./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound5.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound5.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 011044826c7a01c153d09406112c335d599fb158d7a4b72e6a624d5427477c0d --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:38:43,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:38:43,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:38:43,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:38:43,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:38:43,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:38:43,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:38:43,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:38:43,881 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:38:43,882 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:38:43,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:38:43,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:38:43,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:38:43,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:38:43,889 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:38:43,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:38:43,890 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:38:43,890 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:38:43,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:38:43,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:38:43,891 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:38:43,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:38:43,892 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:38:43,892 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:38:43,892 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:38:43,892 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:38:43,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:38:43,893 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:38:43,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:38:43,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:38:43,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:38:43,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:38:43,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:38:43,894 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:38:43,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:38:43,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:38:43,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:38:43,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:38:43,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:38:43,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:38:43,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:38:43,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:38:43,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 011044826c7a01c153d09406112c335d599fb158d7a4b72e6a624d5427477c0d Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:38:44,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:38:44,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:38:44,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:38:44,259 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:38:44,260 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:38:44,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound5.c [2024-09-12 18:38:45,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:38:46,015 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:38:46,018 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound5.c [2024-09-12 18:38:46,029 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/d4d604300/9dd56446b08e4f5e93fcbf08582aa5c6/FLAG923dd11d3 [2024-09-12 18:38:46,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/d4d604300/9dd56446b08e4f5e93fcbf08582aa5c6 [2024-09-12 18:38:46,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:38:46,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:38:46,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:38:46,054 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:38:46,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:38:46,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f3ae4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46, skipping insertion in model container [2024-09-12 18:38:46,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,083 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:38:46,259 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/cohendiv-ll_unwindbound5.c[576,589] [2024-09-12 18:38:46,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:38:46,298 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:38:46,311 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/cohendiv-ll_unwindbound5.c[576,589] [2024-09-12 18:38:46,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:38:46,344 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:38:46,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46 WrapperNode [2024-09-12 18:38:46,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:38:46,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:38:46,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:38:46,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:38:46,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,370 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:38:46,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:38:46,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:38:46,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:38:46,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:38:46,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,404 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:38:46,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:38:46,424 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:38:46,424 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:38:46,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:38:46,425 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (1/1) ... [2024-09-12 18:38:46,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:38:46,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:46,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:38:46,465 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:38:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:38:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:38:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:38:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:38:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:38:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:38:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:38:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:38:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:38:46,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:38:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:38:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:38:46,578 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:38:46,580 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:38:47,036 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-09-12 18:38:47,041 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:38:47,070 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:38:47,071 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 18:38:47,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:38:47 BoogieIcfgContainer [2024-09-12 18:38:47,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:38:47,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:38:47,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:38:47,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:38:47,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:38:46" (1/3) ... [2024-09-12 18:38:47,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4e1adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:38:47, skipping insertion in model container [2024-09-12 18:38:47,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:46" (2/3) ... [2024-09-12 18:38:47,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4e1adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:38:47, skipping insertion in model container [2024-09-12 18:38:47,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:38:47" (3/3) ... [2024-09-12 18:38:47,080 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound5.c [2024-09-12 18:38:47,095 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:38:47,096 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2024-09-12 18:38:47,160 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:38:47,168 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;@399fb93a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:38:47,169 INFO L337 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-09-12 18:38:47,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 87 states have internal predecessors, (95), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:38:47,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:38:47,178 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:47,179 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:47,180 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:47,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:47,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1334578321, now seen corresponding path program 1 times [2024-09-12 18:38:47,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:47,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450015153] [2024-09-12 18:38:47,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:47,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:47,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:47,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:47,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:38:47,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:47,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450015153] [2024-09-12 18:38:47,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450015153] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:47,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:47,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:47,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564420772] [2024-09-12 18:38:47,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:47,373 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:38:47,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:47,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:38:47,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:38:47,397 INFO L87 Difference]: Start difference. First operand has 102 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 87 states have internal predecessors, (95), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:38:47,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:47,530 INFO L93 Difference]: Finished difference Result 201 states and 234 transitions. [2024-09-12 18:38:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:38:47,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 18:38:47,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:47,545 INFO L225 Difference]: With dead ends: 201 [2024-09-12 18:38:47,545 INFO L226 Difference]: Without dead ends: 103 [2024-09-12 18:38:47,549 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:38:47,555 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 14 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:47,557 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 176 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:47,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-09-12 18:38:47,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2024-09-12 18:38:47,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 50 states have (on average 1.78) internal successors, (89), 85 states have internal predecessors, (89), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:38:47,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2024-09-12 18:38:47,619 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 13 [2024-09-12 18:38:47,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:47,619 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2024-09-12 18:38:47,619 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:38:47,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:47,620 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2024-09-12 18:38:47,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:38:47,621 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:47,621 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:47,621 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:38:47,622 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:47,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:47,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1277320019, now seen corresponding path program 1 times [2024-09-12 18:38:47,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:47,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750307612] [2024-09-12 18:38:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:47,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:47,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:47,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:47,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:38:47,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:47,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750307612] [2024-09-12 18:38:47,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750307612] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:47,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:47,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:38:47,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133973750] [2024-09-12 18:38:47,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:47,800 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:47,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:47,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:47,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:47,803 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:38:47,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:47,983 INFO L93 Difference]: Finished difference Result 119 states and 128 transitions. [2024-09-12 18:38:47,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:38:47,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-09-12 18:38:47,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:47,988 INFO L225 Difference]: With dead ends: 119 [2024-09-12 18:38:47,988 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 18:38:47,989 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:38:47,990 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 19 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:47,991 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 331 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:47,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 18:38:48,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-09-12 18:38:48,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 54 states have (on average 1.7222222222222223) internal successors, (93), 89 states have internal predecessors, (93), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:38:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 111 transitions. [2024-09-12 18:38:48,013 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 111 transitions. Word has length 13 [2024-09-12 18:38:48,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:48,014 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 111 transitions. [2024-09-12 18:38:48,014 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:38:48,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:48,015 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 111 transitions. [2024-09-12 18:38:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:38:48,015 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:48,015 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:48,016 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:38:48,018 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:48,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:48,018 INFO L85 PathProgramCache]: Analyzing trace with hash 769610315, now seen corresponding path program 1 times [2024-09-12 18:38:48,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:48,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713394382] [2024-09-12 18:38:48,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:48,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:48,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895990815] [2024-09-12 18:38:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:48,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:48,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:48,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:48,049 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:38:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:38:48,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:48,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:38:48,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:48,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:48,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713394382] [2024-09-12 18:38:48,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:48,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895990815] [2024-09-12 18:38:48,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895990815] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:48,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:48,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:38:48,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454556149] [2024-09-12 18:38:48,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:48,124 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:38:48,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:48,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:38:48,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:38:48,125 INFO L87 Difference]: Start difference. First operand 102 states and 111 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:38:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:48,260 INFO L93 Difference]: Finished difference Result 126 states and 138 transitions. [2024-09-12 18:38:48,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:38:48,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-09-12 18:38:48,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:48,262 INFO L225 Difference]: With dead ends: 126 [2024-09-12 18:38:48,262 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 18:38:48,262 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:38:48,263 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 19 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:48,264 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 187 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:48,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 18:38:48,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 104. [2024-09-12 18:38:48,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 56 states have (on average 1.6964285714285714) internal successors, (95), 91 states have internal predecessors, (95), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:38:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2024-09-12 18:38:48,278 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 16 [2024-09-12 18:38:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:48,278 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2024-09-12 18:38:48,278 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:38:48,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:48,279 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2024-09-12 18:38:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 18:38:48,280 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:48,280 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:48,299 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:38:48,480 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:48,481 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:48,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:48,481 INFO L85 PathProgramCache]: Analyzing trace with hash 380213190, now seen corresponding path program 1 times [2024-09-12 18:38:48,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:48,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183358866] [2024-09-12 18:38:48,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:48,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:48,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795302544] [2024-09-12 18:38:48,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:48,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:48,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:48,498 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:48,504 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:38:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:38:48,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:48,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:38:48,643 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:48,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:48,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183358866] [2024-09-12 18:38:48,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:48,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795302544] [2024-09-12 18:38:48,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795302544] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:48,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:48,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:38:48,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526561944] [2024-09-12 18:38:48,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:48,646 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:48,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:48,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:48,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:48,649 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:38:48,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:48,833 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2024-09-12 18:38:48,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:38:48,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-09-12 18:38:48,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:48,835 INFO L225 Difference]: With dead ends: 130 [2024-09-12 18:38:48,835 INFO L226 Difference]: Without dead ends: 128 [2024-09-12 18:38:48,835 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:38:48,837 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 20 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:48,837 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 363 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-09-12 18:38:48,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 109. [2024-09-12 18:38:48,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 59 states have (on average 1.6610169491525424) internal successors, (98), 95 states have internal predecessors, (98), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:38:48,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2024-09-12 18:38:48,862 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 21 [2024-09-12 18:38:48,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:48,862 INFO L474 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2024-09-12 18:38:48,862 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:38:48,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:48,863 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2024-09-12 18:38:48,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 18:38:48,864 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:48,864 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:48,890 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:38:49,064 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:49,065 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:49,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:49,065 INFO L85 PathProgramCache]: Analyzing trace with hash 312813782, now seen corresponding path program 1 times [2024-09-12 18:38:49,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:49,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562329322] [2024-09-12 18:38:49,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:49,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:49,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232623173] [2024-09-12 18:38:49,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:49,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:49,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:49,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:49,092 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:38:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:49,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:38:49,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:38:49,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:49,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:49,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562329322] [2024-09-12 18:38:49,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:49,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232623173] [2024-09-12 18:38:49,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232623173] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:49,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:49,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:38:49,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121297957] [2024-09-12 18:38:49,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:49,151 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:38:49,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:49,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:38:49,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:38:49,151 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:38:49,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:49,278 INFO L93 Difference]: Finished difference Result 171 states and 196 transitions. [2024-09-12 18:38:49,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:38:49,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 18:38:49,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:49,280 INFO L225 Difference]: With dead ends: 171 [2024-09-12 18:38:49,280 INFO L226 Difference]: Without dead ends: 165 [2024-09-12 18:38:49,281 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:38:49,282 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 52 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:49,282 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 160 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:49,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-09-12 18:38:49,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 142. [2024-09-12 18:38:49,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 122 states have internal predecessors, (147), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:49,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 177 transitions. [2024-09-12 18:38:49,297 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 177 transitions. Word has length 23 [2024-09-12 18:38:49,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:49,298 INFO L474 AbstractCegarLoop]: Abstraction has 142 states and 177 transitions. [2024-09-12 18:38:49,298 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:38:49,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:49,299 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 177 transitions. [2024-09-12 18:38:49,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 18:38:49,299 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:49,299 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:49,316 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 18:38:49,500 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:49,500 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:49,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:49,501 INFO L85 PathProgramCache]: Analyzing trace with hash -33664040, now seen corresponding path program 1 times [2024-09-12 18:38:49,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:49,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930272595] [2024-09-12 18:38:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:49,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:49,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558722913] [2024-09-12 18:38:49,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:49,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:49,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:49,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:49,530 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:38:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:49,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:38:49,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:49,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:38:49,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:49,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:49,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930272595] [2024-09-12 18:38:49,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:49,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558722913] [2024-09-12 18:38:49,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558722913] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:49,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:49,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:49,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156053401] [2024-09-12 18:38:49,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:49,678 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:38:49,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:49,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:38:49,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:49,679 INFO L87 Difference]: Start difference. First operand 142 states and 177 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:38:49,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:49,887 INFO L93 Difference]: Finished difference Result 164 states and 186 transitions. [2024-09-12 18:38:49,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:38:49,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2024-09-12 18:38:49,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:49,889 INFO L225 Difference]: With dead ends: 164 [2024-09-12 18:38:49,889 INFO L226 Difference]: Without dead ends: 161 [2024-09-12 18:38:49,890 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:49,898 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 185 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:49,899 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 169 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:49,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-09-12 18:38:49,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 143. [2024-09-12 18:38:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 88 states have (on average 1.6590909090909092) internal successors, (146), 123 states have internal predecessors, (146), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 176 transitions. [2024-09-12 18:38:49,941 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 176 transitions. Word has length 25 [2024-09-12 18:38:49,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:49,944 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 176 transitions. [2024-09-12 18:38:49,944 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:38:49,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:49,944 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 176 transitions. [2024-09-12 18:38:49,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 18:38:49,945 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:49,945 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:49,961 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:38:50,145 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:50,146 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:50,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:50,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1043585168, now seen corresponding path program 1 times [2024-09-12 18:38:50,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:50,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534908139] [2024-09-12 18:38:50,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:50,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:50,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191560877] [2024-09-12 18:38:50,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:50,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:50,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:50,164 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:50,166 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:38:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:50,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:38:50,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:50,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:38:50,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:50,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534908139] [2024-09-12 18:38:50,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191560877] [2024-09-12 18:38:50,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191560877] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:50,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:50,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:50,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752373404] [2024-09-12 18:38:50,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:50,302 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:38:50,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:50,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:38:50,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:50,303 INFO L87 Difference]: Start difference. First operand 143 states and 176 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:38:50,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:50,567 INFO L93 Difference]: Finished difference Result 164 states and 183 transitions. [2024-09-12 18:38:50,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:38:50,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2024-09-12 18:38:50,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:50,570 INFO L225 Difference]: With dead ends: 164 [2024-09-12 18:38:50,570 INFO L226 Difference]: Without dead ends: 161 [2024-09-12 18:38:50,570 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:50,571 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 181 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:50,571 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 172 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:50,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-09-12 18:38:50,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 144. [2024-09-12 18:38:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 89 states have (on average 1.6292134831460674) internal successors, (145), 124 states have internal predecessors, (145), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:50,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 175 transitions. [2024-09-12 18:38:50,597 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 175 transitions. Word has length 26 [2024-09-12 18:38:50,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:50,598 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 175 transitions. [2024-09-12 18:38:50,598 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:38:50,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:50,599 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 175 transitions. [2024-09-12 18:38:50,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 18:38:50,599 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:50,599 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:50,617 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:38:50,803 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 18:38:50,804 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:50,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:50,804 INFO L85 PathProgramCache]: Analyzing trace with hash 668877472, now seen corresponding path program 1 times [2024-09-12 18:38:50,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:50,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441610344] [2024-09-12 18:38:50,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:50,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:50,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762961507] [2024-09-12 18:38:50,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:50,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:50,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:50,820 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:50,821 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:38:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:50,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:38:50,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:38:50,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:50,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:50,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441610344] [2024-09-12 18:38:50,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:50,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762961507] [2024-09-12 18:38:50,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762961507] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:50,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:50,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:38:50,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481285849] [2024-09-12 18:38:50,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:50,955 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:50,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:50,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:50,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:50,956 INFO L87 Difference]: Start difference. First operand 144 states and 175 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:38:51,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:51,194 INFO L93 Difference]: Finished difference Result 167 states and 185 transitions. [2024-09-12 18:38:51,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:38:51,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-09-12 18:38:51,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:51,196 INFO L225 Difference]: With dead ends: 167 [2024-09-12 18:38:51,196 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 18:38:51,197 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:38:51,197 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 47 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:51,197 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 312 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:51,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 18:38:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 144. [2024-09-12 18:38:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 88 states have (on average 1.625) internal successors, (143), 123 states have internal predecessors, (143), 16 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:51,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 173 transitions. [2024-09-12 18:38:51,222 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 173 transitions. Word has length 30 [2024-09-12 18:38:51,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:51,223 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 173 transitions. [2024-09-12 18:38:51,223 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:38:51,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 173 transitions. [2024-09-12 18:38:51,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 18:38:51,225 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:51,225 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] [2024-09-12 18:38:51,242 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 18:38:51,425 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:51,426 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:51,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:51,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1127278244, now seen corresponding path program 1 times [2024-09-12 18:38:51,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:51,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687499811] [2024-09-12 18:38:51,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:51,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:38:51,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:51,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687499811] [2024-09-12 18:38:51,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687499811] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:51,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:51,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:38:51,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743786598] [2024-09-12 18:38:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:51,633 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:38:51,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:51,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:38:51,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:38:51,634 INFO L87 Difference]: Start difference. First operand 144 states and 173 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:38:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:51,831 INFO L93 Difference]: Finished difference Result 177 states and 191 transitions. [2024-09-12 18:38:51,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:38:51,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2024-09-12 18:38:51,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:51,833 INFO L225 Difference]: With dead ends: 177 [2024-09-12 18:38:51,834 INFO L226 Difference]: Without dead ends: 176 [2024-09-12 18:38:51,834 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:38:51,834 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 82 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:51,835 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 466 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:51,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-09-12 18:38:51,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 148. [2024-09-12 18:38:51,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 91 states have (on average 1.6043956043956045) internal successors, (146), 126 states have internal predecessors, (146), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:51,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 176 transitions. [2024-09-12 18:38:51,855 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 176 transitions. Word has length 34 [2024-09-12 18:38:51,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:51,855 INFO L474 AbstractCegarLoop]: Abstraction has 148 states and 176 transitions. [2024-09-12 18:38:51,856 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:38:51,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:51,856 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 176 transitions. [2024-09-12 18:38:51,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:38:51,857 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:51,857 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 18:38:51,857 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 18:38:51,857 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:51,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:51,858 INFO L85 PathProgramCache]: Analyzing trace with hash -585887109, now seen corresponding path program 1 times [2024-09-12 18:38:51,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:51,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926993660] [2024-09-12 18:38:51,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:51,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,967 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:38:51,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:51,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926993660] [2024-09-12 18:38:51,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926993660] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:51,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:51,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:38:51,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199493265] [2024-09-12 18:38:51,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:51,968 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:38:51,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:51,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:38:51,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:38:51,969 INFO L87 Difference]: Start difference. First operand 148 states and 176 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:38:52,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:52,148 INFO L93 Difference]: Finished difference Result 243 states and 281 transitions. [2024-09-12 18:38:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:38:52,149 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 35 [2024-09-12 18:38:52,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:52,151 INFO L225 Difference]: With dead ends: 243 [2024-09-12 18:38:52,151 INFO L226 Difference]: Without dead ends: 156 [2024-09-12 18:38:52,152 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:38:52,153 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 32 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:52,153 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 406 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:52,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-12 18:38:52,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-09-12 18:38:52,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 98 states have (on average 1.5612244897959184) internal successors, (153), 133 states have internal predecessors, (153), 16 states have call successors, (16), 8 states have call predecessors, (16), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:52,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2024-09-12 18:38:52,183 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 35 [2024-09-12 18:38:52,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:52,184 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2024-09-12 18:38:52,184 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:38:52,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:52,185 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2024-09-12 18:38:52,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:38:52,188 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:52,188 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:52,188 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 18:38:52,189 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:52,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:52,189 INFO L85 PathProgramCache]: Analyzing trace with hash -396793027, now seen corresponding path program 1 times [2024-09-12 18:38:52,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:52,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904800093] [2024-09-12 18:38:52,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:52,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:52,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770502919] [2024-09-12 18:38:52,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:52,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:52,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:52,203 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:52,205 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:38:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:38:52,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:52,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:38:52,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:52,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:52,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904800093] [2024-09-12 18:38:52,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:52,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770502919] [2024-09-12 18:38:52,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770502919] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:52,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:52,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562078382] [2024-09-12 18:38:52,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:52,315 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:38:52,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:52,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:38:52,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:52,316 INFO L87 Difference]: Start difference. First operand 156 states and 183 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:38:52,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:52,577 INFO L93 Difference]: Finished difference Result 233 states and 304 transitions. [2024-09-12 18:38:52,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:38:52,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 37 [2024-09-12 18:38:52,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:52,579 INFO L225 Difference]: With dead ends: 233 [2024-09-12 18:38:52,579 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 18:38:52,580 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:52,580 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 126 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:52,581 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 117 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:52,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 18:38:52,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 207. [2024-09-12 18:38:52,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 141 states have (on average 1.5886524822695036) internal successors, (224), 176 states have internal predecessors, (224), 24 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:38:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 270 transitions. [2024-09-12 18:38:52,619 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 270 transitions. Word has length 37 [2024-09-12 18:38:52,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:52,620 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 270 transitions. [2024-09-12 18:38:52,620 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:38:52,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:52,620 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 270 transitions. [2024-09-12 18:38:52,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:38:52,621 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:52,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:52,638 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:38:52,825 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:52,826 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:52,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:52,826 INFO L85 PathProgramCache]: Analyzing trace with hash 584318147, now seen corresponding path program 1 times [2024-09-12 18:38:52,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:52,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169570689] [2024-09-12 18:38:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:52,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:52,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1684563778] [2024-09-12 18:38:52,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:52,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:52,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:52,849 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:52,850 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:38:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:38:52,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:38:52,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:52,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169570689] [2024-09-12 18:38:52,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684563778] [2024-09-12 18:38:52,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684563778] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:52,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:52,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:52,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724479701] [2024-09-12 18:38:52,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:52,949 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:38:52,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:52,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:38:52,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:52,950 INFO L87 Difference]: Start difference. First operand 207 states and 270 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:38:53,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:53,106 INFO L93 Difference]: Finished difference Result 231 states and 295 transitions. [2024-09-12 18:38:53,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:38:53,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (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 38 [2024-09-12 18:38:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:53,108 INFO L225 Difference]: With dead ends: 231 [2024-09-12 18:38:53,108 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 18:38:53,108 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:53,109 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 124 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:53,109 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 117 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:53,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 18:38:53,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 208. [2024-09-12 18:38:53,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 142 states have (on average 1.556338028169014) internal successors, (221), 177 states have internal predecessors, (221), 24 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:38:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 267 transitions. [2024-09-12 18:38:53,156 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 267 transitions. Word has length 38 [2024-09-12 18:38:53,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:53,156 INFO L474 AbstractCegarLoop]: Abstraction has 208 states and 267 transitions. [2024-09-12 18:38:53,157 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:38:53,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:53,157 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 267 transitions. [2024-09-12 18:38:53,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:38:53,158 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:53,158 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:53,176 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:38:53,362 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:53,363 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:53,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:53,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1803951921, now seen corresponding path program 1 times [2024-09-12 18:38:53,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:53,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15831415] [2024-09-12 18:38:53,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:53,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:53,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739417808] [2024-09-12 18:38:53,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:53,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:53,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:53,376 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:53,377 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:38:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:53,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:38:53,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:53,463 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:38:53,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:53,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:53,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15831415] [2024-09-12 18:38:53,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:53,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739417808] [2024-09-12 18:38:53,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739417808] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:53,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:53,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:38:53,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163723385] [2024-09-12 18:38:53,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:53,465 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:53,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:53,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:53,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:53,466 INFO L87 Difference]: Start difference. First operand 208 states and 267 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:38:53,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:53,881 INFO L93 Difference]: Finished difference Result 234 states and 299 transitions. [2024-09-12 18:38:53,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:38:53,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2024-09-12 18:38:53,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:53,884 INFO L225 Difference]: With dead ends: 234 [2024-09-12 18:38:53,884 INFO L226 Difference]: Without dead ends: 232 [2024-09-12 18:38:53,885 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:38:53,886 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 41 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:53,886 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 239 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:38:53,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-09-12 18:38:53,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 217. [2024-09-12 18:38:53,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 148 states have (on average 1.5337837837837838) internal successors, (227), 184 states have internal predecessors, (227), 25 states have call successors, (25), 10 states have call predecessors, (25), 9 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:38:53,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 275 transitions. [2024-09-12 18:38:53,919 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 275 transitions. Word has length 42 [2024-09-12 18:38:53,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:53,919 INFO L474 AbstractCegarLoop]: Abstraction has 217 states and 275 transitions. [2024-09-12 18:38:53,919 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:38:53,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:53,920 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 275 transitions. [2024-09-12 18:38:53,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:38:53,920 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:53,921 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:53,937 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:38:54,124 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:38:54,125 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:54,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:54,125 INFO L85 PathProgramCache]: Analyzing trace with hash 157098285, now seen corresponding path program 1 times [2024-09-12 18:38:54,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:54,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495452543] [2024-09-12 18:38:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:54,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:38:54,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:54,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495452543] [2024-09-12 18:38:54,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495452543] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:54,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:54,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-09-12 18:38:54,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133726992] [2024-09-12 18:38:54,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:54,374 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:38:54,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:54,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:38:54,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:38:54,375 INFO L87 Difference]: Start difference. First operand 217 states and 275 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:38:54,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:54,730 INFO L93 Difference]: Finished difference Result 227 states and 284 transitions. [2024-09-12 18:38:54,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:38:54,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 56 [2024-09-12 18:38:54,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:54,733 INFO L225 Difference]: With dead ends: 227 [2024-09-12 18:38:54,733 INFO L226 Difference]: Without dead ends: 224 [2024-09-12 18:38:54,734 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:38:54,734 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 92 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:54,735 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 265 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:38:54,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-09-12 18:38:54,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-09-12 18:38:54,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 154 states have (on average 1.4870129870129871) internal successors, (229), 189 states have internal predecessors, (229), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:38:54,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 277 transitions. [2024-09-12 18:38:54,766 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 277 transitions. Word has length 56 [2024-09-12 18:38:54,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:54,767 INFO L474 AbstractCegarLoop]: Abstraction has 224 states and 277 transitions. [2024-09-12 18:38:54,767 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:38:54,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:54,767 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 277 transitions. [2024-09-12 18:38:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:38:54,768 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:54,768 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:54,769 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:38:54,769 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:54,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:54,769 INFO L85 PathProgramCache]: Analyzing trace with hash 647755168, now seen corresponding path program 1 times [2024-09-12 18:38:54,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:54,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261038108] [2024-09-12 18:38:54,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:54,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:54,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:54,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261038108] [2024-09-12 18:38:54,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261038108] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:54,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:54,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:38:54,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297128447] [2024-09-12 18:38:54,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:54,848 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:54,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:54,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:54,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:54,849 INFO L87 Difference]: Start difference. First operand 224 states and 277 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:55,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:55,408 INFO L93 Difference]: Finished difference Result 260 states and 306 transitions. [2024-09-12 18:38:55,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:38:55,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-09-12 18:38:55,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:55,410 INFO L225 Difference]: With dead ends: 260 [2024-09-12 18:38:55,411 INFO L226 Difference]: Without dead ends: 258 [2024-09-12 18:38:55,411 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:38:55,412 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 156 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:55,412 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 111 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:38:55,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-09-12 18:38:55,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 226. [2024-09-12 18:38:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 156 states have (on average 1.4679487179487178) internal successors, (229), 191 states have internal predecessors, (229), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:38:55,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 277 transitions. [2024-09-12 18:38:55,463 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 277 transitions. Word has length 58 [2024-09-12 18:38:55,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:55,463 INFO L474 AbstractCegarLoop]: Abstraction has 226 states and 277 transitions. [2024-09-12 18:38:55,464 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:55,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 277 transitions. [2024-09-12 18:38:55,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:38:55,468 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:55,468 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:55,468 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:38:55,468 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:55,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:55,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1394426161, now seen corresponding path program 1 times [2024-09-12 18:38:55,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:55,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745279845] [2024-09-12 18:38:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:55,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,562 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:55,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:55,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745279845] [2024-09-12 18:38:55,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745279845] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:55,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:55,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:38:55,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094863551] [2024-09-12 18:38:55,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:55,566 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:55,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:55,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:55,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:55,567 INFO L87 Difference]: Start difference. First operand 226 states and 277 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:55,839 INFO L93 Difference]: Finished difference Result 260 states and 302 transitions. [2024-09-12 18:38:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:38:55,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2024-09-12 18:38:55,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:55,842 INFO L225 Difference]: With dead ends: 260 [2024-09-12 18:38:55,842 INFO L226 Difference]: Without dead ends: 258 [2024-09-12 18:38:55,843 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:38:55,843 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 153 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:55,844 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 115 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:55,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-09-12 18:38:55,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 228. [2024-09-12 18:38:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 158 states have (on average 1.4493670886075949) internal successors, (229), 193 states have internal predecessors, (229), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:38:55,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2024-09-12 18:38:55,881 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 59 [2024-09-12 18:38:55,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:55,882 INFO L474 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2024-09-12 18:38:55,882 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:55,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:55,883 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2024-09-12 18:38:55,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 18:38:55,883 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:55,883 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:55,883 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:38:55,883 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:55,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:55,884 INFO L85 PathProgramCache]: Analyzing trace with hash -13740697, now seen corresponding path program 1 times [2024-09-12 18:38:55,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:55,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937667681] [2024-09-12 18:38:55,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:55,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:55,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:55,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937667681] [2024-09-12 18:38:55,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937667681] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:55,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:55,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:55,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212766528] [2024-09-12 18:38:55,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:55,956 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:38:55,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:55,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:38:55,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:55,957 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:38:56,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:56,101 INFO L93 Difference]: Finished difference Result 234 states and 277 transitions. [2024-09-12 18:38:56,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:38:56,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2024-09-12 18:38:56,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:56,103 INFO L225 Difference]: With dead ends: 234 [2024-09-12 18:38:56,103 INFO L226 Difference]: Without dead ends: 233 [2024-09-12 18:38:56,103 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:56,104 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 27 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:56,104 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 206 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:56,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-09-12 18:38:56,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2024-09-12 18:38:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 158 states have (on average 1.4430379746835442) internal successors, (228), 193 states have internal predecessors, (228), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:38:56,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 276 transitions. [2024-09-12 18:38:56,140 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 276 transitions. Word has length 61 [2024-09-12 18:38:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:56,142 INFO L474 AbstractCegarLoop]: Abstraction has 228 states and 276 transitions. [2024-09-12 18:38:56,142 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:38:56,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 276 transitions. [2024-09-12 18:38:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:38:56,144 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:56,144 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:56,144 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:38:56,144 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:56,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:56,145 INFO L85 PathProgramCache]: Analyzing trace with hash -425961467, now seen corresponding path program 1 times [2024-09-12 18:38:56,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:56,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448984640] [2024-09-12 18:38:56,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:56,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,236 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:56,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:56,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448984640] [2024-09-12 18:38:56,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448984640] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:56,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:56,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:38:56,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316814962] [2024-09-12 18:38:56,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:56,237 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:38:56,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:56,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:38:56,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:38:56,238 INFO L87 Difference]: Start difference. First operand 228 states and 276 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:56,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:56,479 INFO L93 Difference]: Finished difference Result 341 states and 429 transitions. [2024-09-12 18:38:56,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:38:56,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-09-12 18:38:56,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:56,482 INFO L225 Difference]: With dead ends: 341 [2024-09-12 18:38:56,482 INFO L226 Difference]: Without dead ends: 340 [2024-09-12 18:38:56,482 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:38:56,483 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 216 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:56,483 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 272 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:56,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-09-12 18:38:56,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 306. [2024-09-12 18:38:56,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 225 states have (on average 1.5155555555555555) internal successors, (341), 261 states have internal predecessors, (341), 36 states have call successors, (36), 12 states have call predecessors, (36), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:38:56,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 411 transitions. [2024-09-12 18:38:56,534 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 411 transitions. Word has length 62 [2024-09-12 18:38:56,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:56,534 INFO L474 AbstractCegarLoop]: Abstraction has 306 states and 411 transitions. [2024-09-12 18:38:56,535 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:56,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:56,535 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 411 transitions. [2024-09-12 18:38:56,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:38:56,535 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:56,536 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:56,536 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 18:38:56,541 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:56,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:56,541 INFO L85 PathProgramCache]: Analyzing trace with hash -425960185, now seen corresponding path program 1 times [2024-09-12 18:38:56,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:56,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045853064] [2024-09-12 18:38:56,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:56,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,659 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:56,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:56,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045853064] [2024-09-12 18:38:56,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045853064] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:56,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:56,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:38:56,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81970904] [2024-09-12 18:38:56,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:56,660 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:38:56,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:56,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:38:56,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:38:56,661 INFO L87 Difference]: Start difference. First operand 306 states and 411 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:38:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:57,309 INFO L93 Difference]: Finished difference Result 417 states and 564 transitions. [2024-09-12 18:38:57,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:38:57,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 62 [2024-09-12 18:38:57,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:57,314 INFO L225 Difference]: With dead ends: 417 [2024-09-12 18:38:57,314 INFO L226 Difference]: Without dead ends: 416 [2024-09-12 18:38:57,314 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:38:57,315 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 316 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:57,316 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 349 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:38:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-09-12 18:38:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 376. [2024-09-12 18:38:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 285 states have (on average 1.5228070175438597) internal successors, (434), 321 states have internal predecessors, (434), 46 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:38:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 524 transitions. [2024-09-12 18:38:57,381 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 524 transitions. Word has length 62 [2024-09-12 18:38:57,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:57,381 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 524 transitions. [2024-09-12 18:38:57,381 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:38:57,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 524 transitions. [2024-09-12 18:38:57,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:38:57,383 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:57,383 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:57,383 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 18:38:57,383 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:57,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:57,384 INFO L85 PathProgramCache]: Analyzing trace with hash -319903447, now seen corresponding path program 1 times [2024-09-12 18:38:57,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:57,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385798425] [2024-09-12 18:38:57,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:57,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:57,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:57,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:57,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:57,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:57,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:57,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:57,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:57,480 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:57,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:57,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385798425] [2024-09-12 18:38:57,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385798425] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:57,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:57,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:38:57,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182209261] [2024-09-12 18:38:57,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:57,482 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:57,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:57,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:57,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:57,483 INFO L87 Difference]: Start difference. First operand 376 states and 524 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:57,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:57,865 INFO L93 Difference]: Finished difference Result 403 states and 545 transitions. [2024-09-12 18:38:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:38:57,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2024-09-12 18:38:57,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:57,869 INFO L225 Difference]: With dead ends: 403 [2024-09-12 18:38:57,869 INFO L226 Difference]: Without dead ends: 401 [2024-09-12 18:38:57,870 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 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 18:38:57,870 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 59 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:57,871 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 241 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:38:57,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-09-12 18:38:57,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 380. [2024-09-12 18:38:57,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 289 states have (on average 1.5155709342560553) internal successors, (438), 325 states have internal predecessors, (438), 46 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:38:57,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 528 transitions. [2024-09-12 18:38:57,945 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 528 transitions. Word has length 63 [2024-09-12 18:38:57,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:57,947 INFO L474 AbstractCegarLoop]: Abstraction has 380 states and 528 transitions. [2024-09-12 18:38:57,947 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:57,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:57,948 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 528 transitions. [2024-09-12 18:38:57,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:38:57,949 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:57,949 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:57,950 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 18:38:57,950 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:57,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:57,950 INFO L85 PathProgramCache]: Analyzing trace with hash 288980233, now seen corresponding path program 1 times [2024-09-12 18:38:57,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:57,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823048700] [2024-09-12 18:38:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:57,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:58,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:58,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823048700] [2024-09-12 18:38:58,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823048700] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:58,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367826261] [2024-09-12 18:38:58,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:58,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:58,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:58,094 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:58,096 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:38:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:38:58,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:58,244 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:38:58,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:58,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367826261] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:58,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:38:58,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2024-09-12 18:38:58,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542049496] [2024-09-12 18:38:58,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:58,245 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:38:58,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:58,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:38:58,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:38:58,245 INFO L87 Difference]: Start difference. First operand 380 states and 528 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:38:58,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:58,431 INFO L93 Difference]: Finished difference Result 380 states and 528 transitions. [2024-09-12 18:38:58,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:38:58,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-09-12 18:38:58,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:58,434 INFO L225 Difference]: With dead ends: 380 [2024-09-12 18:38:58,434 INFO L226 Difference]: Without dead ends: 378 [2024-09-12 18:38:58,434 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:38:58,435 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 76 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:58,435 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 443 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:58,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-09-12 18:38:58,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2024-09-12 18:38:58,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 289 states have (on average 1.4740484429065743) internal successors, (426), 323 states have internal predecessors, (426), 46 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:38:58,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 516 transitions. [2024-09-12 18:38:58,506 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 516 transitions. Word has length 66 [2024-09-12 18:38:58,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:58,506 INFO L474 AbstractCegarLoop]: Abstraction has 378 states and 516 transitions. [2024-09-12 18:38:58,506 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:38:58,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:58,507 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 516 transitions. [2024-09-12 18:38:58,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 18:38:58,507 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:58,507 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:58,524 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 18:38:58,711 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 18:38:58,711 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:58,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:58,712 INFO L85 PathProgramCache]: Analyzing trace with hash 368452685, now seen corresponding path program 1 times [2024-09-12 18:38:58,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:58,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402888068] [2024-09-12 18:38:58,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:58,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,835 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:58,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:58,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402888068] [2024-09-12 18:38:58,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402888068] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:58,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722871356] [2024-09-12 18:38:58,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:58,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:58,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:58,837 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:58,838 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:38:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:58,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:38:58,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:38:58,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:38:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:59,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722871356] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:38:59,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:38:59,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 17 [2024-09-12 18:38:59,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296407377] [2024-09-12 18:38:59,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:38:59,108 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:38:59,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:59,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:38:59,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:38:59,109 INFO L87 Difference]: Start difference. First operand 378 states and 516 transitions. Second operand has 18 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 8 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 7 states have call predecessors, (21), 8 states have call successors, (21) [2024-09-12 18:38:59,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:59,515 INFO L93 Difference]: Finished difference Result 575 states and 732 transitions. [2024-09-12 18:38:59,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:38:59,517 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 8 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 7 states have call predecessors, (21), 8 states have call successors, (21) Word has length 67 [2024-09-12 18:38:59,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:59,520 INFO L225 Difference]: With dead ends: 575 [2024-09-12 18:38:59,520 INFO L226 Difference]: Without dead ends: 558 [2024-09-12 18:38:59,521 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:38:59,521 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 207 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:59,521 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 720 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:59,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-09-12 18:38:59,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 510. [2024-09-12 18:38:59,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 399 states have (on average 1.443609022556391) internal successors, (576), 436 states have internal predecessors, (576), 57 states have call successors, (57), 23 states have call predecessors, (57), 22 states have return successors, (54), 50 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 18:38:59,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 687 transitions. [2024-09-12 18:38:59,614 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 687 transitions. Word has length 67 [2024-09-12 18:38:59,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:59,614 INFO L474 AbstractCegarLoop]: Abstraction has 510 states and 687 transitions. [2024-09-12 18:38:59,614 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 8 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 7 states have call predecessors, (21), 8 states have call successors, (21) [2024-09-12 18:38:59,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:59,615 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 687 transitions. [2024-09-12 18:38:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:38:59,615 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:59,615 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:59,632 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:38:59,819 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:59,820 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:59,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:59,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1858588721, now seen corresponding path program 1 times [2024-09-12 18:38:59,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:59,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869106280] [2024-09-12 18:38:59,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:59,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:59,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:59,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:59,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:59,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:59,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:59,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:59,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:59,984 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:38:59,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:59,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869106280] [2024-09-12 18:38:59,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869106280] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:59,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216797033] [2024-09-12 18:38:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:59,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:59,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:59,986 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:38:59,987 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 18:39:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:00,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:39:00,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:00,169 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:39:00,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:00,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216797033] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:00,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:39:00,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 9] total 13 [2024-09-12 18:39:00,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427599309] [2024-09-12 18:39:00,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:00,247 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:00,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:00,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:00,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:39:00,248 INFO L87 Difference]: Start difference. First operand 510 states and 687 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:39:00,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:00,917 INFO L93 Difference]: Finished difference Result 539 states and 729 transitions. [2024-09-12 18:39:00,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:39:00,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-09-12 18:39:00,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:00,920 INFO L225 Difference]: With dead ends: 539 [2024-09-12 18:39:00,920 INFO L226 Difference]: Without dead ends: 537 [2024-09-12 18:39:00,921 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:00,921 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 34 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:00,921 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 257 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:00,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-09-12 18:39:01,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 518. [2024-09-12 18:39:01,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 405 states have (on average 1.434567901234568) internal successors, (581), 442 states have internal predecessors, (581), 57 states have call successors, (57), 25 states have call predecessors, (57), 24 states have return successors, (54), 50 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 18:39:01,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 692 transitions. [2024-09-12 18:39:01,057 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 692 transitions. Word has length 68 [2024-09-12 18:39:01,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:01,058 INFO L474 AbstractCegarLoop]: Abstraction has 518 states and 692 transitions. [2024-09-12 18:39:01,058 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:39:01,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:01,058 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 692 transitions. [2024-09-12 18:39:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:39:01,060 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:01,060 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:01,076 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:01,264 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:39:01,265 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:01,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:01,265 INFO L85 PathProgramCache]: Analyzing trace with hash 860044850, now seen corresponding path program 1 times [2024-09-12 18:39:01,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:01,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547614576] [2024-09-12 18:39:01,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:01,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:01,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482243053] [2024-09-12 18:39:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:01,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:01,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:01,284 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:01,284 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 18:39:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:39:01,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:01,618 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:01,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:01,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:01,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547614576] [2024-09-12 18:39:01,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:01,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482243053] [2024-09-12 18:39:01,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482243053] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:01,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:01,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:39:01,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480979648] [2024-09-12 18:39:01,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:01,619 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:01,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:01,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:01,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:39:01,619 INFO L87 Difference]: Start difference. First operand 518 states and 692 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:02,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:02,183 INFO L93 Difference]: Finished difference Result 715 states and 976 transitions. [2024-09-12 18:39:02,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:39:02,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 76 [2024-09-12 18:39:02,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:02,188 INFO L225 Difference]: With dead ends: 715 [2024-09-12 18:39:02,188 INFO L226 Difference]: Without dead ends: 706 [2024-09-12 18:39:02,188 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:02,189 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 297 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:02,189 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 245 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:02,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-09-12 18:39:02,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 675. [2024-09-12 18:39:02,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 540 states have (on average 1.4148148148148147) internal successors, (764), 579 states have internal predecessors, (764), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (76), 70 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 18:39:02,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 919 transitions. [2024-09-12 18:39:02,333 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 919 transitions. Word has length 76 [2024-09-12 18:39:02,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:02,333 INFO L474 AbstractCegarLoop]: Abstraction has 675 states and 919 transitions. [2024-09-12 18:39:02,334 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:02,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:02,334 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 919 transitions. [2024-09-12 18:39:02,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 18:39:02,334 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:02,334 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:02,350 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:02,535 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:02,536 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:02,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:02,536 INFO L85 PathProgramCache]: Analyzing trace with hash 891586642, now seen corresponding path program 1 times [2024-09-12 18:39:02,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:02,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959014448] [2024-09-12 18:39:02,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:02,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:02,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540867723] [2024-09-12 18:39:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:02,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:02,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:02,552 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:02,553 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 18:39:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:39:02,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:02,876 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:02,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:03,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:03,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959014448] [2024-09-12 18:39:03,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:03,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540867723] [2024-09-12 18:39:03,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540867723] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:03,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:03,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:39:03,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362095473] [2024-09-12 18:39:03,712 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:03,713 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:03,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:03,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:03,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:03,713 INFO L87 Difference]: Start difference. First operand 675 states and 919 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:04,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:04,248 INFO L93 Difference]: Finished difference Result 740 states and 993 transitions. [2024-09-12 18:39:04,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:04,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 77 [2024-09-12 18:39:04,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:04,252 INFO L225 Difference]: With dead ends: 740 [2024-09-12 18:39:04,253 INFO L226 Difference]: Without dead ends: 737 [2024-09-12 18:39:04,254 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:04,254 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 148 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:04,257 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 337 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:04,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-09-12 18:39:04,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 704. [2024-09-12 18:39:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 565 states have (on average 1.4123893805309735) internal successors, (798), 603 states have internal predecessors, (798), 83 states have call successors, (83), 25 states have call predecessors, (83), 24 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2024-09-12 18:39:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 961 transitions. [2024-09-12 18:39:04,425 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 961 transitions. Word has length 77 [2024-09-12 18:39:04,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:04,426 INFO L474 AbstractCegarLoop]: Abstraction has 704 states and 961 transitions. [2024-09-12 18:39:04,426 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:04,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 961 transitions. [2024-09-12 18:39:04,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:39:04,427 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:04,427 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:04,444 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:04,631 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:39:04,632 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:04,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:04,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1869382196, now seen corresponding path program 1 times [2024-09-12 18:39:04,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:04,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841578027] [2024-09-12 18:39:04,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:04,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:39:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,717 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:04,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:04,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841578027] [2024-09-12 18:39:04,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841578027] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:04,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:04,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:04,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147499095] [2024-09-12 18:39:04,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:04,718 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:04,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:04,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:04,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:04,719 INFO L87 Difference]: Start difference. First operand 704 states and 961 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:39:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:06,239 INFO L93 Difference]: Finished difference Result 978 states and 1363 transitions. [2024-09-12 18:39:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:39:06,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2024-09-12 18:39:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:06,244 INFO L225 Difference]: With dead ends: 978 [2024-09-12 18:39:06,244 INFO L226 Difference]: Without dead ends: 975 [2024-09-12 18:39:06,245 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:06,245 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 171 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:06,245 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 291 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-09-12 18:39:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-09-12 18:39:06,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 719. [2024-09-12 18:39:06,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 581 states have (on average 1.395869191049914) internal successors, (811), 614 states have internal predecessors, (811), 83 states have call successors, (83), 25 states have call predecessors, (83), 24 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2024-09-12 18:39:06,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 974 transitions. [2024-09-12 18:39:06,426 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 974 transitions. Word has length 78 [2024-09-12 18:39:06,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:06,428 INFO L474 AbstractCegarLoop]: Abstraction has 719 states and 974 transitions. [2024-09-12 18:39:06,428 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:39:06,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 974 transitions. [2024-09-12 18:39:06,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:39:06,431 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:06,431 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:06,431 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-09-12 18:39:06,431 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:06,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:06,431 INFO L85 PathProgramCache]: Analyzing trace with hash -22819434, now seen corresponding path program 1 times [2024-09-12 18:39:06,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:06,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195139677] [2024-09-12 18:39:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:06,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,569 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:06,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:06,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195139677] [2024-09-12 18:39:06,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195139677] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:06,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196829284] [2024-09-12 18:39:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:06,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:06,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:06,572 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:06,574 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 18:39:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:06,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:39:06,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:06,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196829284] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:06,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 17 [2024-09-12 18:39:06,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373318503] [2024-09-12 18:39:06,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:06,838 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:39:06,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:06,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:39:06,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:39:06,839 INFO L87 Difference]: Start difference. First operand 719 states and 974 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 7 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2024-09-12 18:39:07,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:07,338 INFO L93 Difference]: Finished difference Result 1065 states and 1400 transitions. [2024-09-12 18:39:07,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 18:39:07,339 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 7 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) Word has length 78 [2024-09-12 18:39:07,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:07,343 INFO L225 Difference]: With dead ends: 1065 [2024-09-12 18:39:07,344 INFO L226 Difference]: Without dead ends: 796 [2024-09-12 18:39:07,345 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 166 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=785, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:39:07,345 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 199 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:07,346 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 802 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:07,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-09-12 18:39:07,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 754. [2024-09-12 18:39:07,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 609 states have (on average 1.3908045977011494) internal successors, (847), 641 states have internal predecessors, (847), 87 states have call successors, (87), 28 states have call predecessors, (87), 27 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-09-12 18:39:07,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1018 transitions. [2024-09-12 18:39:07,525 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1018 transitions. Word has length 78 [2024-09-12 18:39:07,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:07,525 INFO L474 AbstractCegarLoop]: Abstraction has 754 states and 1018 transitions. [2024-09-12 18:39:07,525 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 7 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2024-09-12 18:39:07,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:07,526 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1018 transitions. [2024-09-12 18:39:07,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:39:07,526 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:07,526 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:07,545 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 18:39:07,727 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:39:07,727 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:07,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash -22819416, now seen corresponding path program 1 times [2024-09-12 18:39:07,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:07,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374565671] [2024-09-12 18:39:07,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:07,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:07,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1121049581] [2024-09-12 18:39:07,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:07,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:07,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:07,750 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:07,752 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 18:39:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:07,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:07,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:07,945 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:07,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:07,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:07,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374565671] [2024-09-12 18:39:07,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:07,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121049581] [2024-09-12 18:39:07,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121049581] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:07,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:07,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:39:07,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51871103] [2024-09-12 18:39:07,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:07,949 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:39:07,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:07,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:39:07,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:07,950 INFO L87 Difference]: Start difference. First operand 754 states and 1018 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:08,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:08,317 INFO L93 Difference]: Finished difference Result 783 states and 1058 transitions. [2024-09-12 18:39:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:08,317 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 78 [2024-09-12 18:39:08,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:08,321 INFO L225 Difference]: With dead ends: 783 [2024-09-12 18:39:08,321 INFO L226 Difference]: Without dead ends: 779 [2024-09-12 18:39:08,321 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:08,322 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 135 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:08,322 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 370 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:08,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-09-12 18:39:08,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 750. [2024-09-12 18:39:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 609 states have (on average 1.3628899835796386) internal successors, (830), 637 states have internal predecessors, (830), 87 states have call successors, (87), 28 states have call predecessors, (87), 27 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-09-12 18:39:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1001 transitions. [2024-09-12 18:39:08,511 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1001 transitions. Word has length 78 [2024-09-12 18:39:08,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:08,512 INFO L474 AbstractCegarLoop]: Abstraction has 750 states and 1001 transitions. [2024-09-12 18:39:08,512 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:08,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:08,512 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1001 transitions. [2024-09-12 18:39:08,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:39:08,513 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:08,513 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:08,530 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:08,714 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:08,714 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:08,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:08,715 INFO L85 PathProgramCache]: Analyzing trace with hash 2116273300, now seen corresponding path program 1 times [2024-09-12 18:39:08,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:08,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077773333] [2024-09-12 18:39:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:08,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:08,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110315271] [2024-09-12 18:39:08,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:08,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:08,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:08,731 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:08,733 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 18:39:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:39:08,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:09,036 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:09,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:13,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:13,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077773333] [2024-09-12 18:39:13,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:13,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110315271] [2024-09-12 18:39:13,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110315271] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:13,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:13,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:39:13,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123812993] [2024-09-12 18:39:13,364 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:13,364 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:13,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:13,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:13,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=81, Unknown=1, NotChecked=0, Total=110 [2024-09-12 18:39:13,365 INFO L87 Difference]: Start difference. First operand 750 states and 1001 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:14,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:14,011 INFO L93 Difference]: Finished difference Result 775 states and 1015 transitions. [2024-09-12 18:39:14,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:39:14,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 79 [2024-09-12 18:39:14,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:14,016 INFO L225 Difference]: With dead ends: 775 [2024-09-12 18:39:14,016 INFO L226 Difference]: Without dead ends: 772 [2024-09-12 18:39:14,016 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=53, Invalid=156, Unknown=1, NotChecked=0, Total=210 [2024-09-12 18:39:14,017 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 269 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:14,017 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 298 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:14,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-09-12 18:39:14,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 750. [2024-09-12 18:39:14,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 609 states have (on average 1.3563218390804597) internal successors, (826), 637 states have internal predecessors, (826), 87 states have call successors, (87), 28 states have call predecessors, (87), 27 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-09-12 18:39:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 997 transitions. [2024-09-12 18:39:14,205 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 997 transitions. Word has length 79 [2024-09-12 18:39:14,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:14,205 INFO L474 AbstractCegarLoop]: Abstraction has 750 states and 997 transitions. [2024-09-12 18:39:14,205 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:14,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:14,206 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 997 transitions. [2024-09-12 18:39:14,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:39:14,207 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:14,207 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:14,223 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 18:39:14,411 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:39:14,412 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:14,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:14,412 INFO L85 PathProgramCache]: Analyzing trace with hash -707401800, now seen corresponding path program 1 times [2024-09-12 18:39:14,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:14,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618878306] [2024-09-12 18:39:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:14,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:14,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483437333] [2024-09-12 18:39:14,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:14,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:14,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:14,435 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:14,437 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 18:39:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:14,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:14,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:14,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:14,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:14,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618878306] [2024-09-12 18:39:14,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:14,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483437333] [2024-09-12 18:39:14,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483437333] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:14,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:14,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:39:14,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515691413] [2024-09-12 18:39:14,881 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:14,881 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:39:14,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:14,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:39:14,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:14,882 INFO L87 Difference]: Start difference. First operand 750 states and 997 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:15,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:15,335 INFO L93 Difference]: Finished difference Result 1119 states and 1564 transitions. [2024-09-12 18:39:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:15,336 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 79 [2024-09-12 18:39:15,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:15,341 INFO L225 Difference]: With dead ends: 1119 [2024-09-12 18:39:15,341 INFO L226 Difference]: Without dead ends: 1115 [2024-09-12 18:39:15,342 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:15,342 INFO L434 NwaCegarLoop]: 110 mSDtfsCounter, 194 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:15,343 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 458 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2024-09-12 18:39:15,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 901. [2024-09-12 18:39:15,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 740 states have (on average 1.3608108108108108) internal successors, (1007), 768 states have internal predecessors, (1007), 107 states have call successors, (107), 28 states have call predecessors, (107), 27 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-09-12 18:39:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1218 transitions. [2024-09-12 18:39:15,536 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1218 transitions. Word has length 79 [2024-09-12 18:39:15,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:15,537 INFO L474 AbstractCegarLoop]: Abstraction has 901 states and 1218 transitions. [2024-09-12 18:39:15,537 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:15,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:15,538 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1218 transitions. [2024-09-12 18:39:15,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-09-12 18:39:15,538 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:15,538 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:15,555 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 18:39:15,742 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:15,743 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:15,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:15,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2028294716, now seen corresponding path program 1 times [2024-09-12 18:39:15,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:15,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370086134] [2024-09-12 18:39:15,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:15,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:15,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556827893] [2024-09-12 18:39:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:15,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:15,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:15,755 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:15,758 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 18:39:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:39:15,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:16,198 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:16,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:16,489 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:16,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:16,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370086134] [2024-09-12 18:39:16,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:16,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556827893] [2024-09-12 18:39:16,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556827893] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:16,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:16,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2024-09-12 18:39:16,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524650495] [2024-09-12 18:39:16,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:16,491 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:16,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:16,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:16,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:39:16,491 INFO L87 Difference]: Start difference. First operand 901 states and 1218 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:17,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:17,446 INFO L93 Difference]: Finished difference Result 1052 states and 1429 transitions. [2024-09-12 18:39:17,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:17,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 83 [2024-09-12 18:39:17,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:17,450 INFO L225 Difference]: With dead ends: 1052 [2024-09-12 18:39:17,450 INFO L226 Difference]: Without dead ends: 1044 [2024-09-12 18:39:17,451 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:39:17,451 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 137 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:17,451 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 324 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:17,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-09-12 18:39:17,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1018. [2024-09-12 18:39:17,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 838 states have (on average 1.3615751789976134) internal successors, (1141), 865 states have internal predecessors, (1141), 124 states have call successors, (124), 30 states have call predecessors, (124), 29 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-09-12 18:39:17,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1387 transitions. [2024-09-12 18:39:17,676 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1387 transitions. Word has length 83 [2024-09-12 18:39:17,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:17,676 INFO L474 AbstractCegarLoop]: Abstraction has 1018 states and 1387 transitions. [2024-09-12 18:39:17,676 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:17,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:17,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1387 transitions. [2024-09-12 18:39:17,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-09-12 18:39:17,677 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:17,677 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:17,698 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:17,878 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:17,878 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:17,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:17,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1526757466, now seen corresponding path program 1 times [2024-09-12 18:39:17,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:17,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791636828] [2024-09-12 18:39:17,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:17,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:17,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936517094] [2024-09-12 18:39:17,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:17,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:17,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:17,896 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:17,897 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 18:39:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:17,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:39:17,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:18,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-09-12 18:39:18,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:18,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791636828] [2024-09-12 18:39:18,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:18,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936517094] [2024-09-12 18:39:18,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936517094] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:18,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:18,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 18:39:18,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419796643] [2024-09-12 18:39:18,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:18,161 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:18,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:18,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:18,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:18,161 INFO L87 Difference]: Start difference. First operand 1018 states and 1387 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:39:18,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:18,878 INFO L93 Difference]: Finished difference Result 1036 states and 1404 transitions. [2024-09-12 18:39:18,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:39:18,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2024-09-12 18:39:18,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:18,882 INFO L225 Difference]: With dead ends: 1036 [2024-09-12 18:39:18,882 INFO L226 Difference]: Without dead ends: 1034 [2024-09-12 18:39:18,883 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:18,883 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 47 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:18,884 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 149 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:18,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2024-09-12 18:39:19,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2024-09-12 18:39:19,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 850 states have (on average 1.356470588235294) internal successors, (1153), 877 states have internal predecessors, (1153), 124 states have call successors, (124), 34 states have call predecessors, (124), 33 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-09-12 18:39:19,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1399 transitions. [2024-09-12 18:39:19,115 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1399 transitions. Word has length 83 [2024-09-12 18:39:19,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:19,116 INFO L474 AbstractCegarLoop]: Abstraction has 1034 states and 1399 transitions. [2024-09-12 18:39:19,116 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:39:19,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:19,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1399 transitions. [2024-09-12 18:39:19,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 18:39:19,117 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:19,117 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:19,129 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 18:39:19,317 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:39:19,318 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:19,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:19,318 INFO L85 PathProgramCache]: Analyzing trace with hash 770167829, now seen corresponding path program 1 times [2024-09-12 18:39:19,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:19,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783659554] [2024-09-12 18:39:19,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:19,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:19,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:19,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783659554] [2024-09-12 18:39:19,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783659554] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:19,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233029398] [2024-09-12 18:39:19,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:19,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:19,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:19,416 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:19,418 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 18:39:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:19,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:19,525 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:19,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:19,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233029398] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:19,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:19,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-09-12 18:39:19,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193632436] [2024-09-12 18:39:19,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:19,658 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:19,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:19,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:19,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:19,658 INFO L87 Difference]: Start difference. First operand 1034 states and 1399 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 18:39:20,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:20,895 INFO L93 Difference]: Finished difference Result 1629 states and 2297 transitions. [2024-09-12 18:39:20,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:20,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 99 [2024-09-12 18:39:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:20,902 INFO L225 Difference]: With dead ends: 1629 [2024-09-12 18:39:20,902 INFO L226 Difference]: Without dead ends: 1627 [2024-09-12 18:39:20,903 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:20,903 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 305 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:20,903 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 471 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:39:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2024-09-12 18:39:21,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1330. [2024-09-12 18:39:21,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1095 states have (on average 1.3625570776255709) internal successors, (1492), 1121 states have internal predecessors, (1492), 176 states have call successors, (176), 34 states have call predecessors, (176), 33 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-09-12 18:39:21,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1842 transitions. [2024-09-12 18:39:21,353 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1842 transitions. Word has length 99 [2024-09-12 18:39:21,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:21,353 INFO L474 AbstractCegarLoop]: Abstraction has 1330 states and 1842 transitions. [2024-09-12 18:39:21,353 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 18:39:21,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:21,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1842 transitions. [2024-09-12 18:39:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 18:39:21,358 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:21,358 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:21,375 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 18:39:21,559 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:21,559 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:21,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:21,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1894600966, now seen corresponding path program 1 times [2024-09-12 18:39:21,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:21,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222529100] [2024-09-12 18:39:21,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:21,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:21,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:21,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222529100] [2024-09-12 18:39:21,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222529100] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:21,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259278374] [2024-09-12 18:39:21,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:21,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:21,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:21,668 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:21,669 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:39:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:21,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:21,781 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:21,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:21,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259278374] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:21,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:21,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 11 [2024-09-12 18:39:21,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654516786] [2024-09-12 18:39:21,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:21,892 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:21,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:21,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:21,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:21,893 INFO L87 Difference]: Start difference. First operand 1330 states and 1842 transitions. Second operand has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 10 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) [2024-09-12 18:39:23,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:23,133 INFO L93 Difference]: Finished difference Result 1661 states and 2296 transitions. [2024-09-12 18:39:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:39:23,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 10 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) Word has length 100 [2024-09-12 18:39:23,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:23,139 INFO L225 Difference]: With dead ends: 1661 [2024-09-12 18:39:23,139 INFO L226 Difference]: Without dead ends: 1659 [2024-09-12 18:39:23,140 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:39:23,141 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 811 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:23,141 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 581 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:23,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2024-09-12 18:39:23,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1336. [2024-09-12 18:39:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1102 states have (on average 1.323049001814882) internal successors, (1458), 1127 states have internal predecessors, (1458), 176 states have call successors, (176), 34 states have call predecessors, (176), 33 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-09-12 18:39:23,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1808 transitions. [2024-09-12 18:39:23,499 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1808 transitions. Word has length 100 [2024-09-12 18:39:23,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:23,499 INFO L474 AbstractCegarLoop]: Abstraction has 1336 states and 1808 transitions. [2024-09-12 18:39:23,499 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 10 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) [2024-09-12 18:39:23,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:23,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1808 transitions. [2024-09-12 18:39:23,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:39:23,500 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:23,500 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:23,513 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 18:39:23,701 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 18:39:23,701 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:23,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:23,701 INFO L85 PathProgramCache]: Analyzing trace with hash 354608850, now seen corresponding path program 1 times [2024-09-12 18:39:23,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:23,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108245715] [2024-09-12 18:39:23,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:23,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:23,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:23,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108245715] [2024-09-12 18:39:23,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108245715] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:23,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:23,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:39:23,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389104962] [2024-09-12 18:39:23,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:23,772 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:23,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:23,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:23,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:23,773 INFO L87 Difference]: Start difference. First operand 1336 states and 1808 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:39:24,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:24,174 INFO L93 Difference]: Finished difference Result 1336 states and 1808 transitions. [2024-09-12 18:39:24,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:24,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2024-09-12 18:39:24,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:24,179 INFO L225 Difference]: With dead ends: 1336 [2024-09-12 18:39:24,179 INFO L226 Difference]: Without dead ends: 1335 [2024-09-12 18:39:24,179 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:24,180 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 32 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:24,180 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 196 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:24,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-09-12 18:39:24,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1335. [2024-09-12 18:39:24,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1102 states have (on average 1.3148820326678765) internal successors, (1449), 1126 states have internal predecessors, (1449), 176 states have call successors, (176), 34 states have call predecessors, (176), 33 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-09-12 18:39:24,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1799 transitions. [2024-09-12 18:39:24,568 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1799 transitions. Word has length 102 [2024-09-12 18:39:24,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:24,568 INFO L474 AbstractCegarLoop]: Abstraction has 1335 states and 1799 transitions. [2024-09-12 18:39:24,568 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:39:24,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:24,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1799 transitions. [2024-09-12 18:39:24,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 18:39:24,569 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:24,570 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:24,570 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-09-12 18:39:24,570 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:24,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:24,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1476692948, now seen corresponding path program 1 times [2024-09-12 18:39:24,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:24,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6958331] [2024-09-12 18:39:24,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:24,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,660 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:24,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:24,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6958331] [2024-09-12 18:39:24,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6958331] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:24,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666850879] [2024-09-12 18:39:24,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:24,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:24,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:24,662 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:24,664 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 18:39:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:24,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:24,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:24,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:24,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666850879] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:24,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:24,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 18:39:24,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122433550] [2024-09-12 18:39:24,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:24,864 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:24,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:24,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:24,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:24,864 INFO L87 Difference]: Start difference. First operand 1335 states and 1799 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:39:25,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:25,440 INFO L93 Difference]: Finished difference Result 1356 states and 1832 transitions. [2024-09-12 18:39:25,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:25,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2024-09-12 18:39:25,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:25,447 INFO L225 Difference]: With dead ends: 1356 [2024-09-12 18:39:25,447 INFO L226 Difference]: Without dead ends: 1355 [2024-09-12 18:39:25,448 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:25,448 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 73 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:25,448 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 188 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:25,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2024-09-12 18:39:25,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1334. [2024-09-12 18:39:25,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1102 states have (on average 1.308529945553539) internal successors, (1442), 1125 states have internal predecessors, (1442), 176 states have call successors, (176), 34 states have call predecessors, (176), 33 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-09-12 18:39:25,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1792 transitions. [2024-09-12 18:39:25,869 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1792 transitions. Word has length 104 [2024-09-12 18:39:25,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:25,870 INFO L474 AbstractCegarLoop]: Abstraction has 1334 states and 1792 transitions. [2024-09-12 18:39:25,870 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:39:25,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:25,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1792 transitions. [2024-09-12 18:39:25,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-09-12 18:39:25,871 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:25,871 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:25,887 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:26,072 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:39:26,072 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:26,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:26,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1467158724, now seen corresponding path program 1 times [2024-09-12 18:39:26,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:26,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678408390] [2024-09-12 18:39:26,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:26,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:26,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:26,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678408390] [2024-09-12 18:39:26,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678408390] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:26,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759480909] [2024-09-12 18:39:26,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:26,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:26,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:26,201 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:26,203 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 18:39:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:26,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:26,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:26,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:26,500 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:26,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759480909] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:26,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:26,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2024-09-12 18:39:26,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682359387] [2024-09-12 18:39:26,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:26,501 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:26,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:26,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:26,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:26,502 INFO L87 Difference]: Start difference. First operand 1334 states and 1792 transitions. Second operand has 12 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 10 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 18:39:27,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:27,412 INFO L93 Difference]: Finished difference Result 1604 states and 2169 transitions. [2024-09-12 18:39:27,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:39:27,413 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 10 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 105 [2024-09-12 18:39:27,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:27,418 INFO L225 Difference]: With dead ends: 1604 [2024-09-12 18:39:27,418 INFO L226 Difference]: Without dead ends: 1602 [2024-09-12 18:39:27,419 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=189, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:27,419 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 366 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:27,419 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 368 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:27,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2024-09-12 18:39:27,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1423. [2024-09-12 18:39:27,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1182 states have (on average 1.305414551607445) internal successors, (1543), 1205 states have internal predecessors, (1543), 185 states have call successors, (185), 34 states have call predecessors, (185), 33 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-09-12 18:39:27,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1911 transitions. [2024-09-12 18:39:27,765 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1911 transitions. Word has length 105 [2024-09-12 18:39:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:27,766 INFO L474 AbstractCegarLoop]: Abstraction has 1423 states and 1911 transitions. [2024-09-12 18:39:27,766 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 10 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 18:39:27,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1911 transitions. [2024-09-12 18:39:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-12 18:39:27,767 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:27,767 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:27,784 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:27,968 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:39:27,968 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:27,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:27,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1943789670, now seen corresponding path program 2 times [2024-09-12 18:39:27,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:27,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068445597] [2024-09-12 18:39:27,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:27,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,138 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 18:39:28,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:28,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068445597] [2024-09-12 18:39:28,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068445597] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:28,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770189052] [2024-09-12 18:39:28,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:39:28,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:28,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:28,141 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:28,142 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 18:39:28,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:39:28,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:39:28,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:39:28,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:28,320 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 48 proven. 26 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-09-12 18:39:28,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:28,450 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 18:39:28,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770189052] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:28,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:28,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 14 [2024-09-12 18:39:28,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990441587] [2024-09-12 18:39:28,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:28,451 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:39:28,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:28,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:39:28,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:28,453 INFO L87 Difference]: Start difference. First operand 1423 states and 1911 transitions. Second operand has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 6 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-09-12 18:39:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:29,631 INFO L93 Difference]: Finished difference Result 1488 states and 1991 transitions. [2024-09-12 18:39:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:39:29,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 6 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 109 [2024-09-12 18:39:29,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:29,636 INFO L225 Difference]: With dead ends: 1488 [2024-09-12 18:39:29,636 INFO L226 Difference]: Without dead ends: 1486 [2024-09-12 18:39:29,636 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:39:29,637 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 179 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:29,637 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 243 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2024-09-12 18:39:30,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1473. [2024-09-12 18:39:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 1228 states have (on average 1.3061889250814331) internal successors, (1604), 1253 states have internal predecessors, (1604), 187 states have call successors, (187), 36 states have call predecessors, (187), 35 states have return successors, (185), 183 states have call predecessors, (185), 185 states have call successors, (185) [2024-09-12 18:39:30,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 1976 transitions. [2024-09-12 18:39:30,143 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 1976 transitions. Word has length 109 [2024-09-12 18:39:30,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:30,143 INFO L474 AbstractCegarLoop]: Abstraction has 1473 states and 1976 transitions. [2024-09-12 18:39:30,143 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 6 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-09-12 18:39:30,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:30,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 1976 transitions. [2024-09-12 18:39:30,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 18:39:30,144 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:30,144 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:30,161 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:30,344 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:39:30,345 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:30,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:30,345 INFO L85 PathProgramCache]: Analyzing trace with hash 241976052, now seen corresponding path program 1 times [2024-09-12 18:39:30,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:30,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167735674] [2024-09-12 18:39:30,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:30,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:30,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:30,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167735674] [2024-09-12 18:39:30,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167735674] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:30,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489655683] [2024-09-12 18:39:30,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:30,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:30,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:30,508 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:30,510 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 18:39:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:39:30,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:30,676 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:30,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:30,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489655683] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:30,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:30,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 18 [2024-09-12 18:39:30,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402168534] [2024-09-12 18:39:30,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:30,807 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:39:30,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:39:30,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:30,808 INFO L87 Difference]: Start difference. First operand 1473 states and 1976 transitions. Second operand has 18 states, 18 states have (on average 7.0) internal successors, (126), 17 states have internal predecessors, (126), 7 states have call successors, (32), 7 states have call predecessors, (32), 6 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) [2024-09-12 18:39:31,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:31,536 INFO L93 Difference]: Finished difference Result 1524 states and 2024 transitions. [2024-09-12 18:39:31,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 18:39:31,537 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.0) internal successors, (126), 17 states have internal predecessors, (126), 7 states have call successors, (32), 7 states have call predecessors, (32), 6 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) Word has length 110 [2024-09-12 18:39:31,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:31,542 INFO L225 Difference]: With dead ends: 1524 [2024-09-12 18:39:31,542 INFO L226 Difference]: Without dead ends: 1508 [2024-09-12 18:39:31,543 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 233 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=221, Invalid=901, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:39:31,543 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 105 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:31,543 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 780 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:31,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2024-09-12 18:39:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1493. [2024-09-12 18:39:31,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1243 states have (on average 1.3073209975864843) internal successors, (1625), 1269 states have internal predecessors, (1625), 190 states have call successors, (190), 38 states have call predecessors, (190), 37 states have return successors, (187), 185 states have call predecessors, (187), 187 states have call successors, (187) [2024-09-12 18:39:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2002 transitions. [2024-09-12 18:39:31,943 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2002 transitions. Word has length 110 [2024-09-12 18:39:31,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:31,944 INFO L474 AbstractCegarLoop]: Abstraction has 1493 states and 2002 transitions. [2024-09-12 18:39:31,944 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.0) internal successors, (126), 17 states have internal predecessors, (126), 7 states have call successors, (32), 7 states have call predecessors, (32), 6 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) [2024-09-12 18:39:31,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2002 transitions. [2024-09-12 18:39:31,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-09-12 18:39:31,945 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:31,945 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:31,962 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:32,146 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:32,146 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:32,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:32,147 INFO L85 PathProgramCache]: Analyzing trace with hash 868431915, now seen corresponding path program 1 times [2024-09-12 18:39:32,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:32,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037417176] [2024-09-12 18:39:32,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:32,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:39:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 18:39:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:39:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:39:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,261 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:32,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:32,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037417176] [2024-09-12 18:39:32,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037417176] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:32,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704413235] [2024-09-12 18:39:32,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:32,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:32,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:32,264 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:32,265 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 18:39:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:39:32,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:32,451 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:32,647 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:32,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704413235] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:32,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:32,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 10 [2024-09-12 18:39:32,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129505863] [2024-09-12 18:39:32,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:32,649 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:39:32,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:32,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:39:32,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:32,649 INFO L87 Difference]: Start difference. First operand 1493 states and 2002 transitions. Second operand has 11 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 9 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2024-09-12 18:39:33,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:33,708 INFO L93 Difference]: Finished difference Result 1544 states and 2058 transitions. [2024-09-12 18:39:33,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:39:33,708 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 9 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) Word has length 115 [2024-09-12 18:39:33,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:33,714 INFO L225 Difference]: With dead ends: 1544 [2024-09-12 18:39:33,714 INFO L226 Difference]: Without dead ends: 1543 [2024-09-12 18:39:33,715 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:39:33,715 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 403 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:33,715 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 446 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:33,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-09-12 18:39:34,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1492. [2024-09-12 18:39:34,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1243 states have (on average 1.3049074818986324) internal successors, (1622), 1268 states have internal predecessors, (1622), 190 states have call successors, (190), 38 states have call predecessors, (190), 37 states have return successors, (187), 185 states have call predecessors, (187), 187 states have call successors, (187) [2024-09-12 18:39:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1999 transitions. [2024-09-12 18:39:34,123 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1999 transitions. Word has length 115 [2024-09-12 18:39:34,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:34,123 INFO L474 AbstractCegarLoop]: Abstraction has 1492 states and 1999 transitions. [2024-09-12 18:39:34,123 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 9 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2024-09-12 18:39:34,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1999 transitions. [2024-09-12 18:39:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:39:34,124 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:34,124 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:34,135 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 18:39:34,324 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:39:34,324 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:34,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,325 INFO L85 PathProgramCache]: Analyzing trace with hash -579712665, now seen corresponding path program 1 times [2024-09-12 18:39:34,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:34,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167509146] [2024-09-12 18:39:34,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:34,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:34,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846011498] [2024-09-12 18:39:34,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:34,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:34,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:34,346 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:34,348 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 18:39:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:39:34,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:34,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:35,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:35,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167509146] [2024-09-12 18:39:35,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:35,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846011498] [2024-09-12 18:39:35,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846011498] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:35,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:35,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:39:35,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222266914] [2024-09-12 18:39:35,076 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:35,077 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:39:35,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:35,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:39:35,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:39:35,078 INFO L87 Difference]: Start difference. First operand 1492 states and 1999 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:36,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:36,523 INFO L93 Difference]: Finished difference Result 2292 states and 3146 transitions. [2024-09-12 18:39:36,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:39:36,523 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 117 [2024-09-12 18:39:36,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:36,532 INFO L225 Difference]: With dead ends: 2292 [2024-09-12 18:39:36,532 INFO L226 Difference]: Without dead ends: 2289 [2024-09-12 18:39:36,533 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:39:36,534 INFO L434 NwaCegarLoop]: 123 mSDtfsCounter, 255 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:36,534 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 466 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:36,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2024-09-12 18:39:36,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 1545. [2024-09-12 18:39:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1289 states have (on average 1.3017843289371607) internal successors, (1678), 1314 states have internal predecessors, (1678), 197 states have call successors, (197), 38 states have call predecessors, (197), 37 states have return successors, (194), 192 states have call predecessors, (194), 194 states have call successors, (194) [2024-09-12 18:39:36,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2069 transitions. [2024-09-12 18:39:36,962 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2069 transitions. Word has length 117 [2024-09-12 18:39:36,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:36,962 INFO L474 AbstractCegarLoop]: Abstraction has 1545 states and 2069 transitions. [2024-09-12 18:39:36,962 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:36,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:36,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2069 transitions. [2024-09-12 18:39:36,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:39:36,963 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:36,963 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:36,974 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:37,163 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:37,163 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:37,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:37,164 INFO L85 PathProgramCache]: Analyzing trace with hash -791223363, now seen corresponding path program 1 times [2024-09-12 18:39:37,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:37,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92173368] [2024-09-12 18:39:37,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:37,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:37,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369559383] [2024-09-12 18:39:37,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:37,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:37,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:37,181 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:37,183 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 18:39:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:39:37,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:37,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:38,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:38,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92173368] [2024-09-12 18:39:38,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:38,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369559383] [2024-09-12 18:39:38,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369559383] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:38,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:38,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:39:38,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342921267] [2024-09-12 18:39:38,265 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:38,265 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:39:38,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:38,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:39:38,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:39:38,266 INFO L87 Difference]: Start difference. First operand 1545 states and 2069 transitions. Second operand has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:39,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:39,125 INFO L93 Difference]: Finished difference Result 1645 states and 2193 transitions. [2024-09-12 18:39:39,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:39,126 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 118 [2024-09-12 18:39:39,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:39,130 INFO L225 Difference]: With dead ends: 1645 [2024-09-12 18:39:39,130 INFO L226 Difference]: Without dead ends: 1642 [2024-09-12 18:39:39,131 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:39,131 INFO L434 NwaCegarLoop]: 109 mSDtfsCounter, 91 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:39,131 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 501 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:39,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2024-09-12 18:39:39,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1619. [2024-09-12 18:39:39,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1351 states have (on average 1.2997779422649889) internal successors, (1756), 1376 states have internal predecessors, (1756), 209 states have call successors, (209), 38 states have call predecessors, (209), 37 states have return successors, (206), 204 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:39:39,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2171 transitions. [2024-09-12 18:39:39,582 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2171 transitions. Word has length 118 [2024-09-12 18:39:39,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:39,582 INFO L474 AbstractCegarLoop]: Abstraction has 1619 states and 2171 transitions. [2024-09-12 18:39:39,582 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:39,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:39,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2171 transitions. [2024-09-12 18:39:39,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 18:39:39,583 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:39,583 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:39,595 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-09-12 18:39:39,784 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:39,784 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:39,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:39,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1241879593, now seen corresponding path program 1 times [2024-09-12 18:39:39,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:39,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911724843] [2024-09-12 18:39:39,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:39,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:39:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:39,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:39,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911724843] [2024-09-12 18:39:39,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911724843] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:39,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:39,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:39:39,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507779436] [2024-09-12 18:39:39,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:39,929 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:39,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:39,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:39,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:39:39,930 INFO L87 Difference]: Start difference. First operand 1619 states and 2171 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:39:41,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:41,399 INFO L93 Difference]: Finished difference Result 1627 states and 2175 transitions. [2024-09-12 18:39:41,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:39:41,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 119 [2024-09-12 18:39:41,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:41,404 INFO L225 Difference]: With dead ends: 1627 [2024-09-12 18:39:41,404 INFO L226 Difference]: Without dead ends: 1625 [2024-09-12 18:39:41,405 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:41,405 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 117 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:41,405 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 253 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:41,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1625 states. [2024-09-12 18:39:41,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1601. [2024-09-12 18:39:41,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1335 states have (on average 1.2921348314606742) internal successors, (1725), 1362 states have internal predecessors, (1725), 209 states have call successors, (209), 38 states have call predecessors, (209), 37 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:39:41,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2140 transitions. [2024-09-12 18:39:42,000 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2140 transitions. Word has length 119 [2024-09-12 18:39:42,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:42,000 INFO L474 AbstractCegarLoop]: Abstraction has 1601 states and 2140 transitions. [2024-09-12 18:39:42,000 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:39:42,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:42,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2140 transitions. [2024-09-12 18:39:42,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 18:39:42,001 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:42,002 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:42,002 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-09-12 18:39:42,002 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:42,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash -156438209, now seen corresponding path program 1 times [2024-09-12 18:39:42,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:42,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748218222] [2024-09-12 18:39:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:42,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:42,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [272184577] [2024-09-12 18:39:42,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:42,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:42,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:42,019 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:42,021 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 18:39:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:39:42,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:42,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:59,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:59,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748218222] [2024-09-12 18:39:59,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:59,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272184577] [2024-09-12 18:39:59,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272184577] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:59,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:59,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:39:59,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63455236] [2024-09-12 18:39:59,164 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:59,164 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:59,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:59,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:59,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=161, Unknown=4, NotChecked=0, Total=210 [2024-09-12 18:39:59,165 INFO L87 Difference]: Start difference. First operand 1601 states and 2140 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:40:00,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:00,146 INFO L93 Difference]: Finished difference Result 1619 states and 2147 transitions. [2024-09-12 18:40:00,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:40:00,147 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 120 [2024-09-12 18:40:00,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:00,150 INFO L225 Difference]: With dead ends: 1619 [2024-09-12 18:40:00,150 INFO L226 Difference]: Without dead ends: 1616 [2024-09-12 18:40:00,151 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=90, Invalid=326, Unknown=4, NotChecked=0, Total=420 [2024-09-12 18:40:00,151 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 205 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:00,151 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 494 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:40:00,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-09-12 18:40:00,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1601. [2024-09-12 18:40:00,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1335 states have (on average 1.2868913857677902) internal successors, (1718), 1362 states have internal predecessors, (1718), 209 states have call successors, (209), 38 states have call predecessors, (209), 37 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:40:00,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2133 transitions. [2024-09-12 18:40:00,596 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2133 transitions. Word has length 120 [2024-09-12 18:40:00,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:00,597 INFO L474 AbstractCegarLoop]: Abstraction has 1601 states and 2133 transitions. [2024-09-12 18:40:00,597 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:40:00,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:00,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2133 transitions. [2024-09-12 18:40:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 18:40:00,597 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:00,597 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:00,609 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:00,798 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 18:40:00,798 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:00,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:00,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1314853987, now seen corresponding path program 2 times [2024-09-12 18:40:00,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:00,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314736921] [2024-09-12 18:40:00,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:00,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:00,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243855064] [2024-09-12 18:40:00,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:00,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:00,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:00,814 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:00,815 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 18:40:00,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:00,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:00,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:40:00,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 18:40:01,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:01,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:01,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314736921] [2024-09-12 18:40:01,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:01,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243855064] [2024-09-12 18:40:01,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243855064] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:01,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:01,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:01,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946558556] [2024-09-12 18:40:01,474 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:01,474 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:01,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:01,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:01,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:40:01,475 INFO L87 Difference]: Start difference. First operand 1601 states and 2133 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:40:02,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:02,702 INFO L93 Difference]: Finished difference Result 1925 states and 2617 transitions. [2024-09-12 18:40:02,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:40:02,703 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 120 [2024-09-12 18:40:02,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:02,707 INFO L225 Difference]: With dead ends: 1925 [2024-09-12 18:40:02,707 INFO L226 Difference]: Without dead ends: 1921 [2024-09-12 18:40:02,707 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:40:02,708 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 246 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:02,708 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 559 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:40:02,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2024-09-12 18:40:03,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1601. [2024-09-12 18:40:03,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1335 states have (on average 1.2666666666666666) internal successors, (1691), 1362 states have internal predecessors, (1691), 209 states have call successors, (209), 38 states have call predecessors, (209), 37 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:40:03,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2106 transitions. [2024-09-12 18:40:03,186 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2106 transitions. Word has length 120 [2024-09-12 18:40:03,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:03,186 INFO L474 AbstractCegarLoop]: Abstraction has 1601 states and 2106 transitions. [2024-09-12 18:40:03,186 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:40:03,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:03,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2106 transitions. [2024-09-12 18:40:03,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 18:40:03,187 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:03,187 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:03,204 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-09-12 18:40:03,391 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 18:40:03,392 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:03,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:03,392 INFO L85 PathProgramCache]: Analyzing trace with hash -628704174, now seen corresponding path program 1 times [2024-09-12 18:40:03,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:03,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546894899] [2024-09-12 18:40:03,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:03,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:40:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:40:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:40:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:40:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:40:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:40:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 18:40:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:40:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:40:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,586 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:40:03,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:03,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546894899] [2024-09-12 18:40:03,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546894899] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:03,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304438905] [2024-09-12 18:40:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:03,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:03,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:03,589 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:03,590 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 18:40:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:03,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:40:03,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 18:40:03,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:40:03,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304438905] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:40:03,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:03,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-09-12 18:40:03,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217212739] [2024-09-12 18:40:03,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:40:03,724 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:40:03,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:03,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:40:03,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:40:03,725 INFO L87 Difference]: Start difference. First operand 1601 states and 2106 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:40:04,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:04,488 INFO L93 Difference]: Finished difference Result 2395 states and 3216 transitions. [2024-09-12 18:40:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:40:04,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 123 [2024-09-12 18:40:04,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:04,493 INFO L225 Difference]: With dead ends: 2395 [2024-09-12 18:40:04,493 INFO L226 Difference]: Without dead ends: 1243 [2024-09-12 18:40:04,495 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:40:04,496 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 52 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:04,496 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 227 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:40:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2024-09-12 18:40:04,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1178. [2024-09-12 18:40:04,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 981 states have (on average 1.2772680937818552) internal successors, (1253), 1006 states have internal predecessors, (1253), 148 states have call successors, (148), 30 states have call predecessors, (148), 29 states have return successors, (145), 141 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 18:40:04,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1546 transitions. [2024-09-12 18:40:04,854 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1546 transitions. Word has length 123 [2024-09-12 18:40:04,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:04,854 INFO L474 AbstractCegarLoop]: Abstraction has 1178 states and 1546 transitions. [2024-09-12 18:40:04,854 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:40:04,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:04,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1546 transitions. [2024-09-12 18:40:04,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 18:40:04,855 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:04,855 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:04,867 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:05,056 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:40:05,056 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:05,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash 144149743, now seen corresponding path program 1 times [2024-09-12 18:40:05,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:05,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543881566] [2024-09-12 18:40:05,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:05,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:05,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237168858] [2024-09-12 18:40:05,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:05,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:05,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:05,076 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:05,077 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 18:40:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:40:05,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 31 proven. 44 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 18:40:05,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:10,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:10,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543881566] [2024-09-12 18:40:10,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:10,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237168858] [2024-09-12 18:40:10,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237168858] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:10,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:10,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:40:10,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614688974] [2024-09-12 18:40:10,151 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:10,151 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:40:10,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:10,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:40:10,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=454, Unknown=1, NotChecked=0, Total=552 [2024-09-12 18:40:10,152 INFO L87 Difference]: Start difference. First operand 1178 states and 1546 transitions. Second operand has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:40:11,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:11,090 INFO L93 Difference]: Finished difference Result 1205 states and 1564 transitions. [2024-09-12 18:40:11,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:40:11,090 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) Word has length 124 [2024-09-12 18:40:11,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:11,093 INFO L225 Difference]: With dead ends: 1205 [2024-09-12 18:40:11,093 INFO L226 Difference]: Without dead ends: 1198 [2024-09-12 18:40:11,094 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=104, Invalid=495, Unknown=1, NotChecked=0, Total=600 [2024-09-12 18:40:11,094 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 80 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:11,094 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 552 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:40:11,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2024-09-12 18:40:11,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1181. [2024-09-12 18:40:11,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 983 states have (on average 1.2746693794506612) internal successors, (1253), 1007 states have internal predecessors, (1253), 147 states have call successors, (147), 32 states have call predecessors, (147), 31 states have return successors, (145), 141 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 18:40:11,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1545 transitions. [2024-09-12 18:40:11,536 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1545 transitions. Word has length 124 [2024-09-12 18:40:11,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:11,536 INFO L474 AbstractCegarLoop]: Abstraction has 1181 states and 1545 transitions. [2024-09-12 18:40:11,536 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:40:11,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:11,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1545 transitions. [2024-09-12 18:40:11,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-09-12 18:40:11,537 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:11,537 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:11,549 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:11,737 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 18:40:11,738 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:11,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:11,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1432871308, now seen corresponding path program 1 times [2024-09-12 18:40:11,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:11,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786019979] [2024-09-12 18:40:11,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:11,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:40:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:40:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:40:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:40:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:40:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:40:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:40:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:40:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:40:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:40:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:11,941 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:40:11,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:11,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786019979] [2024-09-12 18:40:11,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786019979] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:11,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880512469] [2024-09-12 18:40:11,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:11,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:11,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:11,943 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:11,945 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 18:40:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:12,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:40:12,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 211 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 18:40:12,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:40:12,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880512469] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:12,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:40:12,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 25 [2024-09-12 18:40:12,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067347751] [2024-09-12 18:40:12,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:12,417 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 18:40:12,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:12,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 18:40:12,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:40:12,418 INFO L87 Difference]: Start difference. First operand 1181 states and 1545 transitions. Second operand has 26 states, 25 states have (on average 6.4) internal successors, (160), 25 states have internal predecessors, (160), 12 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (39), 11 states have call predecessors, (39), 12 states have call successors, (39) [2024-09-12 18:40:13,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:13,481 INFO L93 Difference]: Finished difference Result 1793 states and 2247 transitions. [2024-09-12 18:40:13,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-09-12 18:40:13,482 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.4) internal successors, (160), 25 states have internal predecessors, (160), 12 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (39), 11 states have call predecessors, (39), 12 states have call successors, (39) Word has length 129 [2024-09-12 18:40:13,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:13,486 INFO L225 Difference]: With dead ends: 1793 [2024-09-12 18:40:13,486 INFO L226 Difference]: Without dead ends: 1547 [2024-09-12 18:40:13,487 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=632, Invalid=2674, Unknown=0, NotChecked=0, Total=3306 [2024-09-12 18:40:13,488 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 317 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:13,488 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 738 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:40:13,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-09-12 18:40:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1497. [2024-09-12 18:40:13,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 1245 states have (on average 1.2530120481927711) internal successors, (1560), 1272 states have internal predecessors, (1560), 168 states have call successors, (168), 65 states have call predecessors, (168), 64 states have return successors, (164), 159 states have call predecessors, (164), 164 states have call successors, (164) [2024-09-12 18:40:13,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1892 transitions. [2024-09-12 18:40:13,947 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1892 transitions. Word has length 129 [2024-09-12 18:40:13,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:13,947 INFO L474 AbstractCegarLoop]: Abstraction has 1497 states and 1892 transitions. [2024-09-12 18:40:13,947 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.4) internal successors, (160), 25 states have internal predecessors, (160), 12 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (39), 11 states have call predecessors, (39), 12 states have call successors, (39) [2024-09-12 18:40:13,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:13,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1892 transitions. [2024-09-12 18:40:13,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 18:40:13,948 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:13,948 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:13,960 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:14,150 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 18:40:14,150 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:14,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:14,150 INFO L85 PathProgramCache]: Analyzing trace with hash 358587858, now seen corresponding path program 2 times [2024-09-12 18:40:14,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:14,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5519671] [2024-09-12 18:40:14,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:14,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:14,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850034842] [2024-09-12 18:40:14,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:14,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:14,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:14,175 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:14,177 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 18:40:14,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:14,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:14,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:40:14,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 8 proven. 57 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:14,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:14,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:14,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5519671] [2024-09-12 18:40:14,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:14,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850034842] [2024-09-12 18:40:14,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850034842] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:14,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:14,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:14,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502637855] [2024-09-12 18:40:14,838 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:14,838 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:14,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:14,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:14,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:40:14,839 INFO L87 Difference]: Start difference. First operand 1497 states and 1892 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:16,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:16,982 INFO L93 Difference]: Finished difference Result 2743 states and 3672 transitions. [2024-09-12 18:40:16,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:40:16,982 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 158 [2024-09-12 18:40:16,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:16,988 INFO L225 Difference]: With dead ends: 2743 [2024-09-12 18:40:16,988 INFO L226 Difference]: Without dead ends: 2740 [2024-09-12 18:40:16,989 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:40:16,989 INFO L434 NwaCegarLoop]: 185 mSDtfsCounter, 377 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:16,989 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 823 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:40:16,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2024-09-12 18:40:17,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1476. [2024-09-12 18:40:17,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1224 states have (on average 1.2508169934640523) internal successors, (1531), 1251 states have internal predecessors, (1531), 168 states have call successors, (168), 65 states have call predecessors, (168), 64 states have return successors, (164), 159 states have call predecessors, (164), 164 states have call successors, (164) [2024-09-12 18:40:17,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1863 transitions. [2024-09-12 18:40:17,513 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1863 transitions. Word has length 158 [2024-09-12 18:40:17,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:17,513 INFO L474 AbstractCegarLoop]: Abstraction has 1476 states and 1863 transitions. [2024-09-12 18:40:17,513 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:17,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:17,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1863 transitions. [2024-09-12 18:40:17,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-09-12 18:40:17,514 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:17,514 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:17,526 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:17,715 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:40:17,715 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:17,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:17,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1768678222, now seen corresponding path program 2 times [2024-09-12 18:40:17,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:17,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783710771] [2024-09-12 18:40:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:17,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:17,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [776926613] [2024-09-12 18:40:17,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:17,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:17,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:17,733 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:17,735 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 18:40:17,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:17,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:17,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:40:17,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:18,392 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:18,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:18,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783710771] [2024-09-12 18:40:18,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:18,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776926613] [2024-09-12 18:40:18,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776926613] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:18,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:18,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:18,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936076625] [2024-09-12 18:40:18,897 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:18,897 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:18,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:18,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:18,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:40:18,898 INFO L87 Difference]: Start difference. First operand 1476 states and 1863 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:20,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:20,109 INFO L93 Difference]: Finished difference Result 1581 states and 1993 transitions. [2024-09-12 18:40:20,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:40:20,109 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 159 [2024-09-12 18:40:20,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:20,114 INFO L225 Difference]: With dead ends: 1581 [2024-09-12 18:40:20,114 INFO L226 Difference]: Without dead ends: 1578 [2024-09-12 18:40:20,114 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:40:20,115 INFO L434 NwaCegarLoop]: 123 mSDtfsCounter, 91 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:20,115 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 623 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:40:20,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2024-09-12 18:40:20,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1540. [2024-09-12 18:40:20,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1277 states have (on average 1.250587314017228) internal successors, (1597), 1304 states have internal predecessors, (1597), 179 states have call successors, (179), 65 states have call predecessors, (179), 64 states have return successors, (175), 170 states have call predecessors, (175), 175 states have call successors, (175) [2024-09-12 18:40:20,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1951 transitions. [2024-09-12 18:40:20,669 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1951 transitions. Word has length 159 [2024-09-12 18:40:20,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:20,669 INFO L474 AbstractCegarLoop]: Abstraction has 1540 states and 1951 transitions. [2024-09-12 18:40:20,669 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:20,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:20,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1951 transitions. [2024-09-12 18:40:20,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 18:40:20,670 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:20,670 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:20,684 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:20,871 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:40:20,871 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:20,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:20,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1107280116, now seen corresponding path program 2 times [2024-09-12 18:40:20,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:20,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076071631] [2024-09-12 18:40:20,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:20,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:20,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204833481] [2024-09-12 18:40:20,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:20,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:20,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:20,894 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:20,896 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 18:40:20,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:20,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:20,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:40:20,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:21,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:23,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:23,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076071631] [2024-09-12 18:40:23,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:23,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204833481] [2024-09-12 18:40:23,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204833481] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:23,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:23,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:23,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855562558] [2024-09-12 18:40:23,255 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:23,255 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:23,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:23,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:23,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:40:23,256 INFO L87 Difference]: Start difference. First operand 1540 states and 1951 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:40:24,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:24,461 INFO L93 Difference]: Finished difference Result 1568 states and 1970 transitions. [2024-09-12 18:40:24,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:40:24,462 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 161 [2024-09-12 18:40:24,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:24,466 INFO L225 Difference]: With dead ends: 1568 [2024-09-12 18:40:24,466 INFO L226 Difference]: Without dead ends: 1565 [2024-09-12 18:40:24,466 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:40:24,467 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 98 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:24,467 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 597 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:40:24,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-09-12 18:40:25,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1542. [2024-09-12 18:40:25,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1279 states have (on average 1.2455043002345583) internal successors, (1593), 1306 states have internal predecessors, (1593), 179 states have call successors, (179), 65 states have call predecessors, (179), 64 states have return successors, (175), 170 states have call predecessors, (175), 175 states have call successors, (175) [2024-09-12 18:40:25,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1947 transitions. [2024-09-12 18:40:25,029 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1947 transitions. Word has length 161 [2024-09-12 18:40:25,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:25,030 INFO L474 AbstractCegarLoop]: Abstraction has 1542 states and 1947 transitions. [2024-09-12 18:40:25,030 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:40:25,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:25,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1947 transitions. [2024-09-12 18:40:25,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 18:40:25,031 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:25,031 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:25,044 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:25,231 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:25,232 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:25,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:25,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1716394984, now seen corresponding path program 3 times [2024-09-12 18:40:25,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:25,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981034876] [2024-09-12 18:40:25,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:25,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:25,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [725368716] [2024-09-12 18:40:25,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:25,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:25,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:25,254 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:25,255 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 18:40:25,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:40:25,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:25,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:40:25,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:25,618 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 45 proven. 26 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-09-12 18:40:25,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:29,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:29,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981034876] [2024-09-12 18:40:29,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:29,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725368716] [2024-09-12 18:40:29,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725368716] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:29,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:29,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:29,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515148461] [2024-09-12 18:40:29,946 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:29,946 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:29,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:29,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:29,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=172, Unknown=1, NotChecked=0, Total=210 [2024-09-12 18:40:29,947 INFO L87 Difference]: Start difference. First operand 1542 states and 1947 transitions. Second operand has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:40:31,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:31,550 INFO L93 Difference]: Finished difference Result 2009 states and 2605 transitions. [2024-09-12 18:40:31,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:40:31,550 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 161 [2024-09-12 18:40:31,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:31,555 INFO L225 Difference]: With dead ends: 2009 [2024-09-12 18:40:31,555 INFO L226 Difference]: Without dead ends: 2005 [2024-09-12 18:40:31,556 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=96, Invalid=323, Unknown=1, NotChecked=0, Total=420 [2024-09-12 18:40:31,556 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 341 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:31,556 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 610 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:40:31,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2024-09-12 18:40:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1542. [2024-09-12 18:40:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1279 states have (on average 1.236903831118061) internal successors, (1582), 1306 states have internal predecessors, (1582), 179 states have call successors, (179), 65 states have call predecessors, (179), 64 states have return successors, (175), 170 states have call predecessors, (175), 175 states have call successors, (175) [2024-09-12 18:40:32,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1936 transitions. [2024-09-12 18:40:32,180 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1936 transitions. Word has length 161 [2024-09-12 18:40:32,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:32,180 INFO L474 AbstractCegarLoop]: Abstraction has 1542 states and 1936 transitions. [2024-09-12 18:40:32,181 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:40:32,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1936 transitions. [2024-09-12 18:40:32,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-12 18:40:32,182 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:32,182 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:32,193 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:32,382 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:32,382 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:32,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1415566461, now seen corresponding path program 1 times [2024-09-12 18:40:32,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:32,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797985998] [2024-09-12 18:40:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:32,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:32,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703237564] [2024-09-12 18:40:32,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:32,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:32,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:32,399 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:32,401 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 18:40:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:32,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:40:32,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:32,924 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:32,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:33,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:33,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797985998] [2024-09-12 18:40:33,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:33,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703237564] [2024-09-12 18:40:33,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703237564] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:33,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:33,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:33,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218372497] [2024-09-12 18:40:33,246 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:33,247 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:33,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:33,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:33,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:40:33,247 INFO L87 Difference]: Start difference. First operand 1542 states and 1936 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 7 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-09-12 18:40:34,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:34,344 INFO L93 Difference]: Finished difference Result 1569 states and 1957 transitions. [2024-09-12 18:40:34,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:40:34,345 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 7 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 164 [2024-09-12 18:40:34,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:34,348 INFO L225 Difference]: With dead ends: 1569 [2024-09-12 18:40:34,348 INFO L226 Difference]: Without dead ends: 1567 [2024-09-12 18:40:34,348 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:40:34,348 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 143 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:34,349 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 498 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:40:34,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-09-12 18:40:34,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1542. [2024-09-12 18:40:34,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1279 states have (on average 1.235340109460516) internal successors, (1580), 1306 states have internal predecessors, (1580), 179 states have call successors, (179), 65 states have call predecessors, (179), 64 states have return successors, (175), 170 states have call predecessors, (175), 175 states have call successors, (175) [2024-09-12 18:40:34,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1934 transitions. [2024-09-12 18:40:34,889 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1934 transitions. Word has length 164 [2024-09-12 18:40:34,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:34,890 INFO L474 AbstractCegarLoop]: Abstraction has 1542 states and 1934 transitions. [2024-09-12 18:40:34,890 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 7 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-09-12 18:40:34,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:34,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1934 transitions. [2024-09-12 18:40:34,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-09-12 18:40:34,891 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:34,891 INFO L216 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:34,906 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-09-12 18:40:35,095 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:35,096 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:35,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:35,096 INFO L85 PathProgramCache]: Analyzing trace with hash -907970012, now seen corresponding path program 2 times [2024-09-12 18:40:35,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:35,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060100611] [2024-09-12 18:40:35,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:35,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:35,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25897110] [2024-09-12 18:40:35,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:35,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:35,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:35,112 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:35,116 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 18:40:35,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:35,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:35,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 18:40:35,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 39 proven. 97 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-09-12 18:40:36,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:36,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:36,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060100611] [2024-09-12 18:40:36,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:36,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25897110] [2024-09-12 18:40:36,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25897110] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:36,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:36,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 18:40:36,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29431375] [2024-09-12 18:40:36,697 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:36,697 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:40:36,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:36,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:40:36,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:40:36,698 INFO L87 Difference]: Start difference. First operand 1542 states and 1934 transitions. Second operand has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 8 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:38,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:38,124 INFO L93 Difference]: Finished difference Result 1575 states and 1962 transitions. [2024-09-12 18:40:38,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:40:38,125 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 8 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 165 [2024-09-12 18:40:38,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:38,130 INFO L225 Difference]: With dead ends: 1575 [2024-09-12 18:40:38,130 INFO L226 Difference]: Without dead ends: 1568 [2024-09-12 18:40:38,131 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:40:38,131 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 81 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:38,131 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 704 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:40:38,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2024-09-12 18:40:38,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1550. [2024-09-12 18:40:38,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1284 states have (on average 1.2320872274143302) internal successors, (1582), 1311 states have internal predecessors, (1582), 179 states have call successors, (179), 68 states have call predecessors, (179), 67 states have return successors, (175), 170 states have call predecessors, (175), 175 states have call successors, (175) [2024-09-12 18:40:38,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 1936 transitions. [2024-09-12 18:40:38,774 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 1936 transitions. Word has length 165 [2024-09-12 18:40:38,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:38,774 INFO L474 AbstractCegarLoop]: Abstraction has 1550 states and 1936 transitions. [2024-09-12 18:40:38,774 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 8 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:38,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:38,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 1936 transitions. [2024-09-12 18:40:38,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-09-12 18:40:38,775 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:38,775 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:38,788 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:38,976 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 18:40:38,976 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:38,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:38,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1145258913, now seen corresponding path program 1 times [2024-09-12 18:40:38,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:38,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200354643] [2024-09-12 18:40:38,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:38,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:38,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532534230] [2024-09-12 18:40:38,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:38,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:38,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:38,992 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:38,994 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 18:40:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:39,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:40:39,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:39,661 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:39,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:52,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:52,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200354643] [2024-09-12 18:40:52,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:52,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532534230] [2024-09-12 18:40:52,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532534230] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:52,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:52,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:52,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734292233] [2024-09-12 18:40:52,175 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:52,176 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:52,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:52,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:52,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=246, Unknown=3, NotChecked=0, Total=306 [2024-09-12 18:40:52,176 INFO L87 Difference]: Start difference. First operand 1550 states and 1936 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 7 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-09-12 18:40:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:53,386 INFO L93 Difference]: Finished difference Result 1566 states and 1946 transitions. [2024-09-12 18:40:53,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:40:53,386 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 7 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 166 [2024-09-12 18:40:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:53,390 INFO L225 Difference]: With dead ends: 1566 [2024-09-12 18:40:53,391 INFO L226 Difference]: Without dead ends: 1564 [2024-09-12 18:40:53,391 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 284 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=121, Invalid=578, Unknown=3, NotChecked=0, Total=702 [2024-09-12 18:40:53,392 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 305 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:53,392 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 484 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:40:53,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2024-09-12 18:40:53,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1550. [2024-09-12 18:40:53,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1284 states have (on average 1.2305295950155763) internal successors, (1580), 1311 states have internal predecessors, (1580), 179 states have call successors, (179), 68 states have call predecessors, (179), 67 states have return successors, (175), 170 states have call predecessors, (175), 175 states have call successors, (175) [2024-09-12 18:40:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 1934 transitions. [2024-09-12 18:40:54,002 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 1934 transitions. Word has length 166 [2024-09-12 18:40:54,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:54,003 INFO L474 AbstractCegarLoop]: Abstraction has 1550 states and 1934 transitions. [2024-09-12 18:40:54,003 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 7 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-09-12 18:40:54,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:54,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 1934 transitions. [2024-09-12 18:40:54,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-09-12 18:40:54,004 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:54,004 INFO L216 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:54,018 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:54,204 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:54,205 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:54,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash -594455611, now seen corresponding path program 1 times [2024-09-12 18:40:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:54,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592079089] [2024-09-12 18:40:54,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:54,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:54,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602657237] [2024-09-12 18:40:54,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:54,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:54,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:54,229 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:54,230 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 18:40:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:54,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-09-12 18:40:54,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 28 proven. 73 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:55,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 69 proven. 32 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:56,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:56,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592079089] [2024-09-12 18:40:56,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:56,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602657237] [2024-09-12 18:40:56,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602657237] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:56,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:40:56,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 29 [2024-09-12 18:40:56,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62911411] [2024-09-12 18:40:56,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:56,415 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 18:40:56,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:56,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 18:40:56,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=668, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:40:56,418 INFO L87 Difference]: Start difference. First operand 1550 states and 1934 transitions. Second operand has 29 states, 29 states have (on average 6.482758620689655) internal successors, (188), 26 states have internal predecessors, (188), 13 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) [2024-09-12 18:40:59,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:59,522 INFO L93 Difference]: Finished difference Result 2402 states and 3073 transitions. [2024-09-12 18:40:59,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-12 18:40:59,523 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.482758620689655) internal successors, (188), 26 states have internal predecessors, (188), 13 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) Word has length 170 [2024-09-12 18:40:59,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:59,528 INFO L225 Difference]: With dead ends: 2402 [2024-09-12 18:40:59,528 INFO L226 Difference]: Without dead ends: 1719 [2024-09-12 18:40:59,531 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=544, Invalid=2318, Unknown=0, NotChecked=0, Total=2862 [2024-09-12 18:40:59,531 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 760 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:59,531 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 968 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 2035 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 18:40:59,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2024-09-12 18:41:00,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1648. [2024-09-12 18:41:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1372 states have (on average 1.2660349854227406) internal successors, (1737), 1398 states have internal predecessors, (1737), 202 states have call successors, (202), 55 states have call predecessors, (202), 54 states have return successors, (199), 194 states have call predecessors, (199), 199 states have call successors, (199) [2024-09-12 18:41:00,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2138 transitions. [2024-09-12 18:41:00,276 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2138 transitions. Word has length 170 [2024-09-12 18:41:00,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:00,277 INFO L474 AbstractCegarLoop]: Abstraction has 1648 states and 2138 transitions. [2024-09-12 18:41:00,277 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.482758620689655) internal successors, (188), 26 states have internal predecessors, (188), 13 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) [2024-09-12 18:41:00,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:00,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2138 transitions. [2024-09-12 18:41:00,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-09-12 18:41:00,279 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:00,279 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:00,297 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-09-12 18:41:00,479 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:00,481 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:00,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:00,481 INFO L85 PathProgramCache]: Analyzing trace with hash 955870789, now seen corresponding path program 1 times [2024-09-12 18:41:00,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:00,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039601533] [2024-09-12 18:41:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:00,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 18:41:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,698 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:41:00,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:00,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039601533] [2024-09-12 18:41:00,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039601533] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:00,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296852298] [2024-09-12 18:41:00,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:00,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:00,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:00,701 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:00,702 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 18:41:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:00,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:41:00,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:01,124 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 13 proven. 71 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:41:01,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 13 proven. 71 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:41:01,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296852298] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:01,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:01,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-09-12 18:41:01,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111081833] [2024-09-12 18:41:01,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:01,418 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 18:41:01,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:01,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 18:41:01,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:41:01,419 INFO L87 Difference]: Start difference. First operand 1648 states and 2138 transitions. Second operand has 25 states, 24 states have (on average 10.958333333333334) internal successors, (263), 24 states have internal predecessors, (263), 17 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 17 states have call predecessors, (46), 17 states have call successors, (46) [2024-09-12 18:41:08,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:08,566 INFO L93 Difference]: Finished difference Result 3416 states and 4618 transitions. [2024-09-12 18:41:08,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-09-12 18:41:08,567 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 10.958333333333334) internal successors, (263), 24 states have internal predecessors, (263), 17 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 17 states have call predecessors, (46), 17 states have call successors, (46) Word has length 173 [2024-09-12 18:41:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:08,573 INFO L225 Difference]: With dead ends: 3416 [2024-09-12 18:41:08,573 INFO L226 Difference]: Without dead ends: 2453 [2024-09-12 18:41:08,577 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3767 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2386, Invalid=9170, Unknown=0, NotChecked=0, Total=11556 [2024-09-12 18:41:08,577 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 2799 mSDsluCounter, 2284 mSDsCounter, 0 mSdLazyCounter, 5221 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2805 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 5719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 5221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:08,577 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2805 Valid, 2413 Invalid, 5719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 5221 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-09-12 18:41:08,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2453 states. [2024-09-12 18:41:09,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2453 to 1448. [2024-09-12 18:41:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1203 states have (on average 1.2776392352452204) internal successors, (1537), 1232 states have internal predecessors, (1537), 174 states have call successors, (174), 52 states have call predecessors, (174), 51 states have return successors, (171), 163 states have call predecessors, (171), 171 states have call successors, (171) [2024-09-12 18:41:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1882 transitions. [2024-09-12 18:41:09,207 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1882 transitions. Word has length 173 [2024-09-12 18:41:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:09,207 INFO L474 AbstractCegarLoop]: Abstraction has 1448 states and 1882 transitions. [2024-09-12 18:41:09,207 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 10.958333333333334) internal successors, (263), 24 states have internal predecessors, (263), 17 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 17 states have call predecessors, (46), 17 states have call successors, (46) [2024-09-12 18:41:09,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:09,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1882 transitions. [2024-09-12 18:41:09,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 18:41:09,208 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:09,209 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:09,225 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:09,409 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-09-12 18:41:09,409 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:09,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:09,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1187912558, now seen corresponding path program 1 times [2024-09-12 18:41:09,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:09,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194128413] [2024-09-12 18:41:09,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:09,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:09,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751345931] [2024-09-12 18:41:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:09,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:09,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:09,426 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:09,430 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 18:41:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:09,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:41:09,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:10,073 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:41:10,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:10,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:10,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194128413] [2024-09-12 18:41:10,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:10,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751345931] [2024-09-12 18:41:10,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751345931] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:10,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:10,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:41:10,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397809320] [2024-09-12 18:41:10,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:10,495 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:41:10,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:10,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:41:10,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:41:10,496 INFO L87 Difference]: Start difference. First operand 1448 states and 1882 transitions. Second operand has 14 states, 13 states have (on average 8.0) internal successors, (104), 14 states have internal predecessors, (104), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 18:41:11,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:11,888 INFO L93 Difference]: Finished difference Result 1517 states and 1964 transitions. [2024-09-12 18:41:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:41:11,888 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.0) internal successors, (104), 14 states have internal predecessors, (104), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 181 [2024-09-12 18:41:11,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:11,893 INFO L225 Difference]: With dead ends: 1517 [2024-09-12 18:41:11,893 INFO L226 Difference]: Without dead ends: 1514 [2024-09-12 18:41:11,894 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:41:11,894 INFO L434 NwaCegarLoop]: 115 mSDtfsCounter, 141 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:11,894 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 506 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:41:11,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2024-09-12 18:41:12,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1485. [2024-09-12 18:41:12,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1235 states have (on average 1.2728744939271255) internal successors, (1572), 1263 states have internal predecessors, (1572), 179 states have call successors, (179), 52 states have call predecessors, (179), 51 states have return successors, (176), 169 states have call predecessors, (176), 176 states have call successors, (176) [2024-09-12 18:41:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1927 transitions. [2024-09-12 18:41:12,584 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1927 transitions. Word has length 181 [2024-09-12 18:41:12,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:12,584 INFO L474 AbstractCegarLoop]: Abstraction has 1485 states and 1927 transitions. [2024-09-12 18:41:12,584 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.0) internal successors, (104), 14 states have internal predecessors, (104), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 18:41:12,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:12,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1927 transitions. [2024-09-12 18:41:12,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-09-12 18:41:12,585 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:12,585 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:41:12,602 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-09-12 18:41:12,786 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 18:41:12,786 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:12,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:12,786 INFO L85 PathProgramCache]: Analyzing trace with hash -877327600, now seen corresponding path program 1 times [2024-09-12 18:41:12,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:12,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029107186] [2024-09-12 18:41:12,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:12,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:12,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950283024] [2024-09-12 18:41:12,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:12,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:12,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:12,806 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:12,809 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 18:41:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:12,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 18:41:12,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:13,465 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:41:13,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:21,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:21,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029107186] [2024-09-12 18:41:21,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:21,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950283024] [2024-09-12 18:41:21,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950283024] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:21,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:21,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:41:21,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405465560] [2024-09-12 18:41:21,962 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:21,962 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:41:21,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:21,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:41:21,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=380, Unknown=2, NotChecked=0, Total=462 [2024-09-12 18:41:21,963 INFO L87 Difference]: Start difference. First operand 1485 states and 1927 transitions. Second operand has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 18:41:23,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:23,671 INFO L93 Difference]: Finished difference Result 1508 states and 1947 transitions. [2024-09-12 18:41:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:41:23,671 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 183 [2024-09-12 18:41:23,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:23,675 INFO L225 Difference]: With dead ends: 1508 [2024-09-12 18:41:23,675 INFO L226 Difference]: Without dead ends: 1484 [2024-09-12 18:41:23,676 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 314 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=169, Invalid=885, Unknown=2, NotChecked=0, Total=1056 [2024-09-12 18:41:23,676 INFO L434 NwaCegarLoop]: 133 mSDtfsCounter, 382 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:23,676 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 966 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:41:23,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2024-09-12 18:41:24,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1468. [2024-09-12 18:41:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1220 states have (on average 1.2704918032786885) internal successors, (1550), 1248 states have internal predecessors, (1550), 177 states have call successors, (177), 52 states have call predecessors, (177), 51 states have return successors, (174), 167 states have call predecessors, (174), 174 states have call successors, (174) [2024-09-12 18:41:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1901 transitions. [2024-09-12 18:41:24,293 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1901 transitions. Word has length 183 [2024-09-12 18:41:24,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:24,293 INFO L474 AbstractCegarLoop]: Abstraction has 1468 states and 1901 transitions. [2024-09-12 18:41:24,293 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 18:41:24,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:24,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1901 transitions. [2024-09-12 18:41:24,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-09-12 18:41:24,294 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:24,295 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:24,311 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-09-12 18:41:24,495 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:24,496 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:24,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:24,496 INFO L85 PathProgramCache]: Analyzing trace with hash 539540116, now seen corresponding path program 2 times [2024-09-12 18:41:24,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:24,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556182843] [2024-09-12 18:41:24,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:24,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:24,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2142147130] [2024-09-12 18:41:24,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:41:24,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:24,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:24,522 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:24,529 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 18:41:24,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:41:24,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:24,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:41:24,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 4 proven. 123 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:41:25,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:25,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:25,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556182843] [2024-09-12 18:41:25,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:25,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142147130] [2024-09-12 18:41:25,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142147130] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:25,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:25,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:41:25,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423602746] [2024-09-12 18:41:25,520 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:25,520 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:41:25,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:25,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:41:25,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:41:25,521 INFO L87 Difference]: Start difference. First operand 1468 states and 1901 transitions. Second operand has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-09-12 18:41:28,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:28,346 INFO L93 Difference]: Finished difference Result 2295 states and 3103 transitions. [2024-09-12 18:41:28,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:41:28,346 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 192 [2024-09-12 18:41:28,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:28,351 INFO L225 Difference]: With dead ends: 2295 [2024-09-12 18:41:28,351 INFO L226 Difference]: Without dead ends: 2292 [2024-09-12 18:41:28,351 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=544, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:41:28,352 INFO L434 NwaCegarLoop]: 232 mSDtfsCounter, 399 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 3047 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 3111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:28,352 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1482 Invalid, 3111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3047 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 18:41:28,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2024-09-12 18:41:29,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2049. [2024-09-12 18:41:29,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1716 states have (on average 1.2972027972027973) internal successors, (2226), 1747 states have internal predecessors, (2226), 262 states have call successors, (262), 52 states have call predecessors, (262), 51 states have return successors, (259), 249 states have call predecessors, (259), 259 states have call successors, (259) [2024-09-12 18:41:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2747 transitions. [2024-09-12 18:41:29,223 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2747 transitions. Word has length 192 [2024-09-12 18:41:29,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:29,224 INFO L474 AbstractCegarLoop]: Abstraction has 2049 states and 2747 transitions. [2024-09-12 18:41:29,224 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-09-12 18:41:29,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:29,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2747 transitions. [2024-09-12 18:41:29,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-09-12 18:41:29,225 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:29,225 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:29,237 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-09-12 18:41:29,425 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:29,425 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:29,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:29,426 INFO L85 PathProgramCache]: Analyzing trace with hash -454125437, now seen corresponding path program 2 times [2024-09-12 18:41:29,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:29,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584098115] [2024-09-12 18:41:29,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:29,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:29,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412373991] [2024-09-12 18:41:29,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:41:29,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:29,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:29,445 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:29,447 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 18:41:29,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:41:29,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:29,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:41:29,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:30,154 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:41:30,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:30,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:30,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584098115] [2024-09-12 18:41:30,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:30,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412373991] [2024-09-12 18:41:30,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412373991] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:30,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:30,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:41:30,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941001338] [2024-09-12 18:41:30,523 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:30,523 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:41:30,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:30,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:41:30,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:41:30,524 INFO L87 Difference]: Start difference. First operand 2049 states and 2747 transitions. Second operand has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-09-12 18:41:32,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:32,160 INFO L93 Difference]: Finished difference Result 2205 states and 2951 transitions. [2024-09-12 18:41:32,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:41:32,160 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 193 [2024-09-12 18:41:32,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:32,166 INFO L225 Difference]: With dead ends: 2205 [2024-09-12 18:41:32,166 INFO L226 Difference]: Without dead ends: 2202 [2024-09-12 18:41:32,166 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:41:32,167 INFO L434 NwaCegarLoop]: 126 mSDtfsCounter, 85 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:32,167 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 746 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:41:32,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2024-09-12 18:41:33,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 2163. [2024-09-12 18:41:33,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2163 states, 1811 states have (on average 1.2943125345113198) internal successors, (2344), 1842 states have internal predecessors, (2344), 281 states have call successors, (281), 52 states have call predecessors, (281), 51 states have return successors, (278), 268 states have call predecessors, (278), 278 states have call successors, (278) [2024-09-12 18:41:33,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2163 states to 2163 states and 2903 transitions. [2024-09-12 18:41:33,103 INFO L78 Accepts]: Start accepts. Automaton has 2163 states and 2903 transitions. Word has length 193 [2024-09-12 18:41:33,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:33,103 INFO L474 AbstractCegarLoop]: Abstraction has 2163 states and 2903 transitions. [2024-09-12 18:41:33,103 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-09-12 18:41:33,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2163 states and 2903 transitions. [2024-09-12 18:41:33,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-09-12 18:41:33,104 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:33,104 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:33,118 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-09-12 18:41:33,305 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:33,305 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:33,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:33,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1672124133, now seen corresponding path program 2 times [2024-09-12 18:41:33,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:33,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871732837] [2024-09-12 18:41:33,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:33,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:33,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525929535] [2024-09-12 18:41:33,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:41:33,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:33,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:33,323 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:33,325 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 18:41:33,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:41:33,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:33,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 18:41:33,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:41:34,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:38,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:38,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871732837] [2024-09-12 18:41:38,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:38,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525929535] [2024-09-12 18:41:38,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525929535] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:38,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:38,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:41:38,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138069449] [2024-09-12 18:41:38,564 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:38,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:41:38,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:38,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:41:38,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=411, Unknown=1, NotChecked=0, Total=506 [2024-09-12 18:41:38,565 INFO L87 Difference]: Start difference. First operand 2163 states and 2903 transitions. Second operand has 13 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 18:41:40,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:40,293 INFO L93 Difference]: Finished difference Result 2189 states and 2923 transitions. [2024-09-12 18:41:40,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:41:40,293 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 195 [2024-09-12 18:41:40,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:40,299 INFO L225 Difference]: With dead ends: 2189 [2024-09-12 18:41:40,300 INFO L226 Difference]: Without dead ends: 2186 [2024-09-12 18:41:40,300 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=191, Invalid=864, Unknown=1, NotChecked=0, Total=1056 [2024-09-12 18:41:40,301 INFO L434 NwaCegarLoop]: 125 mSDtfsCounter, 248 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:40,301 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 747 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:41:40,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2024-09-12 18:41:41,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 2165. [2024-09-12 18:41:41,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2165 states, 1813 states have (on average 1.2906784335355763) internal successors, (2340), 1844 states have internal predecessors, (2340), 281 states have call successors, (281), 52 states have call predecessors, (281), 51 states have return successors, (278), 268 states have call predecessors, (278), 278 states have call successors, (278) [2024-09-12 18:41:41,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 2899 transitions. [2024-09-12 18:41:41,219 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 2899 transitions. Word has length 195 [2024-09-12 18:41:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:41,219 INFO L474 AbstractCegarLoop]: Abstraction has 2165 states and 2899 transitions. [2024-09-12 18:41:41,219 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 18:41:41,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:41,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 2899 transitions. [2024-09-12 18:41:41,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-09-12 18:41:41,220 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:41,220 INFO L216 NwaCegarLoop]: trace histogram [18, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:41,238 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:41,420 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:41,421 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:41,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash -849183925, now seen corresponding path program 2 times [2024-09-12 18:41:41,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:41,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857276005] [2024-09-12 18:41:41,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:41,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:41,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627622323] [2024-09-12 18:41:41,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:41:41,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:41,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:41,437 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:41,439 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:41:41,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:41:41,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:41,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-09-12 18:41:41,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:42,225 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 33 proven. 176 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-09-12 18:41:42,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:42,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:42,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857276005] [2024-09-12 18:41:42,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:42,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627622323] [2024-09-12 18:41:42,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627622323] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:42,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:42,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 18:41:42,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644107073] [2024-09-12 18:41:42,750 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:42,751 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:41:42,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:42,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:41:42,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:41:42,751 INFO L87 Difference]: Start difference. First operand 2165 states and 2899 transitions. Second operand has 17 states, 17 states have (on average 6.705882352941177) internal successors, (114), 16 states have internal predecessors, (114), 8 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 18:41:44,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:44,603 INFO L93 Difference]: Finished difference Result 2196 states and 2925 transitions. [2024-09-12 18:41:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:41:44,603 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.705882352941177) internal successors, (114), 16 states have internal predecessors, (114), 8 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) Word has length 199 [2024-09-12 18:41:44,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:44,608 INFO L225 Difference]: With dead ends: 2196 [2024-09-12 18:41:44,608 INFO L226 Difference]: Without dead ends: 2189 [2024-09-12 18:41:44,609 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:41:44,609 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 86 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:44,609 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 860 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:41:44,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2024-09-12 18:41:45,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2169. [2024-09-12 18:41:45,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 1815 states have (on average 1.2892561983471074) internal successors, (2340), 1846 states have internal predecessors, (2340), 281 states have call successors, (281), 54 states have call predecessors, (281), 53 states have return successors, (278), 268 states have call predecessors, (278), 278 states have call successors, (278) [2024-09-12 18:41:45,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 2899 transitions. [2024-09-12 18:41:45,511 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 2899 transitions. Word has length 199 [2024-09-12 18:41:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:45,511 INFO L474 AbstractCegarLoop]: Abstraction has 2169 states and 2899 transitions. [2024-09-12 18:41:45,511 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.705882352941177) internal successors, (114), 16 states have internal predecessors, (114), 8 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 18:41:45,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:45,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 2899 transitions. [2024-09-12 18:41:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-09-12 18:41:45,513 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:45,513 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:45,528 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:45,713 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:45,714 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:45,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:45,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1021148671, now seen corresponding path program 1 times [2024-09-12 18:41:45,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:45,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183886629] [2024-09-12 18:41:45,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:45,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:41:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:41:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:41:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:41:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:45,957 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:41:45,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:45,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183886629] [2024-09-12 18:41:45,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183886629] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:45,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074191470] [2024-09-12 18:41:45,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:45,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:45,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:45,960 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:45,962 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:41:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:46,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:41:46,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:46,420 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:41:46,420 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:41:46,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074191470] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:46,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:46,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 24 [2024-09-12 18:41:46,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74495199] [2024-09-12 18:41:46,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:46,720 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 18:41:46,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:46,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 18:41:46,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:41:46,723 INFO L87 Difference]: Start difference. First operand 2169 states and 2899 transitions. Second operand has 25 states, 24 states have (on average 12.708333333333334) internal successors, (305), 24 states have internal predecessors, (305), 20 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 20 states have call predecessors, (55), 20 states have call successors, (55) [2024-09-12 18:41:50,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:50,834 INFO L93 Difference]: Finished difference Result 3525 states and 4742 transitions. [2024-09-12 18:41:50,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-09-12 18:41:50,835 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 12.708333333333334) internal successors, (305), 24 states have internal predecessors, (305), 20 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 20 states have call predecessors, (55), 20 states have call successors, (55) Word has length 202 [2024-09-12 18:41:50,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:50,841 INFO L225 Difference]: With dead ends: 3525 [2024-09-12 18:41:50,842 INFO L226 Difference]: Without dead ends: 3523 [2024-09-12 18:41:50,842 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1478 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1216, Invalid=3614, Unknown=0, NotChecked=0, Total=4830 [2024-09-12 18:41:50,843 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 1639 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:50,843 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 1401 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 18:41:50,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2024-09-12 18:41:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 2516. [2024-09-12 18:41:51,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2113 states have (on average 1.2948414576431613) internal successors, (2736), 2145 states have internal predecessors, (2736), 330 states have call successors, (330), 54 states have call predecessors, (330), 53 states have return successors, (327), 316 states have call predecessors, (327), 327 states have call successors, (327) [2024-09-12 18:41:51,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 3393 transitions. [2024-09-12 18:41:51,947 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 3393 transitions. Word has length 202 [2024-09-12 18:41:51,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:51,947 INFO L474 AbstractCegarLoop]: Abstraction has 2516 states and 3393 transitions. [2024-09-12 18:41:51,947 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 12.708333333333334) internal successors, (305), 24 states have internal predecessors, (305), 20 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 20 states have call predecessors, (55), 20 states have call successors, (55) [2024-09-12 18:41:51,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 3393 transitions. [2024-09-12 18:41:51,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-09-12 18:41:51,948 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:51,948 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:51,965 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-09-12 18:41:52,149 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-09-12 18:41:52,149 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:52,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:52,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1670623193, now seen corresponding path program 1 times [2024-09-12 18:41:52,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:52,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071773204] [2024-09-12 18:41:52,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:52,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 18:41:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:41:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 18:41:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,381 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:41:52,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:52,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071773204] [2024-09-12 18:41:52,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071773204] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:52,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227818016] [2024-09-12 18:41:52,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:52,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:52,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:52,384 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:52,385 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 18:41:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:52,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:41:52,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2024-09-12 18:41:52,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:41:52,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227818016] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:41:52,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:52,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-09-12 18:41:52,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063176680] [2024-09-12 18:41:52,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:41:52,502 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:41:52,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:52,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:41:52,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:41:52,503 INFO L87 Difference]: Start difference. First operand 2516 states and 3393 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:41:53,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:53,272 INFO L93 Difference]: Finished difference Result 3120 states and 4196 transitions. [2024-09-12 18:41:53,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:41:53,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 204 [2024-09-12 18:41:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:53,276 INFO L225 Difference]: With dead ends: 3120 [2024-09-12 18:41:53,276 INFO L226 Difference]: Without dead ends: 1489 [2024-09-12 18:41:53,280 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:41:53,280 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 19 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:53,280 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 355 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:41:53,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2024-09-12 18:41:53,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1348. [2024-09-12 18:41:53,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1118 states have (on average 1.2146690518783543) internal successors, (1358), 1139 states have internal predecessors, (1358), 160 states have call successors, (160), 52 states have call predecessors, (160), 50 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-09-12 18:41:53,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1674 transitions. [2024-09-12 18:41:53,963 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1674 transitions. Word has length 204 [2024-09-12 18:41:53,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:53,963 INFO L474 AbstractCegarLoop]: Abstraction has 1348 states and 1674 transitions. [2024-09-12 18:41:53,963 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:41:53,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:53,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1674 transitions. [2024-09-12 18:41:53,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-09-12 18:41:53,964 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:53,964 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:53,976 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-09-12 18:41:54,166 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:54,167 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:54,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:54,167 INFO L85 PathProgramCache]: Analyzing trace with hash -477090035, now seen corresponding path program 1 times [2024-09-12 18:41:54,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:54,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982953483] [2024-09-12 18:41:54,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:54,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:54,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773286441] [2024-09-12 18:41:54,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:54,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:54,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:54,186 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:54,187 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-09-12 18:41:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:54,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:41:54,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:54,840 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:41:54,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:41:54,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:54,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982953483] [2024-09-12 18:41:54,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:54,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773286441] [2024-09-12 18:41:54,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773286441] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:41:54,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:41:54,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-09-12 18:41:54,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384171283] [2024-09-12 18:41:54,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:41:54,841 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:41:54,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:54,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:41:54,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:41:54,842 INFO L87 Difference]: Start difference. First operand 1348 states and 1674 transitions. Second operand has 13 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 18:41:56,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:56,843 INFO L93 Difference]: Finished difference Result 1910 states and 2444 transitions. [2024-09-12 18:41:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:41:56,843 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) Word has length 209 [2024-09-12 18:41:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:56,849 INFO L225 Difference]: With dead ends: 1910 [2024-09-12 18:41:56,849 INFO L226 Difference]: Without dead ends: 1907 [2024-09-12 18:41:56,850 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=198, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:41:56,850 INFO L434 NwaCegarLoop]: 258 mSDtfsCounter, 297 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:56,850 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 1225 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:41:56,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2024-09-12 18:41:57,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1094. [2024-09-12 18:41:57,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 900 states have (on average 1.1755555555555555) internal successors, (1058), 918 states have internal predecessors, (1058), 127 states have call successors, (127), 52 states have call predecessors, (127), 50 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2024-09-12 18:41:57,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1308 transitions. [2024-09-12 18:41:57,428 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1308 transitions. Word has length 209 [2024-09-12 18:41:57,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:57,428 INFO L474 AbstractCegarLoop]: Abstraction has 1094 states and 1308 transitions. [2024-09-12 18:41:57,428 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 18:41:57,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:57,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1308 transitions. [2024-09-12 18:41:57,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-09-12 18:41:57,429 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:57,429 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:57,441 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-09-12 18:41:57,629 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:57,630 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:57,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:57,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1904889046, now seen corresponding path program 1 times [2024-09-12 18:41:57,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:57,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82961767] [2024-09-12 18:41:57,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:57,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:57,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700997804] [2024-09-12 18:41:57,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:57,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:57,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:57,647 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:57,649 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-09-12 18:41:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:41:57,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:41:58,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:58,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:58,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82961767] [2024-09-12 18:41:58,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:58,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700997804] [2024-09-12 18:41:58,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700997804] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:58,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:58,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:41:58,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502129535] [2024-09-12 18:41:58,785 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:58,785 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:41:58,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:58,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:41:58,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:41:58,786 INFO L87 Difference]: Start difference. First operand 1094 states and 1308 transitions. Second operand has 13 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 18:41:59,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:59,903 INFO L93 Difference]: Finished difference Result 1271 states and 1538 transitions. [2024-09-12 18:41:59,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:41:59,904 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) Word has length 210 [2024-09-12 18:41:59,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:59,907 INFO L225 Difference]: With dead ends: 1271 [2024-09-12 18:41:59,907 INFO L226 Difference]: Without dead ends: 1268 [2024-09-12 18:41:59,907 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:41:59,908 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 207 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:59,908 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 454 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:41:59,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-09-12 18:42:00,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1232. [2024-09-12 18:42:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1018 states have (on average 1.1827111984282908) internal successors, (1204), 1036 states have internal predecessors, (1204), 147 states have call successors, (147), 52 states have call predecessors, (147), 50 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2024-09-12 18:42:00,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1494 transitions. [2024-09-12 18:42:00,669 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1494 transitions. Word has length 210 [2024-09-12 18:42:00,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:00,669 INFO L474 AbstractCegarLoop]: Abstraction has 1232 states and 1494 transitions. [2024-09-12 18:42:00,669 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 18:42:00,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:00,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1494 transitions. [2024-09-12 18:42:00,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-09-12 18:42:00,671 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:00,671 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:00,688 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-09-12 18:42:00,871 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-09-12 18:42:00,871 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:00,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:00,872 INFO L85 PathProgramCache]: Analyzing trace with hash -942300212, now seen corresponding path program 1 times [2024-09-12 18:42:00,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:00,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470700120] [2024-09-12 18:42:00,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:00,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:42:00,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097586128] [2024-09-12 18:42:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:00,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:00,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:00,890 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:00,892 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-09-12 18:42:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:00,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:42:00,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:01,825 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:42:01,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:06,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:06,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470700120] [2024-09-12 18:42:06,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:42:06,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097586128] [2024-09-12 18:42:06,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097586128] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:06,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:42:06,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 18:42:06,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670132323] [2024-09-12 18:42:06,644 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:06,645 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:42:06,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:06,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:42:06,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=576, Unknown=2, NotChecked=0, Total=702 [2024-09-12 18:42:06,645 INFO L87 Difference]: Start difference. First operand 1232 states and 1494 transitions. Second operand has 15 states, 14 states have (on average 8.571428571428571) internal successors, (120), 15 states have internal predecessors, (120), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 18:42:08,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:08,469 INFO L93 Difference]: Finished difference Result 1259 states and 1515 transitions. [2024-09-12 18:42:08,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:42:08,469 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.571428571428571) internal successors, (120), 15 states have internal predecessors, (120), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 212 [2024-09-12 18:42:08,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:08,473 INFO L225 Difference]: With dead ends: 1259 [2024-09-12 18:42:08,473 INFO L226 Difference]: Without dead ends: 1256 [2024-09-12 18:42:08,473 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=253, Invalid=1227, Unknown=2, NotChecked=0, Total=1482 [2024-09-12 18:42:08,474 INFO L434 NwaCegarLoop]: 138 mSDtfsCounter, 273 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:08,474 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 820 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1699 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:42:08,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-09-12 18:42:09,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1236. [2024-09-12 18:42:09,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1022 states have (on average 1.1761252446183954) internal successors, (1202), 1040 states have internal predecessors, (1202), 147 states have call successors, (147), 52 states have call predecessors, (147), 50 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2024-09-12 18:42:09,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1492 transitions. [2024-09-12 18:42:09,113 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1492 transitions. Word has length 212 [2024-09-12 18:42:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:09,113 INFO L474 AbstractCegarLoop]: Abstraction has 1236 states and 1492 transitions. [2024-09-12 18:42:09,113 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.571428571428571) internal successors, (120), 15 states have internal predecessors, (120), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 18:42:09,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1492 transitions. [2024-09-12 18:42:09,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-09-12 18:42:09,114 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:09,114 INFO L216 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:09,126 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-09-12 18:42:09,314 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,55 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:09,315 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:09,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:09,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1993348238, now seen corresponding path program 2 times [2024-09-12 18:42:09,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:09,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265324128] [2024-09-12 18:42:09,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:09,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:42:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:42:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:42:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:42:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:42:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:09,570 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 152 proven. 4 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:42:09,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:09,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265324128] [2024-09-12 18:42:09,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265324128] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:09,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389047557] [2024-09-12 18:42:09,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:42:09,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:09,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:09,572 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:09,574 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-09-12 18:42:09,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:42:09,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:42:09,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:42:09,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:09,832 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 747 proven. 1 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 18:42:09,832 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 155 proven. 1 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:42:10,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389047557] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:42:10,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:42:10,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 18 [2024-09-12 18:42:10,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198237732] [2024-09-12 18:42:10,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:10,056 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:42:10,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:10,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:42:10,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:42:10,057 INFO L87 Difference]: Start difference. First operand 1236 states and 1492 transitions. Second operand has 18 states, 18 states have (on average 8.166666666666666) internal successors, (147), 17 states have internal predecessors, (147), 9 states have call successors, (45), 10 states have call predecessors, (45), 9 states have return successors, (43), 8 states have call predecessors, (43), 9 states have call successors, (43) [2024-09-12 18:42:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:10,921 INFO L93 Difference]: Finished difference Result 1358 states and 1596 transitions. [2024-09-12 18:42:10,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 18:42:10,921 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.166666666666666) internal successors, (147), 17 states have internal predecessors, (147), 9 states have call successors, (45), 10 states have call predecessors, (45), 9 states have return successors, (43), 8 states have call predecessors, (43), 9 states have call successors, (43) Word has length 216 [2024-09-12 18:42:10,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:10,925 INFO L225 Difference]: With dead ends: 1358 [2024-09-12 18:42:10,925 INFO L226 Difference]: Without dead ends: 750 [2024-09-12 18:42:10,927 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 463 SyntacticMatches, 12 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=1144, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:42:10,927 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 143 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:10,927 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1089 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:42:10,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-09-12 18:42:11,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 698. [2024-09-12 18:42:11,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 566 states have (on average 1.1113074204946995) internal successors, (629), 579 states have internal predecessors, (629), 70 states have call successors, (70), 52 states have call predecessors, (70), 50 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-09-12 18:42:11,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 765 transitions. [2024-09-12 18:42:11,275 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 765 transitions. Word has length 216 [2024-09-12 18:42:11,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:11,275 INFO L474 AbstractCegarLoop]: Abstraction has 698 states and 765 transitions. [2024-09-12 18:42:11,275 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.166666666666666) internal successors, (147), 17 states have internal predecessors, (147), 9 states have call successors, (45), 10 states have call predecessors, (45), 9 states have return successors, (43), 8 states have call predecessors, (43), 9 states have call successors, (43) [2024-09-12 18:42:11,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:11,275 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 765 transitions. [2024-09-12 18:42:11,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-09-12 18:42:11,276 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:11,276 INFO L216 NwaCegarLoop]: trace histogram [19, 18, 18, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:11,288 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-09-12 18:42:11,476 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,56 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:11,477 INFO L399 AbstractCegarLoop]: === Iteration 70 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:11,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:11,477 INFO L85 PathProgramCache]: Analyzing trace with hash -639714126, now seen corresponding path program 1 times [2024-09-12 18:42:11,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:11,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476380964] [2024-09-12 18:42:11,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:11,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:42:11,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937912787] [2024-09-12 18:42:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:11,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:11,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:11,494 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:11,496 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-09-12 18:42:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:11,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-12 18:42:11,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:12,396 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 36 proven. 170 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:42:12,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:12,906 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 36 proven. 170 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:42:12,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:12,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476380964] [2024-09-12 18:42:12,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:42:12,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937912787] [2024-09-12 18:42:12,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937912787] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:42:12,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:42:12,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 27 [2024-09-12 18:42:12,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522830277] [2024-09-12 18:42:12,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:12,907 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 18:42:12,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:12,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 18:42:12,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=589, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:42:12,908 INFO L87 Difference]: Start difference. First operand 698 states and 765 transitions. Second operand has 27 states, 27 states have (on average 8.296296296296296) internal successors, (224), 26 states have internal predecessors, (224), 12 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) [2024-09-12 18:42:15,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:15,067 INFO L93 Difference]: Finished difference Result 700 states and 766 transitions. [2024-09-12 18:42:15,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:42:15,068 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 8.296296296296296) internal successors, (224), 26 states have internal predecessors, (224), 12 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) Word has length 216 [2024-09-12 18:42:15,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:15,071 INFO L225 Difference]: With dead ends: 700 [2024-09-12 18:42:15,071 INFO L226 Difference]: Without dead ends: 680 [2024-09-12 18:42:15,071 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 403 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=187, Invalid=869, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 18:42:15,071 INFO L434 NwaCegarLoop]: 75 mSDtfsCounter, 247 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 2342 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 2407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:15,072 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1137 Invalid, 2407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2342 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 18:42:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-09-12 18:42:15,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 659. [2024-09-12 18:42:15,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 531 states have (on average 1.0960451977401129) internal successors, (582), 541 states have internal predecessors, (582), 67 states have call successors, (67), 51 states have call predecessors, (67), 50 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-09-12 18:42:15,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 715 transitions. [2024-09-12 18:42:15,364 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 715 transitions. Word has length 216 [2024-09-12 18:42:15,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:15,365 INFO L474 AbstractCegarLoop]: Abstraction has 659 states and 715 transitions. [2024-09-12 18:42:15,365 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.296296296296296) internal successors, (224), 26 states have internal predecessors, (224), 12 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) [2024-09-12 18:42:15,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 715 transitions. [2024-09-12 18:42:15,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-09-12 18:42:15,366 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:15,366 INFO L216 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:15,380 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-09-12 18:42:15,567 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-09-12 18:42:15,567 INFO L399 AbstractCegarLoop]: === Iteration 71 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:15,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:15,567 INFO L85 PathProgramCache]: Analyzing trace with hash 118302427, now seen corresponding path program 2 times [2024-09-12 18:42:15,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:15,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945081403] [2024-09-12 18:42:15,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:15,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 18:42:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:42:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:42:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:42:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 18:42:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:15,847 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 157 proven. 7 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:42:15,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:15,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945081403] [2024-09-12 18:42:15,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945081403] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:15,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191026202] [2024-09-12 18:42:15,847 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:42:15,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:15,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:15,849 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:15,851 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-09-12 18:42:15,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:42:15,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:42:15,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:42:15,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 753 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 18:42:16,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:16,323 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 161 proven. 3 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:42:16,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191026202] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:42:16,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:42:16,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 18 [2024-09-12 18:42:16,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362322739] [2024-09-12 18:42:16,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:16,324 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:42:16,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:16,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:42:16,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:42:16,324 INFO L87 Difference]: Start difference. First operand 659 states and 715 transitions. Second operand has 18 states, 18 states have (on average 8.5) internal successors, (153), 17 states have internal predecessors, (153), 9 states have call successors, (45), 10 states have call predecessors, (45), 9 states have return successors, (43), 8 states have call predecessors, (43), 9 states have call successors, (43) [2024-09-12 18:42:16,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:16,846 INFO L93 Difference]: Finished difference Result 671 states and 725 transitions. [2024-09-12 18:42:16,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 18:42:16,847 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.5) internal successors, (153), 17 states have internal predecessors, (153), 9 states have call successors, (45), 10 states have call predecessors, (45), 9 states have return successors, (43), 8 states have call predecessors, (43), 9 states have call successors, (43) Word has length 222 [2024-09-12 18:42:16,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:16,849 INFO L225 Difference]: With dead ends: 671 [2024-09-12 18:42:16,850 INFO L226 Difference]: Without dead ends: 402 [2024-09-12 18:42:16,850 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 473 SyntacticMatches, 12 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=217, Invalid=905, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:42:16,850 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 75 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:16,850 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 844 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:42:16,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-09-12 18:42:17,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2024-09-12 18:42:17,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 323 states have (on average 1.0743034055727554) internal successors, (347), 328 states have internal predecessors, (347), 45 states have call successors, (45), 29 states have call predecessors, (45), 28 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:42:17,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 436 transitions. [2024-09-12 18:42:17,017 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 436 transitions. Word has length 222 [2024-09-12 18:42:17,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:17,017 INFO L474 AbstractCegarLoop]: Abstraction has 402 states and 436 transitions. [2024-09-12 18:42:17,018 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.5) internal successors, (153), 17 states have internal predecessors, (153), 9 states have call successors, (45), 10 states have call predecessors, (45), 9 states have return successors, (43), 8 states have call predecessors, (43), 9 states have call successors, (43) [2024-09-12 18:42:17,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:17,018 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 436 transitions. [2024-09-12 18:42:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-09-12 18:42:17,018 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:17,019 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:17,031 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-09-12 18:42:17,219 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,58 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:17,219 INFO L399 AbstractCegarLoop]: === Iteration 72 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:17,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:17,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1673898884, now seen corresponding path program 1 times [2024-09-12 18:42:17,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:17,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119082943] [2024-09-12 18:42:17,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:17,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:42:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:42:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:42:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:42:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:42:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:42:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:42:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:42:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 269 proven. 4 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:42:17,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:17,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119082943] [2024-09-12 18:42:17,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119082943] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:17,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143107185] [2024-09-12 18:42:17,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:17,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:17,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:17,482 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:17,483 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-09-12 18:42:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:17,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:42:17,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 1069 proven. 4 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 18:42:17,807 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 269 proven. 4 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:42:18,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143107185] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:42:18,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:42:18,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 18 [2024-09-12 18:42:18,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35629039] [2024-09-12 18:42:18,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:18,051 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:42:18,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:18,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:42:18,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:42:18,051 INFO L87 Difference]: Start difference. First operand 402 states and 436 transitions. Second operand has 18 states, 18 states have (on average 9.11111111111111) internal successors, (164), 17 states have internal predecessors, (164), 9 states have call successors, (51), 10 states have call predecessors, (51), 9 states have return successors, (49), 8 states have call predecessors, (49), 9 states have call successors, (49) [2024-09-12 18:42:18,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:18,434 INFO L93 Difference]: Finished difference Result 402 states and 436 transitions. [2024-09-12 18:42:18,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 18:42:18,434 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.11111111111111) internal successors, (164), 17 states have internal predecessors, (164), 9 states have call successors, (51), 10 states have call predecessors, (51), 9 states have return successors, (49), 8 states have call predecessors, (49), 9 states have call successors, (49) Word has length 248 [2024-09-12 18:42:18,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:18,436 INFO L225 Difference]: With dead ends: 402 [2024-09-12 18:42:18,437 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:42:18,438 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 531 SyntacticMatches, 12 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:42:18,438 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 31 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:18,438 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 737 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:42:18,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:42:18,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:42:18,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 18:42:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:42:18,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2024-09-12 18:42:18,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:18,440 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:42:18,440 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.11111111111111) internal successors, (164), 17 states have internal predecessors, (164), 9 states have call successors, (51), 10 states have call predecessors, (51), 9 states have return successors, (49), 8 states have call predecessors, (49), 9 states have call successors, (49) [2024-09-12 18:42:18,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:42:18,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:42:18,443 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 35 remaining) [2024-09-12 18:42:18,444 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 35 remaining) [2024-09-12 18:42:18,444 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 35 remaining) [2024-09-12 18:42:18,444 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 35 remaining) [2024-09-12 18:42:18,444 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 35 remaining) [2024-09-12 18:42:18,444 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 35 remaining) [2024-09-12 18:42:18,444 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 35 remaining) [2024-09-12 18:42:18,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 35 remaining) [2024-09-12 18:42:18,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 35 remaining) [2024-09-12 18:42:18,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 35 remaining) [2024-09-12 18:42:18,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 35 remaining) [2024-09-12 18:42:18,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 35 remaining) [2024-09-12 18:42:18,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 35 remaining) [2024-09-12 18:42:18,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 35 remaining) [2024-09-12 18:42:18,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 35 remaining) [2024-09-12 18:42:18,446 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 35 remaining) [2024-09-12 18:42:18,446 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 35 remaining) [2024-09-12 18:42:18,446 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 35 remaining) [2024-09-12 18:42:18,446 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 35 remaining) [2024-09-12 18:42:18,446 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 35 remaining) [2024-09-12 18:42:18,446 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 35 remaining) [2024-09-12 18:42:18,446 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 35 remaining) [2024-09-12 18:42:18,446 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 35 remaining) [2024-09-12 18:42:18,447 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 35 remaining) [2024-09-12 18:42:18,447 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 35 remaining) [2024-09-12 18:42:18,447 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 35 remaining) [2024-09-12 18:42:18,447 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 35 remaining) [2024-09-12 18:42:18,447 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 35 remaining) [2024-09-12 18:42:18,447 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 35 remaining) [2024-09-12 18:42:18,447 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 35 remaining) [2024-09-12 18:42:18,447 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 35 remaining) [2024-09-12 18:42:18,448 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 35 remaining) [2024-09-12 18:42:18,448 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 35 remaining) [2024-09-12 18:42:18,448 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 35 remaining) [2024-09-12 18:42:18,448 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 35 remaining) [2024-09-12 18:42:18,462 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-09-12 18:42:18,648 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,59 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:18,651 INFO L408 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:18,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.