./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound5.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/cohencu-ll_valuebound5.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 ad40c7e9e7b0c80b1cec1e361a82d834fdd8270143479aa0f4bf8bc2b59c2aa5 --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 18:36:33,250 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:36:33,308 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:36:33,312 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:36:33,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:36:33,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:36:33,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:36:33,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:36:33,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:36:33,332 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:36:33,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:36:33,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:36:33,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:36:33,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:36:33,334 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:36:33,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:36:33,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:36:33,336 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:36:33,336 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:36:33,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:36:33,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:36:33,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:36:33,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:36:33,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:36:33,341 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:36:33,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:36:33,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:36:33,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:36:33,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:36:33,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:36:33,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:36:33,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:36:33,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:36:33,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:36:33,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:36:33,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:36:33,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:36:33,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:36:33,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:36:33,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:36:33,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:36:33,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:36:33,349 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad40c7e9e7b0c80b1cec1e361a82d834fdd8270143479aa0f4bf8bc2b59c2aa5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:36:33,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:36:33,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:36:33,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:36:33,634 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:36:33,635 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:36:33,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound5.c [2024-09-12 18:36:34,925 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:36:35,094 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:36:35,095 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound5.c [2024-09-12 18:36:35,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/c7b5f78de/1da3518413764a4289796d33b3bc7929/FLAGf12187f0a [2024-09-12 18:36:35,488 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/c7b5f78de/1da3518413764a4289796d33b3bc7929 [2024-09-12 18:36:35,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:36:35,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:36:35,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:36:35,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:36:35,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:36:35,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4a512b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35, skipping insertion in model container [2024-09-12 18:36:35,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:36:35,613 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/cohencu-ll_valuebound5.c[588,601] [2024-09-12 18:36:35,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:36:35,642 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:36:35,650 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/cohencu-ll_valuebound5.c[588,601] [2024-09-12 18:36:35,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:36:35,670 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:36:35,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35 WrapperNode [2024-09-12 18:36:35,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:36:35,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:36:35,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:36:35,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:36:35,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,686 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:36:35,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:36:35,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:36:35,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:36:35,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:36:35,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,696 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,705 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 18:36:35,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:36:35,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:36:35,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:36:35,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:36:35,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (1/1) ... [2024-09-12 18:36:35,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:36:35,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:35,740 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 18:36:35,743 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 18:36:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:36:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:36:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:36:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:36:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:36:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:36:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:36:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:36:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:36:35,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:36:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:36:35,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:36:35,829 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:36:35,831 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:36:36,719 INFO L? ?]: Removed 237 outVars from TransFormulas that were not future-live. [2024-09-12 18:36:36,721 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:36:36,761 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:36:36,763 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:36:36,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:36:36 BoogieIcfgContainer [2024-09-12 18:36:36,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:36:36,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:36:36,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:36:36,768 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:36:36,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:36:35" (1/3) ... [2024-09-12 18:36:36,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795d6ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:36:36, skipping insertion in model container [2024-09-12 18:36:36,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:36:35" (2/3) ... [2024-09-12 18:36:36,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795d6ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:36:36, skipping insertion in model container [2024-09-12 18:36:36,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:36:36" (3/3) ... [2024-09-12 18:36:36,770 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound5.c [2024-09-12 18:36:36,782 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:36:36,783 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 139 error locations. [2024-09-12 18:36:36,835 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:36:36,840 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;@26793988, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:36:36,841 INFO L337 AbstractCegarLoop]: Starting to check reachability of 139 error locations. [2024-09-12 18:36:36,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 310 states, 152 states have (on average 1.9473684210526316) internal successors, (296), 291 states have internal predecessors, (296), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:36:36,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:36:36,852 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:36,853 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:36,853 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:36,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:36,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1218076006, now seen corresponding path program 1 times [2024-09-12 18:36:36,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:36,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890212723] [2024-09-12 18:36:36,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:36,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:36,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:36,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:36,986 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 18:36:36,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:36,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890212723] [2024-09-12 18:36:36,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890212723] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:36,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:36,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:36:36,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630017067] [2024-09-12 18:36:36,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:36,997 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:36:36,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:37,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:36:37,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:36:37,023 INFO L87 Difference]: Start difference. First operand has 310 states, 152 states have (on average 1.9473684210526316) internal successors, (296), 291 states have internal predecessors, (296), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:36:37,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:37,074 INFO L93 Difference]: Finished difference Result 605 states and 650 transitions. [2024-09-12 18:36:37,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:36:37,076 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 18:36:37,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:37,088 INFO L225 Difference]: With dead ends: 605 [2024-09-12 18:36:37,088 INFO L226 Difference]: Without dead ends: 299 [2024-09-12 18:36:37,093 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:36:37,097 INFO L434 NwaCegarLoop]: 311 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:37,097 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 311 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:36:37,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-09-12 18:36:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-09-12 18:36:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 150 states have (on average 1.8866666666666667) internal successors, (283), 282 states have internal predecessors, (283), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:36:37,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 309 transitions. [2024-09-12 18:36:37,145 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 309 transitions. Word has length 13 [2024-09-12 18:36:37,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:37,146 INFO L474 AbstractCegarLoop]: Abstraction has 299 states and 309 transitions. [2024-09-12 18:36:37,146 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:36:37,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 309 transitions. [2024-09-12 18:36:37,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:36:37,148 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:37,148 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:37,148 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:36:37,149 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:37,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:37,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1275330467, now seen corresponding path program 1 times [2024-09-12 18:36:37,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:37,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649121685] [2024-09-12 18:36:37,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:37,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:37,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:37,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:37,220 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 18:36:37,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:37,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649121685] [2024-09-12 18:36:37,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649121685] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:37,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:37,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:36:37,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664422741] [2024-09-12 18:36:37,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:37,222 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:36:37,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:37,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:36:37,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:37,223 INFO L87 Difference]: Start difference. First operand 299 states and 309 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:36:37,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:37,410 INFO L93 Difference]: Finished difference Result 569 states and 590 transitions. [2024-09-12 18:36:37,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:36:37,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 18:36:37,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:37,415 INFO L225 Difference]: With dead ends: 569 [2024-09-12 18:36:37,416 INFO L226 Difference]: Without dead ends: 549 [2024-09-12 18:36:37,416 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 18:36:37,417 INFO L434 NwaCegarLoop]: 282 mSDtfsCounter, 238 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:37,418 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 542 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:36:37,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-09-12 18:36:37,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 358. [2024-09-12 18:36:37,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 204 states have (on average 1.7892156862745099) internal successors, (365), 336 states have internal predecessors, (365), 19 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:36:37,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 401 transitions. [2024-09-12 18:36:37,453 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 401 transitions. Word has length 13 [2024-09-12 18:36:37,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:37,454 INFO L474 AbstractCegarLoop]: Abstraction has 358 states and 401 transitions. [2024-09-12 18:36:37,454 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:36:37,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 401 transitions. [2024-09-12 18:36:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 18:36:37,455 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:37,455 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:37,455 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:36:37,455 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:37,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:37,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1856919317, now seen corresponding path program 1 times [2024-09-12 18:36:37,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:37,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789581795] [2024-09-12 18:36:37,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:37,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:37,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:37,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:37,645 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 18:36:37,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:37,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789581795] [2024-09-12 18:36:37,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789581795] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:37,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:37,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:36:37,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390725760] [2024-09-12 18:36:37,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:37,647 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:36:37,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:37,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:36:37,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:36:37,649 INFO L87 Difference]: Start difference. First operand 358 states and 401 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 18:36:41,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:41,124 INFO L93 Difference]: Finished difference Result 481 states and 575 transitions. [2024-09-12 18:36:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:36:41,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 20 [2024-09-12 18:36:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:41,131 INFO L225 Difference]: With dead ends: 481 [2024-09-12 18:36:41,131 INFO L226 Difference]: Without dead ends: 479 [2024-09-12 18:36:41,131 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 18:36:41,132 INFO L434 NwaCegarLoop]: 128 mSDtfsCounter, 163 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:41,135 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 473 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-09-12 18:36:41,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-09-12 18:36:41,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 363. [2024-09-12 18:36:41,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 207 states have (on average 1.7777777777777777) internal successors, (368), 340 states have internal predecessors, (368), 20 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 18:36:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 406 transitions. [2024-09-12 18:36:41,182 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 406 transitions. Word has length 20 [2024-09-12 18:36:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:41,183 INFO L474 AbstractCegarLoop]: Abstraction has 363 states and 406 transitions. [2024-09-12 18:36:41,183 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 18:36:41,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:41,183 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 406 transitions. [2024-09-12 18:36:41,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:36:41,184 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:41,184 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:41,184 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:36:41,185 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:41,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:41,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1544609214, now seen corresponding path program 1 times [2024-09-12 18:36:41,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:41,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641182627] [2024-09-12 18:36:41,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:41,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:41,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1869588581] [2024-09-12 18:36:41,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:41,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:41,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:41,214 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 18:36:41,215 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 18:36:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:41,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:36:41,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:41,399 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 18:36:41,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:36:41,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:41,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641182627] [2024-09-12 18:36:41,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:41,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869588581] [2024-09-12 18:36:41,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869588581] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:41,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:41,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:36:41,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395836945] [2024-09-12 18:36:41,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:41,403 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:36:41,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:41,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:36:41,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:36:41,405 INFO L87 Difference]: Start difference. First operand 363 states and 406 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 18:36:42,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:42,202 INFO L93 Difference]: Finished difference Result 517 states and 578 transitions. [2024-09-12 18:36:42,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:36:42,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 35 [2024-09-12 18:36:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:42,204 INFO L225 Difference]: With dead ends: 517 [2024-09-12 18:36:42,204 INFO L226 Difference]: Without dead ends: 494 [2024-09-12 18:36:42,205 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 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 18:36:42,205 INFO L434 NwaCegarLoop]: 176 mSDtfsCounter, 164 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:42,206 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 638 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:36:42,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-09-12 18:36:42,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 443. [2024-09-12 18:36:42,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 282 states have (on average 1.7446808510638299) internal successors, (492), 414 states have internal predecessors, (492), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:42,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 538 transitions. [2024-09-12 18:36:42,226 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 538 transitions. Word has length 35 [2024-09-12 18:36:42,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:42,226 INFO L474 AbstractCegarLoop]: Abstraction has 443 states and 538 transitions. [2024-09-12 18:36:42,227 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 18:36:42,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:42,227 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 538 transitions. [2024-09-12 18:36:42,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 18:36:42,228 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:42,228 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, 1, 1] [2024-09-12 18:36:42,245 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 18:36:42,428 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:42,429 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:42,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:42,429 INFO L85 PathProgramCache]: Analyzing trace with hash -166607003, now seen corresponding path program 1 times [2024-09-12 18:36:42,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:42,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829511506] [2024-09-12 18:36:42,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:42,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:42,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579175038] [2024-09-12 18:36:42,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:42,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:42,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:42,463 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 18:36:42,468 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 18:36:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:42,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:36:42,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:42,581 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 18:36:42,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:36:42,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:42,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829511506] [2024-09-12 18:36:42,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:42,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579175038] [2024-09-12 18:36:42,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579175038] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:42,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:42,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:36:42,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440045592] [2024-09-12 18:36:42,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:42,584 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:36:42,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:42,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:36:42,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:36:42,585 INFO L87 Difference]: Start difference. First operand 443 states and 538 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:36:43,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:43,227 INFO L93 Difference]: Finished difference Result 519 states and 560 transitions. [2024-09-12 18:36:43,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:36:43,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-09-12 18:36:43,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:43,230 INFO L225 Difference]: With dead ends: 519 [2024-09-12 18:36:43,230 INFO L226 Difference]: Without dead ends: 494 [2024-09-12 18:36:43,244 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 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 18:36:43,244 INFO L434 NwaCegarLoop]: 212 mSDtfsCounter, 156 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:43,245 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 785 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:36:43,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-09-12 18:36:43,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 447. [2024-09-12 18:36:43,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 285 states have (on average 1.656140350877193) internal successors, (472), 417 states have internal predecessors, (472), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:43,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 518 transitions. [2024-09-12 18:36:43,262 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 518 transitions. Word has length 44 [2024-09-12 18:36:43,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:43,262 INFO L474 AbstractCegarLoop]: Abstraction has 447 states and 518 transitions. [2024-09-12 18:36:43,262 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:36:43,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:43,263 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 518 transitions. [2024-09-12 18:36:43,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:36:43,263 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:43,264 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:43,278 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 18:36:43,464 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:43,465 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:43,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:43,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1195375443, now seen corresponding path program 1 times [2024-09-12 18:36:43,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:43,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3683907] [2024-09-12 18:36:43,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:43,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:43,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976650791] [2024-09-12 18:36:43,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:43,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:43,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:43,486 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 18:36:43,487 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 18:36:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:43,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:36:43,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:43,658 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:36:43,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:36:43,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:43,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3683907] [2024-09-12 18:36:43,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:43,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976650791] [2024-09-12 18:36:43,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976650791] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:43,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:43,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:36:43,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292815875] [2024-09-12 18:36:43,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:43,659 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:36:43,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:43,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:36:43,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:43,660 INFO L87 Difference]: Start difference. First operand 447 states and 518 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:44,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:44,338 INFO L93 Difference]: Finished difference Result 498 states and 543 transitions. [2024-09-12 18:36:44,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:36:44,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-09-12 18:36:44,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:44,341 INFO L225 Difference]: With dead ends: 498 [2024-09-12 18:36:44,341 INFO L226 Difference]: Without dead ends: 464 [2024-09-12 18:36:44,341 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 18:36:44,342 INFO L434 NwaCegarLoop]: 185 mSDtfsCounter, 123 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:44,342 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 298 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:36:44,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-09-12 18:36:44,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 455. [2024-09-12 18:36:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 293 states have (on average 1.5494880546075085) internal successors, (454), 425 states have internal predecessors, (454), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:44,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 500 transitions. [2024-09-12 18:36:44,376 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 500 transitions. Word has length 46 [2024-09-12 18:36:44,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:44,376 INFO L474 AbstractCegarLoop]: Abstraction has 455 states and 500 transitions. [2024-09-12 18:36:44,376 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:44,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:44,376 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 500 transitions. [2024-09-12 18:36:44,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:36:44,377 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:44,377 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:44,390 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 18:36:44,581 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:36:44,582 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:44,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:44,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1697546639, now seen corresponding path program 1 times [2024-09-12 18:36:44,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:44,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129790503] [2024-09-12 18:36:44,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:44,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:44,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:44,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:44,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:44,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:44,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:44,645 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:36:44,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:44,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129790503] [2024-09-12 18:36:44,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129790503] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:44,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:44,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:36:44,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846009147] [2024-09-12 18:36:44,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:44,646 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:36:44,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:44,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:36:44,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:36:44,647 INFO L87 Difference]: Start difference. First operand 455 states and 500 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:45,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:45,702 INFO L93 Difference]: Finished difference Result 468 states and 509 transitions. [2024-09-12 18:36:45,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:36:45,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-09-12 18:36:45,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:45,704 INFO L225 Difference]: With dead ends: 468 [2024-09-12 18:36:45,704 INFO L226 Difference]: Without dead ends: 466 [2024-09-12 18:36:45,705 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 18:36:45,705 INFO L434 NwaCegarLoop]: 177 mSDtfsCounter, 255 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:45,705 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 387 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:36:45,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-09-12 18:36:45,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 455. [2024-09-12 18:36:45,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 293 states have (on average 1.5426621160409557) internal successors, (452), 425 states have internal predecessors, (452), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 498 transitions. [2024-09-12 18:36:45,747 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 498 transitions. Word has length 50 [2024-09-12 18:36:45,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:45,747 INFO L474 AbstractCegarLoop]: Abstraction has 455 states and 498 transitions. [2024-09-12 18:36:45,747 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:45,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:45,747 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 498 transitions. [2024-09-12 18:36:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 18:36:45,751 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:45,751 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:45,751 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:36:45,751 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:45,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1084338152, now seen corresponding path program 1 times [2024-09-12 18:36:45,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:45,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28300987] [2024-09-12 18:36:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:45,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:45,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:45,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:45,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:45,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:45,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:36:45,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:45,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28300987] [2024-09-12 18:36:45,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28300987] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:45,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:45,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:36:45,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763882820] [2024-09-12 18:36:45,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:45,846 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:36:45,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:45,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:36:45,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:36:45,846 INFO L87 Difference]: Start difference. First operand 455 states and 498 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:49,166 INFO L93 Difference]: Finished difference Result 468 states and 507 transitions. [2024-09-12 18:36:49,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:36:49,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2024-09-12 18:36:49,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:49,170 INFO L225 Difference]: With dead ends: 468 [2024-09-12 18:36:49,170 INFO L226 Difference]: Without dead ends: 466 [2024-09-12 18:36:49,170 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 18:36:49,171 INFO L434 NwaCegarLoop]: 179 mSDtfsCounter, 138 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:49,171 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 478 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-09-12 18:36:49,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-09-12 18:36:49,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 455. [2024-09-12 18:36:49,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 293 states have (on average 1.5358361774744027) internal successors, (450), 425 states have internal predecessors, (450), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 496 transitions. [2024-09-12 18:36:49,223 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 496 transitions. Word has length 51 [2024-09-12 18:36:49,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:49,223 INFO L474 AbstractCegarLoop]: Abstraction has 455 states and 496 transitions. [2024-09-12 18:36:49,223 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:49,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:49,223 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 496 transitions. [2024-09-12 18:36:49,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 18:36:49,224 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:49,224 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:49,224 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:36:49,224 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:49,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:49,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1068746699, now seen corresponding path program 1 times [2024-09-12 18:36:49,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:49,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227450754] [2024-09-12 18:36:49,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:49,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:49,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058248819] [2024-09-12 18:36:49,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:49,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:49,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:49,243 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 18:36:49,246 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 18:36:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:49,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:36:49,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:36:49,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:36:49,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:49,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227450754] [2024-09-12 18:36:49,403 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:49,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058248819] [2024-09-12 18:36:49,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058248819] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:49,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:49,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:36:49,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684729373] [2024-09-12 18:36:49,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:49,404 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:36:49,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:36:49,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:49,404 INFO L87 Difference]: Start difference. First operand 455 states and 496 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:49,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:49,857 INFO L93 Difference]: Finished difference Result 473 states and 505 transitions. [2024-09-12 18:36:49,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:36:49,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2024-09-12 18:36:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:49,860 INFO L225 Difference]: With dead ends: 473 [2024-09-12 18:36:49,860 INFO L226 Difference]: Without dead ends: 464 [2024-09-12 18:36:49,860 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:49,861 INFO L434 NwaCegarLoop]: 188 mSDtfsCounter, 113 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:49,861 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 277 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:36:49,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-09-12 18:36:49,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 458. [2024-09-12 18:36:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 296 states have (on average 1.510135135135135) internal successors, (447), 428 states have internal predecessors, (447), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:49,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 493 transitions. [2024-09-12 18:36:49,900 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 493 transitions. Word has length 54 [2024-09-12 18:36:49,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:49,901 INFO L474 AbstractCegarLoop]: Abstraction has 458 states and 493 transitions. [2024-09-12 18:36:49,901 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:49,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:49,901 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 493 transitions. [2024-09-12 18:36:49,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:36:49,902 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:49,902 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:49,917 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 18:36:50,102 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:50,104 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:50,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:50,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1228590812, now seen corresponding path program 1 times [2024-09-12 18:36:50,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:50,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393067641] [2024-09-12 18:36:50,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:50,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:50,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:50,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:50,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:50,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:50,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:36:50,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:50,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393067641] [2024-09-12 18:36:50,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393067641] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:50,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:50,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:36:50,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258281401] [2024-09-12 18:36:50,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:50,204 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:36:50,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:50,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:36:50,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:36:50,208 INFO L87 Difference]: Start difference. First operand 458 states and 493 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:50,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:50,985 INFO L93 Difference]: Finished difference Result 472 states and 496 transitions. [2024-09-12 18:36:50,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:36:50,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-09-12 18:36:50,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:50,987 INFO L225 Difference]: With dead ends: 472 [2024-09-12 18:36:50,988 INFO L226 Difference]: Without dead ends: 466 [2024-09-12 18:36:50,989 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 18:36:50,989 INFO L434 NwaCegarLoop]: 194 mSDtfsCounter, 134 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:50,989 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 414 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:36:50,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-09-12 18:36:51,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 458. [2024-09-12 18:36:51,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 296 states have (on average 1.489864864864865) internal successors, (441), 428 states have internal predecessors, (441), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 487 transitions. [2024-09-12 18:36:51,026 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 487 transitions. Word has length 55 [2024-09-12 18:36:51,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:51,027 INFO L474 AbstractCegarLoop]: Abstraction has 458 states and 487 transitions. [2024-09-12 18:36:51,027 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:51,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 487 transitions. [2024-09-12 18:36:51,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:36:51,028 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:51,028 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:51,028 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 18:36:51,028 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:51,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:51,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2138443168, now seen corresponding path program 1 times [2024-09-12 18:36:51,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:51,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359855183] [2024-09-12 18:36:51,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:51,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:51,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:51,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:51,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:51,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:51,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:51,107 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:36:51,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:51,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359855183] [2024-09-12 18:36:51,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359855183] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:51,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:51,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:36:51,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628087784] [2024-09-12 18:36:51,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:51,108 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:36:51,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:51,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:36:51,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:36:51,109 INFO L87 Difference]: Start difference. First operand 458 states and 487 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:51,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:51,744 INFO L93 Difference]: Finished difference Result 470 states and 490 transitions. [2024-09-12 18:36:51,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:36:51,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-09-12 18:36:51,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:51,764 INFO L225 Difference]: With dead ends: 470 [2024-09-12 18:36:51,764 INFO L226 Difference]: Without dead ends: 464 [2024-09-12 18:36:51,764 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 18:36:51,765 INFO L434 NwaCegarLoop]: 200 mSDtfsCounter, 228 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:51,765 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 289 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:36:51,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-09-12 18:36:51,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 459. [2024-09-12 18:36:51,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 297 states have (on average 1.4713804713804715) internal successors, (437), 429 states have internal predecessors, (437), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:36:51,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 483 transitions. [2024-09-12 18:36:51,794 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 483 transitions. Word has length 59 [2024-09-12 18:36:51,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:51,795 INFO L474 AbstractCegarLoop]: Abstraction has 459 states and 483 transitions. [2024-09-12 18:36:51,795 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:51,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 483 transitions. [2024-09-12 18:36:51,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:36:51,796 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:51,796 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:51,796 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 18:36:51,797 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:51,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:51,799 INFO L85 PathProgramCache]: Analyzing trace with hash 693285102, now seen corresponding path program 1 times [2024-09-12 18:36:51,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:51,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116802256] [2024-09-12 18:36:51,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:51,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:51,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10909958] [2024-09-12 18:36:51,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:51,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:51,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:51,820 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 18:36:51,822 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 18:36:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:51,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:36:51,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:52,024 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:36:52,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:36:52,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:52,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116802256] [2024-09-12 18:36:52,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:52,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10909958] [2024-09-12 18:36:52,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10909958] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:52,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:52,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:36:52,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444397365] [2024-09-12 18:36:52,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:52,025 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:36:52,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:52,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:36:52,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:36:52,026 INFO L87 Difference]: Start difference. First operand 459 states and 483 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:52,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:52,732 INFO L93 Difference]: Finished difference Result 474 states and 492 transitions. [2024-09-12 18:36:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:36:52,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 65 [2024-09-12 18:36:52,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:52,734 INFO L225 Difference]: With dead ends: 474 [2024-09-12 18:36:52,734 INFO L226 Difference]: Without dead ends: 404 [2024-09-12 18:36:52,734 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 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 18:36:52,735 INFO L434 NwaCegarLoop]: 195 mSDtfsCounter, 108 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:52,735 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 659 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:36:52,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-09-12 18:36:52,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 400. [2024-09-12 18:36:52,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 239 states have (on average 1.5815899581589958) internal successors, (378), 371 states have internal predecessors, (378), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:36:52,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 418 transitions. [2024-09-12 18:36:52,751 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 418 transitions. Word has length 65 [2024-09-12 18:36:52,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:52,752 INFO L474 AbstractCegarLoop]: Abstraction has 400 states and 418 transitions. [2024-09-12 18:36:52,752 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:36:52,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:52,752 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 418 transitions. [2024-09-12 18:36:52,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 18:36:52,753 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:52,753 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, 1, 1, 1, 1, 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 18:36:52,766 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 18:36:52,957 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 18:36:52,958 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:52,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:52,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1479527842, now seen corresponding path program 1 times [2024-09-12 18:36:52,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:52,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752538204] [2024-09-12 18:36:52,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:52,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,054 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 18:36:53,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:53,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752538204] [2024-09-12 18:36:53,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752538204] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:53,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:53,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:36:53,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694224126] [2024-09-12 18:36:53,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:53,056 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:36:53,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:53,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:36:53,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:53,056 INFO L87 Difference]: Start difference. First operand 400 states and 418 transitions. Second operand has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:36:53,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:53,575 INFO L93 Difference]: Finished difference Result 400 states and 418 transitions. [2024-09-12 18:36:53,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:36:53,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2024-09-12 18:36:53,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:53,577 INFO L225 Difference]: With dead ends: 400 [2024-09-12 18:36:53,578 INFO L226 Difference]: Without dead ends: 393 [2024-09-12 18:36:53,578 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:53,578 INFO L434 NwaCegarLoop]: 150 mSDtfsCounter, 139 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:53,578 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 174 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:36:53,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-09-12 18:36:53,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-09-12 18:36:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 239 states have (on average 1.5523012552301256) internal successors, (371), 364 states have internal predecessors, (371), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:36:53,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 411 transitions. [2024-09-12 18:36:53,595 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 411 transitions. Word has length 91 [2024-09-12 18:36:53,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:53,595 INFO L474 AbstractCegarLoop]: Abstraction has 393 states and 411 transitions. [2024-09-12 18:36:53,595 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:36:53,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:53,596 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 411 transitions. [2024-09-12 18:36:53,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-09-12 18:36:53,596 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:53,596 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, 1, 1, 1, 1, 1, 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 18:36:53,597 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 18:36:53,597 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:53,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:53,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1379276982, now seen corresponding path program 1 times [2024-09-12 18:36:53,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:53,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563470455] [2024-09-12 18:36:53,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:53,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:53,648 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 18:36:53,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:53,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563470455] [2024-09-12 18:36:53,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563470455] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:53,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:53,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:36:53,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437785312] [2024-09-12 18:36:53,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:53,650 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:36:53,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:53,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:36:53,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:53,651 INFO L87 Difference]: Start difference. First operand 393 states and 411 transitions. Second operand has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:36:54,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:54,132 INFO L93 Difference]: Finished difference Result 400 states and 414 transitions. [2024-09-12 18:36:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:36:54,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 92 [2024-09-12 18:36:54,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:54,134 INFO L225 Difference]: With dead ends: 400 [2024-09-12 18:36:54,136 INFO L226 Difference]: Without dead ends: 399 [2024-09-12 18:36:54,137 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:54,137 INFO L434 NwaCegarLoop]: 265 mSDtfsCounter, 24 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:54,137 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 413 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:36:54,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-09-12 18:36:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 395. [2024-09-12 18:36:54,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 241 states have (on average 1.5477178423236515) internal successors, (373), 366 states have internal predecessors, (373), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:36:54,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 413 transitions. [2024-09-12 18:36:54,173 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 413 transitions. Word has length 92 [2024-09-12 18:36:54,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:54,174 INFO L474 AbstractCegarLoop]: Abstraction has 395 states and 413 transitions. [2024-09-12 18:36:54,174 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:36:54,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:54,174 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 413 transitions. [2024-09-12 18:36:54,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 18:36:54,175 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:54,175 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:54,175 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:36:54,176 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:54,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:54,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1953147785, now seen corresponding path program 1 times [2024-09-12 18:36:54,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:54,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775912574] [2024-09-12 18:36:54,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:54,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:36:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:36:54,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:54,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775912574] [2024-09-12 18:36:54,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775912574] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:54,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:54,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:36:54,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241518375] [2024-09-12 18:36:54,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:54,304 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:36:54,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:54,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:36:54,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:54,305 INFO L87 Difference]: Start difference. First operand 395 states and 413 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:36:54,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:54,560 INFO L93 Difference]: Finished difference Result 395 states and 413 transitions. [2024-09-12 18:36:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:36:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2024-09-12 18:36:54,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:54,562 INFO L225 Difference]: With dead ends: 395 [2024-09-12 18:36:54,563 INFO L226 Difference]: Without dead ends: 393 [2024-09-12 18:36:54,564 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 18:36:54,565 INFO L434 NwaCegarLoop]: 259 mSDtfsCounter, 193 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:54,565 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 282 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:36:54,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-09-12 18:36:54,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-09-12 18:36:54,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 241 states have (on average 1.5311203319502074) internal successors, (369), 364 states have internal predecessors, (369), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:36:54,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 409 transitions. [2024-09-12 18:36:54,589 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 409 transitions. Word has length 94 [2024-09-12 18:36:54,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:54,589 INFO L474 AbstractCegarLoop]: Abstraction has 393 states and 409 transitions. [2024-09-12 18:36:54,589 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:36:54,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:54,589 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 409 transitions. [2024-09-12 18:36:54,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:36:54,590 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:54,590 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:54,590 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:36:54,590 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:54,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:54,591 INFO L85 PathProgramCache]: Analyzing trace with hash 418039379, now seen corresponding path program 1 times [2024-09-12 18:36:54,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:54,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416028464] [2024-09-12 18:36:54,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:54,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:36:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:36:54,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:54,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416028464] [2024-09-12 18:36:54,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416028464] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:54,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:54,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:36:54,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507887929] [2024-09-12 18:36:54,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:54,685 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:36:54,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:54,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:36:54,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:36:54,686 INFO L87 Difference]: Start difference. First operand 393 states and 409 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:36:55,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:55,045 INFO L93 Difference]: Finished difference Result 397 states and 409 transitions. [2024-09-12 18:36:55,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:36:55,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2024-09-12 18:36:55,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:55,049 INFO L225 Difference]: With dead ends: 397 [2024-09-12 18:36:55,049 INFO L226 Difference]: Without dead ends: 393 [2024-09-12 18:36:55,050 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:36:55,050 INFO L434 NwaCegarLoop]: 260 mSDtfsCounter, 19 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:55,050 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 957 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:36:55,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-09-12 18:36:55,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 391. [2024-09-12 18:36:55,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 239 states have (on average 1.5271966527196652) internal successors, (365), 362 states have internal predecessors, (365), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:36:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 405 transitions. [2024-09-12 18:36:55,073 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 405 transitions. Word has length 95 [2024-09-12 18:36:55,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:55,074 INFO L474 AbstractCegarLoop]: Abstraction has 391 states and 405 transitions. [2024-09-12 18:36:55,074 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:36:55,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:55,074 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 405 transitions. [2024-09-12 18:36:55,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 18:36:55,076 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:55,076 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, 1, 1, 1, 1, 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 18:36:55,076 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:36:55,076 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:55,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:55,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1659716492, now seen corresponding path program 1 times [2024-09-12 18:36:55,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:55,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614543972] [2024-09-12 18:36:55,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:55,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,138 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 18:36:55,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:55,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614543972] [2024-09-12 18:36:55,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614543972] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:55,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543716534] [2024-09-12 18:36:55,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:55,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:55,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:55,141 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 18:36:55,142 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 18:36:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:36:55,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:55,242 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:36:55,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:36:55,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543716534] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:55,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:36:55,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 18:36:55,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310276686] [2024-09-12 18:36:55,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:55,243 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:36:55,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:55,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:36:55,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:36:55,244 INFO L87 Difference]: Start difference. First operand 391 states and 405 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:36:55,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:55,360 INFO L93 Difference]: Finished difference Result 393 states and 405 transitions. [2024-09-12 18:36:55,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:36:55,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 94 [2024-09-12 18:36:55,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:55,362 INFO L225 Difference]: With dead ends: 393 [2024-09-12 18:36:55,362 INFO L226 Difference]: Without dead ends: 385 [2024-09-12 18:36:55,362 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 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 18:36:55,363 INFO L434 NwaCegarLoop]: 311 mSDtfsCounter, 255 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:55,363 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 417 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:36:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-09-12 18:36:55,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 383. [2024-09-12 18:36:55,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 239 states have (on average 1.493723849372385) internal successors, (357), 354 states have internal predecessors, (357), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:36:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 397 transitions. [2024-09-12 18:36:55,385 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 397 transitions. Word has length 94 [2024-09-12 18:36:55,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:55,386 INFO L474 AbstractCegarLoop]: Abstraction has 383 states and 397 transitions. [2024-09-12 18:36:55,386 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:36:55,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:55,386 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 397 transitions. [2024-09-12 18:36:55,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:36:55,387 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:55,387 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, 1, 1, 1, 1, 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 18:36:55,400 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:55,587 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:36:55,588 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:55,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:55,589 INFO L85 PathProgramCache]: Analyzing trace with hash -88396242, now seen corresponding path program 1 times [2024-09-12 18:36:55,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:55,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101312729] [2024-09-12 18:36:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:55,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,657 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 18:36:55,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:55,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101312729] [2024-09-12 18:36:55,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101312729] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:55,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497716118] [2024-09-12 18:36:55,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:55,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:55,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:55,661 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 18:36:55,665 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 18:36:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:55,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:36:55,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:55,767 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 18:36:55,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:55,862 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 18:36:55,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497716118] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:55,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:36:55,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 18:36:55,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342899961] [2024-09-12 18:36:55,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:55,864 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:36:55,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:55,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:36:55,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:36:55,865 INFO L87 Difference]: Start difference. First operand 383 states and 397 transitions. Second operand has 7 states, 6 states have (on average 29.833333333333332) internal successors, (179), 7 states have internal predecessors, (179), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-09-12 18:36:56,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:56,032 INFO L93 Difference]: Finished difference Result 645 states and 680 transitions. [2024-09-12 18:36:56,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:36:56,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 29.833333333333332) internal successors, (179), 7 states have internal predecessors, (179), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 95 [2024-09-12 18:36:56,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:56,035 INFO L225 Difference]: With dead ends: 645 [2024-09-12 18:36:56,035 INFO L226 Difference]: Without dead ends: 637 [2024-09-12 18:36:56,035 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:36:56,036 INFO L434 NwaCegarLoop]: 253 mSDtfsCounter, 839 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:56,036 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 747 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:36:56,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-09-12 18:36:56,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 443. [2024-09-12 18:36:56,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 300 states have (on average 1.49) internal successors, (447), 409 states have internal predecessors, (447), 26 states have call successors, (26), 9 states have call predecessors, (26), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:36:56,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 497 transitions. [2024-09-12 18:36:56,074 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 497 transitions. Word has length 95 [2024-09-12 18:36:56,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:56,074 INFO L474 AbstractCegarLoop]: Abstraction has 443 states and 497 transitions. [2024-09-12 18:36:56,074 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 29.833333333333332) internal successors, (179), 7 states have internal predecessors, (179), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-09-12 18:36:56,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:56,075 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 497 transitions. [2024-09-12 18:36:56,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 18:36:56,075 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:56,075 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:56,091 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 18:36:56,279 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:36:56,280 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:56,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash 217636066, now seen corresponding path program 1 times [2024-09-12 18:36:56,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:56,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849953988] [2024-09-12 18:36:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:56,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:56,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:56,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:56,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:56,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:56,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:56,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:36:56,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:56,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849953988] [2024-09-12 18:36:56,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849953988] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:56,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473737152] [2024-09-12 18:36:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:56,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:56,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:56,432 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 18:36:56,432 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 18:36:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:56,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:36:56,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:36:56,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-12 18:36:56,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473737152] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:56,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:36:56,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 11 [2024-09-12 18:36:56,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457808759] [2024-09-12 18:36:56,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:56,749 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:36:56,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:56,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:36:56,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:36:56,749 INFO L87 Difference]: Start difference. First operand 443 states and 497 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 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 18:37:00,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:00,259 INFO L93 Difference]: Finished difference Result 449 states and 502 transitions. [2024-09-12 18:37:00,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:37:00,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 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 101 [2024-09-12 18:37:00,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:00,261 INFO L225 Difference]: With dead ends: 449 [2024-09-12 18:37:00,262 INFO L226 Difference]: Without dead ends: 447 [2024-09-12 18:37:00,262 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:37:00,262 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 119 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:00,262 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 393 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-09-12 18:37:00,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2024-09-12 18:37:00,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2024-09-12 18:37:00,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 303 states have (on average 1.4851485148514851) internal successors, (450), 412 states have internal predecessors, (450), 26 states have call successors, (26), 10 states have call predecessors, (26), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:37:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 500 transitions. [2024-09-12 18:37:00,298 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 500 transitions. Word has length 101 [2024-09-12 18:37:00,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:00,298 INFO L474 AbstractCegarLoop]: Abstraction has 447 states and 500 transitions. [2024-09-12 18:37:00,298 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 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 18:37:00,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:00,298 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 500 transitions. [2024-09-12 18:37:00,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-12 18:37:00,299 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:00,299 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, 1, 1, 1, 1, 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 18:37:00,312 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 18:37:00,503 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:00,504 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:00,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:00,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1571222485, now seen corresponding path program 1 times [2024-09-12 18:37:00,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:00,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155906624] [2024-09-12 18:37:00,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:00,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:00,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051661477] [2024-09-12 18:37:00,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:00,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:00,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:00,526 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 18:37:00,530 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 18:37:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:00,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:37:00,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:00,642 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:37:00,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:37:00,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:00,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155906624] [2024-09-12 18:37:00,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:00,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051661477] [2024-09-12 18:37:00,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051661477] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:37:00,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:37:00,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 18:37:00,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204071225] [2024-09-12 18:37:00,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:00,765 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:37:00,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:00,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:37:00,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:37:00,766 INFO L87 Difference]: Start difference. First operand 447 states and 500 transitions. Second operand has 6 states, 5 states have (on average 28.0) internal successors, (140), 6 states have internal predecessors, (140), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:37:00,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:00,977 INFO L93 Difference]: Finished difference Result 651 states and 679 transitions. [2024-09-12 18:37:00,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:37:00,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.0) internal successors, (140), 6 states have internal predecessors, (140), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 106 [2024-09-12 18:37:00,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:00,980 INFO L225 Difference]: With dead ends: 651 [2024-09-12 18:37:00,980 INFO L226 Difference]: Without dead ends: 646 [2024-09-12 18:37:00,981 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:37:00,981 INFO L434 NwaCegarLoop]: 311 mSDtfsCounter, 674 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:00,981 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 881 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:37:00,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-09-12 18:37:01,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 452. [2024-09-12 18:37:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 311 states have (on average 1.4469453376205788) internal successors, (450), 416 states have internal predecessors, (450), 27 states have call successors, (27), 10 states have call predecessors, (27), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:37:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 502 transitions. [2024-09-12 18:37:01,044 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 502 transitions. Word has length 106 [2024-09-12 18:37:01,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:01,044 INFO L474 AbstractCegarLoop]: Abstraction has 452 states and 502 transitions. [2024-09-12 18:37:01,044 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.0) internal successors, (140), 6 states have internal predecessors, (140), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:37:01,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:01,044 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 502 transitions. [2024-09-12 18:37:01,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 18:37:01,046 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:01,046 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:01,059 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 18:37:01,250 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:01,250 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr70ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:01,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:01,251 INFO L85 PathProgramCache]: Analyzing trace with hash -2115550921, now seen corresponding path program 1 times [2024-09-12 18:37:01,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:01,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147723562] [2024-09-12 18:37:01,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:01,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:01,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:37:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:01,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:37:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:01,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:37:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:01,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:37:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:01,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:37:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:01,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:37:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:01,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:37:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:01,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:37:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:01,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:37:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:01,397 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:37:01,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:01,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147723562] [2024-09-12 18:37:01,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147723562] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:37:01,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:37:01,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:37:01,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53689637] [2024-09-12 18:37:01,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:37:01,398 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:37:01,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:01,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:37:01,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:37:01,399 INFO L87 Difference]: Start difference. First operand 452 states and 502 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:37:01,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:01,673 INFO L93 Difference]: Finished difference Result 458 states and 505 transitions. [2024-09-12 18:37:01,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:37:01,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 111 [2024-09-12 18:37:01,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:01,676 INFO L225 Difference]: With dead ends: 458 [2024-09-12 18:37:01,676 INFO L226 Difference]: Without dead ends: 426 [2024-09-12 18:37:01,676 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:37:01,677 INFO L434 NwaCegarLoop]: 219 mSDtfsCounter, 230 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:01,677 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 875 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:37:01,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-09-12 18:37:01,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2024-09-12 18:37:01,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 290 states have (on average 1.4655172413793103) internal successors, (425), 393 states have internal predecessors, (425), 25 states have call successors, (25), 9 states have call predecessors, (25), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:37:01,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 473 transitions. [2024-09-12 18:37:01,729 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 473 transitions. Word has length 111 [2024-09-12 18:37:01,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:01,729 INFO L474 AbstractCegarLoop]: Abstraction has 426 states and 473 transitions. [2024-09-12 18:37:01,729 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:37:01,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 473 transitions. [2024-09-12 18:37:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 18:37:01,730 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:01,730 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:37:01,730 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 18:37:01,730 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:01,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:01,731 INFO L85 PathProgramCache]: Analyzing trace with hash 945332587, now seen corresponding path program 2 times [2024-09-12 18:37:01,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:01,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390054276] [2024-09-12 18:37:01,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:01,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:01,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45621605] [2024-09-12 18:37:01,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:37:01,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:01,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:01,743 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 18:37:01,747 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 18:37:01,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:37:01,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:37:01,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:37:01,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:37:02,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 17 proven. 27 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:37:02,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:02,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390054276] [2024-09-12 18:37:02,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:02,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45621605] [2024-09-12 18:37:02,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45621605] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:37:02,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:37:02,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2024-09-12 18:37:02,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285692408] [2024-09-12 18:37:02,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:02,361 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:37:02,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:02,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:37:02,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:37:02,362 INFO L87 Difference]: Start difference. First operand 426 states and 473 transitions. Second operand has 16 states, 16 states have (on average 10.125) internal successors, (162), 15 states have internal predecessors, (162), 6 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:37:11,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:20,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:20,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:20,713 INFO L93 Difference]: Finished difference Result 578 states and 649 transitions. [2024-09-12 18:37:20,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:37:20,714 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 15 states have internal predecessors, (162), 6 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 116 [2024-09-12 18:37:20,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:20,716 INFO L225 Difference]: With dead ends: 578 [2024-09-12 18:37:20,716 INFO L226 Difference]: Without dead ends: 536 [2024-09-12 18:37:20,716 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:37:20,717 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 644 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 2284 mSolverCounterSat, 126 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 2412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 2284 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:20,717 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 517 Invalid, 2412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 2284 Invalid, 2 Unknown, 0 Unchecked, 18.2s Time] [2024-09-12 18:37:20,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-09-12 18:37:20,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 507. [2024-09-12 18:37:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 379 states have (on average 1.3825857519788918) internal successors, (524), 466 states have internal predecessors, (524), 30 states have call successors, (30), 12 states have call predecessors, (30), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:37:20,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 582 transitions. [2024-09-12 18:37:20,814 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 582 transitions. Word has length 116 [2024-09-12 18:37:20,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:20,815 INFO L474 AbstractCegarLoop]: Abstraction has 507 states and 582 transitions. [2024-09-12 18:37:20,815 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 15 states have internal predecessors, (162), 6 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:37:20,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 582 transitions. [2024-09-12 18:37:20,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-09-12 18:37:20,816 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:20,816 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:37:20,832 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 18:37:21,020 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 18:37:21,021 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:21,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:21,021 INFO L85 PathProgramCache]: Analyzing trace with hash -693483940, now seen corresponding path program 3 times [2024-09-12 18:37:21,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:21,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682754222] [2024-09-12 18:37:21,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:21,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:21,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327737762] [2024-09-12 18:37:21,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:37:21,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:21,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:21,040 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 18:37:21,044 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 18:37:21,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:37:21,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:37:21,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:37:21,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:21,401 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:37:21,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:37:21,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:21,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682754222] [2024-09-12 18:37:21,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:21,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327737762] [2024-09-12 18:37:21,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327737762] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:37:21,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:37:21,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-09-12 18:37:21,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762726047] [2024-09-12 18:37:21,583 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:21,583 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:37:21,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:21,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:37:21,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:37:21,584 INFO L87 Difference]: Start difference. First operand 507 states and 582 transitions. Second operand has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 5 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 18:37:22,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:22,577 INFO L93 Difference]: Finished difference Result 540 states and 596 transitions. [2024-09-12 18:37:22,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:37:22,577 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 5 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 125 [2024-09-12 18:37:22,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:22,579 INFO L225 Difference]: With dead ends: 540 [2024-09-12 18:37:22,580 INFO L226 Difference]: Without dead ends: 526 [2024-09-12 18:37:22,580 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:37:22,580 INFO L434 NwaCegarLoop]: 170 mSDtfsCounter, 256 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:22,580 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1061 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:37:22,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-09-12 18:37:22,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 511. [2024-09-12 18:37:22,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 382 states have (on average 1.3481675392670156) internal successors, (515), 469 states have internal predecessors, (515), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:37:22,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 573 transitions. [2024-09-12 18:37:22,679 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 573 transitions. Word has length 125 [2024-09-12 18:37:22,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:22,680 INFO L474 AbstractCegarLoop]: Abstraction has 511 states and 573 transitions. [2024-09-12 18:37:22,680 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 5 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 18:37:22,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:22,680 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 573 transitions. [2024-09-12 18:37:22,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-09-12 18:37:22,681 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:22,681 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:37:22,693 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 18:37:22,881 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:22,882 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:22,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:22,882 INFO L85 PathProgramCache]: Analyzing trace with hash 79079464, now seen corresponding path program 1 times [2024-09-12 18:37:22,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:22,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429194782] [2024-09-12 18:37:22,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:22,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:22,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209413960] [2024-09-12 18:37:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:22,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:22,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:22,900 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 18:37:22,907 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 18:37:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:22,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:37:22,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:23,266 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:37:23,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:37:23,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:23,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429194782] [2024-09-12 18:37:23,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:23,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209413960] [2024-09-12 18:37:23,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209413960] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:37:23,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:37:23,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 18:37:23,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579831487] [2024-09-12 18:37:23,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:23,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:37:23,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:23,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:37:23,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:37:23,565 INFO L87 Difference]: Start difference. First operand 511 states and 573 transitions. Second operand has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 10 states have internal predecessors, (170), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:37:29,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:29,348 INFO L93 Difference]: Finished difference Result 548 states and 582 transitions. [2024-09-12 18:37:29,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:37:29,349 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 10 states have internal predecessors, (170), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 131 [2024-09-12 18:37:29,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:29,351 INFO L225 Difference]: With dead ends: 548 [2024-09-12 18:37:29,351 INFO L226 Difference]: Without dead ends: 518 [2024-09-12 18:37:29,351 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:37:29,352 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 430 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:29,352 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 463 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-09-12 18:37:29,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-09-12 18:37:29,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 513. [2024-09-12 18:37:29,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 386 states have (on average 1.2720207253886011) internal successors, (491), 471 states have internal predecessors, (491), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:37:29,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 549 transitions. [2024-09-12 18:37:29,498 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 549 transitions. Word has length 131 [2024-09-12 18:37:29,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:29,498 INFO L474 AbstractCegarLoop]: Abstraction has 513 states and 549 transitions. [2024-09-12 18:37:29,498 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 10 states have internal predecessors, (170), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:37:29,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:29,498 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 549 transitions. [2024-09-12 18:37:29,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-12 18:37:29,503 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:29,503 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:37:29,523 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 18:37:29,703 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 18:37:29,704 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:29,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:29,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1264844201, now seen corresponding path program 4 times [2024-09-12 18:37:29,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:29,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081740395] [2024-09-12 18:37:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:29,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:29,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060917832] [2024-09-12 18:37:29,724 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:37:29,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:29,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:29,726 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 18:37:29,727 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 18:37:29,781 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:37:29,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:37:29,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:37:29,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 16 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:37:30,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:30,605 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 16 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:37:30,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:30,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081740395] [2024-09-12 18:37:30,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:30,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060917832] [2024-09-12 18:37:30,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060917832] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:37:30,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:37:30,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2024-09-12 18:37:30,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000255293] [2024-09-12 18:37:30,606 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:30,606 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:37:30,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:30,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:37:30,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:37:30,607 INFO L87 Difference]: Start difference. First operand 513 states and 549 transitions. Second operand has 13 states, 13 states have (on average 15.0) internal successors, (195), 12 states have internal predecessors, (195), 5 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:37:35,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:35,300 INFO L93 Difference]: Finished difference Result 666 states and 782 transitions. [2024-09-12 18:37:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:37:35,301 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 15.0) internal successors, (195), 12 states have internal predecessors, (195), 5 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 146 [2024-09-12 18:37:35,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:35,305 INFO L225 Difference]: With dead ends: 666 [2024-09-12 18:37:35,306 INFO L226 Difference]: Without dead ends: 596 [2024-09-12 18:37:35,306 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 278 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:37:35,310 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 291 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:35,310 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 565 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-09-12 18:37:35,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-09-12 18:37:35,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 591. [2024-09-12 18:37:35,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 455 states have (on average 1.3868131868131868) internal successors, (631), 541 states have internal predecessors, (631), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:37:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 702 transitions. [2024-09-12 18:37:35,460 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 702 transitions. Word has length 146 [2024-09-12 18:37:35,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:35,461 INFO L474 AbstractCegarLoop]: Abstraction has 591 states and 702 transitions. [2024-09-12 18:37:35,462 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.0) internal successors, (195), 12 states have internal predecessors, (195), 5 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:37:35,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:35,462 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 702 transitions. [2024-09-12 18:37:35,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-09-12 18:37:35,463 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:35,464 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:37:35,496 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 18:37:35,664 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:37:35,665 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:35,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:35,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1257085631, now seen corresponding path program 1 times [2024-09-12 18:37:35,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:35,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585628434] [2024-09-12 18:37:35,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:35,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:37:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:37:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:37:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:37:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:37:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:37:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:37:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:37:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:37:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:37:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:37:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:37:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:35,763 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-09-12 18:37:35,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:35,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585628434] [2024-09-12 18:37:35,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585628434] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:37:35,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:37:35,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:37:35,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533404686] [2024-09-12 18:37:35,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:37:35,764 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:37:35,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:35,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:37:35,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:37:35,765 INFO L87 Difference]: Start difference. First operand 591 states and 702 transitions. Second operand has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:37:36,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:36,607 INFO L93 Difference]: Finished difference Result 591 states and 702 transitions. [2024-09-12 18:37:36,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:37:36,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 171 [2024-09-12 18:37:36,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:36,610 INFO L225 Difference]: With dead ends: 591 [2024-09-12 18:37:36,610 INFO L226 Difference]: Without dead ends: 582 [2024-09-12 18:37:36,610 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 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 18:37:36,610 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 290 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:36,611 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 208 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:37:36,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-09-12 18:37:36,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2024-09-12 18:37:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 455 states have (on average 1.3472527472527474) internal successors, (613), 532 states have internal predecessors, (613), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:37:36,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 684 transitions. [2024-09-12 18:37:36,761 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 684 transitions. Word has length 171 [2024-09-12 18:37:36,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:36,762 INFO L474 AbstractCegarLoop]: Abstraction has 582 states and 684 transitions. [2024-09-12 18:37:36,762 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:37:36,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:36,762 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 684 transitions. [2024-09-12 18:37:36,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-09-12 18:37:36,763 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:36,763 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:37:36,763 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-09-12 18:37:36,764 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:36,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:36,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1173486657, now seen corresponding path program 1 times [2024-09-12 18:37:36,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:36,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687056651] [2024-09-12 18:37:36,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:36,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:37:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:37:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:37:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:37:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:37:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:37:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:37:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:37:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:37:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:37:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:37:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:37:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:36,815 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-09-12 18:37:36,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:36,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687056651] [2024-09-12 18:37:36,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687056651] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:37:36,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:37:36,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:37:36,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823805357] [2024-09-12 18:37:36,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:37:36,816 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:37:36,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:36,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:37:36,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:37:36,816 INFO L87 Difference]: Start difference. First operand 582 states and 684 transitions. Second operand has 3 states, 2 states have (on average 45.5) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:37:37,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:37,632 INFO L93 Difference]: Finished difference Result 582 states and 684 transitions. [2024-09-12 18:37:37,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:37:37,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 45.5) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 173 [2024-09-12 18:37:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:37,635 INFO L225 Difference]: With dead ends: 582 [2024-09-12 18:37:37,635 INFO L226 Difference]: Without dead ends: 577 [2024-09-12 18:37:37,635 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 18:37:37,635 INFO L434 NwaCegarLoop]: 121 mSDtfsCounter, 128 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:37,635 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 176 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:37:37,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-09-12 18:37:37,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2024-09-12 18:37:37,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 453 states have (on average 1.335540838852097) internal successors, (605), 527 states have internal predecessors, (605), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:37:37,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 676 transitions. [2024-09-12 18:37:37,783 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 676 transitions. Word has length 173 [2024-09-12 18:37:37,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:37,784 INFO L474 AbstractCegarLoop]: Abstraction has 577 states and 676 transitions. [2024-09-12 18:37:37,784 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 45.5) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:37:37,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 676 transitions. [2024-09-12 18:37:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-09-12 18:37:37,785 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:37,785 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:37:37,785 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-09-12 18:37:37,786 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:37,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:37,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1879361090, now seen corresponding path program 1 times [2024-09-12 18:37:37,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:37,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168527576] [2024-09-12 18:37:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:37,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:37,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813657490] [2024-09-12 18:37:37,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:37,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:37,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:37,803 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 18:37:37,804 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 18:37:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:37,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:37:37,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:37:38,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:39,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:39,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168527576] [2024-09-12 18:37:39,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:39,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813657490] [2024-09-12 18:37:39,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813657490] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:37:39,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:37:39,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:37:39,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489670484] [2024-09-12 18:37:39,099 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:39,099 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:37:39,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:39,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:37:39,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:37:39,100 INFO L87 Difference]: Start difference. First operand 577 states and 676 transitions. Second operand has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:37:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:40,209 INFO L93 Difference]: Finished difference Result 578 states and 676 transitions. [2024-09-12 18:37:40,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:37:40,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 177 [2024-09-12 18:37:40,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:40,212 INFO L225 Difference]: With dead ends: 578 [2024-09-12 18:37:40,213 INFO L226 Difference]: Without dead ends: 577 [2024-09-12 18:37:40,213 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:37:40,213 INFO L434 NwaCegarLoop]: 211 mSDtfsCounter, 35 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:40,213 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 453 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:37:40,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-09-12 18:37:40,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2024-09-12 18:37:40,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 453 states have (on average 1.3333333333333333) internal successors, (604), 527 states have internal predecessors, (604), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:37:40,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 675 transitions. [2024-09-12 18:37:40,367 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 675 transitions. Word has length 177 [2024-09-12 18:37:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:40,368 INFO L474 AbstractCegarLoop]: Abstraction has 577 states and 675 transitions. [2024-09-12 18:37:40,368 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:37:40,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:40,368 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 675 transitions. [2024-09-12 18:37:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-09-12 18:37:40,369 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:40,369 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:37:40,383 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 18:37:40,573 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:37:40,573 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:40,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:40,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1869348162, now seen corresponding path program 1 times [2024-09-12 18:37:40,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:40,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766105617] [2024-09-12 18:37:40,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:40,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:40,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933259127] [2024-09-12 18:37:40,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:40,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:40,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:40,593 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 18:37:40,595 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 18:37:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:40,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:37:40,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:37:41,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:41,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:41,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766105617] [2024-09-12 18:37:41,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:41,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933259127] [2024-09-12 18:37:41,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933259127] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:37:41,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:37:41,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:37:41,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127296666] [2024-09-12 18:37:41,234 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:41,234 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:37:41,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:41,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:37:41,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:37:41,235 INFO L87 Difference]: Start difference. First operand 577 states and 675 transitions. Second operand has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:37:42,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:42,401 INFO L93 Difference]: Finished difference Result 588 states and 675 transitions. [2024-09-12 18:37:42,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:37:42,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 178 [2024-09-12 18:37:42,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:42,404 INFO L225 Difference]: With dead ends: 588 [2024-09-12 18:37:42,404 INFO L226 Difference]: Without dead ends: 587 [2024-09-12 18:37:42,405 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:37:42,405 INFO L434 NwaCegarLoop]: 188 mSDtfsCounter, 71 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:42,405 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 534 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:37:42,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-09-12 18:37:42,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 577. [2024-09-12 18:37:42,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 453 states have (on average 1.3311258278145695) internal successors, (603), 527 states have internal predecessors, (603), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:37:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 674 transitions. [2024-09-12 18:37:42,552 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 674 transitions. Word has length 178 [2024-09-12 18:37:42,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:42,552 INFO L474 AbstractCegarLoop]: Abstraction has 577 states and 674 transitions. [2024-09-12 18:37:42,553 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:37:42,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:42,553 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 674 transitions. [2024-09-12 18:37:42,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 18:37:42,554 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:42,554 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:37:42,567 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 18:37:42,757 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:37:42,758 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:42,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:42,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1204941498, now seen corresponding path program 1 times [2024-09-12 18:37:42,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:42,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291375138] [2024-09-12 18:37:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:42,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:42,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987969906] [2024-09-12 18:37:42,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:42,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:42,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:42,781 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 18:37:42,785 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 18:37:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:42,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:37:42,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:44,035 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:37:44,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:44,896 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:37:44,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:44,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291375138] [2024-09-12 18:37:44,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:44,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987969906] [2024-09-12 18:37:44,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987969906] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:37:44,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:37:44,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2024-09-12 18:37:44,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013869575] [2024-09-12 18:37:44,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:44,898 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:37:44,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:44,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:37:44,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:37:44,900 INFO L87 Difference]: Start difference. First operand 577 states and 674 transitions. Second operand has 11 states, 10 states have (on average 24.1) internal successors, (241), 11 states have internal predecessors, (241), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2024-09-12 18:37:53,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:37:53,572 INFO L93 Difference]: Finished difference Result 585 states and 674 transitions. [2024-09-12 18:37:53,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:37:53,573 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.1) internal successors, (241), 11 states have internal predecessors, (241), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 181 [2024-09-12 18:37:53,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:37:53,575 INFO L225 Difference]: With dead ends: 585 [2024-09-12 18:37:53,575 INFO L226 Difference]: Without dead ends: 577 [2024-09-12 18:37:53,576 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:37:53,576 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 418 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:37:53,576 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 453 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-09-12 18:37:53,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-09-12 18:37:53,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2024-09-12 18:37:53,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 453 states have (on average 1.3134657836644592) internal successors, (595), 527 states have internal predecessors, (595), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:37:53,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 666 transitions. [2024-09-12 18:37:53,774 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 666 transitions. Word has length 181 [2024-09-12 18:37:53,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:37:53,775 INFO L474 AbstractCegarLoop]: Abstraction has 577 states and 666 transitions. [2024-09-12 18:37:53,775 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.1) internal successors, (241), 11 states have internal predecessors, (241), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2024-09-12 18:37:53,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:53,775 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 666 transitions. [2024-09-12 18:37:53,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-09-12 18:37:53,776 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:37:53,776 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:37:53,789 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 18:37:53,980 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:53,980 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:37:53,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:37:53,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2102605332, now seen corresponding path program 1 times [2024-09-12 18:37:53,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:37:53,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117273901] [2024-09-12 18:37:53,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:53,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:37:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:37:53,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454635346] [2024-09-12 18:37:53,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:37:53,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:37:53,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:37:53,999 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 18:37:54,000 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 18:37:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:37:54,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:37:54,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:37:54,678 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 22 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:37:54,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:37:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 22 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:37:56,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:37:56,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117273901] [2024-09-12 18:37:56,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:37:56,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454635346] [2024-09-12 18:37:56,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454635346] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:37:56,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:37:56,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2024-09-12 18:37:56,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396847148] [2024-09-12 18:37:56,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:37:56,147 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:37:56,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:37:56,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:37:56,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:37:56,148 INFO L87 Difference]: Start difference. First operand 577 states and 666 transitions. Second operand has 16 states, 16 states have (on average 15.8125) internal successors, (253), 15 states have internal predecessors, (253), 7 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-09-12 18:38:00,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:00,975 INFO L93 Difference]: Finished difference Result 587 states and 674 transitions. [2024-09-12 18:38:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:38:00,975 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.8125) internal successors, (253), 15 states have internal predecessors, (253), 7 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 190 [2024-09-12 18:38:00,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:00,977 INFO L225 Difference]: With dead ends: 587 [2024-09-12 18:38:00,977 INFO L226 Difference]: Without dead ends: 585 [2024-09-12 18:38:00,979 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 363 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:38:00,980 INFO L434 NwaCegarLoop]: 161 mSDtfsCounter, 93 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 2477 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 2494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:00,980 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 814 Invalid, 2494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2477 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-09-12 18:38:00,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-09-12 18:38:01,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-09-12 18:38:01,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 459 states have (on average 1.3093681917211328) internal successors, (601), 533 states have internal predecessors, (601), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:38:01,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 672 transitions. [2024-09-12 18:38:01,193 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 672 transitions. Word has length 190 [2024-09-12 18:38:01,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:01,194 INFO L474 AbstractCegarLoop]: Abstraction has 585 states and 672 transitions. [2024-09-12 18:38:01,194 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.8125) internal successors, (253), 15 states have internal predecessors, (253), 7 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-09-12 18:38:01,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:01,194 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 672 transitions. [2024-09-12 18:38:01,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-09-12 18:38:01,196 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:01,196 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:01,209 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 18:38:01,396 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:01,397 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:38:01,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:01,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2103135592, now seen corresponding path program 1 times [2024-09-12 18:38:01,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:01,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982168998] [2024-09-12 18:38:01,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:01,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:01,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476510639] [2024-09-12 18:38:01,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:01,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:01,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:01,438 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 18:38:01,439 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 18:38:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:01,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:38:01,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:02,147 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:38:02,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:38:02,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:02,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982168998] [2024-09-12 18:38:02,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:02,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476510639] [2024-09-12 18:38:02,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476510639] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:02,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:38:02,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:38:02,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883916010] [2024-09-12 18:38:02,634 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:38:02,635 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:38:02,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:02,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:38:02,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:38:02,636 INFO L87 Difference]: Start difference. First operand 585 states and 672 transitions. Second operand has 9 states, 8 states have (on average 17.25) internal successors, (138), 9 states have internal predecessors, (138), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:38:04,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:04,314 INFO L93 Difference]: Finished difference Result 588 states and 672 transitions. [2024-09-12 18:38:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:38:04,314 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.25) internal successors, (138), 9 states have internal predecessors, (138), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 200 [2024-09-12 18:38:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:04,317 INFO L225 Difference]: With dead ends: 588 [2024-09-12 18:38:04,317 INFO L226 Difference]: Without dead ends: 585 [2024-09-12 18:38:04,317 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:38:04,317 INFO L434 NwaCegarLoop]: 168 mSDtfsCounter, 280 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:04,317 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 335 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-09-12 18:38:04,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-09-12 18:38:04,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-09-12 18:38:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 459 states have (on average 1.3028322440087146) internal successors, (598), 533 states have internal predecessors, (598), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:38:04,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 669 transitions. [2024-09-12 18:38:04,515 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 669 transitions. Word has length 200 [2024-09-12 18:38:04,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:04,515 INFO L474 AbstractCegarLoop]: Abstraction has 585 states and 669 transitions. [2024-09-12 18:38:04,515 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.25) internal successors, (138), 9 states have internal predecessors, (138), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:38:04,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:04,515 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 669 transitions. [2024-09-12 18:38:04,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-09-12 18:38:04,516 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:04,516 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:04,530 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 18:38:04,716 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:38:04,717 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:38:04,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:04,718 INFO L85 PathProgramCache]: Analyzing trace with hash 772694141, now seen corresponding path program 1 times [2024-09-12 18:38:04,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:04,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067796600] [2024-09-12 18:38:04,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:04,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:38:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:38:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:38:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:38:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:38:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:38:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:38:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:38:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:38:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:38:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 18:38:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:38:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,935 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:38:04,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:04,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067796600] [2024-09-12 18:38:04,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067796600] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:04,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002196846] [2024-09-12 18:38:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:04,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:04,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:04,937 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 18:38:04,939 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 18:38:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:04,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:38:04,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:05,581 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:38:05,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:38:05,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002196846] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:05,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:38:05,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2024-09-12 18:38:05,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273545075] [2024-09-12 18:38:05,795 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:38:05,796 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:38:05,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:05,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:38:05,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:38:05,797 INFO L87 Difference]: Start difference. First operand 585 states and 669 transitions. Second operand has 11 states, 10 states have (on average 27.0) internal successors, (270), 11 states have internal predecessors, (270), 5 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-09-12 18:38:10,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:10,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:10,646 INFO L93 Difference]: Finished difference Result 585 states and 669 transitions. [2024-09-12 18:38:10,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:38:10,647 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 27.0) internal successors, (270), 11 states have internal predecessors, (270), 5 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 201 [2024-09-12 18:38:10,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:10,649 INFO L225 Difference]: With dead ends: 585 [2024-09-12 18:38:10,649 INFO L226 Difference]: Without dead ends: 579 [2024-09-12 18:38:10,649 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:38:10,650 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 615 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:10,650 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 275 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-09-12 18:38:10,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-09-12 18:38:10,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-09-12 18:38:10,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 459 states have (on average 1.2745098039215685) internal successors, (585), 527 states have internal predecessors, (585), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:38:10,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 656 transitions. [2024-09-12 18:38:10,853 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 656 transitions. Word has length 201 [2024-09-12 18:38:10,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:10,853 INFO L474 AbstractCegarLoop]: Abstraction has 579 states and 656 transitions. [2024-09-12 18:38:10,853 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 27.0) internal successors, (270), 11 states have internal predecessors, (270), 5 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-09-12 18:38:10,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:10,853 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 656 transitions. [2024-09-12 18:38:10,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-09-12 18:38:10,854 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:10,855 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:10,867 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 18:38:11,055 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 18:38:11,056 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:38:11,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:11,056 INFO L85 PathProgramCache]: Analyzing trace with hash 843688855, now seen corresponding path program 1 times [2024-09-12 18:38:11,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:11,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728538147] [2024-09-12 18:38:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:11,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:11,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109383776] [2024-09-12 18:38:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:11,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:11,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:11,073 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 18:38:11,074 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 18:38:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:11,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:38:11,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:11,250 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:38:11,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:38:11,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:11,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728538147] [2024-09-12 18:38:11,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:11,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109383776] [2024-09-12 18:38:11,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109383776] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:11,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:38:11,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:38:11,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254676121] [2024-09-12 18:38:11,310 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:38:11,310 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:11,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:11,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:11,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:38:11,311 INFO L87 Difference]: Start difference. First operand 579 states and 656 transitions. Second operand has 5 states, 4 states have (on average 35.0) internal successors, (140), 5 states have internal predecessors, (140), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:38:11,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:11,669 INFO L93 Difference]: Finished difference Result 638 states and 658 transitions. [2024-09-12 18:38:11,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:38:11,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 35.0) internal successors, (140), 5 states have internal predecessors, (140), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 202 [2024-09-12 18:38:11,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:11,671 INFO L225 Difference]: With dead ends: 638 [2024-09-12 18:38:11,672 INFO L226 Difference]: Without dead ends: 637 [2024-09-12 18:38:11,672 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:38:11,672 INFO L434 NwaCegarLoop]: 217 mSDtfsCounter, 198 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:11,672 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 698 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:11,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-09-12 18:38:11,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 579. [2024-09-12 18:38:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 459 states have (on average 1.2723311546840959) internal successors, (584), 527 states have internal predecessors, (584), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:38:11,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 655 transitions. [2024-09-12 18:38:11,879 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 655 transitions. Word has length 202 [2024-09-12 18:38:11,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:11,880 INFO L474 AbstractCegarLoop]: Abstraction has 579 states and 655 transitions. [2024-09-12 18:38:11,880 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 35.0) internal successors, (140), 5 states have internal predecessors, (140), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:38:11,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:11,880 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 655 transitions. [2024-09-12 18:38:11,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-09-12 18:38:11,881 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:11,881 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:11,894 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 18:38:12,081 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 18:38:12,082 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:38:12,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:12,082 INFO L85 PathProgramCache]: Analyzing trace with hash -953392191, now seen corresponding path program 1 times [2024-09-12 18:38:12,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:12,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116183659] [2024-09-12 18:38:12,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:12,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:12,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495366415] [2024-09-12 18:38:12,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:12,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:12,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:12,105 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 18:38:12,106 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 18:38:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:12,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:38:12,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:38:13,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:38:13,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:13,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116183659] [2024-09-12 18:38:13,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:13,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495366415] [2024-09-12 18:38:13,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495366415] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:13,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:38:13,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:38:13,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107446697] [2024-09-12 18:38:13,793 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:38:13,793 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:38:13,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:13,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:38:13,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:38:13,794 INFO L87 Difference]: Start difference. First operand 579 states and 655 transitions. Second operand has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:38:15,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:15,145 INFO L93 Difference]: Finished difference Result 581 states and 655 transitions. [2024-09-12 18:38:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:38:15,145 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 205 [2024-09-12 18:38:15,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:15,148 INFO L225 Difference]: With dead ends: 581 [2024-09-12 18:38:15,148 INFO L226 Difference]: Without dead ends: 579 [2024-09-12 18:38:15,148 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:38:15,148 INFO L434 NwaCegarLoop]: 166 mSDtfsCounter, 290 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:15,148 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 379 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:38:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-09-12 18:38:15,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-09-12 18:38:15,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 459 states have (on average 1.2679738562091503) internal successors, (582), 527 states have internal predecessors, (582), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:38:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 653 transitions. [2024-09-12 18:38:15,358 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 653 transitions. Word has length 205 [2024-09-12 18:38:15,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:15,358 INFO L474 AbstractCegarLoop]: Abstraction has 579 states and 653 transitions. [2024-09-12 18:38:15,358 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:38:15,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:15,358 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 653 transitions. [2024-09-12 18:38:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-09-12 18:38:15,359 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:15,359 INFO L216 NwaCegarLoop]: trace histogram [13, 12, 12, 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, 2, 2, 2, 2, 2, 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] [2024-09-12 18:38:15,371 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 18:38:15,563 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:38:15,564 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:38:15,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:15,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1484450885, now seen corresponding path program 5 times [2024-09-12 18:38:15,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:15,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292086026] [2024-09-12 18:38:15,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:15,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:15,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970693779] [2024-09-12 18:38:15,579 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:38:15,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:15,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:15,580 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 18:38:15,581 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 18:38:15,685 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-09-12 18:38:15,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:38:15,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:38:15,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:16,281 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 29 proven. 133 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-09-12 18:38:16,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:38:16,711 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 29 proven. 133 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-09-12 18:38:16,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:16,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292086026] [2024-09-12 18:38:16,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:16,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970693779] [2024-09-12 18:38:16,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970693779] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:38:16,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:38:16,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2024-09-12 18:38:16,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918230486] [2024-09-12 18:38:16,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:38:16,712 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 18:38:16,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:16,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 18:38:16,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:38:16,713 INFO L87 Difference]: Start difference. First operand 579 states and 653 transitions. Second operand has 21 states, 21 states have (on average 13.428571428571429) internal successors, (282), 20 states have internal predecessors, (282), 8 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2024-09-12 18:38:22,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:25,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:29,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:33,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:35,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:40,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:44,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:49,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:54,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:55,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:58,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:03,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:07,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:09,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:14,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:18,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:24,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:29,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:35,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:41,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:46,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:52,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:57,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:03,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:09,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:14,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:19,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:25,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:31,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:36,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:41,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:47,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:53,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:40:58,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:41:04,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:41:10,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []