./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/sqrt1-ll.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/sqrt1-ll.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a667cf640b9cf5657756f4ca44157e13471ed71aebfaf7ff11f9d5251db37ae --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:33:26,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:33:26,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:33:26,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:33:26,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:33:26,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:33:26,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:33:26,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:33:26,131 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:33:26,132 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:33:26,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:33:26,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:33:26,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:33:26,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:33:26,134 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:33:26,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:33:26,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:33:26,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:33:26,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:33:26,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:33:26,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:33:26,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:33:26,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:33:26,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:33:26,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:33:26,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:33:26,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:33:26,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:33:26,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:33:26,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:33:26,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:33:26,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:33:26,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:33:26,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:33:26,140 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:33:26,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:33:26,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:33:26,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:33:26,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:33:26,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:33:26,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:33:26,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:33:26,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a667cf640b9cf5657756f4ca44157e13471ed71aebfaf7ff11f9d5251db37ae Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:33:26,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:33:26,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:33:26,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:33:26,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:33:26,408 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:33:26,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench/sqrt1-ll.c [2024-09-12 18:33:27,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:33:27,909 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:33:27,909 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/sqrt1-ll.c [2024-09-12 18:33:27,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/650d5b1e4/7df138602bad4633bbe149c613589843/FLAG8a9c6f2e2 [2024-09-12 18:33:27,935 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/650d5b1e4/7df138602bad4633bbe149c613589843 [2024-09-12 18:33:27,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:33:27,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:33:27,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:33:27,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:33:27,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:33:27,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:33:27" (1/1) ... [2024-09-12 18:33:27,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22aff870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:27, skipping insertion in model container [2024-09-12 18:33:27,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:33:27" (1/1) ... [2024-09-12 18:33:27,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:33:28,084 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/sqrt1-ll.c[520,533] [2024-09-12 18:33:28,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:33:28,107 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:33:28,118 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/sqrt1-ll.c[520,533] [2024-09-12 18:33:28,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:33:28,146 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:33:28,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28 WrapperNode [2024-09-12 18:33:28,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:33:28,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:33:28,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:33:28,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:33:28,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,169 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:33:28,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:33:28,173 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:33:28,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:33:28,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:33:28,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,198 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:33:28,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,204 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:33:28,214 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:33:28,214 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:33:28,214 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:33:28,215 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (1/1) ... [2024-09-12 18:33:28,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:33:28,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:28,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:33:28,244 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:33:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:33:28,280 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:33:28,280 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:33:28,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:33:28,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:33:28,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:33:28,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:33:28,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:33:28,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:33:28,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:33:28,331 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:33:28,332 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:33:28,816 INFO L? ?]: Removed 64 outVars from TransFormulas that were not future-live. [2024-09-12 18:33:28,817 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:33:28,856 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:33:28,858 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:33:28,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:33:28 BoogieIcfgContainer [2024-09-12 18:33:28,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:33:28,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:33:28,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:33:28,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:33:28,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:33:27" (1/3) ... [2024-09-12 18:33:28,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15650318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:33:28, skipping insertion in model container [2024-09-12 18:33:28,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:33:28" (2/3) ... [2024-09-12 18:33:28,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15650318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:33:28, skipping insertion in model container [2024-09-12 18:33:28,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:33:28" (3/3) ... [2024-09-12 18:33:28,870 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll.c [2024-09-12 18:33:28,888 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:33:28,889 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 51 error locations. [2024-09-12 18:33:28,980 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:33:28,988 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;@5b76e508, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:33:28,989 INFO L337 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-09-12 18:33:28,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 60 states have (on average 1.9166666666666667) internal successors, (115), 111 states have internal predecessors, (115), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:33:29,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 18:33:29,002 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:29,002 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:29,003 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:29,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:29,012 INFO L85 PathProgramCache]: Analyzing trace with hash -715886507, now seen corresponding path program 1 times [2024-09-12 18:33:29,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:29,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857855842] [2024-09-12 18:33:29,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:29,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:29,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:33:29,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:29,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857855842] [2024-09-12 18:33:29,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857855842] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:29,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:29,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:33:29,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687564166] [2024-09-12 18:33:29,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:29,191 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:33:29,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:29,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:33:29,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:33:29,224 INFO L87 Difference]: Start difference. First operand has 123 states, 60 states have (on average 1.9166666666666667) internal successors, (115), 111 states have internal predecessors, (115), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:33:29,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:29,271 INFO L93 Difference]: Finished difference Result 237 states and 263 transitions. [2024-09-12 18:33:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:33:29,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 18:33:29,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:29,283 INFO L225 Difference]: With dead ends: 237 [2024-09-12 18:33:29,284 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 18:33:29,288 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:33:29,293 INFO L434 NwaCegarLoop]: 122 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, 122 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:29,295 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:33:29,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 18:33:29,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-09-12 18:33:29,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 58 states have (on average 1.8275862068965518) internal successors, (106), 105 states have internal predecessors, (106), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:33:29,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 120 transitions. [2024-09-12 18:33:29,350 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 120 transitions. Word has length 7 [2024-09-12 18:33:29,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:29,350 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 120 transitions. [2024-09-12 18:33:29,351 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:33:29,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:29,352 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 120 transitions. [2024-09-12 18:33:29,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 18:33:29,352 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:29,352 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:29,353 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:33:29,353 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:29,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:29,354 INFO L85 PathProgramCache]: Analyzing trace with hash -715888620, now seen corresponding path program 1 times [2024-09-12 18:33:29,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:29,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317798410] [2024-09-12 18:33:29,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:29,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:29,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:33:29,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:29,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317798410] [2024-09-12 18:33:29,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317798410] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:29,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:29,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:33:29,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688961444] [2024-09-12 18:33:29,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:29,448 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:33:29,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:29,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:33:29,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:33:29,449 INFO L87 Difference]: Start difference. First operand 115 states and 120 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:33:29,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:29,606 INFO L93 Difference]: Finished difference Result 211 states and 222 transitions. [2024-09-12 18:33:29,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:33:29,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 18:33:29,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:29,612 INFO L225 Difference]: With dead ends: 211 [2024-09-12 18:33:29,612 INFO L226 Difference]: Without dead ends: 191 [2024-09-12 18:33:29,613 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:33:29,613 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 69 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:29,614 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 173 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:33:29,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-09-12 18:33:29,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 155. [2024-09-12 18:33:29,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 94 states have (on average 1.6382978723404256) internal successors, (154), 141 states have internal predecessors, (154), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:33:29,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 176 transitions. [2024-09-12 18:33:29,629 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 176 transitions. Word has length 7 [2024-09-12 18:33:29,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:29,629 INFO L474 AbstractCegarLoop]: Abstraction has 155 states and 176 transitions. [2024-09-12 18:33:29,630 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:33:29,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:29,630 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 176 transitions. [2024-09-12 18:33:29,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 18:33:29,630 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:29,631 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:29,631 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:33:29,631 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:29,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:29,631 INFO L85 PathProgramCache]: Analyzing trace with hash 531283218, now seen corresponding path program 1 times [2024-09-12 18:33:29,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:29,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896077415] [2024-09-12 18:33:29,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:29,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:29,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:29,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:33:29,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:29,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896077415] [2024-09-12 18:33:29,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896077415] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:29,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:29,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:33:29,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385833855] [2024-09-12 18:33:29,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:29,748 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:33:29,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:29,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:33:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:33:29,749 INFO L87 Difference]: Start difference. First operand 155 states and 176 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:33:29,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:29,969 INFO L93 Difference]: Finished difference Result 185 states and 207 transitions. [2024-09-12 18:33:29,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:33:29,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-09-12 18:33:29,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:29,971 INFO L225 Difference]: With dead ends: 185 [2024-09-12 18:33:29,971 INFO L226 Difference]: Without dead ends: 177 [2024-09-12 18:33:29,971 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:33:29,972 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 50 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:29,972 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 205 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:33:29,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-09-12 18:33:29,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 168. [2024-09-12 18:33:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 105 states have (on average 1.5809523809523809) internal successors, (166), 152 states have internal predecessors, (166), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:33:30,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 190 transitions. [2024-09-12 18:33:30,001 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 190 transitions. Word has length 14 [2024-09-12 18:33:30,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:30,001 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 190 transitions. [2024-09-12 18:33:30,001 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:33:30,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:30,002 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 190 transitions. [2024-09-12 18:33:30,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 18:33:30,002 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:30,002 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:30,003 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:33:30,003 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:30,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:30,003 INFO L85 PathProgramCache]: Analyzing trace with hash 927870392, now seen corresponding path program 1 times [2024-09-12 18:33:30,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:30,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942616998] [2024-09-12 18:33:30,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:30,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:33:30,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225591464] [2024-09-12 18:33:30,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:30,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:30,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:30,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:30,022 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:33:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:30,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:33:30,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:33:30,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:33:30,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:30,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942616998] [2024-09-12 18:33:30,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:33:30,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225591464] [2024-09-12 18:33:30,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225591464] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:30,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:30,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:33:30,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425292139] [2024-09-12 18:33:30,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:30,138 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:33:30,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:30,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:33:30,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:33:30,139 INFO L87 Difference]: Start difference. First operand 168 states and 190 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:33:30,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:30,322 INFO L93 Difference]: Finished difference Result 189 states and 204 transitions. [2024-09-12 18:33:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:33:30,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-09-12 18:33:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:30,327 INFO L225 Difference]: With dead ends: 189 [2024-09-12 18:33:30,327 INFO L226 Difference]: Without dead ends: 177 [2024-09-12 18:33:30,328 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:33:30,329 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 40 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:30,329 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 244 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:33:30,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-09-12 18:33:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2024-09-12 18:33:30,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 111 states have (on average 1.4864864864864864) internal successors, (165), 158 states have internal predecessors, (165), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:33:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 189 transitions. [2024-09-12 18:33:30,357 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 189 transitions. Word has length 25 [2024-09-12 18:33:30,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:30,358 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 189 transitions. [2024-09-12 18:33:30,358 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:33:30,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:30,358 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 189 transitions. [2024-09-12 18:33:30,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 18:33:30,360 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:30,360 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:30,378 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:33:30,564 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:30,565 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:30,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash -846622270, now seen corresponding path program 1 times [2024-09-12 18:33:30,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:30,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354047366] [2024-09-12 18:33:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:30,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:30,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:30,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:30,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:30,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:33:30,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:30,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354047366] [2024-09-12 18:33:30,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354047366] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:30,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:30,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:33:30,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676665803] [2024-09-12 18:33:30,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:30,708 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:33:30,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:30,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:33:30,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:33:30,709 INFO L87 Difference]: Start difference. First operand 175 states and 189 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:33:30,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:30,802 INFO L93 Difference]: Finished difference Result 185 states and 200 transitions. [2024-09-12 18:33:30,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:33:30,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 32 [2024-09-12 18:33:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:30,805 INFO L225 Difference]: With dead ends: 185 [2024-09-12 18:33:30,805 INFO L226 Difference]: Without dead ends: 181 [2024-09-12 18:33:30,806 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:33:30,807 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 82 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:30,809 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 163 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:33:30,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-09-12 18:33:30,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2024-09-12 18:33:30,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 113 states have (on average 1.4601769911504425) internal successors, (165), 160 states have internal predecessors, (165), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:33:30,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 189 transitions. [2024-09-12 18:33:30,825 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 189 transitions. Word has length 32 [2024-09-12 18:33:30,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:30,825 INFO L474 AbstractCegarLoop]: Abstraction has 177 states and 189 transitions. [2024-09-12 18:33:30,825 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:33:30,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:30,826 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 189 transitions. [2024-09-12 18:33:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:33:30,826 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:30,826 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:30,827 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:33:30,827 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:30,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash -416514874, now seen corresponding path program 1 times [2024-09-12 18:33:30,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:30,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825314918] [2024-09-12 18:33:30,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:30,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:30,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:30,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:30,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:33:30,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:30,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825314918] [2024-09-12 18:33:30,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825314918] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:30,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:30,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:33:30,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060172446] [2024-09-12 18:33:30,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:30,895 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:33:30,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:30,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:33:30,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:33:30,896 INFO L87 Difference]: Start difference. First operand 177 states and 189 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:33:30,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:30,980 INFO L93 Difference]: Finished difference Result 183 states and 192 transitions. [2024-09-12 18:33:30,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:33:30,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 36 [2024-09-12 18:33:30,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:30,982 INFO L225 Difference]: With dead ends: 183 [2024-09-12 18:33:30,982 INFO L226 Difference]: Without dead ends: 179 [2024-09-12 18:33:30,982 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:33:30,983 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 30 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:30,983 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 153 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:33:30,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-09-12 18:33:30,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 178. [2024-09-12 18:33:30,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 114 states have (on average 1.4298245614035088) internal successors, (163), 161 states have internal predecessors, (163), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:33:30,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 187 transitions. [2024-09-12 18:33:30,995 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 187 transitions. Word has length 36 [2024-09-12 18:33:30,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:30,996 INFO L474 AbstractCegarLoop]: Abstraction has 178 states and 187 transitions. [2024-09-12 18:33:30,996 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:33:30,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:30,996 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 187 transitions. [2024-09-12 18:33:30,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:33:30,997 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:30,997 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:30,997 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 18:33:30,997 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:30,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:30,998 INFO L85 PathProgramCache]: Analyzing trace with hash -530297352, now seen corresponding path program 1 times [2024-09-12 18:33:30,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:30,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059719693] [2024-09-12 18:33:30,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:30,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:33:31,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345573634] [2024-09-12 18:33:31,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:31,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:31,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:31,011 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:31,012 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:33:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:33:31,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:31,148 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:33:31,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:33:31,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:31,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059719693] [2024-09-12 18:33:31,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:33:31,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345573634] [2024-09-12 18:33:31,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345573634] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:31,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:31,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:33:31,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044560102] [2024-09-12 18:33:31,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:31,151 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:33:31,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:31,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:33:31,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:33:31,152 INFO L87 Difference]: Start difference. First operand 178 states and 187 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:33:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:31,278 INFO L93 Difference]: Finished difference Result 185 states and 193 transitions. [2024-09-12 18:33:31,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:33:31,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-09-12 18:33:31,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:31,279 INFO L225 Difference]: With dead ends: 185 [2024-09-12 18:33:31,279 INFO L226 Difference]: Without dead ends: 158 [2024-09-12 18:33:31,280 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:33:31,281 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 30 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:31,281 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 325 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:33:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-09-12 18:33:31,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-09-12 18:33:31,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 142 states have internal predecessors, (143), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:33:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 163 transitions. [2024-09-12 18:33:31,295 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 163 transitions. Word has length 42 [2024-09-12 18:33:31,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:31,296 INFO L474 AbstractCegarLoop]: Abstraction has 158 states and 163 transitions. [2024-09-12 18:33:31,296 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:33:31,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 163 transitions. [2024-09-12 18:33:31,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:33:31,297 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:31,297 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:31,311 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 18:33:31,498 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 18:33:31,498 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:31,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:31,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1731818876, now seen corresponding path program 1 times [2024-09-12 18:33:31,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:31,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083706742] [2024-09-12 18:33:31,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:31,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:33:31,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:31,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083706742] [2024-09-12 18:33:31,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083706742] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:31,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:31,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:33:31,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188695611] [2024-09-12 18:33:31,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:31,602 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:33:31,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:31,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:33:31,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:33:31,603 INFO L87 Difference]: Start difference. First operand 158 states and 163 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:33:31,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:31,698 INFO L93 Difference]: Finished difference Result 161 states and 167 transitions. [2024-09-12 18:33:31,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:33:31,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 49 [2024-09-12 18:33:31,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:31,699 INFO L225 Difference]: With dead ends: 161 [2024-09-12 18:33:31,699 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 18:33:31,700 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:33:31,700 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:31,700 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 222 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:33:31,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 18:33:31,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2024-09-12 18:33:31,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 96 states have (on average 1.5) internal successors, (144), 143 states have internal predecessors, (144), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:33:31,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 164 transitions. [2024-09-12 18:33:31,708 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 164 transitions. Word has length 49 [2024-09-12 18:33:31,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:31,708 INFO L474 AbstractCegarLoop]: Abstraction has 159 states and 164 transitions. [2024-09-12 18:33:31,708 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:33:31,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 164 transitions. [2024-09-12 18:33:31,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:33:31,709 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:31,710 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:31,710 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:33:31,710 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:31,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:31,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2146777496, now seen corresponding path program 1 times [2024-09-12 18:33:31,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:31,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238121909] [2024-09-12 18:33:31,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:31,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:31,832 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:33:31,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:31,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238121909] [2024-09-12 18:33:31,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238121909] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:31,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:31,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:33:31,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962920571] [2024-09-12 18:33:31,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:31,836 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:33:31,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:31,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:33:31,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:33:31,837 INFO L87 Difference]: Start difference. First operand 159 states and 164 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:33:32,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:32,016 INFO L93 Difference]: Finished difference Result 161 states and 166 transitions. [2024-09-12 18:33:32,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:33:32,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 50 [2024-09-12 18:33:32,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:32,018 INFO L225 Difference]: With dead ends: 161 [2024-09-12 18:33:32,020 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 18:33:32,020 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:33:32,021 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:32,021 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 226 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:33:32,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 18:33:32,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-09-12 18:33:32,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 97 states have (on average 1.4948453608247423) internal successors, (145), 144 states have internal predecessors, (145), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:33:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 165 transitions. [2024-09-12 18:33:32,036 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 165 transitions. Word has length 50 [2024-09-12 18:33:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:32,037 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 165 transitions. [2024-09-12 18:33:32,037 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:33:32,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:32,037 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 165 transitions. [2024-09-12 18:33:32,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 18:33:32,040 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:32,040 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:32,041 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 18:33:32,041 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:32,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:32,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1468870166, now seen corresponding path program 1 times [2024-09-12 18:33:32,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:32,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243016917] [2024-09-12 18:33:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:32,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,148 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:33:32,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:32,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243016917] [2024-09-12 18:33:32,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243016917] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:33:32,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20699014] [2024-09-12 18:33:32,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:32,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:32,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:32,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:32,159 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:33:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:33:32,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:33:32,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:33:32,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20699014] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:32,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:33:32,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 18:33:32,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964244985] [2024-09-12 18:33:32,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:32,309 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:33:32,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:32,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:33:32,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:33:32,310 INFO L87 Difference]: Start difference. First operand 160 states and 165 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:33:32,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:32,445 INFO L93 Difference]: Finished difference Result 160 states and 165 transitions. [2024-09-12 18:33:32,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:33:32,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 18:33:32,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:32,447 INFO L225 Difference]: With dead ends: 160 [2024-09-12 18:33:32,448 INFO L226 Difference]: Without dead ends: 151 [2024-09-12 18:33:32,448 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:33:32,449 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 122 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:32,449 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 128 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:33:32,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-09-12 18:33:32,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-09-12 18:33:32,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 97 states have (on average 1.402061855670103) internal successors, (136), 135 states have internal predecessors, (136), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:33:32,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 156 transitions. [2024-09-12 18:33:32,460 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 156 transitions. Word has length 52 [2024-09-12 18:33:32,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:32,461 INFO L474 AbstractCegarLoop]: Abstraction has 151 states and 156 transitions. [2024-09-12 18:33:32,461 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:33:32,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:32,462 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 156 transitions. [2024-09-12 18:33:32,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:33:32,462 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:32,462 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:32,484 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 18:33:32,666 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:33:32,667 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:32,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:32,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1709665158, now seen corresponding path program 1 times [2024-09-12 18:33:32,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:32,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065179706] [2024-09-12 18:33:32,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:32,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,731 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:33:32,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:32,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065179706] [2024-09-12 18:33:32,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065179706] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:33:32,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466463808] [2024-09-12 18:33:32,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:32,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:32,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:32,735 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:32,757 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:33:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:32,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:33:32,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:33:32,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:33:33,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466463808] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:33:33,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:33:33,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 18:33:33,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933467236] [2024-09-12 18:33:33,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:33:33,016 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:33:33,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:33,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:33:33,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:33:33,017 INFO L87 Difference]: Start difference. First operand 151 states and 156 transitions. Second operand has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 18:33:33,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:33,240 INFO L93 Difference]: Finished difference Result 247 states and 275 transitions. [2024-09-12 18:33:33,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:33:33,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 53 [2024-09-12 18:33:33,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:33,242 INFO L225 Difference]: With dead ends: 247 [2024-09-12 18:33:33,242 INFO L226 Difference]: Without dead ends: 238 [2024-09-12 18:33:33,242 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:33:33,243 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 273 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:33,243 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 281 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:33:33,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-09-12 18:33:33,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 142. [2024-09-12 18:33:33,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 97 states have (on average 1.309278350515464) internal successors, (127), 126 states have internal predecessors, (127), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:33:33,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 147 transitions. [2024-09-12 18:33:33,259 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 147 transitions. Word has length 53 [2024-09-12 18:33:33,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:33,259 INFO L474 AbstractCegarLoop]: Abstraction has 142 states and 147 transitions. [2024-09-12 18:33:33,260 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 18:33:33,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:33,260 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 147 transitions. [2024-09-12 18:33:33,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:33:33,261 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:33,261 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:33,279 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:33:33,462 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:33,462 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:33,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:33,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1617933948, now seen corresponding path program 1 times [2024-09-12 18:33:33,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:33,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309871302] [2024-09-12 18:33:33,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:33,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:33,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:33,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:33,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:33,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:33,612 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:33:33,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:33,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309871302] [2024-09-12 18:33:33,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309871302] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:33:33,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488846786] [2024-09-12 18:33:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:33,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:33,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:33,615 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:33,622 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:33:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:33,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:33:33,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:33,900 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:33:33,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:34,028 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 18:33:34,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488846786] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:33:34,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:33:34,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 11 [2024-09-12 18:33:34,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392656933] [2024-09-12 18:33:34,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:34,030 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:33:34,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:34,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:33:34,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:33:34,031 INFO L87 Difference]: Start difference. First operand 142 states and 147 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:33:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:34,958 INFO L93 Difference]: Finished difference Result 148 states and 152 transitions. [2024-09-12 18:33:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:33:34,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2024-09-12 18:33:34,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:34,961 INFO L225 Difference]: With dead ends: 148 [2024-09-12 18:33:34,961 INFO L226 Difference]: Without dead ends: 146 [2024-09-12 18:33:34,961 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:33:34,962 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 30 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:34,962 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 110 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:33:34,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-09-12 18:33:34,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-09-12 18:33:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 100 states have (on average 1.3) internal successors, (130), 129 states have internal predecessors, (130), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:33:34,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2024-09-12 18:33:34,982 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 59 [2024-09-12 18:33:34,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:34,983 INFO L474 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2024-09-12 18:33:34,983 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:33:34,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:34,983 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2024-09-12 18:33:34,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:33:34,984 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:34,984 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:35,002 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:33:35,188 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 18:33:35,189 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:35,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:35,189 INFO L85 PathProgramCache]: Analyzing trace with hash -187916004, now seen corresponding path program 1 times [2024-09-12 18:33:35,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845104870] [2024-09-12 18:33:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:35,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:33:35,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015364254] [2024-09-12 18:33:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:35,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:35,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:35,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:35,223 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:33:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:35,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:33:35,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:35,351 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:33:35,351 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:33:35,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:35,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845104870] [2024-09-12 18:33:35,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:33:35,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015364254] [2024-09-12 18:33:35,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015364254] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:33:35,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:33:35,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 18:33:35,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123201932] [2024-09-12 18:33:35,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:33:35,497 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:33:35,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:35,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:33:35,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:33:35,499 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 18:33:35,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:35,747 INFO L93 Difference]: Finished difference Result 327 states and 348 transitions. [2024-09-12 18:33:35,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:33:35,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 66 [2024-09-12 18:33:35,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:35,750 INFO L225 Difference]: With dead ends: 327 [2024-09-12 18:33:35,750 INFO L226 Difference]: Without dead ends: 325 [2024-09-12 18:33:35,750 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:33:35,751 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 346 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:35,751 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 313 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:33:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-09-12 18:33:35,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 223. [2024-09-12 18:33:35,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 171 states have (on average 1.3567251461988303) internal successors, (232), 199 states have internal predecessors, (232), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:33:35,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 266 transitions. [2024-09-12 18:33:35,792 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 266 transitions. Word has length 66 [2024-09-12 18:33:35,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:35,792 INFO L474 AbstractCegarLoop]: Abstraction has 223 states and 266 transitions. [2024-09-12 18:33:35,793 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 18:33:35,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:35,793 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 266 transitions. [2024-09-12 18:33:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 18:33:35,794 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:35,794 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:35,814 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 18:33:35,994 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:33:35,995 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:35,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:35,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1921905138, now seen corresponding path program 2 times [2024-09-12 18:33:35,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:35,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355386059] [2024-09-12 18:33:35,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:35,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:33:36,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855214053] [2024-09-12 18:33:36,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:33:36,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:36,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:36,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:36,020 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:33:36,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:33:36,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:33:36,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:33:36,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:36,341 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:33:36,342 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:33:36,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:36,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355386059] [2024-09-12 18:33:36,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:33:36,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855214053] [2024-09-12 18:33:36,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855214053] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:33:36,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:33:36,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-09-12 18:33:36,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417158701] [2024-09-12 18:33:36,601 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:33:36,602 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:33:36,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:36,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:33:36,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:33:36,603 INFO L87 Difference]: Start difference. First operand 223 states and 266 transitions. Second operand has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 18:33:37,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:37,424 INFO L93 Difference]: Finished difference Result 264 states and 307 transitions. [2024-09-12 18:33:37,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:33:37,425 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 70 [2024-09-12 18:33:37,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:37,426 INFO L225 Difference]: With dead ends: 264 [2024-09-12 18:33:37,426 INFO L226 Difference]: Without dead ends: 209 [2024-09-12 18:33:37,427 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:33:37,428 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 173 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:37,428 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 127 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:33:37,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-09-12 18:33:37,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-09-12 18:33:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 169 states have (on average 1.1715976331360947) internal successors, (198), 184 states have internal predecessors, (198), 17 states have call successors, (17), 8 states have call predecessors, (17), 7 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:33:37,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 231 transitions. [2024-09-12 18:33:37,472 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 231 transitions. Word has length 70 [2024-09-12 18:33:37,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:37,473 INFO L474 AbstractCegarLoop]: Abstraction has 209 states and 231 transitions. [2024-09-12 18:33:37,473 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 18:33:37,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:37,474 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 231 transitions. [2024-09-12 18:33:37,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-09-12 18:33:37,474 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:37,474 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:33:37,494 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 18:33:37,678 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:37,679 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:37,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:37,680 INFO L85 PathProgramCache]: Analyzing trace with hash 9523672, now seen corresponding path program 1 times [2024-09-12 18:33:37,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:37,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54403836] [2024-09-12 18:33:37,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:37,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:33:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 18:33:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 18:33:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,761 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-09-12 18:33:37,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:37,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54403836] [2024-09-12 18:33:37,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54403836] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:37,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:37,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:33:37,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066333198] [2024-09-12 18:33:37,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:37,762 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:33:37,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:37,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:33:37,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:33:37,763 INFO L87 Difference]: Start difference. First operand 209 states and 231 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:33:37,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:37,849 INFO L93 Difference]: Finished difference Result 209 states and 231 transitions. [2024-09-12 18:33:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:33:37,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 92 [2024-09-12 18:33:37,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:37,851 INFO L225 Difference]: With dead ends: 209 [2024-09-12 18:33:37,851 INFO L226 Difference]: Without dead ends: 206 [2024-09-12 18:33:37,851 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:33:37,852 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 41 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:37,852 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 60 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:33:37,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-09-12 18:33:37,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-09-12 18:33:37,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 169 states have (on average 1.136094674556213) internal successors, (192), 181 states have internal predecessors, (192), 17 states have call successors, (17), 8 states have call predecessors, (17), 7 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:33:37,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 225 transitions. [2024-09-12 18:33:37,896 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 225 transitions. Word has length 92 [2024-09-12 18:33:37,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:37,896 INFO L474 AbstractCegarLoop]: Abstraction has 206 states and 225 transitions. [2024-09-12 18:33:37,897 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:33:37,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:37,897 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 225 transitions. [2024-09-12 18:33:37,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 18:33:37,898 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:37,898 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:33:37,898 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:33:37,898 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:37,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:37,899 INFO L85 PathProgramCache]: Analyzing trace with hash 295233936, now seen corresponding path program 1 times [2024-09-12 18:33:37,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:37,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92638220] [2024-09-12 18:33:37,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:37,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:33:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 18:33:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 18:33:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-09-12 18:33:37,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:37,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92638220] [2024-09-12 18:33:37,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92638220] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:37,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:33:37,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:33:37,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327765979] [2024-09-12 18:33:37,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:37,947 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:33:37,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:37,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:33:37,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:33:37,948 INFO L87 Difference]: Start difference. First operand 206 states and 225 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:33:38,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:38,066 INFO L93 Difference]: Finished difference Result 206 states and 225 transitions. [2024-09-12 18:33:38,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:33:38,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 93 [2024-09-12 18:33:38,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:38,069 INFO L225 Difference]: With dead ends: 206 [2024-09-12 18:33:38,069 INFO L226 Difference]: Without dead ends: 201 [2024-09-12 18:33:38,069 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:33:38,070 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 38 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:38,070 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 78 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:33:38,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-09-12 18:33:38,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-09-12 18:33:38,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 167 states have (on average 1.1017964071856288) internal successors, (184), 176 states have internal predecessors, (184), 17 states have call successors, (17), 8 states have call predecessors, (17), 7 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:33:38,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 217 transitions. [2024-09-12 18:33:38,112 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 217 transitions. Word has length 93 [2024-09-12 18:33:38,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:38,112 INFO L474 AbstractCegarLoop]: Abstraction has 201 states and 217 transitions. [2024-09-12 18:33:38,113 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:33:38,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:38,113 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 217 transitions. [2024-09-12 18:33:38,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:33:38,114 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:38,114 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:33:38,114 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:33:38,114 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:38,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:38,115 INFO L85 PathProgramCache]: Analyzing trace with hash 251974354, now seen corresponding path program 1 times [2024-09-12 18:33:38,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:38,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613299131] [2024-09-12 18:33:38,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:38,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:38,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:38,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:38,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:38,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:38,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:33:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:38,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 18:33:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:38,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 18:33:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:33:38,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:38,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613299131] [2024-09-12 18:33:38,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613299131] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:33:38,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056179732] [2024-09-12 18:33:38,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:38,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:38,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:38,228 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:38,229 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:33:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:38,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:33:38,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:33:38,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:33:38,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056179732] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:33:38,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:33:38,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-09-12 18:33:38,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295267397] [2024-09-12 18:33:38,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:33:38,672 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:33:38,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:38,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:33:38,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=104, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:33:38,673 INFO L87 Difference]: Start difference. First operand 201 states and 217 transitions. Second operand has 14 states, 13 states have (on average 14.384615384615385) internal successors, (187), 14 states have internal predecessors, (187), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 18:33:39,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:39,031 INFO L93 Difference]: Finished difference Result 259 states and 292 transitions. [2024-09-12 18:33:39,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:33:39,031 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.384615384615385) internal successors, (187), 14 states have internal predecessors, (187), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 95 [2024-09-12 18:33:39,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:39,033 INFO L225 Difference]: With dead ends: 259 [2024-09-12 18:33:39,033 INFO L226 Difference]: Without dead ends: 258 [2024-09-12 18:33:39,034 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=156, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:33:39,034 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 97 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:39,035 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 202 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:33:39,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-09-12 18:33:39,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 222. [2024-09-12 18:33:39,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 186 states have (on average 1.10752688172043) internal successors, (206), 195 states have internal predecessors, (206), 19 states have call successors, (19), 8 states have call predecessors, (19), 7 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 18:33:39,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 243 transitions. [2024-09-12 18:33:39,100 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 243 transitions. Word has length 95 [2024-09-12 18:33:39,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:39,100 INFO L474 AbstractCegarLoop]: Abstraction has 222 states and 243 transitions. [2024-09-12 18:33:39,101 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.384615384615385) internal successors, (187), 14 states have internal predecessors, (187), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 18:33:39,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:39,101 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 243 transitions. [2024-09-12 18:33:39,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:33:39,102 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:39,102 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:39,123 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:33:39,303 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:39,303 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:39,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:39,304 INFO L85 PathProgramCache]: Analyzing trace with hash -820372738, now seen corresponding path program 1 times [2024-09-12 18:33:39,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:39,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844056256] [2024-09-12 18:33:39,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:39,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:33:39,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115163244] [2024-09-12 18:33:39,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:39,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:39,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:39,335 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:39,336 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:33:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:39,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:33:39,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:39,467 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:33:39,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:39,606 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:33:39,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:39,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844056256] [2024-09-12 18:33:39,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:33:39,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115163244] [2024-09-12 18:33:39,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115163244] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:33:39,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:33:39,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 18:33:39,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137997426] [2024-09-12 18:33:39,607 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:33:39,608 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:33:39,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:39,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:33:39,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:33:39,609 INFO L87 Difference]: Start difference. First operand 222 states and 243 transitions. Second operand has 8 states, 7 states have (on average 21.714285714285715) internal successors, (152), 8 states have internal predecessors, (152), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 18:33:39,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:39,890 INFO L93 Difference]: Finished difference Result 333 states and 374 transitions. [2024-09-12 18:33:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:33:39,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 21.714285714285715) internal successors, (152), 8 states have internal predecessors, (152), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 118 [2024-09-12 18:33:39,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:39,893 INFO L225 Difference]: With dead ends: 333 [2024-09-12 18:33:39,893 INFO L226 Difference]: Without dead ends: 331 [2024-09-12 18:33:39,893 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:33:39,894 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 242 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:39,894 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 384 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:33:39,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-09-12 18:33:39,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 269. [2024-09-12 18:33:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 229 states have (on average 1.1048034934497817) internal successors, (253), 237 states have internal predecessors, (253), 24 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:33:39,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 300 transitions. [2024-09-12 18:33:39,968 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 300 transitions. Word has length 118 [2024-09-12 18:33:39,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:39,969 INFO L474 AbstractCegarLoop]: Abstraction has 269 states and 300 transitions. [2024-09-12 18:33:39,969 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 21.714285714285715) internal successors, (152), 8 states have internal predecessors, (152), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 18:33:39,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:39,969 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 300 transitions. [2024-09-12 18:33:39,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 18:33:39,970 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:39,970 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:39,986 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:33:40,171 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:33:40,172 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:40,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:40,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1895783552, now seen corresponding path program 1 times [2024-09-12 18:33:40,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:40,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564688919] [2024-09-12 18:33:40,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:40,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:33:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 18:33:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 18:33:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:33:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:33:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,291 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:33:40,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:40,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564688919] [2024-09-12 18:33:40,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564688919] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:33:40,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064098507] [2024-09-12 18:33:40,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:40,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:40,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:40,293 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:40,301 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:33:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:40,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:33:40,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:40,515 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:33:40,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:40,652 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:33:40,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064098507] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:33:40,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:33:40,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-09-12 18:33:40,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541508301] [2024-09-12 18:33:40,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:33:40,654 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:33:40,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:40,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:33:40,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:33:40,655 INFO L87 Difference]: Start difference. First operand 269 states and 300 transitions. Second operand has 16 states, 15 states have (on average 14.466666666666667) internal successors, (217), 16 states have internal predecessors, (217), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2024-09-12 18:33:40,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:40,975 INFO L93 Difference]: Finished difference Result 307 states and 344 transitions. [2024-09-12 18:33:40,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:33:40,975 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 14.466666666666667) internal successors, (217), 16 states have internal predecessors, (217), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) Word has length 120 [2024-09-12 18:33:40,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:40,977 INFO L225 Difference]: With dead ends: 307 [2024-09-12 18:33:40,977 INFO L226 Difference]: Without dead ends: 303 [2024-09-12 18:33:40,977 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=168, Invalid=252, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:33:40,978 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 175 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:40,978 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 317 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:33:40,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-09-12 18:33:41,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 266. [2024-09-12 18:33:41,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 229 states have (on average 1.0655021834061136) internal successors, (244), 234 states have internal predecessors, (244), 24 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:33:41,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 291 transitions. [2024-09-12 18:33:41,028 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 291 transitions. Word has length 120 [2024-09-12 18:33:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:41,029 INFO L474 AbstractCegarLoop]: Abstraction has 266 states and 291 transitions. [2024-09-12 18:33:41,029 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 14.466666666666667) internal successors, (217), 16 states have internal predecessors, (217), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2024-09-12 18:33:41,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:41,029 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 291 transitions. [2024-09-12 18:33:41,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-09-12 18:33:41,030 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:41,030 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:41,043 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 18:33:41,230 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:41,231 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:41,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:41,231 INFO L85 PathProgramCache]: Analyzing trace with hash 781862402, now seen corresponding path program 1 times [2024-09-12 18:33:41,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:41,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622945827] [2024-09-12 18:33:41,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:41,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:33:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 18:33:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 18:33:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:33:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:33:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,361 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:33:41,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:41,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622945827] [2024-09-12 18:33:41,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622945827] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:33:41,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119323040] [2024-09-12 18:33:41,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:41,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:41,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:41,363 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:41,365 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:33:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:41,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:33:41,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:33:41,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:33:41,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119323040] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:33:41,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:33:41,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2024-09-12 18:33:41,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113572555] [2024-09-12 18:33:41,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:33:41,638 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:33:41,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:41,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:33:41,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:33:41,639 INFO L87 Difference]: Start difference. First operand 266 states and 291 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:33:41,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:41,803 INFO L93 Difference]: Finished difference Result 266 states and 291 transitions. [2024-09-12 18:33:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:33:41,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 122 [2024-09-12 18:33:41,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:41,805 INFO L225 Difference]: With dead ends: 266 [2024-09-12 18:33:41,805 INFO L226 Difference]: Without dead ends: 246 [2024-09-12 18:33:41,806 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:33:41,806 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 57 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:41,806 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 164 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:33:41,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-09-12 18:33:41,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-09-12 18:33:41,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 213 states have (on average 1.0328638497652582) internal successors, (220), 216 states have internal predecessors, (220), 22 states have call successors, (22), 8 states have call predecessors, (22), 7 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:33:41,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 263 transitions. [2024-09-12 18:33:41,853 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 263 transitions. Word has length 122 [2024-09-12 18:33:41,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:41,854 INFO L474 AbstractCegarLoop]: Abstraction has 246 states and 263 transitions. [2024-09-12 18:33:41,854 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:33:41,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:41,854 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 263 transitions. [2024-09-12 18:33:41,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-09-12 18:33:41,855 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:41,856 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:41,869 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:33:42,056 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:42,057 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:42,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash 703520070, now seen corresponding path program 2 times [2024-09-12 18:33:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125969354] [2024-09-12 18:33:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:42,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:33:42,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [992608980] [2024-09-12 18:33:42,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:33:42,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:42,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:42,079 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:42,079 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 18:33:42,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:33:42,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:33:42,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:33:42,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:33:42,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:42,547 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:33:42,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:42,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125969354] [2024-09-12 18:33:42,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:33:42,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992608980] [2024-09-12 18:33:42,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992608980] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:33:42,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:33:42,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-12 18:33:42,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077595667] [2024-09-12 18:33:42,549 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:33:42,549 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:33:42,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:42,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:33:42,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:33:42,550 INFO L87 Difference]: Start difference. First operand 246 states and 263 transitions. Second operand has 12 states, 11 states have (on average 24.363636363636363) internal successors, (268), 12 states have internal predecessors, (268), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-09-12 18:33:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:42,966 INFO L93 Difference]: Finished difference Result 388 states and 418 transitions. [2024-09-12 18:33:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:33:42,966 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 24.363636363636363) internal successors, (268), 12 states have internal predecessors, (268), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 201 [2024-09-12 18:33:42,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:42,968 INFO L225 Difference]: With dead ends: 388 [2024-09-12 18:33:42,968 INFO L226 Difference]: Without dead ends: 387 [2024-09-12 18:33:42,969 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:33:42,969 INFO L434 NwaCegarLoop]: 127 mSDtfsCounter, 134 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:42,969 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 699 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:33:42,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-09-12 18:33:43,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 375. [2024-09-12 18:33:43,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 331 states have (on average 1.0483383685800605) internal successors, (347), 334 states have internal predecessors, (347), 33 states have call successors, (33), 8 states have call predecessors, (33), 7 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 18:33:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 412 transitions. [2024-09-12 18:33:43,087 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 412 transitions. Word has length 201 [2024-09-12 18:33:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:43,087 INFO L474 AbstractCegarLoop]: Abstraction has 375 states and 412 transitions. [2024-09-12 18:33:43,088 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 24.363636363636363) internal successors, (268), 12 states have internal predecessors, (268), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-09-12 18:33:43,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 412 transitions. [2024-09-12 18:33:43,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-09-12 18:33:43,089 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:43,090 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:43,107 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 18:33:43,290 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 18:33:43,291 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:43,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:43,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1504722664, now seen corresponding path program 2 times [2024-09-12 18:33:43,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:43,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925758305] [2024-09-12 18:33:43,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:43,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:33:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 18:33:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 18:33:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:33:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:33:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:33:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:33:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 18:33:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:33:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 18:33:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:33:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 18:33:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:43,556 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:33:43,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:43,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925758305] [2024-09-12 18:33:43,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925758305] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:33:43,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069378392] [2024-09-12 18:33:43,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:33:43,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:43,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:43,558 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:43,559 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 18:33:43,616 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:33:43,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:33:43,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:33:43,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 24 proven. 24 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-09-12 18:33:43,807 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:44,033 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-09-12 18:33:44,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069378392] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:33:44,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:33:44,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 19 [2024-09-12 18:33:44,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725290662] [2024-09-12 18:33:44,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:33:44,034 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 18:33:44,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:44,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 18:33:44,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:33:44,036 INFO L87 Difference]: Start difference. First operand 375 states and 412 transitions. Second operand has 20 states, 19 states have (on average 12.68421052631579) internal successors, (241), 20 states have internal predecessors, (241), 10 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2024-09-12 18:33:44,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:44,769 INFO L93 Difference]: Finished difference Result 375 states and 412 transitions. [2024-09-12 18:33:44,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 18:33:44,770 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 12.68421052631579) internal successors, (241), 20 states have internal predecessors, (241), 10 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) Word has length 230 [2024-09-12 18:33:44,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:44,772 INFO L225 Difference]: With dead ends: 375 [2024-09-12 18:33:44,772 INFO L226 Difference]: Without dead ends: 374 [2024-09-12 18:33:44,773 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=382, Invalid=1510, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 18:33:44,773 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 285 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:44,773 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 728 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:33:44,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-09-12 18:33:44,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2024-09-12 18:33:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 331 states have (on average 1.0302114803625377) internal successors, (341), 333 states have internal predecessors, (341), 33 states have call successors, (33), 8 states have call predecessors, (33), 7 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 18:33:44,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 406 transitions. [2024-09-12 18:33:44,869 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 406 transitions. Word has length 230 [2024-09-12 18:33:44,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:44,869 INFO L474 AbstractCegarLoop]: Abstraction has 374 states and 406 transitions. [2024-09-12 18:33:44,870 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 12.68421052631579) internal successors, (241), 20 states have internal predecessors, (241), 10 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2024-09-12 18:33:44,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 406 transitions. [2024-09-12 18:33:44,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-09-12 18:33:44,872 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:44,872 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:44,885 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 18:33:45,076 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:45,077 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:45,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:45,077 INFO L85 PathProgramCache]: Analyzing trace with hash -999123670, now seen corresponding path program 2 times [2024-09-12 18:33:45,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:45,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411951754] [2024-09-12 18:33:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:45,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:33:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:33:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:33:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:33:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:33:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 18:33:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 18:33:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:33:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:33:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:33:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:33:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 18:33:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:33:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 18:33:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:33:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 18:33:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 18:33:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 18:33:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:33:45,556 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 0 proven. 415 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:33:45,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:45,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411951754] [2024-09-12 18:33:45,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411951754] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:33:45,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217563035] [2024-09-12 18:33:45,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:33:45,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:45,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:45,558 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:45,559 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 18:33:45,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:33:45,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:33:45,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:33:45,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:46,126 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 0 proven. 415 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:33:46,127 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:46,522 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 0 proven. 415 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:33:46,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217563035] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:33:46,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:33:46,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2024-09-12 18:33:46,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957828179] [2024-09-12 18:33:46,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:33:46,524 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 18:33:46,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:46,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 18:33:46,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=897, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 18:33:46,527 INFO L87 Difference]: Start difference. First operand 374 states and 406 transitions. Second operand has 35 states, 34 states have (on average 14.764705882352942) internal successors, (502), 35 states have internal predecessors, (502), 19 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (52), 19 states have call predecessors, (52), 19 states have call successors, (52) [2024-09-12 18:33:47,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:47,589 INFO L93 Difference]: Finished difference Result 450 states and 492 transitions. [2024-09-12 18:33:47,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:33:47,590 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 14.764705882352942) internal successors, (502), 35 states have internal predecessors, (502), 19 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (52), 19 states have call predecessors, (52), 19 states have call successors, (52) Word has length 255 [2024-09-12 18:33:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:47,592 INFO L225 Difference]: With dead ends: 450 [2024-09-12 18:33:47,592 INFO L226 Difference]: Without dead ends: 449 [2024-09-12 18:33:47,593 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=941, Invalid=2139, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 18:33:47,594 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 251 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:47,594 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 887 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:33:47,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-09-12 18:33:47,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 445. [2024-09-12 18:33:47,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 395 states have (on average 1.0278481012658227) internal successors, (406), 397 states have internal predecessors, (406), 40 states have call successors, (40), 8 states have call predecessors, (40), 7 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:33:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 485 transitions. [2024-09-12 18:33:47,703 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 485 transitions. Word has length 255 [2024-09-12 18:33:47,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:47,703 INFO L474 AbstractCegarLoop]: Abstraction has 445 states and 485 transitions. [2024-09-12 18:33:47,703 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 14.764705882352942) internal successors, (502), 35 states have internal predecessors, (502), 19 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (52), 19 states have call predecessors, (52), 19 states have call successors, (52) [2024-09-12 18:33:47,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:47,704 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 485 transitions. [2024-09-12 18:33:47,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-09-12 18:33:47,706 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:47,706 INFO L216 NwaCegarLoop]: trace histogram [20, 20, 20, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:47,719 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:33:47,906 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:33:47,907 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:47,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:47,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1974774914, now seen corresponding path program 2 times [2024-09-12 18:33:47,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:47,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150424016] [2024-09-12 18:33:47,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:47,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:33:47,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250309179] [2024-09-12 18:33:47,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:33:47,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:47,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:47,953 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:47,955 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 18:33:48,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:33:48,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:33:48,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:33:48,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:48,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 0 proven. 585 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 18:33:48,281 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:33:48,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 0 proven. 585 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 18:33:48,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:33:48,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150424016] [2024-09-12 18:33:48,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:33:48,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250309179] [2024-09-12 18:33:48,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250309179] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:33:48,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:33:48,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-09-12 18:33:48,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011120711] [2024-09-12 18:33:48,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:33:48,676 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:33:48,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:33:48,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:33:48,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:33:48,677 INFO L87 Difference]: Start difference. First operand 445 states and 485 transitions. Second operand has 16 states, 15 states have (on average 26.133333333333333) internal successors, (392), 16 states have internal predecessors, (392), 15 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 15 states have call predecessors, (41), 15 states have call successors, (41) [2024-09-12 18:33:49,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:33:49,427 INFO L93 Difference]: Finished difference Result 515 states and 560 transitions. [2024-09-12 18:33:49,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:33:49,428 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 26.133333333333333) internal successors, (392), 16 states have internal predecessors, (392), 15 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 15 states have call predecessors, (41), 15 states have call successors, (41) Word has length 298 [2024-09-12 18:33:49,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:33:49,431 INFO L225 Difference]: With dead ends: 515 [2024-09-12 18:33:49,431 INFO L226 Difference]: Without dead ends: 514 [2024-09-12 18:33:49,432 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:33:49,432 INFO L434 NwaCegarLoop]: 164 mSDtfsCounter, 135 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:33:49,432 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1147 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:33:49,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-09-12 18:33:49,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 509. [2024-09-12 18:33:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 453 states have (on average 1.0176600441501105) internal successors, (461), 455 states have internal predecessors, (461), 46 states have call successors, (46), 8 states have call predecessors, (46), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 18:33:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 552 transitions. [2024-09-12 18:33:49,572 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 552 transitions. Word has length 298 [2024-09-12 18:33:49,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:33:49,572 INFO L474 AbstractCegarLoop]: Abstraction has 509 states and 552 transitions. [2024-09-12 18:33:49,573 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 26.133333333333333) internal successors, (392), 16 states have internal predecessors, (392), 15 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 15 states have call predecessors, (41), 15 states have call successors, (41) [2024-09-12 18:33:49,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 552 transitions. [2024-09-12 18:33:49,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-09-12 18:33:49,577 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:33:49,577 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2024-09-12 18:33:49,585 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 18:33:49,781 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 18:33:49,782 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:33:49,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:33:49,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1791133830, now seen corresponding path program 3 times [2024-09-12 18:33:49,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:33:49,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376293151] [2024-09-12 18:33:49,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:33:49,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:33:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:33:49,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382760060] [2024-09-12 18:33:49,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:33:49,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:33:49,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:33:49,844 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:33:49,845 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 18:33:49,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 18:33:49,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:33:49,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:33:49,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:33:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3465 backedges. 228 proven. 174 refuted. 0 times theorem prover too weak. 3063 trivial. 0 not checked. [2024-09-12 18:33:50,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:13,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:13,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376293151] [2024-09-12 18:34:13,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:34:13,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382760060] [2024-09-12 18:34:13,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382760060] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:34:13,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:34:13,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:34:13,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334979130] [2024-09-12 18:34:13,113 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:13,114 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:34:13,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:13,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:34:13,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=240, Unknown=4, NotChecked=0, Total=306 [2024-09-12 18:34:13,115 INFO L87 Difference]: Start difference. First operand 509 states and 552 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:34:14,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:14,066 INFO L93 Difference]: Finished difference Result 509 states and 552 transitions. [2024-09-12 18:34:14,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:34:14,067 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 471 [2024-09-12 18:34:14,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:14,070 INFO L225 Difference]: With dead ends: 509 [2024-09-12 18:34:14,070 INFO L226 Difference]: Without dead ends: 507 [2024-09-12 18:34:14,071 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=141, Invalid=407, Unknown=4, NotChecked=0, Total=552 [2024-09-12 18:34:14,072 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 174 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:14,073 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 70 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:34:14,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-09-12 18:34:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 443. [2024-09-12 18:34:14,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 395 states have (on average 1.0025316455696203) internal successors, (396), 395 states have internal predecessors, (396), 40 states have call successors, (40), 8 states have call predecessors, (40), 7 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:34:14,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 475 transitions. [2024-09-12 18:34:14,283 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 475 transitions. Word has length 471 [2024-09-12 18:34:14,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:14,284 INFO L474 AbstractCegarLoop]: Abstraction has 443 states and 475 transitions. [2024-09-12 18:34:14,284 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 18:34:14,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:14,284 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 475 transitions. [2024-09-12 18:34:14,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2024-09-12 18:34:14,292 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:34:14,292 INFO L216 NwaCegarLoop]: trace histogram [38, 38, 38, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:14,320 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 18:34:14,493 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:14,493 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:34:14,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:14,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1698627136, now seen corresponding path program 3 times [2024-09-12 18:34:14,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:34:14,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959413810] [2024-09-12 18:34:14,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:34:14,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:34:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:34:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 18:34:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:34:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:34:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:34:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 18:34:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 18:34:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:34:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:34:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:34:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:34:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 18:34:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:34:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 18:34:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:34:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 18:34:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 18:34:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 18:34:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 18:34:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 18:34:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 18:34:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 18:34:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:34:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 18:34:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 18:34:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 18:34:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-09-12 18:34:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2024-09-12 18:34:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2024-09-12 18:34:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2024-09-12 18:34:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2024-09-12 18:34:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2024-09-12 18:34:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2024-09-12 18:34:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-09-12 18:34:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2024-09-12 18:34:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2024-09-12 18:34:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2024-09-12 18:34:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2024-09-12 18:34:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 561 [2024-09-12 18:34:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:34:15,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5194 backedges. 0 proven. 2382 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-09-12 18:34:15,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:34:15,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959413810] [2024-09-12 18:34:15,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959413810] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:34:15,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174714301] [2024-09-12 18:34:15,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:34:15,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:15,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:34:15,647 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:34:15,649 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 18:34:15,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:34:15,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:34:15,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:34:15,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:34:16,318 INFO L134 CoverageAnalysis]: Checked inductivity of 5194 backedges. 216 proven. 270 refuted. 0 times theorem prover too weak. 4708 trivial. 0 not checked. [2024-09-12 18:34:16,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:34:18,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174714301] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:34:18,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:34:18,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 8] total 33 [2024-09-12 18:34:18,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645606321] [2024-09-12 18:34:18,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:34:18,935 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 18:34:18,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:34:18,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 18:34:18,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1428, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 18:34:18,937 INFO L87 Difference]: Start difference. First operand 443 states and 475 transitions. Second operand has 34 states, 33 states have (on average 13.212121212121213) internal successors, (436), 34 states have internal predecessors, (436), 17 states have call successors, (45), 1 states have call predecessors, (45), 2 states have return successors, (44), 17 states have call predecessors, (44), 17 states have call successors, (44) [2024-09-12 18:34:26,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:34:26,149 INFO L93 Difference]: Finished difference Result 457 states and 490 transitions. [2024-09-12 18:34:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-09-12 18:34:26,150 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 13.212121212121213) internal successors, (436), 34 states have internal predecessors, (436), 17 states have call successors, (45), 1 states have call predecessors, (45), 2 states have return successors, (44), 17 states have call predecessors, (44), 17 states have call successors, (44) Word has length 570 [2024-09-12 18:34:26,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:34:26,151 INFO L225 Difference]: With dead ends: 457 [2024-09-12 18:34:26,151 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:34:26,155 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 780 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3484 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1529, Invalid=11353, Unknown=0, NotChecked=0, Total=12882 [2024-09-12 18:34:26,155 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 816 mSDsluCounter, 2102 mSDsCounter, 0 mSdLazyCounter, 7621 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 7760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 7621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:34:26,156 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 2200 Invalid, 7760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 7621 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-09-12 18:34:26,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:34:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:34:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 18:34:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:34:26,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 570 [2024-09-12 18:34:26,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:34:26,157 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:34:26,157 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 13.212121212121213) internal successors, (436), 34 states have internal predecessors, (436), 17 states have call successors, (45), 1 states have call predecessors, (45), 2 states have return successors, (44), 17 states have call predecessors, (44), 17 states have call successors, (44) [2024-09-12 18:34:26,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:34:26,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:34:26,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:34:26,159 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 51 remaining) [2024-09-12 18:34:26,160 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 51 remaining) [2024-09-12 18:34:26,160 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 51 remaining) [2024-09-12 18:34:26,160 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 51 remaining) [2024-09-12 18:34:26,160 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 51 remaining) [2024-09-12 18:34:26,160 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 51 remaining) [2024-09-12 18:34:26,160 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 51 remaining) [2024-09-12 18:34:26,160 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 51 remaining) [2024-09-12 18:34:26,160 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 51 remaining) [2024-09-12 18:34:26,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 51 remaining) [2024-09-12 18:34:26,162 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 51 remaining) [2024-09-12 18:34:26,163 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 51 remaining) [2024-09-12 18:34:26,163 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 51 remaining) [2024-09-12 18:34:26,163 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 51 remaining) [2024-09-12 18:34:26,163 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 51 remaining) [2024-09-12 18:34:26,163 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 51 remaining) [2024-09-12 18:34:26,163 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 51 remaining) [2024-09-12 18:34:26,163 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 51 remaining) [2024-09-12 18:34:26,163 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 51 remaining) [2024-09-12 18:34:26,163 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 51 remaining) [2024-09-12 18:34:26,164 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 51 remaining) [2024-09-12 18:34:26,164 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 51 remaining) [2024-09-12 18:34:26,164 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 51 remaining) [2024-09-12 18:34:26,164 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 51 remaining) [2024-09-12 18:34:26,164 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 51 remaining) [2024-09-12 18:34:26,180 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 18:34:26,368 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:34:26,371 INFO L408 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:34:26,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 18:34:51,459 WARN L293 SmtUtils]: Spent 16.73s on a formula simplification. DAG size of input: 271 DAG size of output: 43 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 18:35:00,912 WARN L293 SmtUtils]: Spent 8.48s on a formula simplification. DAG size of input: 283 DAG size of output: 49 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 18:35:44,154 WARN L293 SmtUtils]: Spent 16.71s on a formula simplification. DAG size of input: 271 DAG size of output: 43 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 18:35:53,835 WARN L293 SmtUtils]: Spent 8.47s on a formula simplification. DAG size of input: 283 DAG size of output: 49 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 18:36:02,001 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 18:36:02,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 06:36:02 BoogieIcfgContainer [2024-09-12 18:36:02,023 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 18:36:02,023 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 18:36:02,024 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 18:36:02,024 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 18:36:02,024 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:33:28" (3/4) ... [2024-09-12 18:36:02,029 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 18:36:02,031 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 18:36:02,031 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 18:36:02,031 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 18:36:02,036 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-09-12 18:36:02,037 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 18:36:02,038 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 18:36:02,038 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 18:36:02,128 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 18:36:02,128 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 18:36:02,128 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 18:36:02,129 INFO L158 Benchmark]: Toolchain (without parser) took 154190.67ms. Allocated memory was 75.5MB in the beginning and 874.5MB in the end (delta: 799.0MB). Free memory was 52.9MB in the beginning and 823.5MB in the end (delta: -770.5MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-09-12 18:36:02,129 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 75.5MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 18:36:02,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.01ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 41.1MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 18:36:02,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.08ms. Allocated memory is still 75.5MB. Free memory was 41.1MB in the beginning and 40.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 18:36:02,131 INFO L158 Benchmark]: Boogie Preprocessor took 40.28ms. Allocated memory is still 75.5MB. Free memory was 40.1MB in the beginning and 38.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 18:36:02,132 INFO L158 Benchmark]: RCFGBuilder took 645.31ms. Allocated memory was 75.5MB in the beginning and 119.5MB in the end (delta: 44.0MB). Free memory was 38.2MB in the beginning and 85.7MB in the end (delta: -47.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-12 18:36:02,132 INFO L158 Benchmark]: TraceAbstraction took 153161.84ms. Allocated memory was 119.5MB in the beginning and 874.5MB in the end (delta: 755.0MB). Free memory was 85.2MB in the beginning and 828.7MB in the end (delta: -743.5MB). Peak memory consumption was 522.0MB. Max. memory is 16.1GB. [2024-09-12 18:36:02,132 INFO L158 Benchmark]: Witness Printer took 104.78ms. Allocated memory is still 874.5MB. Free memory was 828.7MB in the beginning and 823.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 18:36:02,133 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 75.5MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.01ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 41.1MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.08ms. Allocated memory is still 75.5MB. Free memory was 41.1MB in the beginning and 40.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.28ms. Allocated memory is still 75.5MB. Free memory was 40.1MB in the beginning and 38.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 645.31ms. Allocated memory was 75.5MB in the beginning and 119.5MB in the end (delta: 44.0MB). Free memory was 38.2MB in the beginning and 85.7MB in the end (delta: -47.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 153161.84ms. Allocated memory was 119.5MB in the beginning and 874.5MB in the end (delta: 755.0MB). Free memory was 85.2MB in the beginning and 828.7MB in the end (delta: -743.5MB). Peak memory consumption was 522.0MB. Max. memory is 16.1GB. * Witness Printer took 104.78ms. Allocated memory is still 874.5MB. Free memory was 828.7MB in the beginning and 823.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 123 locations, 51 error locations. Started 1 CEGAR loops. OverallTime: 57.4s, OverallIterations: 26, TraceHistogramMax: 38, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 16.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3768 SdHoareTripleChecker+Valid, 10.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3691 mSDsluCounter, 9728 SdHoareTripleChecker+Invalid, 8.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7664 mSDsCounter, 550 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14387 IncrementalHoareTripleChecker+Invalid, 14937 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 550 mSolverCounterUnsat, 2064 mSDtfsCounter, 14387 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5011 GetRequests, 4626 SyntacticMatches, 2 SemanticMatches, 383 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4943 ImplicationChecksByTransitivity, 22.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred in iteration=24, InterpolantAutomatonStates: 288, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 26 MinimizatonAttempts, 471 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 34.7s InterpolantComputationTime, 6074 NumberOfCodeBlocks, 5152 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 6302 ConstructedInterpolants, 4 QuantifiedInterpolants, 28510 SizeOfPredicates, 16 NumberOfNonLiveVariables, 3172 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 46 InterpolantComputations, 14 PerfectInterpolantSequences, 18129/24848 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 51 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((((((((__int128) a * 2) + ((__int128) a * a)) + 1) == s) && (1 <= a)) && (n <= 2147483647)) && (s <= (2147483647 + t))) && (t == (((__int128) a * 2) + 1))) || ((((a == 0) && (t == 1)) && (s == 1)) && (n <= 2147483647))) - ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0) RESULT: Ultimate proved your program to be correct! [2024-09-12 18:36:02,322 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE