2024-09-12 19:27:13,390 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:27:13,392 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 27 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:13,394 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 86 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:13,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-09-12 19:27:13,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2024-09-12 19:27:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 52 states have (on average 1.6730769230769231) internal successors, (87), 73 states have internal predecessors, (87), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:27:13,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 99 transitions. [2024-09-12 19:27:13,418 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 99 transitions. Word has length 18 [2024-09-12 19:27:13,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:13,419 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 99 transitions. [2024-09-12 19:27:13,419 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:13,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:13,420 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2024-09-12 19:27:13,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 19:27:13,421 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:13,421 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:13,438 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 19:27:13,622 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 19:27:13,623 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:13,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:13,623 INFO L85 PathProgramCache]: Analyzing trace with hash 842091152, now seen corresponding path program 1 times [2024-09-12 19:27:13,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:13,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937999738] [2024-09-12 19:27:13,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:13,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:13,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:13,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937999738] [2024-09-12 19:27:13,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937999738] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:13,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:13,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:13,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718665347] [2024-09-12 19:27:13,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:13,787 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:13,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:13,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:13,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:13,789 INFO L87 Difference]: Start difference. First operand 83 states and 99 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:14,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:14,025 INFO L93 Difference]: Finished difference Result 128 states and 162 transitions. [2024-09-12 19:27:14,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:14,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2024-09-12 19:27:14,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:14,028 INFO L225 Difference]: With dead ends: 128 [2024-09-12 19:27:14,030 INFO L226 Difference]: Without dead ends: 121 [2024-09-12 19:27:14,030 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:14,031 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 22 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:14,032 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 108 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:14,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-09-12 19:27:14,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 116. [2024-09-12 19:27:14,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 83 states have (on average 1.5783132530120483) internal successors, (131), 104 states have internal predecessors, (131), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:14,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 147 transitions. [2024-09-12 19:27:14,075 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 147 transitions. Word has length 20 [2024-09-12 19:27:14,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:14,076 INFO L474 AbstractCegarLoop]: Abstraction has 116 states and 147 transitions. [2024-09-12 19:27:14,076 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:14,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 147 transitions. [2024-09-12 19:27:14,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 19:27:14,079 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:14,079 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:14,079 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:27:14,079 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:14,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:14,079 INFO L85 PathProgramCache]: Analyzing trace with hash 335021999, now seen corresponding path program 1 times [2024-09-12 19:27:14,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:14,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468363449] [2024-09-12 19:27:14,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:14,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:14,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:14,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468363449] [2024-09-12 19:27:14,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468363449] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:14,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:14,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:14,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517977970] [2024-09-12 19:27:14,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:14,233 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:14,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:14,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:14,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:14,233 INFO L87 Difference]: Start difference. First operand 116 states and 147 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:14,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:14,562 INFO L93 Difference]: Finished difference Result 123 states and 150 transitions. [2024-09-12 19:27:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:14,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2024-09-12 19:27:14,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:14,564 INFO L225 Difference]: With dead ends: 123 [2024-09-12 19:27:14,564 INFO L226 Difference]: Without dead ends: 120 [2024-09-12 19:27:14,565 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:14,566 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 21 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:14,566 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 112 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:27:14,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-09-12 19:27:14,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 115. [2024-09-12 19:27:14,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 82 states have (on average 1.548780487804878) internal successors, (127), 103 states have internal predecessors, (127), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:14,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 143 transitions. [2024-09-12 19:27:14,591 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 143 transitions. Word has length 21 [2024-09-12 19:27:14,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:14,592 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 143 transitions. [2024-09-12 19:27:14,592 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:14,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 143 transitions. [2024-09-12 19:27:14,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 19:27:14,593 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:14,593 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:14,593 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:27:14,593 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:14,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:14,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1795747442, now seen corresponding path program 1 times [2024-09-12 19:27:14,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:14,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014001932] [2024-09-12 19:27:14,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:14,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:14,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:14,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014001932] [2024-09-12 19:27:14,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014001932] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:14,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044543877] [2024-09-12 19:27:14,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:14,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:14,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:14,776 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:14,778 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:27:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:14,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:14,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:14,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044543877] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:14,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:14,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 19:27:14,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142770874] [2024-09-12 19:27:14,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:14,921 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:14,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:14,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:14,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:14,922 INFO L87 Difference]: Start difference. First operand 115 states and 143 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:15,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:15,064 INFO L93 Difference]: Finished difference Result 118 states and 147 transitions. [2024-09-12 19:27:15,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:15,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 22 [2024-09-12 19:27:15,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:15,066 INFO L225 Difference]: With dead ends: 118 [2024-09-12 19:27:15,066 INFO L226 Difference]: Without dead ends: 117 [2024-09-12 19:27:15,066 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:15,067 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 74 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:15,067 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 79 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:15,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-09-12 19:27:15,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-09-12 19:27:15,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 103 states have internal predecessors, (126), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:15,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2024-09-12 19:27:15,098 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 22 [2024-09-12 19:27:15,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:15,098 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2024-09-12 19:27:15,099 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:15,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:15,099 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2024-09-12 19:27:15,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 19:27:15,100 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:15,100 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] [2024-09-12 19:27:15,116 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:27:15,300 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:15,301 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:15,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:15,301 INFO L85 PathProgramCache]: Analyzing trace with hash -166404079, now seen corresponding path program 1 times [2024-09-12 19:27:15,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:15,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832004389] [2024-09-12 19:27:15,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:15,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:15,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [669555863] [2024-09-12 19:27:15,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:15,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:15,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:15,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:15,318 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:27:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:15,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:15,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:15,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:15,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:15,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832004389] [2024-09-12 19:27:15,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:15,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669555863] [2024-09-12 19:27:15,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669555863] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:15,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:15,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:15,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932528635] [2024-09-12 19:27:15,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:15,436 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:15,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:15,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:15,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:15,437 INFO L87 Difference]: Start difference. First operand 115 states and 142 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 19:27:15,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:15,581 INFO L93 Difference]: Finished difference Result 116 states and 142 transitions. [2024-09-12 19:27:15,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:15,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 23 [2024-09-12 19:27:15,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:15,583 INFO L225 Difference]: With dead ends: 116 [2024-09-12 19:27:15,584 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 19:27:15,584 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 19:27:15,585 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 67 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:15,588 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 84 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:15,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 19:27:15,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-09-12 19:27:15,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 82 states have (on average 1.524390243902439) internal successors, (125), 103 states have internal predecessors, (125), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:15,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2024-09-12 19:27:15,619 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 23 [2024-09-12 19:27:15,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:15,620 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2024-09-12 19:27:15,620 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:15,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:15,620 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2024-09-12 19:27:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:27:15,621 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:15,621 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] [2024-09-12 19:27:15,638 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 19:27:15,822 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:27:15,822 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:15,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:15,823 INFO L85 PathProgramCache]: Analyzing trace with hash 567451521, now seen corresponding path program 1 times [2024-09-12 19:27:15,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:15,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779748914] [2024-09-12 19:27:15,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:15,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:15,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663966973] [2024-09-12 19:27:15,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:15,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:15,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:15,846 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:15,848 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:27:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:15,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:27:15,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:15,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:15,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:15,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779748914] [2024-09-12 19:27:15,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:15,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663966973] [2024-09-12 19:27:15,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663966973] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:15,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:15,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:27:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617962949] [2024-09-12 19:27:15,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:15,983 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:27:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:15,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:27:15,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:27:15,984 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:16,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:16,126 INFO L93 Difference]: Finished difference Result 121 states and 146 transitions. [2024-09-12 19:27:16,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:27:16,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-09-12 19:27:16,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:16,128 INFO L225 Difference]: With dead ends: 121 [2024-09-12 19:27:16,128 INFO L226 Difference]: Without dead ends: 119 [2024-09-12 19:27:16,129 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 19:27:16,130 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 8 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:16,133 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 159 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:16,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-09-12 19:27:16,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-09-12 19:27:16,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 85 states have (on average 1.5058823529411764) internal successors, (128), 106 states have internal predecessors, (128), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:16,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 144 transitions. [2024-09-12 19:27:16,163 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 144 transitions. Word has length 27 [2024-09-12 19:27:16,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:16,163 INFO L474 AbstractCegarLoop]: Abstraction has 119 states and 144 transitions. [2024-09-12 19:27:16,164 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:16,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:16,164 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 144 transitions. [2024-09-12 19:27:16,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:27:16,166 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:16,166 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:16,183 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:27:16,366 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:16,367 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:16,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:16,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2007172809, now seen corresponding path program 1 times [2024-09-12 19:27:16,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:16,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60150599] [2024-09-12 19:27:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:16,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:16,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:16,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:16,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:16,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:16,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:16,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60150599] [2024-09-12 19:27:16,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60150599] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:16,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867692003] [2024-09-12 19:27:16,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:16,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:16,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:16,528 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:16,530 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:27:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:16,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:16,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:16,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:16,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:16,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867692003] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:16,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:16,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-09-12 19:27:16,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301327596] [2024-09-12 19:27:16,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:16,716 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:27:16,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:16,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:27:16,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:16,717 INFO L87 Difference]: Start difference. First operand 119 states and 144 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:16,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:16,836 INFO L93 Difference]: Finished difference Result 172 states and 212 transitions. [2024-09-12 19:27:16,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:27:16,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 35 [2024-09-12 19:27:16,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:16,838 INFO L225 Difference]: With dead ends: 172 [2024-09-12 19:27:16,838 INFO L226 Difference]: Without dead ends: 170 [2024-09-12 19:27:16,838 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:16,839 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 220 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:16,839 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 200 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:16,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-09-12 19:27:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 160. [2024-09-12 19:27:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 124 states have (on average 1.5080645161290323) internal successors, (187), 145 states have internal predecessors, (187), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:16,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 207 transitions. [2024-09-12 19:27:16,884 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 207 transitions. Word has length 35 [2024-09-12 19:27:16,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:16,885 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 207 transitions. [2024-09-12 19:27:16,885 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:16,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 207 transitions. [2024-09-12 19:27:16,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 19:27:16,887 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:16,887 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:16,904 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:27:17,088 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 19:27:17,088 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:17,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:17,088 INFO L85 PathProgramCache]: Analyzing trace with hash -428584877, now seen corresponding path program 1 times [2024-09-12 19:27:17,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:17,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187756198] [2024-09-12 19:27:17,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:17,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,292 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:17,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:17,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187756198] [2024-09-12 19:27:17,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187756198] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:17,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415573275] [2024-09-12 19:27:17,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:17,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:17,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:17,295 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:17,301 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:27:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:17,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:17,495 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:17,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:17,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415573275] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:17,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:17,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-09-12 19:27:17,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455880563] [2024-09-12 19:27:17,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:17,497 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:17,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:17,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:17,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:17,498 INFO L87 Difference]: Start difference. First operand 160 states and 207 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:17,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:17,699 INFO L93 Difference]: Finished difference Result 171 states and 217 transitions. [2024-09-12 19:27:17,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:27:17,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-09-12 19:27:17,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:17,701 INFO L225 Difference]: With dead ends: 171 [2024-09-12 19:27:17,701 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 19:27:17,702 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:27:17,702 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 8 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:17,703 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 172 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:17,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 19:27:17,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-09-12 19:27:17,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 124 states have (on average 1.5) internal successors, (186), 145 states have internal predecessors, (186), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:17,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 206 transitions. [2024-09-12 19:27:17,724 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 206 transitions. Word has length 37 [2024-09-12 19:27:17,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:17,725 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 206 transitions. [2024-09-12 19:27:17,725 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:17,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:17,725 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 206 transitions. [2024-09-12 19:27:17,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 19:27:17,726 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:17,726 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:17,744 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:27:17,930 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:17,931 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:17,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:17,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2092815023, now seen corresponding path program 1 times [2024-09-12 19:27:17,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:17,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272923779] [2024-09-12 19:27:17,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:17,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:18,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:18,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:18,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:18,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272923779] [2024-09-12 19:27:18,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272923779] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:18,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:18,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:18,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763958647] [2024-09-12 19:27:18,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:18,005 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:18,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:18,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:18,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:18,006 INFO L87 Difference]: Start difference. First operand 160 states and 206 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:18,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:18,059 INFO L93 Difference]: Finished difference Result 160 states and 206 transitions. [2024-09-12 19:27:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:18,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2024-09-12 19:27:18,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:18,062 INFO L225 Difference]: With dead ends: 160 [2024-09-12 19:27:18,063 INFO L226 Difference]: Without dead ends: 158 [2024-09-12 19:27:18,063 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:27:18,064 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 58 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:18,064 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 90 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:27:18,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-09-12 19:27:18,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-09-12 19:27:18,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 124 states have (on average 1.4596774193548387) internal successors, (181), 143 states have internal predecessors, (181), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:18,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 201 transitions. [2024-09-12 19:27:18,086 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 201 transitions. Word has length 36 [2024-09-12 19:27:18,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:18,086 INFO L474 AbstractCegarLoop]: Abstraction has 158 states and 201 transitions. [2024-09-12 19:27:18,086 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:18,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:18,087 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 201 transitions. [2024-09-12 19:27:18,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 19:27:18,087 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:18,088 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:18,088 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 19:27:18,088 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:18,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:18,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1150544337, now seen corresponding path program 1 times [2024-09-12 19:27:18,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:18,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416282781] [2024-09-12 19:27:18,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:18,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:18,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639314304] [2024-09-12 19:27:18,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:18,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:18,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:18,102 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:18,103 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:27:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:18,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:18,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:18,255 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:18,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:18,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:18,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416282781] [2024-09-12 19:27:18,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:18,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639314304] [2024-09-12 19:27:18,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639314304] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:18,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:18,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:27:18,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055654005] [2024-09-12 19:27:18,434 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:18,435 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:18,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:18,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:18,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:18,435 INFO L87 Difference]: Start difference. First operand 158 states and 201 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:18,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:18,560 INFO L93 Difference]: Finished difference Result 166 states and 206 transitions. [2024-09-12 19:27:18,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:27:18,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-09-12 19:27:18,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:18,562 INFO L225 Difference]: With dead ends: 166 [2024-09-12 19:27:18,563 INFO L226 Difference]: Without dead ends: 159 [2024-09-12 19:27:18,563 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:18,564 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 78 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:18,564 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 60 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:18,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-09-12 19:27:18,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 154. [2024-09-12 19:27:18,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 125 states have (on average 1.352) internal successors, (169), 139 states have internal predecessors, (169), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:18,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 189 transitions. [2024-09-12 19:27:18,589 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 189 transitions. Word has length 38 [2024-09-12 19:27:18,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:18,590 INFO L474 AbstractCegarLoop]: Abstraction has 154 states and 189 transitions. [2024-09-12 19:27:18,590 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:18,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:18,591 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 189 transitions. [2024-09-12 19:27:18,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:27:18,593 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:18,593 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:18,610 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:27:18,794 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:18,794 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:18,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1307136138, now seen corresponding path program 1 times [2024-09-12 19:27:18,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:18,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541534325] [2024-09-12 19:27:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:18,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:18,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151815310] [2024-09-12 19:27:18,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:18,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:18,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:18,805 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:18,807 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:27:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:18,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:18,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:18,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:19,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541534325] [2024-09-12 19:27:19,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151815310] [2024-09-12 19:27:19,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151815310] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:19,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:19,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:27:19,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099898277] [2024-09-12 19:27:19,355 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:19,355 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:19,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:19,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:19,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:19,356 INFO L87 Difference]: Start difference. First operand 154 states and 189 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:19,600 INFO L93 Difference]: Finished difference Result 208 states and 256 transitions. [2024-09-12 19:27:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:27:19,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-09-12 19:27:19,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:19,602 INFO L225 Difference]: With dead ends: 208 [2024-09-12 19:27:19,602 INFO L226 Difference]: Without dead ends: 205 [2024-09-12 19:27:19,603 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:19,603 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 90 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:19,604 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 121 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:19,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-09-12 19:27:19,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 191. [2024-09-12 19:27:19,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 160 states have (on average 1.34375) internal successors, (215), 174 states have internal predecessors, (215), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:19,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 239 transitions. [2024-09-12 19:27:19,633 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 239 transitions. Word has length 39 [2024-09-12 19:27:19,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:19,633 INFO L474 AbstractCegarLoop]: Abstraction has 191 states and 239 transitions. [2024-09-12 19:27:19,633 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:19,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 239 transitions. [2024-09-12 19:27:19,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 19:27:19,634 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:19,635 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:19,652 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:19,835 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:19,836 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:19,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:19,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1800702333, now seen corresponding path program 1 times [2024-09-12 19:27:19,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:19,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904543388] [2024-09-12 19:27:19,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:19,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:19,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:19,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:19,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:19,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:19,895 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:19,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:19,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904543388] [2024-09-12 19:27:19,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904543388] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:19,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394389430] [2024-09-12 19:27:19,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:19,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:19,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:19,898 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:19,899 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:27:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:19,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:27:19,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:20,025 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:20,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:20,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394389430] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:20,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:20,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-09-12 19:27:20,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916631611] [2024-09-12 19:27:20,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:20,027 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:27:20,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:20,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:27:20,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:27:20,028 INFO L87 Difference]: Start difference. First operand 191 states and 239 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:20,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:20,210 INFO L93 Difference]: Finished difference Result 192 states and 240 transitions. [2024-09-12 19:27:20,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:27:20,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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 40 [2024-09-12 19:27:20,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:20,212 INFO L225 Difference]: With dead ends: 192 [2024-09-12 19:27:20,212 INFO L226 Difference]: Without dead ends: 190 [2024-09-12 19:27:20,213 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:27:20,214 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 32 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:20,215 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 81 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:20,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-09-12 19:27:20,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2024-09-12 19:27:20,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 157 states have (on average 1.3312101910828025) internal successors, (209), 169 states have internal predecessors, (209), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 233 transitions. [2024-09-12 19:27:20,252 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 233 transitions. Word has length 40 [2024-09-12 19:27:20,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:20,253 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 233 transitions. [2024-09-12 19:27:20,253 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:20,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:20,253 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 233 transitions. [2024-09-12 19:27:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 19:27:20,254 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:20,254 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:20,273 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:27:20,454 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:27:20,455 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:20,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:20,455 INFO L85 PathProgramCache]: Analyzing trace with hash -12802462, now seen corresponding path program 1 times [2024-09-12 19:27:20,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:20,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748907493] [2024-09-12 19:27:20,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:20,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:20,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:20,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:20,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:20,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:20,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:20,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748907493] [2024-09-12 19:27:20,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748907493] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:20,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150404890] [2024-09-12 19:27:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:20,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:20,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:20,606 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:20,607 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:27:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:20,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:27:20,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:20,718 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:20,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:28,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150404890] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:28,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:28,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2024-09-12 19:27:28,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354161554] [2024-09-12 19:27:28,889 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:28,889 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:27:28,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:28,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:27:28,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=140, Unknown=2, NotChecked=0, Total=182 [2024-09-12 19:27:28,891 INFO L87 Difference]: Start difference. First operand 186 states and 233 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 19:27:29,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:29,368 INFO L93 Difference]: Finished difference Result 199 states and 239 transitions. [2024-09-12 19:27:29,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:27:29,369 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 41 [2024-09-12 19:27:29,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:29,371 INFO L225 Difference]: With dead ends: 199 [2024-09-12 19:27:29,371 INFO L226 Difference]: Without dead ends: 192 [2024-09-12 19:27:29,371 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=180, Invalid=468, Unknown=2, NotChecked=0, Total=650 [2024-09-12 19:27:29,372 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 103 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:29,372 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 162 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:29,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-09-12 19:27:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 177. [2024-09-12 19:27:29,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 160 states have internal predecessors, (192), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:29,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 216 transitions. [2024-09-12 19:27:29,411 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 216 transitions. Word has length 41 [2024-09-12 19:27:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:29,412 INFO L474 AbstractCegarLoop]: Abstraction has 177 states and 216 transitions. [2024-09-12 19:27:29,412 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 19:27:29,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 216 transitions. [2024-09-12 19:27:29,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 19:27:29,414 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:29,414 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:29,431 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 19:27:29,618 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 19:27:29,619 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:29,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:29,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1575725035, now seen corresponding path program 1 times [2024-09-12 19:27:29,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:29,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120840996] [2024-09-12 19:27:29,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:29,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:29,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:29,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:29,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:29,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:29,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:29,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120840996] [2024-09-12 19:27:29,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120840996] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:29,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747139263] [2024-09-12 19:27:29,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:29,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:29,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:29,778 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:29,780 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:27:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:29,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:29,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:29,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:30,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747139263] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:30,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:30,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-09-12 19:27:30,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487318398] [2024-09-12 19:27:30,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:30,157 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:30,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:30,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:30,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:27:30,158 INFO L87 Difference]: Start difference. First operand 177 states and 216 transitions. Second operand has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:30,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:30,720 INFO L93 Difference]: Finished difference Result 178 states and 216 transitions. [2024-09-12 19:27:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:27:30,721 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2024-09-12 19:27:30,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:30,723 INFO L225 Difference]: With dead ends: 178 [2024-09-12 19:27:30,724 INFO L226 Difference]: Without dead ends: 175 [2024-09-12 19:27:30,724 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 79 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-09-12 19:27:30,726 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 139 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:30,727 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 191 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:27:30,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-09-12 19:27:30,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 152. [2024-09-12 19:27:30,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 128 states have (on average 1.234375) internal successors, (158), 136 states have internal predecessors, (158), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:27:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 180 transitions. [2024-09-12 19:27:30,760 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 180 transitions. Word has length 42 [2024-09-12 19:27:30,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:30,760 INFO L474 AbstractCegarLoop]: Abstraction has 152 states and 180 transitions. [2024-09-12 19:27:30,760 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:30,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:30,760 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 180 transitions. [2024-09-12 19:27:30,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:27:30,771 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:30,771 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:30,787 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:30,975 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:27:30,976 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:30,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:30,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1602835762, now seen corresponding path program 1 times [2024-09-12 19:27:30,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:30,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796289786] [2024-09-12 19:27:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:30,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:30,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823313483] [2024-09-12 19:27:30,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:30,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:30,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:30,987 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:30,988 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:27:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:31,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 19:27:31,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:31,192 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:31,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:31,316 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:31,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:31,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796289786] [2024-09-12 19:27:31,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:31,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823313483] [2024-09-12 19:27:31,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823313483] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:31,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:31,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-09-12 19:27:31,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095119952] [2024-09-12 19:27:31,317 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:31,318 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:27:31,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:31,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:27:31,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:31,319 INFO L87 Difference]: Start difference. First operand 152 states and 180 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:27:32,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:32,074 INFO L93 Difference]: Finished difference Result 241 states and 288 transitions. [2024-09-12 19:27:32,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:27:32,075 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 43 [2024-09-12 19:27:32,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:32,076 INFO L225 Difference]: With dead ends: 241 [2024-09-12 19:27:32,076 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 19:27:32,077 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:27:32,077 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 78 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:32,077 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 159 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:27:32,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 19:27:32,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-09-12 19:27:32,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 143 states have (on average 1.1888111888111887) internal successors, (170), 150 states have internal predecessors, (170), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:32,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 194 transitions. [2024-09-12 19:27:32,115 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 194 transitions. Word has length 43 [2024-09-12 19:27:32,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:32,116 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 194 transitions. [2024-09-12 19:27:32,116 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:27:32,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:32,116 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 194 transitions. [2024-09-12 19:27:32,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:27:32,117 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:32,117 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:32,133 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:32,321 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:27:32,322 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:32,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:32,322 INFO L85 PathProgramCache]: Analyzing trace with hash -593050690, now seen corresponding path program 1 times [2024-09-12 19:27:32,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:32,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147266272] [2024-09-12 19:27:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:32,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:32,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312542134] [2024-09-12 19:27:32,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:32,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:32,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:32,338 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:32,339 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:27:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:32,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 19:27:32,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:32,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:32,675 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:32,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:32,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147266272] [2024-09-12 19:27:32,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:32,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312542134] [2024-09-12 19:27:32,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312542134] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:32,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:32,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2024-09-12 19:27:32,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897488743] [2024-09-12 19:27:32,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:32,677 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:27:32,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:32,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:27:32,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:27:32,678 INFO L87 Difference]: Start difference. First operand 167 states and 194 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:27:32,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:32,938 INFO L93 Difference]: Finished difference Result 173 states and 199 transitions. [2024-09-12 19:27:32,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:27:32,938 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2024-09-12 19:27:32,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:32,939 INFO L225 Difference]: With dead ends: 173 [2024-09-12 19:27:32,940 INFO L226 Difference]: Without dead ends: 169 [2024-09-12 19:27:32,940 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:27:32,940 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 24 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:32,940 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 159 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:32,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-09-12 19:27:32,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-09-12 19:27:32,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 145 states have (on average 1.1793103448275861) internal successors, (171), 151 states have internal predecessors, (171), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:32,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 195 transitions. [2024-09-12 19:27:32,974 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 195 transitions. Word has length 47 [2024-09-12 19:27:32,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:32,974 INFO L474 AbstractCegarLoop]: Abstraction has 169 states and 195 transitions. [2024-09-12 19:27:32,974 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:27:32,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:32,975 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 195 transitions. [2024-09-12 19:27:32,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 19:27:32,975 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:32,976 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:32,992 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 19:27:33,179 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:27:33,180 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:33,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash -873853872, now seen corresponding path program 1 times [2024-09-12 19:27:33,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:33,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484874285] [2024-09-12 19:27:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:33,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,364 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:27:33,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:33,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484874285] [2024-09-12 19:27:33,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484874285] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:33,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752927913] [2024-09-12 19:27:33,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:33,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:33,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:33,367 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:33,368 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:27:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:27:33,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 19:27:33,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:33,715 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:27:33,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752927913] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:33,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:33,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 17 [2024-09-12 19:27:33,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508354448] [2024-09-12 19:27:33,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:33,716 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:33,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:33,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:33,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:27:33,717 INFO L87 Difference]: Start difference. First operand 169 states and 195 transitions. Second operand has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 19:27:34,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:34,075 INFO L93 Difference]: Finished difference Result 174 states and 200 transitions. [2024-09-12 19:27:34,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:27:34,076 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2024-09-12 19:27:34,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:34,077 INFO L225 Difference]: With dead ends: 174 [2024-09-12 19:27:34,077 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 19:27:34,077 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:27:34,078 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 43 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:34,078 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 214 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:27:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 19:27:34,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-09-12 19:27:34,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 138 states have (on average 1.1376811594202898) internal successors, (157), 143 states have internal predecessors, (157), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 180 transitions. [2024-09-12 19:27:34,123 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 180 transitions. Word has length 57 [2024-09-12 19:27:34,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:34,123 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 180 transitions. [2024-09-12 19:27:34,124 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 19:27:34,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:34,124 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 180 transitions. [2024-09-12 19:27:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 19:27:34,124 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:34,125 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:27:34,141 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 19:27:34,325 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:27:34,325 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:34,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:34,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1394605753, now seen corresponding path program 2 times [2024-09-12 19:27:34,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:34,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806508149] [2024-09-12 19:27:34,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:34,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:34,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [484918961] [2024-09-12 19:27:34,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:34,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:34,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:34,342 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:34,344 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:27:34,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:34,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:34,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:34,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:27:34,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:34,792 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:27:34,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:34,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806508149] [2024-09-12 19:27:34,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:34,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484918961] [2024-09-12 19:27:34,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484918961] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:34,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:34,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 19:27:34,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783871152] [2024-09-12 19:27:34,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:34,794 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:27:34,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:34,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:27:34,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:34,796 INFO L87 Difference]: Start difference. First operand 160 states and 180 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:35,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:35,628 INFO L93 Difference]: Finished difference Result 319 states and 372 transitions. [2024-09-12 19:27:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:27:35,628 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 59 [2024-09-12 19:27:35,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:35,631 INFO L225 Difference]: With dead ends: 319 [2024-09-12 19:27:35,631 INFO L226 Difference]: Without dead ends: 308 [2024-09-12 19:27:35,632 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:27:35,632 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 172 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:35,632 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 224 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:27:35,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-09-12 19:27:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 302. [2024-09-12 19:27:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 273 states have (on average 1.1428571428571428) internal successors, (312), 277 states have internal predecessors, (312), 20 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:27:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 351 transitions. [2024-09-12 19:27:35,734 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 351 transitions. Word has length 59 [2024-09-12 19:27:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:35,735 INFO L474 AbstractCegarLoop]: Abstraction has 302 states and 351 transitions. [2024-09-12 19:27:35,735 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:35,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 351 transitions. [2024-09-12 19:27:35,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 19:27:35,736 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:35,736 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:27:35,752 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:35,936 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:35,937 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:35,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:35,937 INFO L85 PathProgramCache]: Analyzing trace with hash -928787541, now seen corresponding path program 1 times [2024-09-12 19:27:35,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:35,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573687691] [2024-09-12 19:27:35,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:35,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:36,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:36,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:36,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:36,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:36,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:36,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:36,013 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:27:36,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:36,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573687691] [2024-09-12 19:27:36,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573687691] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:36,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048596318] [2024-09-12 19:27:36,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:36,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:36,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:36,016 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:36,017 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:27:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:36,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:27:36,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:36,117 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:27:36,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:27:36,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048596318] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:36,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:36,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-09-12 19:27:36,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543715632] [2024-09-12 19:27:36,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:36,207 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:27:36,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:36,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:27:36,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:36,208 INFO L87 Difference]: Start difference. First operand 302 states and 351 transitions. Second operand has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:27:36,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:36,571 INFO L93 Difference]: Finished difference Result 826 states and 1026 transitions. [2024-09-12 19:27:36,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:27:36,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 71 [2024-09-12 19:27:36,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:36,576 INFO L225 Difference]: With dead ends: 826 [2024-09-12 19:27:36,576 INFO L226 Difference]: Without dead ends: 824 [2024-09-12 19:27:36,577 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:36,577 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 17 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:36,578 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 99 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:36,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-09-12 19:27:36,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2024-09-12 19:27:36,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 762 states have (on average 1.1167979002624673) internal successors, (851), 765 states have internal predecessors, (851), 54 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 19:27:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 958 transitions. [2024-09-12 19:27:36,849 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 958 transitions. Word has length 71 [2024-09-12 19:27:36,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:36,849 INFO L474 AbstractCegarLoop]: Abstraction has 824 states and 958 transitions. [2024-09-12 19:27:36,849 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:27:36,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 958 transitions. [2024-09-12 19:27:36,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:27:36,851 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:36,851 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:27:36,869 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:37,057 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:37,058 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:37,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:37,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2109403356, now seen corresponding path program 1 times [2024-09-12 19:27:37,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:37,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873695207] [2024-09-12 19:27:37,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:37,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:27:37,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:37,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873695207] [2024-09-12 19:27:37,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873695207] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:37,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501366042] [2024-09-12 19:27:37,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:37,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:37,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:37,178 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:37,179 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:27:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:37,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:37,311 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:27:37,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 15 proven. 38 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:27:37,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501366042] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:37,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:37,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-09-12 19:27:37,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202564936] [2024-09-12 19:27:37,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:37,392 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:37,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:37,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:37,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:27:37,393 INFO L87 Difference]: Start difference. First operand 824 states and 958 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:37,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:37,621 INFO L93 Difference]: Finished difference Result 1008 states and 1168 transitions. [2024-09-12 19:27:37,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:27:37,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 81 [2024-09-12 19:27:37,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:37,625 INFO L225 Difference]: With dead ends: 1008 [2024-09-12 19:27:37,625 INFO L226 Difference]: Without dead ends: 565 [2024-09-12 19:27:37,629 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:27:37,630 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:37,630 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 108 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:37,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-09-12 19:27:37,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 564. [2024-09-12 19:27:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 519 states have (on average 1.1001926782273603) internal successors, (571), 522 states have internal predecessors, (571), 37 states have call successors, (37), 5 states have call predecessors, (37), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 19:27:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 644 transitions. [2024-09-12 19:27:37,807 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 644 transitions. Word has length 81 [2024-09-12 19:27:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:37,807 INFO L474 AbstractCegarLoop]: Abstraction has 564 states and 644 transitions. [2024-09-12 19:27:37,807 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:37,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 644 transitions. [2024-09-12 19:27:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:27:37,808 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:37,809 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:27:37,825 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:38,009 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:38,009 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:38,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:38,010 INFO L85 PathProgramCache]: Analyzing trace with hash 18271122, now seen corresponding path program 2 times [2024-09-12 19:27:38,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:38,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274565716] [2024-09-12 19:27:38,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:38,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,147 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:27:38,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:38,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274565716] [2024-09-12 19:27:38,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274565716] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:38,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065290102] [2024-09-12 19:27:38,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:38,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:38,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:38,150 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:38,152 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:27:38,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:38,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:38,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:27:38,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:38,284 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:27:38,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:38,457 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:27:38,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065290102] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:38,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:38,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-09-12 19:27:38,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866861071] [2024-09-12 19:27:38,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:38,458 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:27:38,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:38,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:27:38,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:27:38,460 INFO L87 Difference]: Start difference. First operand 564 states and 644 transitions. Second operand has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:27:39,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:39,080 INFO L93 Difference]: Finished difference Result 846 states and 958 transitions. [2024-09-12 19:27:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:27:39,081 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 81 [2024-09-12 19:27:39,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:39,085 INFO L225 Difference]: With dead ends: 846 [2024-09-12 19:27:39,085 INFO L226 Difference]: Without dead ends: 845 [2024-09-12 19:27:39,085 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:27:39,086 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 114 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:39,086 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 167 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:39,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-09-12 19:27:39,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 760. [2024-09-12 19:27:39,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 706 states have (on average 1.0821529745042493) internal successors, (764), 709 states have internal predecessors, (764), 46 states have call successors, (46), 5 states have call predecessors, (46), 4 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 19:27:39,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 855 transitions. [2024-09-12 19:27:39,369 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 855 transitions. Word has length 81 [2024-09-12 19:27:39,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:39,369 INFO L474 AbstractCegarLoop]: Abstraction has 760 states and 855 transitions. [2024-09-12 19:27:39,370 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:27:39,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:39,370 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 855 transitions. [2024-09-12 19:27:39,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 19:27:39,371 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:39,371 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:39,389 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 19:27:39,571 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:27:39,572 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:39,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:39,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1331165206, now seen corresponding path program 1 times [2024-09-12 19:27:39,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:39,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97846922] [2024-09-12 19:27:39,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:39,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:39,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:39,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:39,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:39,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:39,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:39,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:39,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:27:39,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:39,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97846922] [2024-09-12 19:27:39,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97846922] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:39,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298785788] [2024-09-12 19:27:39,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:39,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:39,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:39,663 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:39,665 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:27:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:39,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:27:39,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:39,785 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:27:39,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:39,899 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:27:39,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298785788] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:39,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:39,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 19:27:39,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527429344] [2024-09-12 19:27:39,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:39,901 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:27:39,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:39,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:27:39,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:39,901 INFO L87 Difference]: Start difference. First operand 760 states and 855 transitions. Second operand has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:40,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:40,439 INFO L93 Difference]: Finished difference Result 1536 states and 1772 transitions. [2024-09-12 19:27:40,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:27:40,440 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 94 [2024-09-12 19:27:40,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:40,447 INFO L225 Difference]: With dead ends: 1536 [2024-09-12 19:27:40,447 INFO L226 Difference]: Without dead ends: 1535 [2024-09-12 19:27:40,447 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:40,448 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 86 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:40,448 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 192 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:40,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-09-12 19:27:40,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1527. [2024-09-12 19:27:40,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1425 states have (on average 1.1024561403508772) internal successors, (1571), 1428 states have internal predecessors, (1571), 94 states have call successors, (94), 5 states have call predecessors, (94), 4 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 19:27:40,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1758 transitions. [2024-09-12 19:27:40,956 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1758 transitions. Word has length 94 [2024-09-12 19:27:40,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:40,956 INFO L474 AbstractCegarLoop]: Abstraction has 1527 states and 1758 transitions. [2024-09-12 19:27:40,957 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:40,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:40,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1758 transitions. [2024-09-12 19:27:40,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:27:40,958 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:40,958 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:40,975 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 19:27:41,158 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:27:41,159 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:41,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:41,159 INFO L85 PathProgramCache]: Analyzing trace with hash -598918537, now seen corresponding path program 1 times [2024-09-12 19:27:41,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:41,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151046137] [2024-09-12 19:27:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:41,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:41,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:41,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:41,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:41,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:41,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:41,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:41,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 65 proven. 24 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:27:41,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:41,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151046137] [2024-09-12 19:27:41,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151046137] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:41,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669785791] [2024-09-12 19:27:41,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:41,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:41,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:41,258 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:41,260 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:27:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:41,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:27:41,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:41,385 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 77 proven. 24 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-09-12 19:27:41,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 65 proven. 24 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:27:41,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669785791] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:41,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:41,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-09-12 19:27:41,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763079210] [2024-09-12 19:27:41,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:41,477 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:27:41,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:41,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:27:41,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:41,478 INFO L87 Difference]: Start difference. First operand 1527 states and 1758 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-09-12 19:27:42,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:42,044 INFO L93 Difference]: Finished difference Result 1594 states and 1828 transitions. [2024-09-12 19:27:42,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:27:42,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 99 [2024-09-12 19:27:42,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:42,051 INFO L225 Difference]: With dead ends: 1594 [2024-09-12 19:27:42,051 INFO L226 Difference]: Without dead ends: 1467 [2024-09-12 19:27:42,051 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 207 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:42,052 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 36 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:42,052 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 175 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:42,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2024-09-12 19:27:42,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1465. [2024-09-12 19:27:42,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1366 states have (on average 1.0937042459736457) internal successors, (1494), 1369 states have internal predecessors, (1494), 91 states have call successors, (91), 5 states have call predecessors, (91), 4 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 19:27:42,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1675 transitions. [2024-09-12 19:27:42,506 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1675 transitions. Word has length 99 [2024-09-12 19:27:42,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:42,506 INFO L474 AbstractCegarLoop]: Abstraction has 1465 states and 1675 transitions. [2024-09-12 19:27:42,507 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-09-12 19:27:42,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:42,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1675 transitions. [2024-09-12 19:27:42,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 19:27:42,510 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:42,510 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:42,527 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:42,711 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:27:42,711 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:42,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:42,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1752149216, now seen corresponding path program 2 times [2024-09-12 19:27:42,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:42,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586652139] [2024-09-12 19:27:42,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:42,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:42,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:42,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:42,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:42,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:42,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:42,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:42,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:42,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 19:27:42,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:42,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586652139] [2024-09-12 19:27:42,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586652139] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:42,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276359069] [2024-09-12 19:27:42,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:42,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:42,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:42,860 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:42,862 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:27:42,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:42,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:42,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:42,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 19:27:43,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:43,181 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 19:27:43,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276359069] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:43,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:43,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-09-12 19:27:43,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498139403] [2024-09-12 19:27:43,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:43,182 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:27:43,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:43,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:27:43,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:27:43,183 INFO L87 Difference]: Start difference. First operand 1465 states and 1675 transitions. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:43,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:43,925 INFO L93 Difference]: Finished difference Result 3010 states and 3490 transitions. [2024-09-12 19:27:43,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:27:43,926 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 119 [2024-09-12 19:27:43,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:43,934 INFO L225 Difference]: With dead ends: 3010 [2024-09-12 19:27:43,934 INFO L226 Difference]: Without dead ends: 2198 [2024-09-12 19:27:43,936 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 246 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:27:43,937 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 27 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:43,937 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 259 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:43,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2024-09-12 19:27:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 1652. [2024-09-12 19:27:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1541 states have (on average 1.0882543802725504) internal successors, (1677), 1544 states have internal predecessors, (1677), 103 states have call successors, (103), 5 states have call predecessors, (103), 4 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-09-12 19:27:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1882 transitions. [2024-09-12 19:27:44,351 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1882 transitions. Word has length 119 [2024-09-12 19:27:44,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:44,352 INFO L474 AbstractCegarLoop]: Abstraction has 1652 states and 1882 transitions. [2024-09-12 19:27:44,352 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:44,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:44,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1882 transitions. [2024-09-12 19:27:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:27:44,354 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:44,354 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:44,370 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 19:27:44,555 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 19:27:44,555 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:44,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:44,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1411628859, now seen corresponding path program 3 times [2024-09-12 19:27:44,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:44,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056194752] [2024-09-12 19:27:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:44,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:44,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586550517] [2024-09-12 19:27:44,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:27:44,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:44,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:44,579 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:44,580 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:27:44,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:27:44,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:44,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:44,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 101 proven. 5 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-09-12 19:27:44,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:45,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:45,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056194752] [2024-09-12 19:27:45,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:45,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586550517] [2024-09-12 19:27:45,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586550517] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:45,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:45,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:27:45,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157642002] [2024-09-12 19:27:45,074 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:45,074 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:27:45,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:45,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:27:45,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:27:45,075 INFO L87 Difference]: Start difference. First operand 1652 states and 1882 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:27:45,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:45,543 INFO L93 Difference]: Finished difference Result 1654 states and 1882 transitions. [2024-09-12 19:27:45,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:27:45,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 139 [2024-09-12 19:27:45,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:45,558 INFO L225 Difference]: With dead ends: 1654 [2024-09-12 19:27:45,558 INFO L226 Difference]: Without dead ends: 1653 [2024-09-12 19:27:45,559 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:45,559 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 22 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:45,560 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 84 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:27:45,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2024-09-12 19:27:46,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1652. [2024-09-12 19:27:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1541 states have (on average 1.0863075924724206) internal successors, (1674), 1544 states have internal predecessors, (1674), 103 states have call successors, (103), 5 states have call predecessors, (103), 4 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-09-12 19:27:46,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1879 transitions. [2024-09-12 19:27:46,020 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1879 transitions. Word has length 139 [2024-09-12 19:27:46,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:46,021 INFO L474 AbstractCegarLoop]: Abstraction has 1652 states and 1879 transitions. [2024-09-12 19:27:46,021 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:27:46,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1879 transitions. [2024-09-12 19:27:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:27:46,023 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:46,023 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:46,040 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:46,224 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 19:27:46,224 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:46,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:46,224 INFO L85 PathProgramCache]: Analyzing trace with hash 471485149, now seen corresponding path program 3 times [2024-09-12 19:27:46,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:46,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502090512] [2024-09-12 19:27:46,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:46,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:46,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1735378791] [2024-09-12 19:27:46,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:27:46,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:46,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:46,243 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 19:27:46,244 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 19:27:46,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-12 19:27:46,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:46,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:46,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:46,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:46,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:46,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502090512] [2024-09-12 19:27:46,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:46,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735378791] [2024-09-12 19:27:46,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735378791] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:46,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:46,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:27:46,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859293180] [2024-09-12 19:27:46,788 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:46,788 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:27:46,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:46,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:27:46,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:46,789 INFO L87 Difference]: Start difference. First operand 1652 states and 1879 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:47,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:47,394 INFO L93 Difference]: Finished difference Result 2516 states and 2883 transitions. [2024-09-12 19:27:47,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 19:27:47,394 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 139 [2024-09-12 19:27:47,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:47,400 INFO L225 Difference]: With dead ends: 2516 [2024-09-12 19:27:47,400 INFO L226 Difference]: Without dead ends: 1616 [2024-09-12 19:27:47,402 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:27:47,403 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:47,403 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 198 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:47,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-09-12 19:27:47,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1532. [2024-09-12 19:27:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1427 states have (on average 1.0861948142957254) internal successors, (1550), 1430 states have internal predecessors, (1550), 97 states have call successors, (97), 5 states have call predecessors, (97), 4 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-09-12 19:27:47,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1743 transitions. [2024-09-12 19:27:47,850 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1743 transitions. Word has length 139 [2024-09-12 19:27:47,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:47,851 INFO L474 AbstractCegarLoop]: Abstraction has 1532 states and 1743 transitions. [2024-09-12 19:27:47,851 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:47,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:47,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1743 transitions. [2024-09-12 19:27:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:27:47,853 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:47,853 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:47,868 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 19:27:48,053 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:27:48,053 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:48,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:48,054 INFO L85 PathProgramCache]: Analyzing trace with hash -363420653, now seen corresponding path program 4 times [2024-09-12 19:27:48,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:48,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056045596] [2024-09-12 19:27:48,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:48,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:48,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256675449] [2024-09-12 19:27:48,072 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:27:48,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:48,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:48,075 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 19:27:48,076 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 19:27:48,125 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:27:48,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:48,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:27:48,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 9 proven. 232 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-09-12 19:27:48,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:48,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:48,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056045596] [2024-09-12 19:27:48,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:48,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256675449] [2024-09-12 19:27:48,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256675449] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:48,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:48,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-09-12 19:27:48,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047784016] [2024-09-12 19:27:48,884 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:48,884 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:48,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:48,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:48,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:27:48,886 INFO L87 Difference]: Start difference. First operand 1532 states and 1743 transitions. Second operand has 17 states, 16 states have (on average 6.5625) internal successors, (105), 17 states have internal predecessors, (105), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:27:49,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:49,838 INFO L93 Difference]: Finished difference Result 1647 states and 1875 transitions. [2024-09-12 19:27:49,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:27:49,839 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.5625) internal successors, (105), 17 states have internal predecessors, (105), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 139 [2024-09-12 19:27:49,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:49,844 INFO L225 Difference]: With dead ends: 1647 [2024-09-12 19:27:49,844 INFO L226 Difference]: Without dead ends: 1646 [2024-09-12 19:27:49,845 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:27:49,845 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 26 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:49,846 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 447 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:27:49,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-09-12 19:27:50,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1539. [2024-09-12 19:27:50,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1434 states have (on average 1.0857740585774058) internal successors, (1557), 1437 states have internal predecessors, (1557), 97 states have call successors, (97), 5 states have call predecessors, (97), 4 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-09-12 19:27:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1750 transitions. [2024-09-12 19:27:50,344 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1750 transitions. Word has length 139 [2024-09-12 19:27:50,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:50,345 INFO L474 AbstractCegarLoop]: Abstraction has 1539 states and 1750 transitions. [2024-09-12 19:27:50,345 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.5625) internal successors, (105), 17 states have internal predecessors, (105), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:27:50,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:50,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1750 transitions. [2024-09-12 19:27:50,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 19:27:50,347 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:50,347 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:50,360 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 19:27:50,547 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:27:50,548 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:50,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:50,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1404324233, now seen corresponding path program 2 times [2024-09-12 19:27:50,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:50,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105653935] [2024-09-12 19:27:50,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:50,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:27:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:27:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:50,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:50,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105653935] [2024-09-12 19:27:50,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105653935] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:50,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285428037] [2024-09-12 19:27:50,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:50,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:50,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:50,705 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 19:27:50,707 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 19:27:50,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:50,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:50,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:27:50,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:50,887 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:50,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:51,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285428037] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:51,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:51,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-09-12 19:27:51,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156578984] [2024-09-12 19:27:51,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:51,095 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:51,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:51,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:51,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:27:51,096 INFO L87 Difference]: Start difference. First operand 1539 states and 1750 transitions. Second operand has 17 states, 16 states have (on average 14.0) internal successors, (224), 17 states have internal predecessors, (224), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:27:51,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:51,944 INFO L93 Difference]: Finished difference Result 2692 states and 3182 transitions. [2024-09-12 19:27:51,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:27:51,945 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 14.0) internal successors, (224), 17 states have internal predecessors, (224), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 151 [2024-09-12 19:27:51,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:51,956 INFO L225 Difference]: With dead ends: 2692 [2024-09-12 19:27:51,956 INFO L226 Difference]: Without dead ends: 2691 [2024-09-12 19:27:51,957 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:27:51,958 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 26 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:51,958 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 163 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:51,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2024-09-12 19:27:52,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2691. [2024-09-12 19:27:52,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 2514 states have (on average 1.1030230708035005) internal successors, (2773), 2517 states have internal predecessors, (2773), 169 states have call successors, (169), 5 states have call predecessors, (169), 4 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2024-09-12 19:27:52,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3110 transitions. [2024-09-12 19:27:52,698 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3110 transitions. Word has length 151 [2024-09-12 19:27:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:52,698 INFO L474 AbstractCegarLoop]: Abstraction has 2691 states and 3110 transitions. [2024-09-12 19:27:52,698 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 14.0) internal successors, (224), 17 states have internal predecessors, (224), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:27:52,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3110 transitions. [2024-09-12 19:27:52,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-09-12 19:27:52,701 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:52,702 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:52,718 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 19:27:52,902 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:27:52,903 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:52,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:52,903 INFO L85 PathProgramCache]: Analyzing trace with hash -536478330, now seen corresponding path program 5 times [2024-09-12 19:27:52,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:52,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073351593] [2024-09-12 19:27:52,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:52,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:27:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:27:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:53,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:53,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073351593] [2024-09-12 19:27:53,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073351593] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:53,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698210643] [2024-09-12 19:27:53,076 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:27:53,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:53,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:53,078 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 19:27:53,080 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 19:27:53,149 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-09-12 19:27:53,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:53,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:27:53,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:53,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:53,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698210643] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:53,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:53,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2024-09-12 19:27:53,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848454736] [2024-09-12 19:27:53,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:53,516 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:27:53,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:53,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:27:53,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:27:53,517 INFO L87 Difference]: Start difference. First operand 2691 states and 3110 transitions. Second operand has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 14 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2024-09-12 19:27:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:54,892 INFO L93 Difference]: Finished difference Result 6233 states and 7284 transitions. [2024-09-12 19:27:54,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:27:54,893 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 14 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 159 [2024-09-12 19:27:54,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:54,912 INFO L225 Difference]: With dead ends: 6233 [2024-09-12 19:27:54,912 INFO L226 Difference]: Without dead ends: 4550 [2024-09-12 19:27:54,917 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 326 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:27:54,917 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 13 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:54,918 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 290 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:54,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2024-09-12 19:27:55,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 3220. [2024-09-12 19:27:55,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 3010 states have (on average 1.1) internal successors, (3311), 3013 states have internal predecessors, (3311), 202 states have call successors, (202), 5 states have call predecessors, (202), 4 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-09-12 19:27:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 3714 transitions. [2024-09-12 19:27:55,947 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 3714 transitions. Word has length 159 [2024-09-12 19:27:55,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:55,948 INFO L474 AbstractCegarLoop]: Abstraction has 3220 states and 3714 transitions. [2024-09-12 19:27:55,948 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 14 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2024-09-12 19:27:55,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 3714 transitions. [2024-09-12 19:27:55,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-09-12 19:27:55,951 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:55,951 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:55,968 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 19:27:56,152 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:56,152 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:56,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:56,153 INFO L85 PathProgramCache]: Analyzing trace with hash -278706554, now seen corresponding path program 6 times [2024-09-12 19:27:56,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:56,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269597068] [2024-09-12 19:27:56,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:56,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:27:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:27:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:56,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:56,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269597068] [2024-09-12 19:27:56,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269597068] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:56,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460451628] [2024-09-12 19:27:56,326 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:27:56,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:56,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:56,328 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 19:27:56,329 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 19:27:56,422 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-09-12 19:27:56,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:56,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:27:56,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:56,642 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:56,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:56,842 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:56,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460451628] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:56,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:56,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-09-12 19:27:56,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143304430] [2024-09-12 19:27:56,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:56,843 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:27:56,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:56,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:27:56,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:27:56,844 INFO L87 Difference]: Start difference. First operand 3220 states and 3714 transitions. Second operand has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:27:58,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:58,056 INFO L93 Difference]: Finished difference Result 3752 states and 4313 transitions. [2024-09-12 19:27:58,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:27:58,057 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 159 [2024-09-12 19:27:58,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:58,068 INFO L225 Difference]: With dead ends: 3752 [2024-09-12 19:27:58,068 INFO L226 Difference]: Without dead ends: 3215 [2024-09-12 19:27:58,070 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 327 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:27:58,070 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 32 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:58,070 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 352 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:58,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2024-09-12 19:27:58,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2024-09-12 19:27:58,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3213 states, 3003 states have (on average 1.0972360972360973) internal successors, (3295), 3006 states have internal predecessors, (3295), 202 states have call successors, (202), 5 states have call predecessors, (202), 4 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-09-12 19:27:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 3698 transitions. [2024-09-12 19:27:58,918 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 3698 transitions. Word has length 159 [2024-09-12 19:27:58,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:58,919 INFO L474 AbstractCegarLoop]: Abstraction has 3213 states and 3698 transitions. [2024-09-12 19:27:58,919 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:27:58,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:58,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 3698 transitions. [2024-09-12 19:27:58,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 19:27:58,921 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:58,922 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:58,937 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 19:27:59,122 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:59,122 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:59,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:59,123 INFO L85 PathProgramCache]: Analyzing trace with hash 54019570, now seen corresponding path program 3 times [2024-09-12 19:27:59,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:59,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928106578] [2024-09-12 19:27:59,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:59,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:27:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:27:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 18 proven. 323 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-09-12 19:27:59,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:59,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928106578] [2024-09-12 19:27:59,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928106578] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:59,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897523579] [2024-09-12 19:27:59,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:27:59,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:59,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:59,360 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 19:27:59,362 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 19:27:59,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-12 19:27:59,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:59,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 19:27:59,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:00,026 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 225 proven. 70 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-09-12 19:28:00,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:00,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897523579] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:00,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:28:00,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 25 [2024-09-12 19:28:00,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342006214] [2024-09-12 19:28:00,632 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:00,632 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 19:28:00,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:00,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 19:28:00,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:28:00,634 INFO L87 Difference]: Start difference. First operand 3213 states and 3698 transitions. Second operand has 26 states, 25 states have (on average 8.04) internal successors, (201), 26 states have internal predecessors, (201), 11 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2024-09-12 19:28:04,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:04,073 INFO L93 Difference]: Finished difference Result 3784 states and 4340 transitions. [2024-09-12 19:28:04,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-09-12 19:28:04,074 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.04) internal successors, (201), 26 states have internal predecessors, (201), 11 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) Word has length 161 [2024-09-12 19:28:04,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:04,086 INFO L225 Difference]: With dead ends: 3784 [2024-09-12 19:28:04,086 INFO L226 Difference]: Without dead ends: 3327 [2024-09-12 19:28:04,090 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2536 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1300, Invalid=7442, Unknown=0, NotChecked=0, Total=8742 [2024-09-12 19:28:04,090 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 514 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:04,091 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 281 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:28:04,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2024-09-12 19:28:04,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 3286. [2024-09-12 19:28:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3072 states have (on average 1.0908203125) internal successors, (3351), 3075 states have internal predecessors, (3351), 206 states have call successors, (206), 5 states have call predecessors, (206), 4 states have return successors, (205), 205 states have call predecessors, (205), 205 states have call successors, (205) [2024-09-12 19:28:05,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 3762 transitions. [2024-09-12 19:28:05,006 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 3762 transitions. Word has length 161 [2024-09-12 19:28:05,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:05,006 INFO L474 AbstractCegarLoop]: Abstraction has 3286 states and 3762 transitions. [2024-09-12 19:28:05,007 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.04) internal successors, (201), 26 states have internal predecessors, (201), 11 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2024-09-12 19:28:05,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 3762 transitions. [2024-09-12 19:28:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-09-12 19:28:05,009 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:05,009 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:05,040 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 19:28:05,239 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:05,240 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:05,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash 74294285, now seen corresponding path program 7 times [2024-09-12 19:28:05,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:05,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942627170] [2024-09-12 19:28:05,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:05,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:28:05,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152301456] [2024-09-12 19:28:05,259 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 19:28:05,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:05,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:05,261 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 19:28:05,262 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 19:28:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:05,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 19:28:05,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 21 proven. 411 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 19:28:06,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:07,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:07,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942627170] [2024-09-12 19:28:07,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:28:07,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152301456] [2024-09-12 19:28:07,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152301456] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:07,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:28:07,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-09-12 19:28:07,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617423453] [2024-09-12 19:28:07,375 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:07,375 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 19:28:07,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:07,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 19:28:07,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=933, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:28:07,376 INFO L87 Difference]: Start difference. First operand 3286 states and 3762 transitions. Second operand has 29 states, 27 states have (on average 5.111111111111111) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:28:09,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:09,539 INFO L93 Difference]: Finished difference Result 3287 states and 3762 transitions. [2024-09-12 19:28:09,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-12 19:28:09,540 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 5.111111111111111) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Word has length 179 [2024-09-12 19:28:09,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:09,550 INFO L225 Difference]: With dead ends: 3287 [2024-09-12 19:28:09,550 INFO L226 Difference]: Without dead ends: 3286 [2024-09-12 19:28:09,551 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 876 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=610, Invalid=2582, Unknown=0, NotChecked=0, Total=3192 [2024-09-12 19:28:09,552 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 130 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:09,552 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 343 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:28:09,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2024-09-12 19:28:10,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3286. [2024-09-12 19:28:10,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3072 states have (on average 1.0904947916666667) internal successors, (3350), 3075 states have internal predecessors, (3350), 206 states have call successors, (206), 5 states have call predecessors, (206), 4 states have return successors, (205), 205 states have call predecessors, (205), 205 states have call successors, (205) [2024-09-12 19:28:10,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 3761 transitions. [2024-09-12 19:28:10,480 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 3761 transitions. Word has length 179 [2024-09-12 19:28:10,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:10,481 INFO L474 AbstractCegarLoop]: Abstraction has 3286 states and 3761 transitions. [2024-09-12 19:28:10,481 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 5.111111111111111) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:28:10,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:10,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 3761 transitions. [2024-09-12 19:28:10,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-09-12 19:28:10,483 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:10,484 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:10,501 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 19:28:10,687 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 19:28:10,688 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:10,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:10,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1529079929, now seen corresponding path program 8 times [2024-09-12 19:28:10,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:10,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993307857] [2024-09-12 19:28:10,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:10,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:28:10,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [872041192] [2024-09-12 19:28:10,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:28:10,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:10,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:10,714 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 19:28:10,715 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 19:28:10,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:28:10,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:10,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:28:10,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:11,131 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-09-12 19:28:11,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:15,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:15,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993307857] [2024-09-12 19:28:15,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:28:15,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872041192] [2024-09-12 19:28:15,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872041192] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:15,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:28:15,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:28:15,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616453563] [2024-09-12 19:28:15,730 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:15,731 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:28:15,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:15,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:28:15,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2024-09-12 19:28:15,731 INFO L87 Difference]: Start difference. First operand 3286 states and 3761 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:28:17,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:17,086 INFO L93 Difference]: Finished difference Result 4069 states and 4665 transitions. [2024-09-12 19:28:17,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:28:17,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 179 [2024-09-12 19:28:17,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:17,097 INFO L225 Difference]: With dead ends: 4069 [2024-09-12 19:28:17,097 INFO L226 Difference]: Without dead ends: 4068 [2024-09-12 19:28:17,098 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2024-09-12 19:28:17,098 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 19 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:17,099 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 226 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:28:17,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4068 states. [2024-09-12 19:28:18,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4068 to 3475. [2024-09-12 19:28:18,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 3249 states have (on average 1.092643890427824) internal successors, (3550), 3252 states have internal predecessors, (3550), 218 states have call successors, (218), 5 states have call predecessors, (218), 4 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2024-09-12 19:28:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 3985 transitions. [2024-09-12 19:28:18,096 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 3985 transitions. Word has length 179 [2024-09-12 19:28:18,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:18,096 INFO L474 AbstractCegarLoop]: Abstraction has 3475 states and 3985 transitions. [2024-09-12 19:28:18,096 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:28:18,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:18,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 3985 transitions. [2024-09-12 19:28:18,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 19:28:18,099 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:18,099 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:18,116 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-09-12 19:28:18,303 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 19:28:18,304 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:18,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:18,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2071684389, now seen corresponding path program 4 times [2024-09-12 19:28:18,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:18,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056351446] [2024-09-12 19:28:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:18,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,583 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 18 proven. 443 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:18,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:18,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056351446] [2024-09-12 19:28:18,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056351446] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:18,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528281698] [2024-09-12 19:28:18,584 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:28:18,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:18,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:18,586 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 19:28:18,587 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 19:28:18,654 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:28:18,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:18,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:28:18,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:18,922 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 21 proven. 455 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-09-12 19:28:18,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:31,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528281698] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:31,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:28:31,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 18 [2024-09-12 19:28:31,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862584626] [2024-09-12 19:28:31,218 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:31,218 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 19:28:31,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:31,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 19:28:31,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=623, Unknown=3, NotChecked=0, Total=812 [2024-09-12 19:28:31,219 INFO L87 Difference]: Start difference. First operand 3475 states and 3985 transitions. Second operand has 19 states, 18 states have (on average 10.5) internal successors, (189), 19 states have internal predecessors, (189), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:28:32,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:32,713 INFO L93 Difference]: Finished difference Result 3557 states and 4076 transitions. [2024-09-12 19:28:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 19:28:32,713 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.5) internal successors, (189), 19 states have internal predecessors, (189), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) Word has length 181 [2024-09-12 19:28:32,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:32,722 INFO L225 Difference]: With dead ends: 3557 [2024-09-12 19:28:32,722 INFO L226 Difference]: Without dead ends: 3556 [2024-09-12 19:28:32,723 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=671, Invalid=1582, Unknown=3, NotChecked=0, Total=2256 [2024-09-12 19:28:32,723 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 92 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:32,723 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 204 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:28:32,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2024-09-12 19:28:33,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 3523. [2024-09-12 19:28:33,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 3294 states have (on average 1.0907710989678203) internal successors, (3593), 3297 states have internal predecessors, (3593), 221 states have call successors, (221), 5 states have call predecessors, (221), 4 states have return successors, (220), 220 states have call predecessors, (220), 220 states have call successors, (220) [2024-09-12 19:28:33,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4034 transitions. [2024-09-12 19:28:33,709 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4034 transitions. Word has length 181 [2024-09-12 19:28:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:33,710 INFO L474 AbstractCegarLoop]: Abstraction has 3523 states and 4034 transitions. [2024-09-12 19:28:33,710 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.5) internal successors, (189), 19 states have internal predecessors, (189), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:28:33,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:33,710 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4034 transitions. [2024-09-12 19:28:33,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 19:28:33,712 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:33,713 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:33,729 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 19:28:33,916 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 19:28:33,917 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:33,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:33,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2002360721, now seen corresponding path program 5 times [2024-09-12 19:28:33,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:33,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028682140] [2024-09-12 19:28:33,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:33,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 21 proven. 460 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:34,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028682140] [2024-09-12 19:28:34,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028682140] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617496637] [2024-09-12 19:28:34,185 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:28:34,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:34,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:34,186 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 19:28:34,187 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 19:28:34,256 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-09-12 19:28:34,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:34,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:28:34,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:34,437 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 21 proven. 460 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:34,437 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 21 proven. 460 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:34,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617496637] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:34,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:34,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-09-12 19:28:34,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263927772] [2024-09-12 19:28:34,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:34,773 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 19:28:34,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:34,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 19:28:34,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2024-09-12 19:28:34,774 INFO L87 Difference]: Start difference. First operand 3523 states and 4034 transitions. Second operand has 25 states, 24 states have (on average 11.041666666666666) internal successors, (265), 25 states have internal predecessors, (265), 17 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2024-09-12 19:28:37,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:37,655 INFO L93 Difference]: Finished difference Result 6032 states and 6868 transitions. [2024-09-12 19:28:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-09-12 19:28:37,656 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 11.041666666666666) internal successors, (265), 25 states have internal predecessors, (265), 17 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) Word has length 181 [2024-09-12 19:28:37,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:37,668 INFO L225 Difference]: With dead ends: 6032 [2024-09-12 19:28:37,669 INFO L226 Difference]: Without dead ends: 6031 [2024-09-12 19:28:37,671 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1328, Invalid=2832, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 19:28:37,671 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 254 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:37,671 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 234 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:28:37,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2024-09-12 19:28:39,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 5837. [2024-09-12 19:28:39,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5837 states, 5480 states have (on average 1.0642335766423359) internal successors, (5832), 5483 states have internal predecessors, (5832), 349 states have call successors, (349), 5 states have call predecessors, (349), 4 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) [2024-09-12 19:28:39,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5837 states to 5837 states and 6529 transitions. [2024-09-12 19:28:39,555 INFO L78 Accepts]: Start accepts. Automaton has 5837 states and 6529 transitions. Word has length 181 [2024-09-12 19:28:39,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:39,556 INFO L474 AbstractCegarLoop]: Abstraction has 5837 states and 6529 transitions. [2024-09-12 19:28:39,556 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 11.041666666666666) internal successors, (265), 25 states have internal predecessors, (265), 17 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2024-09-12 19:28:39,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5837 states and 6529 transitions. [2024-09-12 19:28:39,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-09-12 19:28:39,559 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:39,559 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:39,575 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-09-12 19:28:39,759 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 19:28:39,760 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:39,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:39,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2114524741, now seen corresponding path program 2 times [2024-09-12 19:28:39,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:39,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72637905] [2024-09-12 19:28:39,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:39,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:28:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:39,934 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:39,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:39,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72637905] [2024-09-12 19:28:39,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72637905] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:39,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741892976] [2024-09-12 19:28:39,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:28:39,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:39,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:39,936 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 19:28:39,938 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 19:28:40,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:28:40,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:40,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:28:40,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:40,153 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:40,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:40,382 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:40,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741892976] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:40,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:40,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-09-12 19:28:40,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258678117] [2024-09-12 19:28:40,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:40,383 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:28:40,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:40,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:28:40,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:28:40,384 INFO L87 Difference]: Start difference. First operand 5837 states and 6529 transitions. Second operand has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2024-09-12 19:28:45,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:45,152 INFO L93 Difference]: Finished difference Result 12065 states and 13685 transitions. [2024-09-12 19:28:45,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 19:28:45,152 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) Word has length 194 [2024-09-12 19:28:45,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:45,180 INFO L225 Difference]: With dead ends: 12065 [2024-09-12 19:28:45,181 INFO L226 Difference]: Without dead ends: 12064 [2024-09-12 19:28:45,185 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:28:45,186 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 326 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:45,186 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 307 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:28:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12064 states. [2024-09-12 19:28:48,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12064 to 9187. [2024-09-12 19:28:48,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9187 states, 8620 states have (on average 1.0779582366589326) internal successors, (9292), 8623 states have internal predecessors, (9292), 559 states have call successors, (559), 5 states have call predecessors, (559), 4 states have return successors, (558), 558 states have call predecessors, (558), 558 states have call successors, (558) [2024-09-12 19:28:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9187 states to 9187 states and 10409 transitions. [2024-09-12 19:28:48,064 INFO L78 Accepts]: Start accepts. Automaton has 9187 states and 10409 transitions. Word has length 194 [2024-09-12 19:28:48,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:48,064 INFO L474 AbstractCegarLoop]: Abstraction has 9187 states and 10409 transitions. [2024-09-12 19:28:48,065 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2024-09-12 19:28:48,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:48,065 INFO L276 IsEmpty]: Start isEmpty. Operand 9187 states and 10409 transitions. [2024-09-12 19:28:48,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-09-12 19:28:48,068 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:48,068 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:48,083 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-09-12 19:28:48,271 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 19:28:48,272 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:48,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:48,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1658843318, now seen corresponding path program 9 times [2024-09-12 19:28:48,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:48,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032675663] [2024-09-12 19:28:48,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:48,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:28:48,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574644372] [2024-09-12 19:28:48,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:28:48,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:48,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:48,295 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 19:28:48,296 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 19:28:48,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-12 19:28:48,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:48,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 19:28:48,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 318 proven. 71 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-09-12 19:28:49,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:49,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:49,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032675663] [2024-09-12 19:28:49,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:28:49,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574644372] [2024-09-12 19:28:49,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574644372] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:49,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:28:49,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 19:28:49,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304599472] [2024-09-12 19:28:49,763 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:49,763 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:28:49,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:49,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:28:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:28:49,764 INFO L87 Difference]: Start difference. First operand 9187 states and 10409 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 19:28:54,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:54,310 INFO L93 Difference]: Finished difference Result 9195 states and 10412 transitions. [2024-09-12 19:28:54,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 19:28:54,311 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 199 [2024-09-12 19:28:54,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:54,331 INFO L225 Difference]: With dead ends: 9195 [2024-09-12 19:28:54,332 INFO L226 Difference]: Without dead ends: 8608 [2024-09-12 19:28:54,335 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=175, Invalid=1015, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 19:28:54,336 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 59 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:54,336 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 309 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 19:28:54,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8608 states. [2024-09-12 19:28:57,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8608 to 7975. [2024-09-12 19:28:57,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7975 states, 7482 states have (on average 1.0799251537022188) internal successors, (8080), 7485 states have internal predecessors, (8080), 485 states have call successors, (485), 5 states have call predecessors, (485), 4 states have return successors, (484), 484 states have call predecessors, (484), 484 states have call successors, (484) [2024-09-12 19:28:57,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7975 states to 7975 states and 9049 transitions. [2024-09-12 19:28:57,171 INFO L78 Accepts]: Start accepts. Automaton has 7975 states and 9049 transitions. Word has length 199 [2024-09-12 19:28:57,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:57,171 INFO L474 AbstractCegarLoop]: Abstraction has 7975 states and 9049 transitions. [2024-09-12 19:28:57,171 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 19:28:57,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:57,171 INFO L276 IsEmpty]: Start isEmpty. Operand 7975 states and 9049 transitions. [2024-09-12 19:28:57,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-09-12 19:28:57,173 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:57,173 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:57,186 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 19:28:57,374 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 19:28:57,374 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:57,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:57,374 INFO L85 PathProgramCache]: Analyzing trace with hash -346432532, now seen corresponding path program 10 times [2024-09-12 19:28:57,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:57,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493588997] [2024-09-12 19:28:57,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:57,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:28:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 135 proven. 412 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:57,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:57,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493588997] [2024-09-12 19:28:57,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493588997] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:57,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775348166] [2024-09-12 19:28:57,584 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:28:57,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:57,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:57,586 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 19:28:57,587 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 19:28:57,657 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:28:57,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:57,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:28:57,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:57,907 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:57,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:58,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775348166] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:58,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:58,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-09-12 19:28:58,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994428396] [2024-09-12 19:28:58,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:58,114 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 19:28:58,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:58,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 19:28:58,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:28:58,115 INFO L87 Difference]: Start difference. First operand 7975 states and 9049 transitions. Second operand has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:29:02,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:02,006 INFO L93 Difference]: Finished difference Result 16532 states and 19050 transitions. [2024-09-12 19:29:02,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:29:02,006 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 199 [2024-09-12 19:29:02,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:02,028 INFO L225 Difference]: With dead ends: 16532 [2024-09-12 19:29:02,028 INFO L226 Difference]: Without dead ends: 11825 [2024-09-12 19:29:02,040 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 408 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:29:02,041 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 32 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:02,041 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 394 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:29:02,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11825 states. [2024-09-12 19:29:04,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11825 to 8930. [2024-09-12 19:29:04,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8377 states have (on average 1.0767577891846722) internal successors, (9020), 8380 states have internal predecessors, (9020), 545 states have call successors, (545), 5 states have call predecessors, (545), 4 states have return successors, (544), 544 states have call predecessors, (544), 544 states have call successors, (544) [2024-09-12 19:29:04,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 10109 transitions. [2024-09-12 19:29:04,850 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 10109 transitions. Word has length 199 [2024-09-12 19:29:04,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:04,851 INFO L474 AbstractCegarLoop]: Abstraction has 8930 states and 10109 transitions. [2024-09-12 19:29:04,851 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:29:04,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:04,851 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 10109 transitions. [2024-09-12 19:29:04,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-09-12 19:29:04,853 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:04,854 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:04,870 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 19:29:05,054 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 19:29:05,054 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:05,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:05,055 INFO L85 PathProgramCache]: Analyzing trace with hash -356774595, now seen corresponding path program 11 times [2024-09-12 19:29:05,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:05,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404388814] [2024-09-12 19:29:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:05,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:05,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671503277] [2024-09-12 19:29:05,077 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:29:05,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:05,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:05,079 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 19:29:05,081 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 19:29:05,169 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-09-12 19:29:05,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:05,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-09-12 19:29:05,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 24 proven. 656 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-09-12 19:29:06,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:07,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:07,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404388814] [2024-09-12 19:29:07,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:07,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671503277] [2024-09-12 19:29:07,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671503277] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:07,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:07,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2024-09-12 19:29:07,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190242008] [2024-09-12 19:29:07,071 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:07,072 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 19:29:07,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:07,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 19:29:07,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1284, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 19:29:07,073 INFO L87 Difference]: Start difference. First operand 8930 states and 10109 transitions. Second operand has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 33 states have internal predecessors, (168), 13 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 19:29:12,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:12,965 INFO L93 Difference]: Finished difference Result 9168 states and 10379 transitions. [2024-09-12 19:29:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-09-12 19:29:12,965 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 33 states have internal predecessors, (168), 13 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) Word has length 219 [2024-09-12 19:29:12,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:12,985 INFO L225 Difference]: With dead ends: 9168 [2024-09-12 19:29:12,986 INFO L226 Difference]: Without dead ends: 9167 [2024-09-12 19:29:12,991 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3999 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1843, Invalid=10147, Unknown=0, NotChecked=0, Total=11990 [2024-09-12 19:29:12,991 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 269 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:12,991 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 352 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:29:12,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9167 states. [2024-09-12 19:29:16,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9167 to 8930. [2024-09-12 19:29:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8377 states have (on average 1.0766384147069357) internal successors, (9019), 8380 states have internal predecessors, (9019), 545 states have call successors, (545), 5 states have call predecessors, (545), 4 states have return successors, (544), 544 states have call predecessors, (544), 544 states have call successors, (544) [2024-09-12 19:29:16,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 10108 transitions. [2024-09-12 19:29:16,173 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 10108 transitions. Word has length 219 [2024-09-12 19:29:16,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:16,174 INFO L474 AbstractCegarLoop]: Abstraction has 8930 states and 10108 transitions. [2024-09-12 19:29:16,174 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 33 states have internal predecessors, (168), 13 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 19:29:16,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:16,174 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 10108 transitions. [2024-09-12 19:29:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-09-12 19:29:16,176 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:16,176 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:16,187 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-09-12 19:29:16,376 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 19:29:16,377 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:16,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:16,377 INFO L85 PathProgramCache]: Analyzing trace with hash -873476385, now seen corresponding path program 12 times [2024-09-12 19:29:16,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:16,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189625578] [2024-09-12 19:29:16,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:16,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:16,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633778427] [2024-09-12 19:29:16,406 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:29:16,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:16,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:16,408 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 19:29:16,409 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 19:29:16,494 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-09-12 19:29:16,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:16,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 19:29:16,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:17,089 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-09-12 19:29:17,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:17,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:17,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189625578] [2024-09-12 19:29:17,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:17,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633778427] [2024-09-12 19:29:17,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633778427] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:17,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:17,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:29:17,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71317856] [2024-09-12 19:29:17,312 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:17,313 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:29:17,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:17,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:29:17,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:29:17,314 INFO L87 Difference]: Start difference. First operand 8930 states and 10108 transitions. Second operand has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:29:20,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:20,747 INFO L93 Difference]: Finished difference Result 9613 states and 10869 transitions. [2024-09-12 19:29:20,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:29:20,748 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 219 [2024-09-12 19:29:20,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:20,767 INFO L225 Difference]: With dead ends: 9613 [2024-09-12 19:29:20,767 INFO L226 Difference]: Without dead ends: 9612 [2024-09-12 19:29:20,769 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:29:20,770 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 19 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:20,770 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 512 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:29:20,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9612 states. [2024-09-12 19:29:23,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9612 to 8939. [2024-09-12 19:29:23,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8939 states, 8385 states have (on average 1.0766845557543232) internal successors, (9028), 8388 states have internal predecessors, (9028), 546 states have call successors, (546), 5 states have call predecessors, (546), 4 states have return successors, (545), 545 states have call predecessors, (545), 545 states have call successors, (545) [2024-09-12 19:29:23,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8939 states to 8939 states and 10119 transitions. [2024-09-12 19:29:23,764 INFO L78 Accepts]: Start accepts. Automaton has 8939 states and 10119 transitions. Word has length 219 [2024-09-12 19:29:23,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:23,765 INFO L474 AbstractCegarLoop]: Abstraction has 8939 states and 10119 transitions. [2024-09-12 19:29:23,765 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:29:23,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:23,765 INFO L276 IsEmpty]: Start isEmpty. Operand 8939 states and 10119 transitions. [2024-09-12 19:29:23,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-09-12 19:29:23,767 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:23,767 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:23,779 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 19:29:23,968 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:23,968 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:23,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:23,968 INFO L85 PathProgramCache]: Analyzing trace with hash 2011829074, now seen corresponding path program 13 times [2024-09-12 19:29:23,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:23,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14944980] [2024-09-12 19:29:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:23,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:29:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:29:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:29:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:29:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:29:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:29:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:29:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:29:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:29:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:29:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:29:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:29:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:29:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:29:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 203 proven. 638 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-09-12 19:29:24,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:24,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14944980] [2024-09-12 19:29:24,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14944980] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:24,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792762771] [2024-09-12 19:29:24,241 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 19:29:24,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:24,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:24,243 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 19:29:24,244 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 19:29:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:24,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:29:24,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 257 proven. 584 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-09-12 19:29:24,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 257 proven. 584 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-09-12 19:29:24,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792762771] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:29:24,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:29:24,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 21 [2024-09-12 19:29:24,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670905536] [2024-09-12 19:29:24,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:24,943 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:29:24,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:24,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:29:24,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:29:24,944 INFO L87 Difference]: Start difference. First operand 8939 states and 10119 transitions. Second operand has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 19 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) [2024-09-12 19:29:29,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:29,744 INFO L93 Difference]: Finished difference Result 17423 states and 20009 transitions. [2024-09-12 19:29:29,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:29:29,744 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 19 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) Word has length 239 [2024-09-12 19:29:29,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:29,771 INFO L225 Difference]: With dead ends: 17423 [2024-09-12 19:29:29,771 INFO L226 Difference]: Without dead ends: 13040 [2024-09-12 19:29:29,783 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 489 SyntacticMatches, 11 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2024-09-12 19:29:29,783 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 30 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:29,783 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 589 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:29:29,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13040 states. [2024-09-12 19:29:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13040 to 10335. [2024-09-12 19:29:33,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10335 states, 9694 states have (on average 1.073653806478234) internal successors, (10408), 9697 states have internal predecessors, (10408), 633 states have call successors, (633), 5 states have call predecessors, (633), 4 states have return successors, (632), 632 states have call predecessors, (632), 632 states have call successors, (632) [2024-09-12 19:29:33,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 11673 transitions. [2024-09-12 19:29:33,147 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 11673 transitions. Word has length 239 [2024-09-12 19:29:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:33,147 INFO L474 AbstractCegarLoop]: Abstraction has 10335 states and 11673 transitions. [2024-09-12 19:29:33,147 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 19 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) [2024-09-12 19:29:33,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:33,148 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 11673 transitions. [2024-09-12 19:29:33,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-09-12 19:29:33,150 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:33,150 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:33,163 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 19:29:33,351 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:33,351 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:33,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:33,352 INFO L85 PathProgramCache]: Analyzing trace with hash -88766867, now seen corresponding path program 14 times [2024-09-12 19:29:33,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:33,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982284930] [2024-09-12 19:29:33,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:33,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:33,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137568980] [2024-09-12 19:29:33,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:29:33,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:33,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:33,376 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 19:29:33,380 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 19:29:33,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:29:33,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:33,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 19:29:33,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:33,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-09-12 19:29:33,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:43,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:43,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982284930] [2024-09-12 19:29:43,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:43,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137568980] [2024-09-12 19:29:43,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137568980] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:43,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:43,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 19:29:43,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002888814] [2024-09-12 19:29:43,042 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:43,043 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:29:43,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:43,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:29:43,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=251, Unknown=2, NotChecked=0, Total=342 [2024-09-12 19:29:43,043 INFO L87 Difference]: Start difference. First operand 10335 states and 11673 transitions. Second operand has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:29:46,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:46,631 INFO L93 Difference]: Finished difference Result 10336 states and 11673 transitions. [2024-09-12 19:29:46,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:29:46,632 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 259 [2024-09-12 19:29:46,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:46,652 INFO L225 Difference]: With dead ends: 10336 [2024-09-12 19:29:46,652 INFO L226 Difference]: Without dead ends: 10335 [2024-09-12 19:29:46,654 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=89, Invalid=251, Unknown=2, NotChecked=0, Total=342 [2024-09-12 19:29:46,654 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 17 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:46,654 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 750 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:29:46,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10335 states. [2024-09-12 19:29:49,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10335 to 10335. [2024-09-12 19:29:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10335 states, 9694 states have (on average 1.0735506498865277) internal successors, (10407), 9697 states have internal predecessors, (10407), 633 states have call successors, (633), 5 states have call predecessors, (633), 4 states have return successors, (632), 632 states have call predecessors, (632), 632 states have call successors, (632) [2024-09-12 19:29:49,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 11672 transitions. [2024-09-12 19:29:49,980 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 11672 transitions. Word has length 259 [2024-09-12 19:29:49,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:49,981 INFO L474 AbstractCegarLoop]: Abstraction has 10335 states and 11672 transitions. [2024-09-12 19:29:49,981 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:29:49,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:49,981 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 11672 transitions. [2024-09-12 19:29:49,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-09-12 19:29:49,984 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:49,984 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:49,996 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 19:29:50,185 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:50,185 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:50,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:50,185 INFO L85 PathProgramCache]: Analyzing trace with hash 575873807, now seen corresponding path program 15 times [2024-09-12 19:29:50,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:50,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173198764] [2024-09-12 19:29:50,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:50,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:50,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056383444] [2024-09-12 19:29:50,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:29:50,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:50,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:50,208 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:50,209 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 19:29:50,287 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-12 19:29:50,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:50,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:29:50,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1252 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-09-12 19:29:50,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:50,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:50,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173198764] [2024-09-12 19:29:50,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:50,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056383444] [2024-09-12 19:29:50,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056383444] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:50,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:50,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 19:29:50,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972556087] [2024-09-12 19:29:50,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:50,818 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:29:50,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:50,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:29:50,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:29:50,819 INFO L87 Difference]: Start difference. First operand 10335 states and 11672 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:29:54,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:54,494 INFO L93 Difference]: Finished difference Result 16170 states and 18408 transitions. [2024-09-12 19:29:54,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 19:29:54,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 259 [2024-09-12 19:29:54,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:54,519 INFO L225 Difference]: With dead ends: 16170 [2024-09-12 19:29:54,519 INFO L226 Difference]: Without dead ends: 9933 [2024-09-12 19:29:54,532 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2024-09-12 19:29:54,533 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 139 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:54,533 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 417 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:29:54,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9933 states. [2024-09-12 19:29:57,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9933 to 9760. [2024-09-12 19:29:57,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9760 states, 9151 states have (on average 1.0755108731286198) internal successors, (9842), 9154 states have internal predecessors, (9842), 601 states have call successors, (601), 5 states have call predecessors, (601), 4 states have return successors, (600), 600 states have call predecessors, (600), 600 states have call successors, (600) [2024-09-12 19:29:57,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9760 states to 9760 states and 11043 transitions. [2024-09-12 19:29:57,776 INFO L78 Accepts]: Start accepts. Automaton has 9760 states and 11043 transitions. Word has length 259 [2024-09-12 19:29:57,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:57,777 INFO L474 AbstractCegarLoop]: Abstraction has 9760 states and 11043 transitions. [2024-09-12 19:29:57,777 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:29:57,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:57,777 INFO L276 IsEmpty]: Start isEmpty. Operand 9760 states and 11043 transitions. [2024-09-12 19:29:57,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-09-12 19:29:57,779 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:57,779 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:57,791 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 19:29:57,980 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 19:29:57,980 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:57,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:57,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1378899781, now seen corresponding path program 16 times [2024-09-12 19:29:57,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:57,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598332696] [2024-09-12 19:29:57,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:57,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:58,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2861363] [2024-09-12 19:29:58,001 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:29:58,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:58,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:58,003 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 19:29:58,007 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 19:29:58,092 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:29:58,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:58,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 19:29:58,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:58,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 30 proven. 862 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-09-12 19:29:58,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:58,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:58,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598332696] [2024-09-12 19:29:58,916 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:58,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2861363] [2024-09-12 19:29:58,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2861363] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:58,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:58,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 19:29:58,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676789818] [2024-09-12 19:29:58,916 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:58,916 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:29:58,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:58,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:29:58,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:29:58,917 INFO L87 Difference]: Start difference. First operand 9760 states and 11043 transitions. Second operand has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:30:02,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:02,825 INFO L93 Difference]: Finished difference Result 10263 states and 11610 transitions. [2024-09-12 19:30:02,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:30:02,825 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 9 states have call successors, (11) Word has length 259 [2024-09-12 19:30:02,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:02,848 INFO L225 Difference]: With dead ends: 10263 [2024-09-12 19:30:02,848 INFO L226 Difference]: Without dead ends: 10262 [2024-09-12 19:30:02,849 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:30:02,849 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 35 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:02,849 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 583 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:30:02,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10262 states. [2024-09-12 19:30:05,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10262 to 9769. [2024-09-12 19:30:05,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9769 states, 9159 states have (on average 1.0755540997925537) internal successors, (9851), 9162 states have internal predecessors, (9851), 602 states have call successors, (602), 5 states have call predecessors, (602), 4 states have return successors, (601), 601 states have call predecessors, (601), 601 states have call successors, (601) [2024-09-12 19:30:05,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9769 states to 9769 states and 11054 transitions. [2024-09-12 19:30:05,979 INFO L78 Accepts]: Start accepts. Automaton has 9769 states and 11054 transitions. Word has length 259 [2024-09-12 19:30:05,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:05,979 INFO L474 AbstractCegarLoop]: Abstraction has 9769 states and 11054 transitions. [2024-09-12 19:30:05,980 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:30:05,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:05,980 INFO L276 IsEmpty]: Start isEmpty. Operand 9769 states and 11054 transitions. [2024-09-12 19:30:05,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-09-12 19:30:05,983 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:05,983 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:05,995 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 19:30:06,183 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:06,183 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:06,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:06,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1282806600, now seen corresponding path program 17 times [2024-09-12 19:30:06,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:06,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367115776] [2024-09-12 19:30:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:06,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:30:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:30:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:30:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:30:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:30:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:30:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:30:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:30:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:30:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:30:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:30:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:30:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:30:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:30:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 19:30:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 19:30:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 287 proven. 912 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-09-12 19:30:06,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:06,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367115776] [2024-09-12 19:30:06,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367115776] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:06,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553227876] [2024-09-12 19:30:06,496 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:30:06,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:06,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:06,497 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 19:30:06,498 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 19:30:06,587 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-09-12 19:30:06,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:06,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:30:06,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:06,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-09-12 19:30:06,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-09-12 19:30:07,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553227876] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:30:07,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:30:07,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 24 [2024-09-12 19:30:07,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382944445] [2024-09-12 19:30:07,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:07,255 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:30:07,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:07,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:30:07,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:30:07,256 INFO L87 Difference]: Start difference. First operand 9769 states and 11054 transitions. Second operand has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-09-12 19:30:12,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:12,335 INFO L93 Difference]: Finished difference Result 18025 states and 20668 transitions. [2024-09-12 19:30:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:30:12,336 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 279 [2024-09-12 19:30:12,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:12,364 INFO L225 Difference]: With dead ends: 18025 [2024-09-12 19:30:12,364 INFO L226 Difference]: Without dead ends: 13829 [2024-09-12 19:30:12,372 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 570 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:30:12,373 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 25 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:12,373 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 872 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:30:12,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13829 states. [2024-09-12 19:30:16,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13829 to 11396. [2024-09-12 19:30:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11396 states, 10684 states have (on average 1.0733807562710596) internal successors, (11468), 10687 states have internal predecessors, (11468), 704 states have call successors, (704), 5 states have call predecessors, (704), 4 states have return successors, (703), 703 states have call predecessors, (703), 703 states have call successors, (703) [2024-09-12 19:30:16,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11396 states to 11396 states and 12875 transitions. [2024-09-12 19:30:16,131 INFO L78 Accepts]: Start accepts. Automaton has 11396 states and 12875 transitions. Word has length 279 [2024-09-12 19:30:16,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:16,131 INFO L474 AbstractCegarLoop]: Abstraction has 11396 states and 12875 transitions. [2024-09-12 19:30:16,132 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-09-12 19:30:16,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 11396 states and 12875 transitions. [2024-09-12 19:30:16,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-09-12 19:30:16,136 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:16,136 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:16,151 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 19:30:16,336 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:16,336 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:16,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:16,337 INFO L85 PathProgramCache]: Analyzing trace with hash -267776099, now seen corresponding path program 18 times [2024-09-12 19:30:16,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:16,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956016495] [2024-09-12 19:30:16,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:16,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:30:16,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530907866] [2024-09-12 19:30:16,360 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:30:16,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:16,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:16,363 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 19:30:16,364 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 19:30:16,459 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-09-12 19:30:16,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:16,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-12 19:30:16,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 39 proven. 1305 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-09-12 19:30:18,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:19,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:19,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956016495] [2024-09-12 19:30:19,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:30:19,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530907866] [2024-09-12 19:30:19,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530907866] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:19,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:30:19,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2024-09-12 19:30:19,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938802801] [2024-09-12 19:30:19,020 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:19,020 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-12 19:30:19,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:19,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-12 19:30:19,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=1656, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 19:30:19,021 INFO L87 Difference]: Start difference. First operand 11396 states and 12875 transitions. Second operand has 41 states, 39 states have (on average 5.846153846153846) internal successors, (228), 39 states have internal predecessors, (228), 17 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:30:25,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:25,318 INFO L93 Difference]: Finished difference Result 11397 states and 12875 transitions. [2024-09-12 19:30:25,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-09-12 19:30:25,318 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 39 states have (on average 5.846153846153846) internal successors, (228), 39 states have internal predecessors, (228), 17 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) Word has length 299 [2024-09-12 19:30:25,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:25,342 INFO L225 Difference]: With dead ends: 11397 [2024-09-12 19:30:25,342 INFO L226 Difference]: Without dead ends: 11396 [2024-09-12 19:30:25,345 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2832 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1906, Invalid=7214, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 19:30:25,345 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 233 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:25,345 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 358 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:30:25,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11396 states. [2024-09-12 19:30:29,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11396 to 11396. [2024-09-12 19:30:29,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11396 states, 10684 states have (on average 1.0732871583676526) internal successors, (11467), 10687 states have internal predecessors, (11467), 704 states have call successors, (704), 5 states have call predecessors, (704), 4 states have return successors, (703), 703 states have call predecessors, (703), 703 states have call successors, (703) [2024-09-12 19:30:29,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11396 states to 11396 states and 12874 transitions. [2024-09-12 19:30:29,099 INFO L78 Accepts]: Start accepts. Automaton has 11396 states and 12874 transitions. Word has length 299 [2024-09-12 19:30:29,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:29,100 INFO L474 AbstractCegarLoop]: Abstraction has 11396 states and 12874 transitions. [2024-09-12 19:30:29,100 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 39 states have (on average 5.846153846153846) internal successors, (228), 39 states have internal predecessors, (228), 17 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:30:29,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 11396 states and 12874 transitions. [2024-09-12 19:30:29,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-09-12 19:30:29,105 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:29,105 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:29,119 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 19:30:29,306 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 19:30:29,306 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:29,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:29,306 INFO L85 PathProgramCache]: Analyzing trace with hash 895189419, now seen corresponding path program 19 times [2024-09-12 19:30:29,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:29,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822349308] [2024-09-12 19:30:29,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:29,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:30:29,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957572012] [2024-09-12 19:30:29,327 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 19:30:29,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:29,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:29,329 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 19:30:29,334 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 19:30:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:29,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-09-12 19:30:29,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 39 proven. 1402 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-09-12 19:30:30,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:31,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:31,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822349308] [2024-09-12 19:30:31,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:30:31,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957572012] [2024-09-12 19:30:31,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957572012] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:31,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:30:31,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2024-09-12 19:30:31,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332681851] [2024-09-12 19:30:31,210 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:31,211 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 19:30:31,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:31,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 19:30:31,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1240, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 19:30:31,212 INFO L87 Difference]: Start difference. First operand 11396 states and 12874 transitions. Second operand has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-09-12 19:30:37,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:37,655 INFO L93 Difference]: Finished difference Result 15817 states and 18008 transitions. [2024-09-12 19:30:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 19:30:37,656 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 299 [2024-09-12 19:30:37,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:37,684 INFO L225 Difference]: With dead ends: 15817 [2024-09-12 19:30:37,684 INFO L226 Difference]: Without dead ends: 11592 [2024-09-12 19:30:37,693 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=200, Invalid=2350, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 19:30:37,693 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 94 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 6995 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 7009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 6995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:37,693 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1634 Invalid, 7009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 6995 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-09-12 19:30:37,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11592 states. [2024-09-12 19:30:41,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11592 to 11348. [2024-09-12 19:30:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11348 states, 10638 states have (on average 1.0732280503854108) internal successors, (11417), 10641 states have internal predecessors, (11417), 702 states have call successors, (702), 5 states have call predecessors, (702), 4 states have return successors, (701), 701 states have call predecessors, (701), 701 states have call successors, (701) [2024-09-12 19:30:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11348 states to 11348 states and 12820 transitions. [2024-09-12 19:30:41,446 INFO L78 Accepts]: Start accepts. Automaton has 11348 states and 12820 transitions. Word has length 299 [2024-09-12 19:30:41,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:41,446 INFO L474 AbstractCegarLoop]: Abstraction has 11348 states and 12820 transitions. [2024-09-12 19:30:41,446 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-09-12 19:30:41,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 11348 states and 12820 transitions. [2024-09-12 19:30:41,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-09-12 19:30:41,450 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:41,451 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:41,463 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 19:30:41,651 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 19:30:41,651 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:41,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:41,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1692330993, now seen corresponding path program 3 times [2024-09-12 19:30:41,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:41,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916062499] [2024-09-12 19:30:41,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:41,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:30:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:30:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:30:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:30:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:30:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:30:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:30:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:30:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:30:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:30:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:30:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:30:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:30:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:30:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 19:30:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 19:30:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 19:30:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 19:30:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:41,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:30:41,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:41,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916062499] [2024-09-12 19:30:41,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916062499] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:41,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918733339] [2024-09-12 19:30:41,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:30:41,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:41,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:42,000 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 19:30:42,003 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 19:30:42,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-09-12 19:30:42,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:42,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 19:30:42,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:30:42,297 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:30:42,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918733339] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:30:42,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:30:42,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2024-09-12 19:30:42,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80198539] [2024-09-12 19:30:42,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:42,766 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 19:30:42,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:42,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 19:30:42,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:30:42,767 INFO L87 Difference]: Start difference. First operand 11348 states and 12820 transitions. Second operand has 33 states, 32 states have (on average 14.5) internal successors, (464), 33 states have internal predecessors, (464), 32 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) [2024-09-12 19:30:48,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:48,583 INFO L93 Difference]: Finished difference Result 16452 states and 19183 transitions. [2024-09-12 19:30:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 19:30:48,583 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 14.5) internal successors, (464), 33 states have internal predecessors, (464), 32 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) Word has length 311 [2024-09-12 19:30:48,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:48,632 INFO L225 Difference]: With dead ends: 16452 [2024-09-12 19:30:48,633 INFO L226 Difference]: Without dead ends: 16451 [2024-09-12 19:30:48,637 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:30:48,637 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 20 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:48,638 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 281 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:30:48,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16451 states. [2024-09-12 19:30:54,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16451 to 16451. [2024-09-12 19:30:54,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16451 states, 15422 states have (on average 1.0907794060433147) internal successors, (16822), 15425 states have internal predecessors, (16822), 1021 states have call successors, (1021), 5 states have call predecessors, (1021), 4 states have return successors, (1020), 1020 states have call predecessors, (1020), 1020 states have call successors, (1020) [2024-09-12 19:30:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16451 states to 16451 states and 18863 transitions. [2024-09-12 19:30:54,255 INFO L78 Accepts]: Start accepts. Automaton has 16451 states and 18863 transitions. Word has length 311 [2024-09-12 19:30:54,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:54,256 INFO L474 AbstractCegarLoop]: Abstraction has 16451 states and 18863 transitions. [2024-09-12 19:30:54,256 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 14.5) internal successors, (464), 33 states have internal predecessors, (464), 32 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) [2024-09-12 19:30:54,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:54,256 INFO L276 IsEmpty]: Start isEmpty. Operand 16451 states and 18863 transitions. [2024-09-12 19:30:54,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-09-12 19:30:54,261 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:54,261 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:54,273 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 19:30:54,461 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:54,461 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:54,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:54,462 INFO L85 PathProgramCache]: Analyzing trace with hash -519429656, now seen corresponding path program 20 times [2024-09-12 19:30:54,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:54,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419879212] [2024-09-12 19:30:54,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:54,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:30:54,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870626086] [2024-09-12 19:30:54,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:30:54,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:54,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:54,485 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 19:30:54,486 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 19:30:54,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:30:54,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:54,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 19:30:54,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:55,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2005 backedges. 0 proven. 1293 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-09-12 19:30:55,090 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:55,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:55,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419879212] [2024-09-12 19:30:55,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:30:55,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870626086] [2024-09-12 19:30:55,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870626086] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:55,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:30:55,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 19:30:55,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63705776] [2024-09-12 19:30:55,450 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:55,451 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:30:55,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:55,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:30:55,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:30:55,451 INFO L87 Difference]: Start difference. First operand 16451 states and 18863 transitions. Second operand has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:31:01,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:01,908 INFO L93 Difference]: Finished difference Result 17994 states and 20657 transitions. [2024-09-12 19:31:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:31:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 319 [2024-09-12 19:31:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:01,973 INFO L225 Difference]: With dead ends: 17994 [2024-09-12 19:31:01,974 INFO L226 Difference]: Without dead ends: 17993 [2024-09-12 19:31:01,979 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:31:01,979 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 21 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:01,979 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 384 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:31:01,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17993 states. [2024-09-12 19:31:08,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17993 to 17400. [2024-09-12 19:31:08,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17400 states, 16313 states have (on average 1.0915833997425366) internal successors, (17807), 16316 states have internal predecessors, (17807), 1079 states have call successors, (1079), 5 states have call predecessors, (1079), 4 states have return successors, (1078), 1078 states have call predecessors, (1078), 1078 states have call successors, (1078) [2024-09-12 19:31:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17400 states to 17400 states and 19964 transitions. [2024-09-12 19:31:08,342 INFO L78 Accepts]: Start accepts. Automaton has 17400 states and 19964 transitions. Word has length 319 [2024-09-12 19:31:08,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:08,343 INFO L474 AbstractCegarLoop]: Abstraction has 17400 states and 19964 transitions. [2024-09-12 19:31:08,343 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:31:08,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:08,343 INFO L276 IsEmpty]: Start isEmpty. Operand 17400 states and 19964 transitions. [2024-09-12 19:31:08,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-09-12 19:31:08,350 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:08,350 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:08,370 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-12 19:31:08,550 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 19:31:08,551 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:31:08,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:08,551 INFO L85 PathProgramCache]: Analyzing trace with hash -290494434, now seen corresponding path program 21 times [2024-09-12 19:31:08,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:08,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664169521] [2024-09-12 19:31:08,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:08,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:31:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:31:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:31:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:31:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:31:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:31:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:31:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:31:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:31:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:31:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:31:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:31:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 19:31:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 19:31:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 19:31:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 19:31:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:08,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 387 proven. 1234 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:31:08,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:08,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664169521] [2024-09-12 19:31:08,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664169521] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:31:08,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314359970] [2024-09-12 19:31:08,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:31:08,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:08,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:31:08,933 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 19:31:08,935 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 19:31:09,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-09-12 19:31:09,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:31:09,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 19:31:09,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:31:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 0 proven. 1201 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2024-09-12 19:31:09,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:31:09,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314359970] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:31:09,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:31:09,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11] total 28 [2024-09-12 19:31:09,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442366943] [2024-09-12 19:31:09,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:31:09,837 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 19:31:09,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:09,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 19:31:09,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2024-09-12 19:31:09,839 INFO L87 Difference]: Start difference. First operand 17400 states and 19964 transitions. Second operand has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 24 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26)