./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound100.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/geo2-ll_valuebound100.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 d595e0b228746847d9dabc7c760eaa3ac94c8aaf9bd34f9a8b7d736cd526ed4a --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:08:14,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:08:14,924 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:08:14,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:08:14,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:08:14,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:08:14,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:08:14,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:08:14,957 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:08:14,958 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:08:14,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:08:14,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:08:14,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:08:14,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:08:14,961 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:08:14,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:08:14,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:08:14,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:08:14,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:08:14,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:08:14,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:08:14,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:08:14,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:08:14,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:08:14,967 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:08:14,967 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:08:14,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:08:14,967 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:08:14,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:08:14,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:08:14,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:08:14,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:08:14,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:08:14,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:08:14,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:08:14,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:08:14,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:08:14,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:08:14,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:08:14,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:08:14,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:08:14,971 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:08:14,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d595e0b228746847d9dabc7c760eaa3ac94c8aaf9bd34f9a8b7d736cd526ed4a Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:08:15,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:08:15,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:08:15,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:08:15,263 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:08:15,263 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:08:15,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound100.c [2024-09-12 19:08:16,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:08:16,618 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:08:16,618 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound100.c [2024-09-12 19:08:16,625 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/caeffe581/d1153a150015407d9688858eae8f790b/FLAG7263f2877 [2024-09-12 19:08:16,634 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/caeffe581/d1153a150015407d9688858eae8f790b [2024-09-12 19:08:16,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:08:16,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:08:16,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:08:16,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:08:16,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:08:16,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fee3c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16, skipping insertion in model container [2024-09-12 19:08:16,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:08:16,785 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/geo2-ll_valuebound100.c[525,538] [2024-09-12 19:08:16,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:08:16,811 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:08:16,820 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/geo2-ll_valuebound100.c[525,538] [2024-09-12 19:08:16,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:08:16,842 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:08:16,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16 WrapperNode [2024-09-12 19:08:16,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:08:16,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:08:16,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:08:16,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:08:16,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,859 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:08:16,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:08:16,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:08:16,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:08:16,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:08:16,868 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,870 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,883 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:08:16,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:08:16,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:08:16,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:08:16,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:08:16,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (1/1) ... [2024-09-12 19:08:16,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:08:16,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:16,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:08:16,932 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:08:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:08:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:08:16,968 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:08:16,968 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:08:16,968 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:08:16,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:08:16,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:08:16,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:08:16,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:08:16,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:08:16,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:08:16,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:08:17,017 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:08:17,018 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:08:17,405 INFO L? ?]: Removed 64 outVars from TransFormulas that were not future-live. [2024-09-12 19:08:17,408 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:08:17,430 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:08:17,431 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:08:17,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:08:17 BoogieIcfgContainer [2024-09-12 19:08:17,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:08:17,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:08:17,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:08:17,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:08:17,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:08:16" (1/3) ... [2024-09-12 19:08:17,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4459e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:08:17, skipping insertion in model container [2024-09-12 19:08:17,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:08:16" (2/3) ... [2024-09-12 19:08:17,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4459e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:08:17, skipping insertion in model container [2024-09-12 19:08:17,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:08:17" (3/3) ... [2024-09-12 19:08:17,450 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound100.c [2024-09-12 19:08:17,461 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:08:17,461 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2024-09-12 19:08:17,496 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:08:17,500 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;@6bf67267, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:08:17,500 INFO L337 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-09-12 19:08:17,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 43 states have (on average 1.7906976744186047) internal successors, (77), 72 states have internal predecessors, (77), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:08:17,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 19:08:17,507 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:17,508 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:17,508 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:17,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:17,512 INFO L85 PathProgramCache]: Analyzing trace with hash 798785557, now seen corresponding path program 1 times [2024-09-12 19:08:17,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:17,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703236132] [2024-09-12 19:08:17,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:17,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:17,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:08:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:17,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:08:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:17,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:08:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:17,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:17,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703236132] [2024-09-12 19:08:17,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703236132] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:08:17,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:08:17,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:08:17,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150268298] [2024-09-12 19:08:17,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:08:17,637 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:08:17,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:17,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:08:17,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:08:17,655 INFO L87 Difference]: Start difference. First operand has 83 states, 43 states have (on average 1.7906976744186047) internal successors, (77), 72 states have internal predecessors, (77), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:08:17,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:17,688 INFO L93 Difference]: Finished difference Result 160 states and 175 transitions. [2024-09-12 19:08:17,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:08:17,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2024-09-12 19:08:17,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:17,696 INFO L225 Difference]: With dead ends: 160 [2024-09-12 19:08:17,696 INFO L226 Difference]: Without dead ends: 79 [2024-09-12 19:08:17,699 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:08:17,703 INFO L434 NwaCegarLoop]: 83 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, 83 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:17,704 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:08:17,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-09-12 19:08:17,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-09-12 19:08:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 41 states have (on average 1.7317073170731707) internal successors, (71), 70 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:08:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2024-09-12 19:08:17,741 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 19 [2024-09-12 19:08:17,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:17,742 INFO L474 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2024-09-12 19:08:17,742 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:08:17,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:17,743 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2024-09-12 19:08:17,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 19:08:17,746 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:17,746 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:17,746 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:08:17,746 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:17,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:17,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1114207888, now seen corresponding path program 1 times [2024-09-12 19:08:17,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:17,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094821370] [2024-09-12 19:08:17,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:17,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:17,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829426437] [2024-09-12 19:08:17,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:17,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:17,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:17,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:17,783 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:08:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:17,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:08:17,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:17,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:17,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:08:17,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:17,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094821370] [2024-09-12 19:08:17,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:17,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829426437] [2024-09-12 19:08:17,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829426437] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:08:17,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:08:17,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:08:17,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651595636] [2024-09-12 19:08:17,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:08:17,888 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:08:17,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:17,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:08:17,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:08:17,888 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:08:18,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:18,240 INFO L93 Difference]: Finished difference Result 119 states and 139 transitions. [2024-09-12 19:08:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:08:18,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2024-09-12 19:08:18,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:18,242 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:08:18,242 INFO L226 Difference]: Without dead ends: 111 [2024-09-12 19:08:18,243 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:08:18,243 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 63 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:18,244 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 66 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:08:18,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-09-12 19:08:18,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 102. [2024-09-12 19:08:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.6825396825396826) internal successors, (106), 92 states have internal predecessors, (106), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:08:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2024-09-12 19:08:18,258 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 19 [2024-09-12 19:08:18,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:18,259 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2024-09-12 19:08:18,259 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:08:18,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:18,259 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2024-09-12 19:08:18,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 19:08:18,260 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:18,260 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:18,272 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 19:08:18,464 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:18,465 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:18,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:18,465 INFO L85 PathProgramCache]: Analyzing trace with hash 180706220, now seen corresponding path program 1 times [2024-09-12 19:08:18,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:18,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475354630] [2024-09-12 19:08:18,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:18,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:18,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647419139] [2024-09-12 19:08:18,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:18,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:18,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:18,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:18,483 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:08:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:18,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:08:18,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:18,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:18,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:08:18,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:18,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475354630] [2024-09-12 19:08:18,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:18,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647419139] [2024-09-12 19:08:18,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647419139] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:08:18,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:08:18,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:08:18,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812916495] [2024-09-12 19:08:18,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:08:18,565 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:08:18,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:18,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:08:18,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:08:18,566 INFO L87 Difference]: Start difference. First operand 102 states and 118 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:08:18,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:18,722 INFO L93 Difference]: Finished difference Result 119 states and 131 transitions. [2024-09-12 19:08:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:08:18,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-09-12 19:08:18,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:18,724 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:08:18,726 INFO L226 Difference]: Without dead ends: 111 [2024-09-12 19:08:18,726 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:08:18,727 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 90 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:18,727 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 51 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:08:18,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-09-12 19:08:18,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2024-09-12 19:08:18,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 94 states have internal predecessors, (102), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:08:18,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 114 transitions. [2024-09-12 19:08:18,751 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 114 transitions. Word has length 20 [2024-09-12 19:08:18,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:18,751 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 114 transitions. [2024-09-12 19:08:18,751 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:08:18,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:18,751 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 114 transitions. [2024-09-12 19:08:18,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 19:08:18,752 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:18,752 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:18,766 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 19:08:18,952 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:18,953 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:18,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:18,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1516558614, now seen corresponding path program 1 times [2024-09-12 19:08:18,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:18,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811738431] [2024-09-12 19:08:18,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:18,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:18,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1527805471] [2024-09-12 19:08:18,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:18,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:18,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:18,981 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:18,983 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:08:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:19,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:08:19,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:19,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:08:19,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:19,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811738431] [2024-09-12 19:08:19,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:19,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527805471] [2024-09-12 19:08:19,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527805471] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:08:19,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:08:19,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:08:19,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941169811] [2024-09-12 19:08:19,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:08:19,069 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:08:19,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:19,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:08:19,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:08:19,070 INFO L87 Difference]: Start difference. First operand 104 states and 114 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:08:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:19,400 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2024-09-12 19:08:19,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:08:19,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2024-09-12 19:08:19,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:19,401 INFO L225 Difference]: With dead ends: 116 [2024-09-12 19:08:19,401 INFO L226 Difference]: Without dead ends: 113 [2024-09-12 19:08:19,401 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:08:19,402 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 59 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:19,403 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 66 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:08:19,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-09-12 19:08:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 106. [2024-09-12 19:08:19,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 67 states have (on average 1.537313432835821) internal successors, (103), 96 states have internal predecessors, (103), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:08:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2024-09-12 19:08:19,413 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 25 [2024-09-12 19:08:19,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:19,413 INFO L474 AbstractCegarLoop]: Abstraction has 106 states and 115 transitions. [2024-09-12 19:08:19,414 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:08:19,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:19,414 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 115 transitions. [2024-09-12 19:08:19,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 19:08:19,414 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:19,414 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:19,426 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 19:08:19,615 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:19,615 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:19,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:19,616 INFO L85 PathProgramCache]: Analyzing trace with hash -231323150, now seen corresponding path program 1 times [2024-09-12 19:08:19,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:19,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682339960] [2024-09-12 19:08:19,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:19,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:19,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618623885] [2024-09-12 19:08:19,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:19,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:19,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:19,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:19,628 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:08:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:19,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:08:19,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:19,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:08:19,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:19,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682339960] [2024-09-12 19:08:19,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:19,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618623885] [2024-09-12 19:08:19,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618623885] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:08:19,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:08:19,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:08:19,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628372716] [2024-09-12 19:08:19,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:08:19,694 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:08:19,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:19,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:08:19,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:08:19,695 INFO L87 Difference]: Start difference. First operand 106 states and 115 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:08:19,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:19,794 INFO L93 Difference]: Finished difference Result 116 states and 124 transitions. [2024-09-12 19:08:19,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:08:19,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2024-09-12 19:08:19,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:19,799 INFO L225 Difference]: With dead ends: 116 [2024-09-12 19:08:19,799 INFO L226 Difference]: Without dead ends: 113 [2024-09-12 19:08:19,799 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:08:19,800 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 82 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:19,800 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 51 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:08:19,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-09-12 19:08:19,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2024-09-12 19:08:19,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.5072463768115942) internal successors, (104), 98 states have internal predecessors, (104), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:08:19,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2024-09-12 19:08:19,810 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 26 [2024-09-12 19:08:19,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:19,811 INFO L474 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2024-09-12 19:08:19,811 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:08:19,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:19,811 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2024-09-12 19:08:19,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:08:19,811 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:19,812 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:19,823 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:08:20,012 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:20,012 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:20,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:20,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1418917016, now seen corresponding path program 1 times [2024-09-12 19:08:20,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:20,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076497038] [2024-09-12 19:08:20,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:20,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:20,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156698232] [2024-09-12 19:08:20,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:20,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:20,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:20,026 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:20,027 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:08:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:20,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:08:20,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:20,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:20,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:08:20,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:20,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076497038] [2024-09-12 19:08:20,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:20,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156698232] [2024-09-12 19:08:20,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156698232] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:08:20,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:08:20,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:08:20,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028918488] [2024-09-12 19:08:20,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:08:20,089 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:08:20,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:20,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:08:20,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:08:20,089 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:08:20,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:20,292 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2024-09-12 19:08:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:08:20,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-09-12 19:08:20,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:20,293 INFO L225 Difference]: With dead ends: 117 [2024-09-12 19:08:20,293 INFO L226 Difference]: Without dead ends: 113 [2024-09-12 19:08:20,293 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 19:08:20,294 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 21 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:20,294 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 82 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:08:20,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-09-12 19:08:20,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 110. [2024-09-12 19:08:20,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 71 states have (on average 1.4647887323943662) internal successors, (104), 100 states have internal predecessors, (104), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:08:20,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 116 transitions. [2024-09-12 19:08:20,309 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 116 transitions. Word has length 27 [2024-09-12 19:08:20,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:20,309 INFO L474 AbstractCegarLoop]: Abstraction has 110 states and 116 transitions. [2024-09-12 19:08:20,309 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:08:20,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 116 transitions. [2024-09-12 19:08:20,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 19:08:20,310 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:20,310 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:20,323 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 19:08:20,511 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:08:20,511 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:20,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:20,512 INFO L85 PathProgramCache]: Analyzing trace with hash 486047588, now seen corresponding path program 1 times [2024-09-12 19:08:20,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:20,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704519543] [2024-09-12 19:08:20,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:20,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:20,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774172417] [2024-09-12 19:08:20,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:20,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:20,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:20,529 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:20,531 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:08:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:20,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:08:20,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:20,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:08:20,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:20,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704519543] [2024-09-12 19:08:20,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:20,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774172417] [2024-09-12 19:08:20,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774172417] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:08:20,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:08:20,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:08:20,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549778066] [2024-09-12 19:08:20,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:08:20,623 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:08:20,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:20,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:08:20,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:08:20,624 INFO L87 Difference]: Start difference. First operand 110 states and 116 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:08:20,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:20,898 INFO L93 Difference]: Finished difference Result 119 states and 122 transitions. [2024-09-12 19:08:20,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:08:20,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2024-09-12 19:08:20,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:20,903 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:08:20,903 INFO L226 Difference]: Without dead ends: 106 [2024-09-12 19:08:20,904 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:08:20,904 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 22 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:20,904 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 181 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:08:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-09-12 19:08:20,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-09-12 19:08:20,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 64 states have (on average 1.5) internal successors, (96), 93 states have internal predecessors, (96), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:08:20,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2024-09-12 19:08:20,920 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 32 [2024-09-12 19:08:20,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:20,920 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2024-09-12 19:08:20,920 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:08:20,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:20,921 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2024-09-12 19:08:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:08:20,921 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:20,921 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:20,933 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 19:08:21,125 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:21,126 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:21,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:21,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1513818032, now seen corresponding path program 1 times [2024-09-12 19:08:21,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:21,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155763392] [2024-09-12 19:08:21,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:21,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:21,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:08:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:21,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:08:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:21,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:08:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:21,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:08:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:21,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:21,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:21,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155763392] [2024-09-12 19:08:21,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155763392] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:08:21,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:08:21,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:08:21,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727116806] [2024-09-12 19:08:21,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:08:21,217 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:08:21,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:21,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:08:21,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:08:21,217 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:08:21,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:21,235 INFO L93 Difference]: Finished difference Result 106 states and 108 transitions. [2024-09-12 19:08:21,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:08:21,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-09-12 19:08:21,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:21,236 INFO L225 Difference]: With dead ends: 106 [2024-09-12 19:08:21,236 INFO L226 Difference]: Without dead ends: 104 [2024-09-12 19:08:21,236 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:08:21,237 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 1 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:21,238 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 149 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:08:21,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-09-12 19:08:21,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-09-12 19:08:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 64 states have (on average 1.46875) internal successors, (94), 93 states have internal predecessors, (94), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:08:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 106 transitions. [2024-09-12 19:08:21,251 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 106 transitions. Word has length 35 [2024-09-12 19:08:21,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:21,253 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 106 transitions. [2024-09-12 19:08:21,253 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:08:21,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:21,254 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 106 transitions. [2024-09-12 19:08:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 19:08:21,256 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:21,256 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:21,256 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 19:08:21,257 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:21,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:21,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1402486994, now seen corresponding path program 1 times [2024-09-12 19:08:21,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:21,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587753257] [2024-09-12 19:08:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:21,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:21,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [460515043] [2024-09-12 19:08:21,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:21,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:21,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:21,280 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:21,281 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:08:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:21,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:08:21,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:21,451 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:08:21,451 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:08:21,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:21,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587753257] [2024-09-12 19:08:21,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:21,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460515043] [2024-09-12 19:08:21,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460515043] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:08:21,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:08:21,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:08:21,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52495530] [2024-09-12 19:08:21,667 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:08:21,667 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:08:21,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:21,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:08:21,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:08:21,668 INFO L87 Difference]: Start difference. First operand 104 states and 106 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:08:21,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:21,867 INFO L93 Difference]: Finished difference Result 104 states and 106 transitions. [2024-09-12 19:08:21,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:08:21,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-09-12 19:08:21,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:21,869 INFO L225 Difference]: With dead ends: 104 [2024-09-12 19:08:21,869 INFO L226 Difference]: Without dead ends: 98 [2024-09-12 19:08:21,869 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:08:21,870 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 59 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:21,870 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 114 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:08:21,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-09-12 19:08:21,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-09-12 19:08:21,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.375) internal successors, (88), 87 states have internal predecessors, (88), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:08:21,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2024-09-12 19:08:21,881 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 100 transitions. Word has length 44 [2024-09-12 19:08:21,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:21,882 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 100 transitions. [2024-09-12 19:08:21,882 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:08:21,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:21,882 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 100 transitions. [2024-09-12 19:08:21,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 19:08:21,883 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:21,884 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:21,896 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 19:08:22,084 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:22,085 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:22,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:22,085 INFO L85 PathProgramCache]: Analyzing trace with hash -527423794, now seen corresponding path program 1 times [2024-09-12 19:08:22,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:22,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135712042] [2024-09-12 19:08:22,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:22,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:22,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1668087914] [2024-09-12 19:08:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:22,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:22,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:22,103 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:22,104 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:08:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:22,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:08:22,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:22,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:08:22,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:08:23,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:23,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135712042] [2024-09-12 19:08:23,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:23,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668087914] [2024-09-12 19:08:23,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668087914] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:08:23,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:08:23,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:08:23,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958273912] [2024-09-12 19:08:23,410 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:08:23,410 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:08:23,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:23,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:08:23,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:08:23,411 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. Second operand has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:08:23,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:23,655 INFO L93 Difference]: Finished difference Result 136 states and 152 transitions. [2024-09-12 19:08:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:08:23,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2024-09-12 19:08:23,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:23,656 INFO L225 Difference]: With dead ends: 136 [2024-09-12 19:08:23,656 INFO L226 Difference]: Without dead ends: 130 [2024-09-12 19:08:23,656 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:08:23,657 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 90 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:23,657 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 123 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:08:23,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-09-12 19:08:23,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 121. [2024-09-12 19:08:23,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 109 states have internal predecessors, (119), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:08:23,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 133 transitions. [2024-09-12 19:08:23,667 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 133 transitions. Word has length 45 [2024-09-12 19:08:23,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:23,667 INFO L474 AbstractCegarLoop]: Abstraction has 121 states and 133 transitions. [2024-09-12 19:08:23,667 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:08:23,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:23,667 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 133 transitions. [2024-09-12 19:08:23,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 19:08:23,668 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:23,668 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:23,681 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 19:08:23,868 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:23,869 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:23,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:23,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1491816654, now seen corresponding path program 1 times [2024-09-12 19:08:23,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:23,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470688608] [2024-09-12 19:08:23,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:23,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:23,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1646887922] [2024-09-12 19:08:23,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:23,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:23,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:23,881 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:23,882 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:08:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:23,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:08:23,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:24,013 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:24,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:08:24,569 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:24,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:24,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470688608] [2024-09-12 19:08:24,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:24,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646887922] [2024-09-12 19:08:24,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646887922] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:08:24,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:08:24,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:08:24,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528742755] [2024-09-12 19:08:24,570 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:08:24,570 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:08:24,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:24,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:08:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:08:24,571 INFO L87 Difference]: Start difference. First operand 121 states and 133 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 19:08:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:25,692 INFO L93 Difference]: Finished difference Result 173 states and 215 transitions. [2024-09-12 19:08:25,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:08:25,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 48 [2024-09-12 19:08:25,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:25,694 INFO L225 Difference]: With dead ends: 173 [2024-09-12 19:08:25,694 INFO L226 Difference]: Without dead ends: 171 [2024-09-12 19:08:25,694 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:08:25,695 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 315 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:25,696 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 106 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 19:08:25,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-09-12 19:08:25,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 149. [2024-09-12 19:08:25,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 114 states have (on average 1.4298245614035088) internal successors, (163), 136 states have internal predecessors, (163), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:08:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 179 transitions. [2024-09-12 19:08:25,712 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 179 transitions. Word has length 48 [2024-09-12 19:08:25,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:25,712 INFO L474 AbstractCegarLoop]: Abstraction has 149 states and 179 transitions. [2024-09-12 19:08:25,712 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 19:08:25,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:25,712 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 179 transitions. [2024-09-12 19:08:25,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:08:25,713 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:25,713 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:25,729 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:08:25,913 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 19:08:25,914 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:25,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:25,914 INFO L85 PathProgramCache]: Analyzing trace with hash 998324050, now seen corresponding path program 1 times [2024-09-12 19:08:25,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:25,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643788755] [2024-09-12 19:08:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:25,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:25,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614829980] [2024-09-12 19:08:25,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:25,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:25,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:25,926 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:25,927 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:08:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:25,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:08:25,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:26,105 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:08:26,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:08:26,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:26,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643788755] [2024-09-12 19:08:26,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:26,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614829980] [2024-09-12 19:08:26,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614829980] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:08:26,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:08:26,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:08:26,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597054916] [2024-09-12 19:08:26,969 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:08:26,970 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:08:26,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:26,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:08:26,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:08:26,970 INFO L87 Difference]: Start difference. First operand 149 states and 179 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:08:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:27,184 INFO L93 Difference]: Finished difference Result 149 states and 179 transitions. [2024-09-12 19:08:27,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:08:27,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 49 [2024-09-12 19:08:27,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:27,185 INFO L225 Difference]: With dead ends: 149 [2024-09-12 19:08:27,185 INFO L226 Difference]: Without dead ends: 143 [2024-09-12 19:08:27,185 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:08:27,186 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 55 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:27,186 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 120 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:08:27,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-09-12 19:08:27,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2024-09-12 19:08:27,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.3545454545454545) internal successors, (149), 126 states have internal predecessors, (149), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:08:27,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 165 transitions. [2024-09-12 19:08:27,206 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 165 transitions. Word has length 49 [2024-09-12 19:08:27,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:27,207 INFO L474 AbstractCegarLoop]: Abstraction has 139 states and 165 transitions. [2024-09-12 19:08:27,207 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:08:27,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:27,207 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 165 transitions. [2024-09-12 19:08:27,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 19:08:27,209 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:27,209 INFO L216 NwaCegarLoop]: trace histogram [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 19:08:27,221 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 19:08:27,412 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:08:27,413 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:27,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:27,414 INFO L85 PathProgramCache]: Analyzing trace with hash 883274548, now seen corresponding path program 1 times [2024-09-12 19:08:27,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:27,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511267839] [2024-09-12 19:08:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:27,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:27,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440904800] [2024-09-12 19:08:27,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:27,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:27,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:27,429 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:27,430 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:08:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:27,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:08:27,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:08:27,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:08:27,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:27,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511267839] [2024-09-12 19:08:27,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:27,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440904800] [2024-09-12 19:08:27,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440904800] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:08:27,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:08:27,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:08:27,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927401790] [2024-09-12 19:08:27,954 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:08:27,954 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:08:27,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:27,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:08:27,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:08:27,954 INFO L87 Difference]: Start difference. First operand 139 states and 165 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:08:28,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:28,096 INFO L93 Difference]: Finished difference Result 139 states and 165 transitions. [2024-09-12 19:08:28,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:08:28,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50 [2024-09-12 19:08:28,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:28,098 INFO L225 Difference]: With dead ends: 139 [2024-09-12 19:08:28,098 INFO L226 Difference]: Without dead ends: 136 [2024-09-12 19:08:28,098 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:08:28,098 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 51 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:28,098 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 129 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:08:28,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-09-12 19:08:28,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-09-12 19:08:28,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 110 states have (on average 1.290909090909091) internal successors, (142), 123 states have internal predecessors, (142), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:08:28,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions. [2024-09-12 19:08:28,114 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 50 [2024-09-12 19:08:28,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:28,114 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions. [2024-09-12 19:08:28,114 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:08:28,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2024-09-12 19:08:28,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 19:08:28,116 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:28,116 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:08:28,127 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 19:08:28,319 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:28,319 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:28,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:28,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1611707284, now seen corresponding path program 1 times [2024-09-12 19:08:28,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:28,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789538419] [2024-09-12 19:08:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:28,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:28,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104481938] [2024-09-12 19:08:28,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:28,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:28,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:28,330 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:28,332 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:08:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:28,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 19:08:28,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:28,532 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:08:28,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:08:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:08:29,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:29,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789538419] [2024-09-12 19:08:29,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:29,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104481938] [2024-09-12 19:08:29,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104481938] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:08:29,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:08:29,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-09-12 19:08:29,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799834402] [2024-09-12 19:08:29,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:08:29,727 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:08:29,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:08:29,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:08:29,728 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand has 16 states, 15 states have (on average 5.133333333333334) internal successors, (77), 16 states have internal predecessors, (77), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:08:30,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:08:32,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:32,649 INFO L93 Difference]: Finished difference Result 166 states and 190 transitions. [2024-09-12 19:08:32,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:08:32,649 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.133333333333334) internal successors, (77), 16 states have internal predecessors, (77), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 51 [2024-09-12 19:08:32,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:32,650 INFO L225 Difference]: With dead ends: 166 [2024-09-12 19:08:32,650 INFO L226 Difference]: Without dead ends: 163 [2024-09-12 19:08:32,651 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:08:32,651 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 292 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:32,651 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 233 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-09-12 19:08:32,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-09-12 19:08:32,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 137. [2024-09-12 19:08:32,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 124 states have internal predecessors, (139), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:08:32,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 155 transitions. [2024-09-12 19:08:32,669 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 155 transitions. Word has length 51 [2024-09-12 19:08:32,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:32,669 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 155 transitions. [2024-09-12 19:08:32,669 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.133333333333334) internal successors, (77), 16 states have internal predecessors, (77), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:08:32,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:32,669 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 155 transitions. [2024-09-12 19:08:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 19:08:32,669 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:32,670 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:32,682 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:08:32,870 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 19:08:32,870 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:32,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:32,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1576681674, now seen corresponding path program 1 times [2024-09-12 19:08:32,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:32,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743524442] [2024-09-12 19:08:32,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:32,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:32,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018982300] [2024-09-12 19:08:32,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:32,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:32,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:32,880 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:32,881 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:08:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:32,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:08:32,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:32,987 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:32,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:08:33,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:33,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743524442] [2024-09-12 19:08:33,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:33,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018982300] [2024-09-12 19:08:33,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018982300] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:08:33,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:08:33,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:08:33,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42133698] [2024-09-12 19:08:33,194 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:08:33,195 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:08:33,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:33,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:08:33,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:08:33,195 INFO L87 Difference]: Start difference. First operand 137 states and 155 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:08:33,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:33,373 INFO L93 Difference]: Finished difference Result 154 states and 168 transitions. [2024-09-12 19:08:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:08:33,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2024-09-12 19:08:33,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:33,375 INFO L225 Difference]: With dead ends: 154 [2024-09-12 19:08:33,375 INFO L226 Difference]: Without dead ends: 150 [2024-09-12 19:08:33,375 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:08:33,375 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 21 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:33,375 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 124 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:08:33,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-09-12 19:08:33,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2024-09-12 19:08:33,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 123 states have (on average 1.1951219512195121) internal successors, (147), 134 states have internal predecessors, (147), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:08:33,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 163 transitions. [2024-09-12 19:08:33,401 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 163 transitions. Word has length 52 [2024-09-12 19:08:33,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:33,401 INFO L474 AbstractCegarLoop]: Abstraction has 147 states and 163 transitions. [2024-09-12 19:08:33,401 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:08:33,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:33,401 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 163 transitions. [2024-09-12 19:08:33,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 19:08:33,402 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:33,402 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:33,413 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 19:08:33,602 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:08:33,602 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:33,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:33,603 INFO L85 PathProgramCache]: Analyzing trace with hash 659662726, now seen corresponding path program 1 times [2024-09-12 19:08:33,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:33,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871132237] [2024-09-12 19:08:33,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:33,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:33,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2067024001] [2024-09-12 19:08:33,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:33,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:33,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:33,612 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:33,613 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:08:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:33,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:08:33,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:33,718 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:33,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:08:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:08:33,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:33,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871132237] [2024-09-12 19:08:33,834 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:33,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067024001] [2024-09-12 19:08:33,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067024001] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:08:33,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:08:33,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2024-09-12 19:08:33,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411460240] [2024-09-12 19:08:33,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:08:33,835 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:08:33,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:33,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:08:33,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:08:33,835 INFO L87 Difference]: Start difference. First operand 147 states and 163 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:08:36,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:08:36,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:36,477 INFO L93 Difference]: Finished difference Result 150 states and 164 transitions. [2024-09-12 19:08:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:08:36,478 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2024-09-12 19:08:36,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:36,478 INFO L225 Difference]: With dead ends: 150 [2024-09-12 19:08:36,479 INFO L226 Difference]: Without dead ends: 122 [2024-09-12 19:08:36,479 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 103 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:08:36,479 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 41 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:36,479 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 165 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-09-12 19:08:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-09-12 19:08:36,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2024-09-12 19:08:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 102 states have (on average 1.1372549019607843) internal successors, (116), 107 states have internal predecessors, (116), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:08:36,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 131 transitions. [2024-09-12 19:08:36,496 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 131 transitions. Word has length 57 [2024-09-12 19:08:36,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:36,497 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 131 transitions. [2024-09-12 19:08:36,497 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:08:36,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 131 transitions. [2024-09-12 19:08:36,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 19:08:36,497 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:36,498 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:36,509 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:08:36,698 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:08:36,698 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:36,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:36,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1753197490, now seen corresponding path program 1 times [2024-09-12 19:08:36,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:36,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022234260] [2024-09-12 19:08:36,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:36,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:36,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:08:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:36,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:08:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:36,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:08:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:36,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:08:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:36,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 19:08:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:36,796 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:08:36,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:36,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022234260] [2024-09-12 19:08:36,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022234260] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:08:36,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218163792] [2024-09-12 19:08:36,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:36,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:36,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:36,798 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:36,799 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:08:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:36,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:08:36,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:08:36,864 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:08:36,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218163792] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:08:36,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:08:36,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:08:36,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28757286] [2024-09-12 19:08:36,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:08:36,865 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:08:36,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:36,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:08:36,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:08:36,865 INFO L87 Difference]: Start difference. First operand 120 states and 131 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:08:36,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:36,895 INFO L93 Difference]: Finished difference Result 120 states and 131 transitions. [2024-09-12 19:08:36,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:08:36,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 60 [2024-09-12 19:08:36,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:36,896 INFO L225 Difference]: With dead ends: 120 [2024-09-12 19:08:36,896 INFO L226 Difference]: Without dead ends: 119 [2024-09-12 19:08:36,896 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:08:36,896 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 5 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:36,897 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 95 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:08:36,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-09-12 19:08:36,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-09-12 19:08:36,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 102 states have (on average 1.107843137254902) internal successors, (113), 106 states have internal predecessors, (113), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:08:36,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 128 transitions. [2024-09-12 19:08:36,914 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 128 transitions. Word has length 60 [2024-09-12 19:08:36,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:36,914 INFO L474 AbstractCegarLoop]: Abstraction has 119 states and 128 transitions. [2024-09-12 19:08:36,914 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:08:36,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:36,914 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 128 transitions. [2024-09-12 19:08:36,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 19:08:36,915 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:36,915 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:36,929 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 19:08:37,115 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:08:37,116 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:37,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:37,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1485452744, now seen corresponding path program 1 times [2024-09-12 19:08:37,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:37,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573856346] [2024-09-12 19:08:37,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:37,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:37,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:08:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:37,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:08:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:37,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:08:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:37,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:08:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:37,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 19:08:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:37,192 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:08:37,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:37,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573856346] [2024-09-12 19:08:37,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573856346] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:08:37,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786423169] [2024-09-12 19:08:37,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:37,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:37,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:37,195 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:37,196 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:08:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:08:37,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:08:37,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:08:37,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:08:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:08:37,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786423169] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:08:37,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:08:37,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:08:37,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038663269] [2024-09-12 19:08:37,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:08:37,311 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:08:37,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:37,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:08:37,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:08:37,312 INFO L87 Difference]: Start difference. First operand 119 states and 128 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:08:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:37,350 INFO L93 Difference]: Finished difference Result 130 states and 136 transitions. [2024-09-12 19:08:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:08:37,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 61 [2024-09-12 19:08:37,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:37,351 INFO L225 Difference]: With dead ends: 130 [2024-09-12 19:08:37,351 INFO L226 Difference]: Without dead ends: 129 [2024-09-12 19:08:37,351 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 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 19:08:37,351 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 10 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:37,352 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 183 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:08:37,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-09-12 19:08:37,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2024-09-12 19:08:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 107 states have (on average 1.0841121495327102) internal successors, (116), 111 states have internal predecessors, (116), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:08:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2024-09-12 19:08:37,372 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 61 [2024-09-12 19:08:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:37,373 INFO L474 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2024-09-12 19:08:37,373 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:08:37,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2024-09-12 19:08:37,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 19:08:37,373 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:37,373 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:37,385 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 19:08:37,574 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:37,574 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:37,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:37,574 INFO L85 PathProgramCache]: Analyzing trace with hash -708000276, now seen corresponding path program 2 times [2024-09-12 19:08:37,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:37,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168767525] [2024-09-12 19:08:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:37,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:37,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097741967] [2024-09-12 19:08:37,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:08:37,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:37,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:37,585 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:37,586 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:08:37,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:08:37,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:08:37,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:08:37,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:08:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 19:08:37,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:08:38,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:08:38,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168767525] [2024-09-12 19:08:38,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:08:38,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097741967] [2024-09-12 19:08:38,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097741967] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:08:38,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:08:38,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:08:38,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118771571] [2024-09-12 19:08:38,174 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:08:38,174 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:08:38,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:08:38,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:08:38,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:08:38,175 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:08:38,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:08:38,272 INFO L93 Difference]: Finished difference Result 127 states and 133 transitions. [2024-09-12 19:08:38,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:08:38,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 70 [2024-09-12 19:08:38,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:08:38,273 INFO L225 Difference]: With dead ends: 127 [2024-09-12 19:08:38,273 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 19:08:38,273 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:08:38,274 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 37 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:08:38,274 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 109 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:08:38,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 19:08:38,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-09-12 19:08:38,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 107 states have (on average 1.0654205607476634) internal successors, (114), 111 states have internal predecessors, (114), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:08:38,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 131 transitions. [2024-09-12 19:08:38,297 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 131 transitions. Word has length 70 [2024-09-12 19:08:38,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:08:38,297 INFO L474 AbstractCegarLoop]: Abstraction has 125 states and 131 transitions. [2024-09-12 19:08:38,297 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:08:38,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:38,297 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 131 transitions. [2024-09-12 19:08:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 19:08:38,298 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:08:38,298 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:08:38,311 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 19:08:38,498 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:38,499 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:08:38,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:08:38,499 INFO L85 PathProgramCache]: Analyzing trace with hash 774423694, now seen corresponding path program 3 times [2024-09-12 19:08:38,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:08:38,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604686709] [2024-09-12 19:08:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:08:38,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:08:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:08:38,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1180397876] [2024-09-12 19:08:38,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:08:38,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:08:38,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:08:38,511 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:08:38,512 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:08:40,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 19:08:40,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:08:40,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:08:40,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:09:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-12 19:09:01,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:09:02,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:09:02,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604686709] [2024-09-12 19:09:02,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:09:02,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180397876] [2024-09-12 19:09:02,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180397876] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:09:02,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:09:02,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:09:02,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666171162] [2024-09-12 19:09:02,321 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:09:02,322 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:09:02,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:09:02,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:09:02,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=203, Unknown=5, NotChecked=0, Total=272 [2024-09-12 19:09:02,322 INFO L87 Difference]: Start difference. First operand 125 states and 131 transitions. Second operand has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:09:04,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:05,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:11,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:13,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:15,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:16,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:19,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:23,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:26,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:27,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:29,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:33,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:34,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:35,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:36,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:40,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:55,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:57,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:09:59,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:01,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:05,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:13,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:17,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:24,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:25,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:26,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:26,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:10:26,751 INFO L93 Difference]: Finished difference Result 131 states and 135 transitions. [2024-09-12 19:10:26,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:10:26,753 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 95 [2024-09-12 19:10:26,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:10:26,754 INFO L225 Difference]: With dead ends: 131 [2024-09-12 19:10:26,754 INFO L226 Difference]: Without dead ends: 129 [2024-09-12 19:10:26,754 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=142, Invalid=451, Unknown=7, NotChecked=0, Total=600 [2024-09-12 19:10:26,754 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 121 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 11 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:10:26,754 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 174 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 386 Invalid, 5 Unknown, 0 Unchecked, 60.9s Time] [2024-09-12 19:10:26,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-09-12 19:10:26,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2024-09-12 19:10:26,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 107 states have (on average 1.0467289719626167) internal successors, (112), 111 states have internal predecessors, (112), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:10:26,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 129 transitions. [2024-09-12 19:10:26,794 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 129 transitions. Word has length 95 [2024-09-12 19:10:26,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:10:26,795 INFO L474 AbstractCegarLoop]: Abstraction has 125 states and 129 transitions. [2024-09-12 19:10:26,795 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:10:26,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:10:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 129 transitions. [2024-09-12 19:10:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 19:10:26,796 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:10:26,796 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:10:26,803 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 19:10:26,996 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:10:26,996 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:10:26,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:10:26,997 INFO L85 PathProgramCache]: Analyzing trace with hash 774709292, now seen corresponding path program 4 times [2024-09-12 19:10:26,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:10:26,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850611988] [2024-09-12 19:10:26,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:10:26,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:10:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:10:27,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468076973] [2024-09-12 19:10:27,011 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:10:27,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:10:27,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:10:27,012 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:10:27,013 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:10:27,087 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:10:27,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:10:27,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:10:27,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:10:29,123 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 3 proven. 142 refuted. 5 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:10:29,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:10:29,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:10:29,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850611988] [2024-09-12 19:10:29,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:10:29,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468076973] [2024-09-12 19:10:29,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468076973] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:10:29,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:10:29,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:10:29,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045668388] [2024-09-12 19:10:29,517 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:10:29,517 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:10:29,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:10:29,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:10:29,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=171, Unknown=1, NotChecked=0, Total=240 [2024-09-12 19:10:29,518 INFO L87 Difference]: Start difference. First operand 125 states and 129 transitions. Second operand has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 14 states have internal predecessors, (99), 6 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-12 19:10:32,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:34,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:36,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:38,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:38,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:10:38,194 INFO L93 Difference]: Finished difference Result 155 states and 162 transitions. [2024-09-12 19:10:38,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:10:38,194 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 14 states have internal predecessors, (99), 6 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 120 [2024-09-12 19:10:38,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:10:38,195 INFO L225 Difference]: With dead ends: 155 [2024-09-12 19:10:38,195 INFO L226 Difference]: Without dead ends: 153 [2024-09-12 19:10:38,195 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=72, Invalid=199, Unknown=1, NotChecked=0, Total=272 [2024-09-12 19:10:38,196 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 45 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:10:38,196 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 173 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 397 Invalid, 3 Unknown, 0 Unchecked, 8.6s Time] [2024-09-12 19:10:38,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-12 19:10:38,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 136. [2024-09-12 19:10:38,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.0423728813559323) internal successors, (123), 122 states have internal predecessors, (123), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:10:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2024-09-12 19:10:38,243 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 120 [2024-09-12 19:10:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:10:38,243 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2024-09-12 19:10:38,243 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 14 states have internal predecessors, (99), 6 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-12 19:10:38,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:10:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2024-09-12 19:10:38,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 19:10:38,244 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:10:38,244 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:10:38,254 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 19:10:38,444 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 19:10:38,444 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:10:38,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:10:38,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1789669100, now seen corresponding path program 2 times [2024-09-12 19:10:38,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:10:38,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058973942] [2024-09-12 19:10:38,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:10:38,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:10:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:10:38,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1793124813] [2024-09-12 19:10:38,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:10:38,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:10:38,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:10:38,458 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:10:38,459 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:10:38,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:10:38,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:10:38,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:10:38,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:10:38,908 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 71 proven. 4 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-09-12 19:10:38,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:10:39,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:10:39,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058973942] [2024-09-12 19:10:39,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:10:39,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793124813] [2024-09-12 19:10:39,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793124813] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:10:39,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:10:39,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:10:39,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479414260] [2024-09-12 19:10:39,407 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:10:39,407 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:10:39,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:10:39,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:10:39,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:10:39,407 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:10:39,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:10:39,909 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2024-09-12 19:10:39,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:10:39,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 123 [2024-09-12 19:10:39,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:10:39,910 INFO L225 Difference]: With dead ends: 136 [2024-09-12 19:10:39,910 INFO L226 Difference]: Without dead ends: 135 [2024-09-12 19:10:39,910 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:10:39,910 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 20 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:10:39,910 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 69 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:10:39,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-09-12 19:10:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-09-12 19:10:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 118 states have (on average 1.0338983050847457) internal successors, (122), 121 states have internal predecessors, (122), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:10:39,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 139 transitions. [2024-09-12 19:10:39,962 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 139 transitions. Word has length 123 [2024-09-12 19:10:39,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:10:39,962 INFO L474 AbstractCegarLoop]: Abstraction has 135 states and 139 transitions. [2024-09-12 19:10:39,962 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:10:39,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:10:39,962 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 139 transitions. [2024-09-12 19:10:39,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-09-12 19:10:39,963 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:10:39,963 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:10:39,969 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 19:10:40,163 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:10:40,163 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:10:40,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:10:40,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1691922034, now seen corresponding path program 2 times [2024-09-12 19:10:40,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:10:40,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356950414] [2024-09-12 19:10:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:10:40,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:10:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:10:40,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889626867] [2024-09-12 19:10:40,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:10:40,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:10:40,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:10:40,183 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:10:40,184 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:10:40,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:10:40,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:10:40,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-12 19:10:40,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:10:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 9 proven. 162 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:10:40,707 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:10:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 19:10:42,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:10:42,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356950414] [2024-09-12 19:10:42,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:10:42,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889626867] [2024-09-12 19:10:42,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889626867] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:10:42,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:10:42,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-09-12 19:10:42,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499524805] [2024-09-12 19:10:42,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:10:42,999 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:10:42,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:10:42,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:10:42,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:10:43,000 INFO L87 Difference]: Start difference. First operand 135 states and 139 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:10:46,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:10:47,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:10:47,999 INFO L93 Difference]: Finished difference Result 135 states and 139 transitions. [2024-09-12 19:10:47,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:10:47,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 126 [2024-09-12 19:10:47,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:10:48,000 INFO L225 Difference]: With dead ends: 135 [2024-09-12 19:10:48,000 INFO L226 Difference]: Without dead ends: 134 [2024-09-12 19:10:48,000 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 234 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:10:48,001 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 41 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:10:48,001 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 106 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-09-12 19:10:48,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-09-12 19:10:48,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-09-12 19:10:48,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 118 states have (on average 1.0254237288135593) internal successors, (121), 120 states have internal predecessors, (121), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:10:48,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 138 transitions. [2024-09-12 19:10:48,062 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 138 transitions. Word has length 126 [2024-09-12 19:10:48,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:10:48,062 INFO L474 AbstractCegarLoop]: Abstraction has 134 states and 138 transitions. [2024-09-12 19:10:48,062 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:10:48,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:10:48,063 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 138 transitions. [2024-09-12 19:10:48,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-09-12 19:10:48,066 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:10:48,067 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:10:48,075 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 19:10:48,267 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:10:48,267 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:10:48,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:10:48,268 INFO L85 PathProgramCache]: Analyzing trace with hash -982207706, now seen corresponding path program 2 times [2024-09-12 19:10:48,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:10:48,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722698361] [2024-09-12 19:10:48,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:10:48,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:10:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:10:48,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:10:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:10:48,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:10:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:10:48,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:10:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:10:48,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:10:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:10:48,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 19:10:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:10:48,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 19:10:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:10:48,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:10:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:10:48,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 19:10:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:10:48,396 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-09-12 19:10:48,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:10:48,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722698361] [2024-09-12 19:10:48,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722698361] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:10:48,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709194484] [2024-09-12 19:10:48,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:10:48,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:10:48,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:10:48,398 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:10:48,399 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:10:48,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:10:48,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:10:48,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:10:48,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:10:48,517 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-09-12 19:10:48,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:10:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-09-12 19:10:48,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709194484] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:10:48,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:10:48,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-12 19:10:48,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889394214] [2024-09-12 19:10:48,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:10:48,618 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:10:48,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:10:48,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:10:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:10:48,619 INFO L87 Difference]: Start difference. First operand 134 states and 138 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:10:48,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:10:48,698 INFO L93 Difference]: Finished difference Result 134 states and 138 transitions. [2024-09-12 19:10:48,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:10:48,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 136 [2024-09-12 19:10:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:10:48,701 INFO L225 Difference]: With dead ends: 134 [2024-09-12 19:10:48,701 INFO L226 Difference]: Without dead ends: 133 [2024-09-12 19:10:48,702 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:10:48,702 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 32 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:10:48,702 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 112 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:10:48,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-09-12 19:10:48,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-09-12 19:10:48,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 118 states have (on average 1.0169491525423728) internal successors, (120), 119 states have internal predecessors, (120), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:10:48,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 137 transitions. [2024-09-12 19:10:48,761 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 137 transitions. Word has length 136 [2024-09-12 19:10:48,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:10:48,762 INFO L474 AbstractCegarLoop]: Abstraction has 133 states and 137 transitions. [2024-09-12 19:10:48,762 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:10:48,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:10:48,762 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 137 transitions. [2024-09-12 19:10:48,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-09-12 19:10:48,763 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:10:48,763 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:10:48,775 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 19:10:48,964 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:10:48,964 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:10:48,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:10:48,964 INFO L85 PathProgramCache]: Analyzing trace with hash -547982770, now seen corresponding path program 5 times [2024-09-12 19:10:48,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:10:48,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816184384] [2024-09-12 19:10:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:10:48,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:10:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:10:48,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349070217] [2024-09-12 19:10:48,985 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:10:48,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:10:48,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:10:48,988 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:10:48,990 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 19:10:49,053 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-09-12 19:10:49,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:10:49,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 19:10:49,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:10:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-09-12 19:10:51,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:10:52,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:10:52,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816184384] [2024-09-12 19:10:52,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:10:52,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349070217] [2024-09-12 19:10:52,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349070217] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:10:52,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:10:52,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 19:10:52,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001111223] [2024-09-12 19:10:52,105 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:10:52,105 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:10:52,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:10:52,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:10:52,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:10:52,106 INFO L87 Difference]: Start difference. First operand 133 states and 137 transitions. Second operand has 16 states, 15 states have (on average 7.933333333333334) internal successors, (119), 16 states have internal predecessors, (119), 7 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:10:54,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:10:58,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:11:05,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:11:06,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:11:06,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:11:06,800 INFO L93 Difference]: Finished difference Result 172 states and 178 transitions. [2024-09-12 19:11:06,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:11:06,801 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.933333333333334) internal successors, (119), 16 states have internal predecessors, (119), 7 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 145 [2024-09-12 19:11:06,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:11:06,802 INFO L225 Difference]: With dead ends: 172 [2024-09-12 19:11:06,802 INFO L226 Difference]: Without dead ends: 170 [2024-09-12 19:11:06,802 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:11:06,802 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 54 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:11:06,802 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 161 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 381 Invalid, 4 Unknown, 0 Unchecked, 14.6s Time] [2024-09-12 19:11:06,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-09-12 19:11:06,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 154. [2024-09-12 19:11:06,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 138 states have (on average 1.0144927536231885) internal successors, (140), 139 states have internal predecessors, (140), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:11:06,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 159 transitions. [2024-09-12 19:11:06,874 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 159 transitions. Word has length 145 [2024-09-12 19:11:06,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:11:06,874 INFO L474 AbstractCegarLoop]: Abstraction has 154 states and 159 transitions. [2024-09-12 19:11:06,874 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.933333333333334) internal successors, (119), 16 states have internal predecessors, (119), 7 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:11:06,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:11:06,874 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 159 transitions. [2024-09-12 19:11:06,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-09-12 19:11:06,875 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:11:06,875 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:11:06,890 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-12 19:11:07,075 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 19:11:07,075 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:11:07,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:11:07,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2043308652, now seen corresponding path program 6 times [2024-09-12 19:11:07,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:11:07,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894393578] [2024-09-12 19:11:07,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:11:07,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:11:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:11:07,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [285530423] [2024-09-12 19:11:07,094 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:11:07,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:11:07,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:11:07,095 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:11:07,096 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 19:11:07,732 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-09-12 19:11:07,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:11:07,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 19:11:07,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:11:08,680 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 18 proven. 342 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-09-12 19:11:08,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:11:09,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:11:09,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894393578] [2024-09-12 19:11:09,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:11:09,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285530423] [2024-09-12 19:11:09,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285530423] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:11:09,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:11:09,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-09-12 19:11:09,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384259050] [2024-09-12 19:11:09,282 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:11:09,283 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:11:09,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:11:09,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:11:09,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:11:09,284 INFO L87 Difference]: Start difference. First operand 154 states and 159 transitions. Second operand has 17 states, 16 states have (on average 8.6875) internal successors, (139), 17 states have internal predecessors, (139), 8 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-12 19:11:10,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:11:10,044 INFO L93 Difference]: Finished difference Result 193 states and 200 transitions. [2024-09-12 19:11:10,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:11:10,045 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.6875) internal successors, (139), 17 states have internal predecessors, (139), 8 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 170 [2024-09-12 19:11:10,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:11:10,046 INFO L225 Difference]: With dead ends: 193 [2024-09-12 19:11:10,046 INFO L226 Difference]: Without dead ends: 191 [2024-09-12 19:11:10,046 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:11:10,046 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 43 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:11:10,047 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 364 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:11:10,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-09-12 19:11:10,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 175. [2024-09-12 19:11:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 158 states have (on average 1.0126582278481013) internal successors, (160), 159 states have internal predecessors, (160), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:11:10,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 181 transitions. [2024-09-12 19:11:10,140 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 181 transitions. Word has length 170 [2024-09-12 19:11:10,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:11:10,141 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 181 transitions. [2024-09-12 19:11:10,141 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.6875) internal successors, (139), 17 states have internal predecessors, (139), 8 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-12 19:11:10,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:11:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 181 transitions. [2024-09-12 19:11:10,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-09-12 19:11:10,142 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:11:10,142 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:11:10,151 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 19:11:10,342 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 19:11:10,342 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-09-12 19:11:10,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:11:10,343 INFO L85 PathProgramCache]: Analyzing trace with hash 917843982, now seen corresponding path program 7 times [2024-09-12 19:11:10,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:11:10,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706699486] [2024-09-12 19:11:10,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:11:10,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:11:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:11:10,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970736629] [2024-09-12 19:11:10,364 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 19:11:10,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:11:10,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:11:10,365 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:11:10,367 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 19:11:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:11:10,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-09-12 19:11:10,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:11:11,573 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 18 proven. 465 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-09-12 19:11:11,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:37,246 WARN L293 SmtUtils]: Spent 6.31s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)