./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a93c350e5795e32421c3bef9d7525c3fd53f570f971d574def19132b3d6f08b8 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:14:15,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:14:15,941 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:14:15,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:14:15,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:14:15,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:14:15,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:14:15,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:14:15,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:14:15,973 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:14:15,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:14:15,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:14:15,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:14:15,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:14:15,974 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:14:15,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:14:15,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:14:15,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:14:15,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:14:15,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:14:15,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:14:15,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:14:15,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:14:15,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:14:15,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:14:15,978 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:14:15,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:14:15,979 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:14:15,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:14:15,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:14:15,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:14:15,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:14:15,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:14:15,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:14:15,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:14:15,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:14:15,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:14:15,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:14:15,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:14:15,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:14:15,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:14:15,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:14:15,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a93c350e5795e32421c3bef9d7525c3fd53f570f971d574def19132b3d6f08b8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:14:16,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:14:16,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:14:16,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:14:16,230 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:14:16,230 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:14:16,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c [2024-09-12 19:14:17,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:14:17,761 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:14:17,762 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c [2024-09-12 19:14:17,768 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/baf007ebd/46af83a9173d451191cda62013b53cc5/FLAGdb490129d [2024-09-12 19:14:17,779 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/baf007ebd/46af83a9173d451191cda62013b53cc5 [2024-09-12 19:14:17,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:14:17,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:14:17,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:14:17,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:14:17,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:14:17,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:14:17" (1/1) ... [2024-09-12 19:14:17,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cb24b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:17, skipping insertion in model container [2024-09-12 19:14:17,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:14:17" (1/1) ... [2024-09-12 19:14:17,804 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:14:17,931 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c[538,551] [2024-09-12 19:14:17,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:14:17,968 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:14:17,977 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c[538,551] [2024-09-12 19:14:17,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:14:18,001 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:14:18,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18 WrapperNode [2024-09-12 19:14:18,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:14:18,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:14:18,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:14:18,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:14:18,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,021 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:14:18,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:14:18,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:14:18,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:14:18,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:14:18,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,031 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,048 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:14:18,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:14:18,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:14:18,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:14:18,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:14:18,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (1/1) ... [2024-09-12 19:14:18,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:14:18,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:18,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:14:18,097 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:14:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:14:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:14:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:14:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:14:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:14:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:14:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:14:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:14:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:14:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:14:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:14:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:14:18,192 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:14:18,194 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:14:18,503 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-09-12 19:14:18,504 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:14:18,530 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:14:18,530 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 19:14:18,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:14:18 BoogieIcfgContainer [2024-09-12 19:14:18,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:14:18,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:14:18,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:14:18,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:14:18,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:14:17" (1/3) ... [2024-09-12 19:14:18,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fd9d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:14:18, skipping insertion in model container [2024-09-12 19:14:18,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:18" (2/3) ... [2024-09-12 19:14:18,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fd9d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:14:18, skipping insertion in model container [2024-09-12 19:14:18,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:14:18" (3/3) ... [2024-09-12 19:14:18,538 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound5.c [2024-09-12 19:14:18,550 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:14:18,551 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-09-12 19:14:18,616 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:14:18,622 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;@40a7ae0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:14:18,623 INFO L337 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-09-12 19:14:18,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 42 states have (on average 1.8095238095238095) internal successors, (76), 67 states have internal predecessors, (76), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:14:18,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 19:14:18,631 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:18,631 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:18,632 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:18,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:18,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1510046667, now seen corresponding path program 1 times [2024-09-12 19:14:18,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:18,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119294328] [2024-09-12 19:14:18,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:18,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:18,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:18,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:18,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:18,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:18,785 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 19:14:18,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:18,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119294328] [2024-09-12 19:14:18,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119294328] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:18,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:18,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:14:18,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19866342] [2024-09-12 19:14:18,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:18,793 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:14:18,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:18,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:14:18,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:14:18,820 INFO L87 Difference]: Start difference. First operand has 84 states, 42 states have (on average 1.8095238095238095) internal successors, (76), 67 states have internal predecessors, (76), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:14:18,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:18,852 INFO L93 Difference]: Finished difference Result 162 states and 203 transitions. [2024-09-12 19:14:18,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:14:18,857 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-09-12 19:14:18,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:18,863 INFO L225 Difference]: With dead ends: 162 [2024-09-12 19:14:18,864 INFO L226 Difference]: Without dead ends: 80 [2024-09-12 19:14:18,866 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:14:18,868 INFO L434 NwaCegarLoop]: 92 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, 92 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:18,869 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:14:18,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-09-12 19:14:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-09-12 19:14:18,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 40 states have (on average 1.7) internal successors, (68), 65 states have internal predecessors, (68), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:14:18,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2024-09-12 19:14:18,899 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 25 [2024-09-12 19:14:18,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:18,900 INFO L474 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2024-09-12 19:14:18,900 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:14:18,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:18,901 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2024-09-12 19:14:18,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:14:18,902 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:18,902 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:18,902 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:14:18,902 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:18,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:18,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1712065858, now seen corresponding path program 1 times [2024-09-12 19:14:18,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:18,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293418757] [2024-09-12 19:14:18,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:18,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,121 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 19:14:19,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:19,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293418757] [2024-09-12 19:14:19,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293418757] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:19,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:19,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:14:19,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263051825] [2024-09-12 19:14:19,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:19,123 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:19,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:19,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:19,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:19,124 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:14:19,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:19,247 INFO L93 Difference]: Finished difference Result 123 states and 143 transitions. [2024-09-12 19:14:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:19,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-09-12 19:14:19,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:19,249 INFO L225 Difference]: With dead ends: 123 [2024-09-12 19:14:19,249 INFO L226 Difference]: Without dead ends: 117 [2024-09-12 19:14:19,249 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:19,250 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 47 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:19,251 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 250 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:19,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-09-12 19:14:19,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 101. [2024-09-12 19:14:19,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 58 states have (on average 1.6551724137931034) internal successors, (96), 83 states have internal predecessors, (96), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:14:19,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 122 transitions. [2024-09-12 19:14:19,269 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 122 transitions. Word has length 27 [2024-09-12 19:14:19,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:19,269 INFO L474 AbstractCegarLoop]: Abstraction has 101 states and 122 transitions. [2024-09-12 19:14:19,269 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:14:19,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:19,272 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 122 transitions. [2024-09-12 19:14:19,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 19:14:19,273 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:19,273 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] [2024-09-12 19:14:19,274 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:14:19,274 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:19,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:19,276 INFO L85 PathProgramCache]: Analyzing trace with hash -138509034, now seen corresponding path program 1 times [2024-09-12 19:14:19,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:19,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987852536] [2024-09-12 19:14:19,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:19,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,376 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 19:14:19,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:19,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987852536] [2024-09-12 19:14:19,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987852536] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:19,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:19,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:14:19,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147318709] [2024-09-12 19:14:19,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:19,377 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:19,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:19,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:19,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:19,378 INFO L87 Difference]: Start difference. First operand 101 states and 122 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:14:19,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:19,526 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2024-09-12 19:14:19,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:19,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 32 [2024-09-12 19:14:19,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:19,527 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:14:19,528 INFO L226 Difference]: Without dead ends: 117 [2024-09-12 19:14:19,528 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:19,529 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 43 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:19,529 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 263 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:19,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-09-12 19:14:19,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 105. [2024-09-12 19:14:19,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 61 states have (on average 1.6229508196721312) internal successors, (99), 86 states have internal predecessors, (99), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:14:19,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2024-09-12 19:14:19,544 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 32 [2024-09-12 19:14:19,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:19,545 INFO L474 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2024-09-12 19:14:19,545 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:14:19,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:19,545 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2024-09-12 19:14:19,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:14:19,546 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:19,546 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:19,546 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:14:19,546 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:19,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:19,547 INFO L85 PathProgramCache]: Analyzing trace with hash 36962601, now seen corresponding path program 1 times [2024-09-12 19:14:19,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:19,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758395919] [2024-09-12 19:14:19,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:19,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:19,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772580916] [2024-09-12 19:14:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:19,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:19,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:19,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:19,563 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:14:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:14:19,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:14:19,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:14:19,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:19,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758395919] [2024-09-12 19:14:19,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:19,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772580916] [2024-09-12 19:14:19,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772580916] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:19,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:19,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:14:19,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001986992] [2024-09-12 19:14:19,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:19,621 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:14:19,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:19,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:14:19,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:19,621 INFO L87 Difference]: Start difference. First operand 105 states and 125 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:14:19,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:19,674 INFO L93 Difference]: Finished difference Result 200 states and 245 transitions. [2024-09-12 19:14:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:14:19,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2024-09-12 19:14:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:19,676 INFO L225 Difference]: With dead ends: 200 [2024-09-12 19:14:19,676 INFO L226 Difference]: Without dead ends: 130 [2024-09-12 19:14:19,677 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:19,677 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 18 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:19,678 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 147 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:14:19,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-09-12 19:14:19,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2024-09-12 19:14:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 77 states have (on average 1.5584415584415585) internal successors, (120), 102 states have internal predecessors, (120), 19 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:14:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2024-09-12 19:14:19,697 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 34 [2024-09-12 19:14:19,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:19,698 INFO L474 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2024-09-12 19:14:19,698 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:14:19,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:19,698 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2024-09-12 19:14:19,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:14:19,699 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:19,699 INFO L216 NwaCegarLoop]: trace histogram [3, 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] [2024-09-12 19:14:19,716 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 19:14:19,900 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 19:14:19,901 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:19,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:19,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1021481760, now seen corresponding path program 1 times [2024-09-12 19:14:19,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:19,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604537322] [2024-09-12 19:14:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:19,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058277912] [2024-09-12 19:14:19,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:19,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:19,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:19,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:19,919 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:14:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:14:19,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:14:20,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:14:20,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:20,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604537322] [2024-09-12 19:14:20,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:20,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058277912] [2024-09-12 19:14:20,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058277912] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:20,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:20,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:14:20,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039461339] [2024-09-12 19:14:20,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:20,016 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:20,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:20,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:20,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:20,017 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:14:20,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:20,193 INFO L93 Difference]: Finished difference Result 134 states and 161 transitions. [2024-09-12 19:14:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:20,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-09-12 19:14:20,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:20,194 INFO L225 Difference]: With dead ends: 134 [2024-09-12 19:14:20,194 INFO L226 Difference]: Without dead ends: 130 [2024-09-12 19:14:20,195 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:20,195 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 13 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:20,196 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 240 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:14:20,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-09-12 19:14:20,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-09-12 19:14:20,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 80 states have (on average 1.5125) internal successors, (121), 105 states have internal predecessors, (121), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:14:20,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 157 transitions. [2024-09-12 19:14:20,213 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 157 transitions. Word has length 39 [2024-09-12 19:14:20,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:20,213 INFO L474 AbstractCegarLoop]: Abstraction has 130 states and 157 transitions. [2024-09-12 19:14:20,213 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:14:20,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:20,214 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 157 transitions. [2024-09-12 19:14:20,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 19:14:20,215 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:20,215 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:20,227 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:14:20,415 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:20,415 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:20,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:20,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1591000955, now seen corresponding path program 1 times [2024-09-12 19:14:20,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:20,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274789859] [2024-09-12 19:14:20,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:20,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:20,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:20,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:20,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:20,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:20,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:20,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:20,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:14:20,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:20,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274789859] [2024-09-12 19:14:20,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274789859] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:20,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:20,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:14:20,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434685358] [2024-09-12 19:14:20,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:20,514 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:14:20,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:20,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:14:20,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:14:20,515 INFO L87 Difference]: Start difference. First operand 130 states and 157 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:21,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:21,134 INFO L93 Difference]: Finished difference Result 148 states and 175 transitions. [2024-09-12 19:14:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:21,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 45 [2024-09-12 19:14:21,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:21,137 INFO L225 Difference]: With dead ends: 148 [2024-09-12 19:14:21,139 INFO L226 Difference]: Without dead ends: 147 [2024-09-12 19:14:21,139 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:21,148 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 93 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:21,150 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 130 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:14:21,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-09-12 19:14:21,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 134. [2024-09-12 19:14:21,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 84 states have (on average 1.4880952380952381) internal successors, (125), 109 states have internal predecessors, (125), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:14:21,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 161 transitions. [2024-09-12 19:14:21,200 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 161 transitions. Word has length 45 [2024-09-12 19:14:21,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:21,200 INFO L474 AbstractCegarLoop]: Abstraction has 134 states and 161 transitions. [2024-09-12 19:14:21,201 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:21,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:21,201 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 161 transitions. [2024-09-12 19:14:21,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:14:21,204 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:21,204 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:21,205 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 19:14:21,205 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:21,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:21,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2076389445, now seen corresponding path program 1 times [2024-09-12 19:14:21,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:21,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893158016] [2024-09-12 19:14:21,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:21,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:21,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1319955409] [2024-09-12 19:14:21,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:21,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:21,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:21,231 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:21,232 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:14:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:14:21,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:14:21,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:14:21,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893158016] [2024-09-12 19:14:21,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319955409] [2024-09-12 19:14:21,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319955409] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:21,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:21,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:14:21,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267263495] [2024-09-12 19:14:21,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:21,376 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:14:21,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:21,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:14:21,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:21,380 INFO L87 Difference]: Start difference. First operand 134 states and 161 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:21,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:21,456 INFO L93 Difference]: Finished difference Result 148 states and 172 transitions. [2024-09-12 19:14:21,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:14:21,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2024-09-12 19:14:21,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:21,458 INFO L225 Difference]: With dead ends: 148 [2024-09-12 19:14:21,461 INFO L226 Difference]: Without dead ends: 146 [2024-09-12 19:14:21,461 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:21,462 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 33 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:21,462 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 115 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:14:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-09-12 19:14:21,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 136. [2024-09-12 19:14:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 111 states have internal predecessors, (126), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:14:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2024-09-12 19:14:21,495 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 46 [2024-09-12 19:14:21,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:21,495 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2024-09-12 19:14:21,496 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:21,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:21,496 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2024-09-12 19:14:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 19:14:21,497 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:21,497 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:21,510 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:21,701 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 19:14:21,702 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:21,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:21,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1966610323, now seen corresponding path program 1 times [2024-09-12 19:14:21,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:21,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068636605] [2024-09-12 19:14:21,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:21,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:21,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [943547354] [2024-09-12 19:14:21,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:21,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:21,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:21,716 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:21,717 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:14:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:14:21,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:21,874 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:14:21,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:14:21,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:21,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068636605] [2024-09-12 19:14:21,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:21,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943547354] [2024-09-12 19:14:21,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943547354] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:21,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:21,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:14:21,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127013282] [2024-09-12 19:14:21,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:21,877 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:21,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:21,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:21,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:21,877 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:22,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:22,031 INFO L93 Difference]: Finished difference Result 153 states and 174 transitions. [2024-09-12 19:14:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:22,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2024-09-12 19:14:22,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:22,033 INFO L225 Difference]: With dead ends: 153 [2024-09-12 19:14:22,033 INFO L226 Difference]: Without dead ends: 150 [2024-09-12 19:14:22,033 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:22,033 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 35 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:22,034 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 235 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:22,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-09-12 19:14:22,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 141. [2024-09-12 19:14:22,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 89 states have (on average 1.4382022471910112) internal successors, (128), 115 states have internal predecessors, (128), 20 states have call successors, (20), 8 states have call predecessors, (20), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 19:14:22,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 166 transitions. [2024-09-12 19:14:22,062 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 166 transitions. Word has length 50 [2024-09-12 19:14:22,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:22,063 INFO L474 AbstractCegarLoop]: Abstraction has 141 states and 166 transitions. [2024-09-12 19:14:22,063 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:22,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:22,063 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 166 transitions. [2024-09-12 19:14:22,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 19:14:22,064 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:22,064 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:22,076 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:14:22,264 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:22,265 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:22,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:22,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1072179619, now seen corresponding path program 1 times [2024-09-12 19:14:22,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:22,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207924098] [2024-09-12 19:14:22,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:22,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:22,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079683539] [2024-09-12 19:14:22,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:22,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:22,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:22,277 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:22,278 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:14:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:14:22,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:22,400 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-12 19:14:22,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:22,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:22,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207924098] [2024-09-12 19:14:22,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:22,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079683539] [2024-09-12 19:14:22,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079683539] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:22,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:22,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:14:22,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883284117] [2024-09-12 19:14:22,496 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:22,496 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:14:22,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:22,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:14:22,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:14:22,497 INFO L87 Difference]: Start difference. First operand 141 states and 166 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:14:22,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:22,651 INFO L93 Difference]: Finished difference Result 167 states and 196 transitions. [2024-09-12 19:14:22,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:14:22,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 57 [2024-09-12 19:14:22,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:22,654 INFO L225 Difference]: With dead ends: 167 [2024-09-12 19:14:22,654 INFO L226 Difference]: Without dead ends: 147 [2024-09-12 19:14:22,654 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:14:22,655 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 60 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:22,655 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 271 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:22,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-09-12 19:14:22,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-09-12 19:14:22,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 119 states have internal predecessors, (131), 22 states have call successors, (22), 8 states have call predecessors, (22), 7 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 19:14:22,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 173 transitions. [2024-09-12 19:14:22,688 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 173 transitions. Word has length 57 [2024-09-12 19:14:22,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:22,688 INFO L474 AbstractCegarLoop]: Abstraction has 147 states and 173 transitions. [2024-09-12 19:14:22,688 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:14:22,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:22,689 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 173 transitions. [2024-09-12 19:14:22,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:14:22,689 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:22,689 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 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] [2024-09-12 19:14:22,702 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:22,890 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:22,891 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:22,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:22,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1122170242, now seen corresponding path program 1 times [2024-09-12 19:14:22,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:22,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584122544] [2024-09-12 19:14:22,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:22,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:22,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1622670002] [2024-09-12 19:14:22,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:22,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:22,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:22,915 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:22,917 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:14:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:14:22,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:23,036 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-12 19:14:23,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:23,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:23,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584122544] [2024-09-12 19:14:23,121 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:23,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622670002] [2024-09-12 19:14:23,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622670002] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:23,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:23,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:14:23,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930577123] [2024-09-12 19:14:23,122 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:23,122 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:14:23,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:23,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:14:23,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:14:23,123 INFO L87 Difference]: Start difference. First operand 147 states and 173 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:14:23,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:23,309 INFO L93 Difference]: Finished difference Result 222 states and 276 transitions. [2024-09-12 19:14:23,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:14:23,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 58 [2024-09-12 19:14:23,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:23,312 INFO L225 Difference]: With dead ends: 222 [2024-09-12 19:14:23,312 INFO L226 Difference]: Without dead ends: 218 [2024-09-12 19:14:23,312 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:14:23,312 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 147 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:23,313 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 229 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:23,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-09-12 19:14:23,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2024-09-12 19:14:23,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 147 states have (on average 1.3741496598639455) internal successors, (202), 169 states have internal predecessors, (202), 31 states have call successors, (31), 8 states have call predecessors, (31), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 19:14:23,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 262 transitions. [2024-09-12 19:14:23,356 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 262 transitions. Word has length 58 [2024-09-12 19:14:23,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:23,357 INFO L474 AbstractCegarLoop]: Abstraction has 206 states and 262 transitions. [2024-09-12 19:14:23,357 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:14:23,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:23,357 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 262 transitions. [2024-09-12 19:14:23,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 19:14:23,358 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:23,358 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:23,372 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:14:23,558 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 19:14:23,559 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:23,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:23,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2049450388, now seen corresponding path program 1 times [2024-09-12 19:14:23,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:23,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504720000] [2024-09-12 19:14:23,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:23,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:23,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [233107545] [2024-09-12 19:14:23,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:23,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:23,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:23,571 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:23,572 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:14:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:23,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:14:23,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 19:14:23,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-09-12 19:14:23,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:23,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504720000] [2024-09-12 19:14:23,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:23,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233107545] [2024-09-12 19:14:23,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233107545] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:23,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:23,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:14:23,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453122561] [2024-09-12 19:14:23,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:23,822 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:14:23,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:23,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:14:23,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:14:23,822 INFO L87 Difference]: Start difference. First operand 206 states and 262 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:24,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:24,208 INFO L93 Difference]: Finished difference Result 216 states and 275 transitions. [2024-09-12 19:14:24,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:14:24,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-09-12 19:14:24,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:24,210 INFO L225 Difference]: With dead ends: 216 [2024-09-12 19:14:24,210 INFO L226 Difference]: Without dead ends: 214 [2024-09-12 19:14:24,211 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:14:24,214 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 13 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:24,215 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 222 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:14:24,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-09-12 19:14:24,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 210. [2024-09-12 19:14:24,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 150 states have (on average 1.3666666666666667) internal successors, (205), 172 states have internal predecessors, (205), 31 states have call successors, (31), 9 states have call predecessors, (31), 8 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 19:14:24,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 265 transitions. [2024-09-12 19:14:24,284 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 265 transitions. Word has length 62 [2024-09-12 19:14:24,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:24,285 INFO L474 AbstractCegarLoop]: Abstraction has 210 states and 265 transitions. [2024-09-12 19:14:24,285 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:24,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:24,285 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 265 transitions. [2024-09-12 19:14:24,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 19:14:24,286 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:24,286 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:24,297 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:14:24,490 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:24,490 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:24,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:24,491 INFO L85 PathProgramCache]: Analyzing trace with hash 2083474338, now seen corresponding path program 1 times [2024-09-12 19:14:24,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:24,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314446155] [2024-09-12 19:14:24,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:24,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-09-12 19:14:24,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:24,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314446155] [2024-09-12 19:14:24,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314446155] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:24,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:24,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:14:24,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388144671] [2024-09-12 19:14:24,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:24,626 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:14:24,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:24,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:14:24,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:24,626 INFO L87 Difference]: Start difference. First operand 210 states and 265 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:24,725 INFO L93 Difference]: Finished difference Result 210 states and 265 transitions. [2024-09-12 19:14:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:14:24,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-09-12 19:14:24,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:24,728 INFO L225 Difference]: With dead ends: 210 [2024-09-12 19:14:24,728 INFO L226 Difference]: Without dead ends: 208 [2024-09-12 19:14:24,728 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:24,728 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 33 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:24,728 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 86 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:24,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-09-12 19:14:24,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-09-12 19:14:24,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 170 states have internal predecessors, (199), 31 states have call successors, (31), 9 states have call predecessors, (31), 8 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 19:14:24,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 259 transitions. [2024-09-12 19:14:24,766 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 259 transitions. Word has length 65 [2024-09-12 19:14:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:24,766 INFO L474 AbstractCegarLoop]: Abstraction has 208 states and 259 transitions. [2024-09-12 19:14:24,766 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:24,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:24,767 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 259 transitions. [2024-09-12 19:14:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 19:14:24,767 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:24,767 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:24,767 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 19:14:24,768 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:24,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:24,768 INFO L85 PathProgramCache]: Analyzing trace with hash 163195111, now seen corresponding path program 1 times [2024-09-12 19:14:24,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:24,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964784165] [2024-09-12 19:14:24,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:24,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:14:24,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:24,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964784165] [2024-09-12 19:14:24,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964784165] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:24,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421887694] [2024-09-12 19:14:24,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:24,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:24,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:24,823 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:24,824 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:14:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:14:24,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:14:24,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:14:24,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421887694] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:24,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:14:24,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-12 19:14:24,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334948381] [2024-09-12 19:14:24,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:24,961 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:14:24,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:24,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:14:24,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:24,961 INFO L87 Difference]: Start difference. First operand 208 states and 259 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 19:14:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:25,129 INFO L93 Difference]: Finished difference Result 332 states and 420 transitions. [2024-09-12 19:14:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:14:25,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 66 [2024-09-12 19:14:25,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:25,131 INFO L225 Difference]: With dead ends: 332 [2024-09-12 19:14:25,131 INFO L226 Difference]: Without dead ends: 330 [2024-09-12 19:14:25,131 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:25,132 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 219 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:25,132 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 179 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-09-12 19:14:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 276. [2024-09-12 19:14:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 206 states have (on average 1.3398058252427185) internal successors, (276), 226 states have internal predecessors, (276), 43 states have call successors, (43), 9 states have call predecessors, (43), 8 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-09-12 19:14:25,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 360 transitions. [2024-09-12 19:14:25,202 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 360 transitions. Word has length 66 [2024-09-12 19:14:25,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:25,202 INFO L474 AbstractCegarLoop]: Abstraction has 276 states and 360 transitions. [2024-09-12 19:14:25,203 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 19:14:25,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:25,203 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 360 transitions. [2024-09-12 19:14:25,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 19:14:25,203 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:25,204 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:25,215 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 19:14:25,407 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:25,408 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:25,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash 790232330, now seen corresponding path program 1 times [2024-09-12 19:14:25,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:25,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346580887] [2024-09-12 19:14:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:25,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 19:14:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:14:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:14:25,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:25,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346580887] [2024-09-12 19:14:25,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346580887] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:25,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:25,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:14:25,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104964580] [2024-09-12 19:14:25,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:25,503 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:25,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:25,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:25,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:25,504 INFO L87 Difference]: Start difference. First operand 276 states and 360 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 19:14:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:25,693 INFO L93 Difference]: Finished difference Result 288 states and 372 transitions. [2024-09-12 19:14:25,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:25,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2024-09-12 19:14:25,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:25,695 INFO L225 Difference]: With dead ends: 288 [2024-09-12 19:14:25,695 INFO L226 Difference]: Without dead ends: 266 [2024-09-12 19:14:25,695 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:25,696 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 5 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:25,696 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 237 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:25,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-09-12 19:14:25,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2024-09-12 19:14:25,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 198 states have (on average 1.3484848484848484) internal successors, (267), 218 states have internal predecessors, (267), 41 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 19:14:25,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 347 transitions. [2024-09-12 19:14:25,758 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 347 transitions. Word has length 72 [2024-09-12 19:14:25,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:25,758 INFO L474 AbstractCegarLoop]: Abstraction has 266 states and 347 transitions. [2024-09-12 19:14:25,758 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 19:14:25,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:25,758 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 347 transitions. [2024-09-12 19:14:25,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:14:25,759 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:25,759 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:25,759 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 19:14:25,759 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:25,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:25,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1369927350, now seen corresponding path program 2 times [2024-09-12 19:14:25,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:25,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825724568] [2024-09-12 19:14:25,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:25,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:25,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822156986] [2024-09-12 19:14:25,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:14:25,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:25,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:25,771 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:25,772 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:14:25,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:14:25,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:14:25,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:14:25,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:25,980 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 19:14:25,981 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:26,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:26,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825724568] [2024-09-12 19:14:26,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:26,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822156986] [2024-09-12 19:14:26,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822156986] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:26,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:26,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 19:14:26,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884964141] [2024-09-12 19:14:26,093 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:26,093 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:14:26,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:26,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:14:26,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:14:26,094 INFO L87 Difference]: Start difference. First operand 266 states and 347 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 19:14:26,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:26,595 INFO L93 Difference]: Finished difference Result 326 states and 427 transitions. [2024-09-12 19:14:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:14:26,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 81 [2024-09-12 19:14:26,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:26,597 INFO L225 Difference]: With dead ends: 326 [2024-09-12 19:14:26,597 INFO L226 Difference]: Without dead ends: 322 [2024-09-12 19:14:26,597 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:14:26,597 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 136 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:26,598 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 496 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:14:26,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-09-12 19:14:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 266. [2024-09-12 19:14:26,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 198 states have (on average 1.3383838383838385) internal successors, (265), 218 states have internal predecessors, (265), 41 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 19:14:26,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 345 transitions. [2024-09-12 19:14:26,662 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 345 transitions. Word has length 81 [2024-09-12 19:14:26,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:26,662 INFO L474 AbstractCegarLoop]: Abstraction has 266 states and 345 transitions. [2024-09-12 19:14:26,662 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 19:14:26,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:26,662 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 345 transitions. [2024-09-12 19:14:26,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 19:14:26,663 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:26,663 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:26,675 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:14:26,864 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:14:26,864 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:26,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:26,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2040572342, now seen corresponding path program 1 times [2024-09-12 19:14:26,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:26,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961041354] [2024-09-12 19:14:26,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:26,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:14:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:14:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,909 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-09-12 19:14:26,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:26,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961041354] [2024-09-12 19:14:26,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961041354] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:26,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:26,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:14:26,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846373302] [2024-09-12 19:14:26,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:26,910 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:14:26,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:26,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:14:26,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:26,910 INFO L87 Difference]: Start difference. First operand 266 states and 345 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-09-12 19:14:27,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:27,024 INFO L93 Difference]: Finished difference Result 266 states and 345 transitions. [2024-09-12 19:14:27,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:14:27,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 88 [2024-09-12 19:14:27,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:27,026 INFO L225 Difference]: With dead ends: 266 [2024-09-12 19:14:27,026 INFO L226 Difference]: Without dead ends: 265 [2024-09-12 19:14:27,026 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:27,026 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 2 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:27,027 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 131 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:27,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-09-12 19:14:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2024-09-12 19:14:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 198 states have (on average 1.3232323232323233) internal successors, (262), 217 states have internal predecessors, (262), 41 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 19:14:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 342 transitions. [2024-09-12 19:14:27,096 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 342 transitions. Word has length 88 [2024-09-12 19:14:27,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:27,097 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 342 transitions. [2024-09-12 19:14:27,097 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-09-12 19:14:27,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:27,097 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 342 transitions. [2024-09-12 19:14:27,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 19:14:27,098 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:27,098 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:27,098 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 19:14:27,098 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:27,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:27,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1166766716, now seen corresponding path program 1 times [2024-09-12 19:14:27,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:27,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560581101] [2024-09-12 19:14:27,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:27,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:14:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:14:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-09-12 19:14:27,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:27,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560581101] [2024-09-12 19:14:27,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560581101] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:27,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:27,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:14:27,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363370253] [2024-09-12 19:14:27,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:27,227 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:27,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:27,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:27,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:27,228 INFO L87 Difference]: Start difference. First operand 265 states and 342 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 19:14:27,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:27,500 INFO L93 Difference]: Finished difference Result 432 states and 589 transitions. [2024-09-12 19:14:27,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:14:27,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 89 [2024-09-12 19:14:27,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:27,503 INFO L225 Difference]: With dead ends: 432 [2024-09-12 19:14:27,503 INFO L226 Difference]: Without dead ends: 431 [2024-09-12 19:14:27,503 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:14:27,504 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 97 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:27,504 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 246 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:14:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-09-12 19:14:27,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 367. [2024-09-12 19:14:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 288 states have (on average 1.3923611111111112) internal successors, (401), 307 states have internal predecessors, (401), 53 states have call successors, (53), 9 states have call predecessors, (53), 8 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 19:14:27,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 505 transitions. [2024-09-12 19:14:27,573 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 505 transitions. Word has length 89 [2024-09-12 19:14:27,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:27,573 INFO L474 AbstractCegarLoop]: Abstraction has 367 states and 505 transitions. [2024-09-12 19:14:27,573 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 19:14:27,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:27,573 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 505 transitions. [2024-09-12 19:14:27,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-09-12 19:14:27,574 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:27,574 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:27,574 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 19:14:27,574 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:27,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:27,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1810029704, now seen corresponding path program 1 times [2024-09-12 19:14:27,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:27,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901522656] [2024-09-12 19:14:27,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:27,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:14:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:14:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,740 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:27,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:27,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901522656] [2024-09-12 19:14:27,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901522656] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:27,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166100952] [2024-09-12 19:14:27,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:27,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:27,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:27,742 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:27,743 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:14:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:27,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:14:27,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:27,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:14:27,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166100952] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:27,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:27,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-09-12 19:14:27,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117172349] [2024-09-12 19:14:27,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:27,907 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:14:27,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:27,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:14:27,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:14:27,907 INFO L87 Difference]: Start difference. First operand 367 states and 505 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:14:28,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:28,089 INFO L93 Difference]: Finished difference Result 367 states and 505 transitions. [2024-09-12 19:14:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:14:28,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 90 [2024-09-12 19:14:28,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:28,091 INFO L225 Difference]: With dead ends: 367 [2024-09-12 19:14:28,091 INFO L226 Difference]: Without dead ends: 365 [2024-09-12 19:14:28,092 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:14:28,092 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 19 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:28,092 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 105 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-09-12 19:14:28,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-09-12 19:14:28,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 288 states have (on average 1.3298611111111112) internal successors, (383), 305 states have internal predecessors, (383), 53 states have call successors, (53), 9 states have call predecessors, (53), 8 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 19:14:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 487 transitions. [2024-09-12 19:14:28,168 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 487 transitions. Word has length 90 [2024-09-12 19:14:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:28,168 INFO L474 AbstractCegarLoop]: Abstraction has 365 states and 487 transitions. [2024-09-12 19:14:28,168 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:14:28,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:28,169 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 487 transitions. [2024-09-12 19:14:28,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 19:14:28,170 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:28,170 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:28,186 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:28,370 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:14:28,371 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:28,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:28,371 INFO L85 PathProgramCache]: Analyzing trace with hash -276345850, now seen corresponding path program 1 times [2024-09-12 19:14:28,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:28,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340158754] [2024-09-12 19:14:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:28,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:14:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:14:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,499 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:28,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:28,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340158754] [2024-09-12 19:14:28,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340158754] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:28,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107961897] [2024-09-12 19:14:28,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:28,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:28,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:28,501 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:28,505 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:14:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:14:28,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:28,655 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:28,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:28,939 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:28,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107961897] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:28,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:14:28,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2024-09-12 19:14:28,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635134353] [2024-09-12 19:14:28,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:28,940 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:14:28,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:28,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:14:28,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:14:28,941 INFO L87 Difference]: Start difference. First operand 365 states and 487 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 10 states have internal predecessors, (99), 7 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-09-12 19:14:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:29,375 INFO L93 Difference]: Finished difference Result 578 states and 757 transitions. [2024-09-12 19:14:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:14:29,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 10 states have internal predecessors, (99), 7 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 91 [2024-09-12 19:14:29,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:29,378 INFO L225 Difference]: With dead ends: 578 [2024-09-12 19:14:29,378 INFO L226 Difference]: Without dead ends: 476 [2024-09-12 19:14:29,378 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:14:29,379 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 55 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:29,379 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 411 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:14:29,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-09-12 19:14:29,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 431. [2024-09-12 19:14:29,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 348 states have (on average 1.3017241379310345) internal successors, (453), 365 states have internal predecessors, (453), 59 states have call successors, (59), 9 states have call predecessors, (59), 8 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 19:14:29,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 569 transitions. [2024-09-12 19:14:29,489 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 569 transitions. Word has length 91 [2024-09-12 19:14:29,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:29,490 INFO L474 AbstractCegarLoop]: Abstraction has 431 states and 569 transitions. [2024-09-12 19:14:29,490 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 10 states have internal predecessors, (99), 7 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-09-12 19:14:29,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:29,491 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 569 transitions. [2024-09-12 19:14:29,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 19:14:29,492 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:29,492 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:29,506 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:29,692 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:29,692 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:29,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:29,693 INFO L85 PathProgramCache]: Analyzing trace with hash 833176532, now seen corresponding path program 1 times [2024-09-12 19:14:29,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:29,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9369166] [2024-09-12 19:14:29,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:29,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:29,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792209789] [2024-09-12 19:14:29,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:29,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:29,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:29,720 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:29,723 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:14:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 19:14:29,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:30,213 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 19:14:30,213 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:30,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:30,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9369166] [2024-09-12 19:14:30,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:30,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792209789] [2024-09-12 19:14:30,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792209789] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:30,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:30,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 19:14:30,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540652079] [2024-09-12 19:14:30,475 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:30,475 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:14:30,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:30,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:14:30,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:14:30,476 INFO L87 Difference]: Start difference. First operand 431 states and 569 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 19:14:30,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:30,920 INFO L93 Difference]: Finished difference Result 463 states and 612 transitions. [2024-09-12 19:14:30,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:14:30,922 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 94 [2024-09-12 19:14:30,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:30,925 INFO L225 Difference]: With dead ends: 463 [2024-09-12 19:14:30,925 INFO L226 Difference]: Without dead ends: 462 [2024-09-12 19:14:30,925 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:14:30,925 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:30,926 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 352 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:14:30,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-09-12 19:14:31,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 446. [2024-09-12 19:14:31,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 361 states have (on average 1.296398891966759) internal successors, (468), 378 states have internal predecessors, (468), 61 states have call successors, (61), 9 states have call predecessors, (61), 8 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 19:14:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 588 transitions. [2024-09-12 19:14:31,018 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 588 transitions. Word has length 94 [2024-09-12 19:14:31,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:31,018 INFO L474 AbstractCegarLoop]: Abstraction has 446 states and 588 transitions. [2024-09-12 19:14:31,018 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 19:14:31,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:31,019 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 588 transitions. [2024-09-12 19:14:31,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 19:14:31,019 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:31,019 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:31,033 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:14:31,220 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-09-12 19:14:31,220 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:31,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:31,220 INFO L85 PathProgramCache]: Analyzing trace with hash 58668810, now seen corresponding path program 1 times [2024-09-12 19:14:31,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:31,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855310973] [2024-09-12 19:14:31,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:31,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:14:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:14:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-09-12 19:14:31,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:31,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855310973] [2024-09-12 19:14:31,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855310973] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:31,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:31,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:14:31,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790067449] [2024-09-12 19:14:31,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:31,321 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:31,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:31,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:31,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:31,322 INFO L87 Difference]: Start difference. First operand 446 states and 588 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-09-12 19:14:31,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:31,642 INFO L93 Difference]: Finished difference Result 446 states and 588 transitions. [2024-09-12 19:14:31,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:31,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 95 [2024-09-12 19:14:31,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:31,644 INFO L225 Difference]: With dead ends: 446 [2024-09-12 19:14:31,644 INFO L226 Difference]: Without dead ends: 445 [2024-09-12 19:14:31,644 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:14:31,645 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 71 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:31,645 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 137 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:14:31,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-09-12 19:14:31,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 433. [2024-09-12 19:14:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 349 states have (on average 1.2779369627507164) internal successors, (446), 365 states have internal predecessors, (446), 61 states have call successors, (61), 9 states have call predecessors, (61), 8 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 19:14:31,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 566 transitions. [2024-09-12 19:14:31,744 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 566 transitions. Word has length 95 [2024-09-12 19:14:31,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:31,744 INFO L474 AbstractCegarLoop]: Abstraction has 433 states and 566 transitions. [2024-09-12 19:14:31,744 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-09-12 19:14:31,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 566 transitions. [2024-09-12 19:14:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 19:14:31,745 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:31,745 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:31,745 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 19:14:31,745 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:31,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:31,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1818733206, now seen corresponding path program 1 times [2024-09-12 19:14:31,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:31,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940461351] [2024-09-12 19:14:31,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:31,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:31,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761999767] [2024-09-12 19:14:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:31,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:31,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:31,760 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:31,761 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:14:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:31,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 19:14:31,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:32,358 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 19:14:32,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:33,886 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:33,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:33,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940461351] [2024-09-12 19:14:33,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:33,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761999767] [2024-09-12 19:14:33,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761999767] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:33,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:14:33,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-09-12 19:14:33,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027383393] [2024-09-12 19:14:33,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:33,888 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 19:14:33,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:33,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 19:14:33,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:14:33,888 INFO L87 Difference]: Start difference. First operand 433 states and 566 transitions. Second operand has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-09-12 19:14:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:38,023 INFO L93 Difference]: Finished difference Result 520 states and 680 transitions. [2024-09-12 19:14:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 19:14:38,023 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) Word has length 96 [2024-09-12 19:14:38,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:38,026 INFO L225 Difference]: With dead ends: 520 [2024-09-12 19:14:38,026 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 19:14:38,026 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 19:14:38,027 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 357 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:38,027 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 347 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-09-12 19:14:38,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 19:14:38,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 447. [2024-09-12 19:14:38,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 365 states have (on average 1.263013698630137) internal successors, (461), 381 states have internal predecessors, (461), 59 states have call successors, (59), 9 states have call predecessors, (59), 8 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 19:14:38,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 577 transitions. [2024-09-12 19:14:38,223 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 577 transitions. Word has length 96 [2024-09-12 19:14:38,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:38,223 INFO L474 AbstractCegarLoop]: Abstraction has 447 states and 577 transitions. [2024-09-12 19:14:38,223 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-09-12 19:14:38,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:38,223 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 577 transitions. [2024-09-12 19:14:38,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 19:14:38,224 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:38,224 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:38,239 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:38,428 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 19:14:38,429 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:38,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:38,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1158992446, now seen corresponding path program 1 times [2024-09-12 19:14:38,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:38,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94638937] [2024-09-12 19:14:38,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:38,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:38,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323382787] [2024-09-12 19:14:38,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:38,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:38,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:38,446 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:38,448 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:14:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:38,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 19:14:38,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 19:14:39,127 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:41,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:41,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94638937] [2024-09-12 19:14:41,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:41,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323382787] [2024-09-12 19:14:41,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323382787] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:41,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:14:41,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 27 [2024-09-12 19:14:41,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20152862] [2024-09-12 19:14:41,110 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:41,111 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 19:14:41,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:41,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 19:14:41,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:14:41,112 INFO L87 Difference]: Start difference. First operand 447 states and 577 transitions. Second operand has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 24 states have internal predecessors, (87), 9 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2024-09-12 19:14:43,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:43,710 INFO L93 Difference]: Finished difference Result 560 states and 719 transitions. [2024-09-12 19:14:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 19:14:43,711 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 24 states have internal predecessors, (87), 9 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) Word has length 100 [2024-09-12 19:14:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:43,713 INFO L225 Difference]: With dead ends: 560 [2024-09-12 19:14:43,713 INFO L226 Difference]: Without dead ends: 558 [2024-09-12 19:14:43,713 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=296, Invalid=1596, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 19:14:43,714 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 227 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:43,714 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 462 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-09-12 19:14:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-09-12 19:14:43,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 506. [2024-09-12 19:14:43,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 413 states have (on average 1.2469733656174333) internal successors, (515), 430 states have internal predecessors, (515), 65 states have call successors, (65), 14 states have call predecessors, (65), 13 states have return successors, (63), 61 states have call predecessors, (63), 63 states have call successors, (63) [2024-09-12 19:14:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 643 transitions. [2024-09-12 19:14:43,904 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 643 transitions. Word has length 100 [2024-09-12 19:14:43,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:43,904 INFO L474 AbstractCegarLoop]: Abstraction has 506 states and 643 transitions. [2024-09-12 19:14:43,904 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 24 states have internal predecessors, (87), 9 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2024-09-12 19:14:43,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:43,905 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 643 transitions. [2024-09-12 19:14:43,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 19:14:43,905 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:43,905 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:43,917 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:44,109 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 19:14:44,110 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:44,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:44,110 INFO L85 PathProgramCache]: Analyzing trace with hash -751052030, now seen corresponding path program 3 times [2024-09-12 19:14:44,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:44,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160164712] [2024-09-12 19:14:44,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:44,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:44,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387706945] [2024-09-12 19:14:44,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:14:44,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:44,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:44,125 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:44,126 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:14:44,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:14:44,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:14:44,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:14:44,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:44,942 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-09-12 19:14:44,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-09-12 19:14:50,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:50,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160164712] [2024-09-12 19:14:50,266 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:50,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387706945] [2024-09-12 19:14:50,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387706945] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:50,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:14:50,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-09-12 19:14:50,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617340596] [2024-09-12 19:14:50,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:50,267 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:14:50,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:50,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:14:50,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=64, Unknown=3, NotChecked=0, Total=90 [2024-09-12 19:14:50,268 INFO L87 Difference]: Start difference. First operand 506 states and 643 transitions. Second operand has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 19:14:53,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:14:56,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:14:59,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:15:00,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:15:01,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:15:03,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:15:03,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:03,208 INFO L93 Difference]: Finished difference Result 514 states and 653 transitions. [2024-09-12 19:15:03,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:15:03,209 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2024-09-12 19:15:03,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:03,212 INFO L225 Difference]: With dead ends: 514 [2024-09-12 19:15:03,212 INFO L226 Difference]: Without dead ends: 511 [2024-09-12 19:15:03,212 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=49, Invalid=130, Unknown=3, NotChecked=0, Total=182 [2024-09-12 19:15:03,213 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 101 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 40 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:03,214 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 231 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 317 Invalid, 6 Unknown, 0 Unchecked, 12.7s Time] [2024-09-12 19:15:03,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-09-12 19:15:03,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 430. [2024-09-12 19:15:03,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 348 states have (on average 1.1867816091954022) internal successors, (413), 362 states have internal predecessors, (413), 57 states have call successors, (57), 14 states have call predecessors, (57), 13 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 19:15:03,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 525 transitions. [2024-09-12 19:15:03,403 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 525 transitions. Word has length 104 [2024-09-12 19:15:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:03,403 INFO L474 AbstractCegarLoop]: Abstraction has 430 states and 525 transitions. [2024-09-12 19:15:03,403 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 19:15:03,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:03,403 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 525 transitions. [2024-09-12 19:15:03,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 19:15:03,407 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:03,407 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:03,426 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:03,608 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 19:15:03,608 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:03,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:03,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1862601784, now seen corresponding path program 2 times [2024-09-12 19:15:03,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:03,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855892729] [2024-09-12 19:15:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:03,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:03,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759165431] [2024-09-12 19:15:03,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:15:03,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:03,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:03,636 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:03,636 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:15:03,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:15:03,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:03,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 19:15:03,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:04,087 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 29 proven. 29 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-09-12 19:15:04,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 29 proven. 29 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-09-12 19:15:05,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:05,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855892729] [2024-09-12 19:15:05,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:05,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759165431] [2024-09-12 19:15:05,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759165431] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:05,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:15:05,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 24 [2024-09-12 19:15:05,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667057580] [2024-09-12 19:15:05,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:05,610 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:15:05,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:05,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:15:05,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:15:05,611 INFO L87 Difference]: Start difference. First operand 430 states and 525 transitions. Second operand has 24 states, 24 states have (on average 3.875) internal successors, (93), 23 states have internal predecessors, (93), 11 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2024-09-12 19:15:07,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:07,730 INFO L93 Difference]: Finished difference Result 560 states and 681 transitions. [2024-09-12 19:15:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:15:07,730 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 23 states have internal predecessors, (93), 11 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) Word has length 107 [2024-09-12 19:15:07,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:07,736 INFO L225 Difference]: With dead ends: 560 [2024-09-12 19:15:07,740 INFO L226 Difference]: Without dead ends: 445 [2024-09-12 19:15:07,741 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=196, Invalid=926, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:15:07,741 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 67 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:07,741 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 530 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 19:15:07,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-09-12 19:15:07,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 436. [2024-09-12 19:15:07,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 349 states have (on average 1.180515759312321) internal successors, (412), 365 states have internal predecessors, (412), 59 states have call successors, (59), 17 states have call predecessors, (59), 16 states have return successors, (57), 53 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 19:15:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 528 transitions. [2024-09-12 19:15:07,977 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 528 transitions. Word has length 107 [2024-09-12 19:15:07,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:07,978 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 528 transitions. [2024-09-12 19:15:07,979 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 23 states have internal predecessors, (93), 11 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2024-09-12 19:15:07,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:07,979 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 528 transitions. [2024-09-12 19:15:07,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 19:15:07,980 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:07,980 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:07,996 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:08,181 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 19:15:08,181 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:08,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:08,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2092158453, now seen corresponding path program 1 times [2024-09-12 19:15:08,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:08,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17287194] [2024-09-12 19:15:08,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:08,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:08,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [242222140] [2024-09-12 19:15:08,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:08,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:08,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:08,203 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:08,205 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:15:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:08,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:15:08,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-09-12 19:15:08,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:08,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:08,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17287194] [2024-09-12 19:15:08,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:08,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242222140] [2024-09-12 19:15:08,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242222140] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:08,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:08,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:15:08,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138519975] [2024-09-12 19:15:08,905 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:08,905 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:15:08,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:08,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:15:08,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:15:08,906 INFO L87 Difference]: Start difference. First operand 436 states and 528 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 19:15:09,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:09,310 INFO L93 Difference]: Finished difference Result 443 states and 539 transitions. [2024-09-12 19:15:09,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:15:09,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 110 [2024-09-12 19:15:09,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:09,312 INFO L225 Difference]: With dead ends: 443 [2024-09-12 19:15:09,313 INFO L226 Difference]: Without dead ends: 442 [2024-09-12 19:15:09,313 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:15:09,313 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 26 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:09,313 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 287 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:15:09,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-09-12 19:15:09,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 437. [2024-09-12 19:15:09,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 350 states have (on average 1.18) internal successors, (413), 366 states have internal predecessors, (413), 59 states have call successors, (59), 17 states have call predecessors, (59), 16 states have return successors, (57), 53 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 19:15:09,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 529 transitions. [2024-09-12 19:15:09,506 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 529 transitions. Word has length 110 [2024-09-12 19:15:09,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:09,507 INFO L474 AbstractCegarLoop]: Abstraction has 437 states and 529 transitions. [2024-09-12 19:15:09,507 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 19:15:09,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:09,507 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 529 transitions. [2024-09-12 19:15:09,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 19:15:09,507 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:09,508 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:09,519 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 19:15:09,708 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 19:15:09,708 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:09,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash 432402739, now seen corresponding path program 1 times [2024-09-12 19:15:09,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:09,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132550960] [2024-09-12 19:15:09,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:09,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:09,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [705444794] [2024-09-12 19:15:09,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:09,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:09,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:09,724 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:09,725 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:15:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:09,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 19:15:09,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-09-12 19:15:10,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:11,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:11,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132550960] [2024-09-12 19:15:11,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:11,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705444794] [2024-09-12 19:15:11,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705444794] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:11,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:11,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 19:15:11,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146538583] [2024-09-12 19:15:11,028 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:11,028 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 19:15:11,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:11,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 19:15:11,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:15:11,029 INFO L87 Difference]: Start difference. First operand 437 states and 529 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 19:15:11,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:11,608 INFO L93 Difference]: Finished difference Result 592 states and 727 transitions. [2024-09-12 19:15:11,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:15:11,609 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 111 [2024-09-12 19:15:11,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:11,610 INFO L225 Difference]: With dead ends: 592 [2024-09-12 19:15:11,611 INFO L226 Difference]: Without dead ends: 385 [2024-09-12 19:15:11,611 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:15:11,611 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 106 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:11,612 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 404 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:15:11,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-09-12 19:15:11,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 376. [2024-09-12 19:15:11,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 301 states have (on average 1.186046511627907) internal successors, (357), 312 states have internal predecessors, (357), 50 states have call successors, (50), 15 states have call predecessors, (50), 14 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 19:15:11,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 455 transitions. [2024-09-12 19:15:11,774 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 455 transitions. Word has length 111 [2024-09-12 19:15:11,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:11,774 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 455 transitions. [2024-09-12 19:15:11,775 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 19:15:11,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:11,775 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 455 transitions. [2024-09-12 19:15:11,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-09-12 19:15:11,776 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:11,776 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:11,788 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 19:15:11,979 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:15:11,979 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:11,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash 519583159, now seen corresponding path program 1 times [2024-09-12 19:15:11,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:11,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844752299] [2024-09-12 19:15:11,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:11,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:15:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:15:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:15:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:15:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:15:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:15:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:15:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:15:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:15:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:15:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:15:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:15:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 19:15:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:15:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-09-12 19:15:12,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:12,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844752299] [2024-09-12 19:15:12,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844752299] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:15:12,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:15:12,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:15:12,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567731789] [2024-09-12 19:15:12,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:15:12,093 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:15:12,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:12,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:15:12,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:15:12,094 INFO L87 Difference]: Start difference. First operand 376 states and 455 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 19:15:12,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:12,495 INFO L93 Difference]: Finished difference Result 376 states and 455 transitions. [2024-09-12 19:15:12,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:15:12,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-09-12 19:15:12,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:12,498 INFO L225 Difference]: With dead ends: 376 [2024-09-12 19:15:12,498 INFO L226 Difference]: Without dead ends: 375 [2024-09-12 19:15:12,498 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:15:12,498 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 42 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:12,499 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 166 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:15:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-09-12 19:15:12,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2024-09-12 19:15:12,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 301 states have (on average 1.1827242524916943) internal successors, (356), 311 states have internal predecessors, (356), 50 states have call successors, (50), 15 states have call predecessors, (50), 14 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 19:15:12,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 454 transitions. [2024-09-12 19:15:12,668 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 454 transitions. Word has length 112 [2024-09-12 19:15:12,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:12,668 INFO L474 AbstractCegarLoop]: Abstraction has 375 states and 454 transitions. [2024-09-12 19:15:12,668 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 19:15:12,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 454 transitions. [2024-09-12 19:15:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-09-12 19:15:12,670 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:12,670 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:12,670 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-09-12 19:15:12,670 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:12,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:12,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1939105271, now seen corresponding path program 1 times [2024-09-12 19:15:12,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:12,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968368824] [2024-09-12 19:15:12,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:12,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:15:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:15:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:15:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:15:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:15:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:15:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:15:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:15:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:15:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:15:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:15:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:15:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:15:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:15:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 19:15:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:15:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,761 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-09-12 19:15:12,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:12,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968368824] [2024-09-12 19:15:12,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968368824] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:12,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645996125] [2024-09-12 19:15:12,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:12,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:12,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:12,763 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:12,764 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:15:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:12,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:15:12,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:12,848 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-09-12 19:15:12,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:12,945 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-09-12 19:15:12,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645996125] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:12,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:15:12,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 19:15:12,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570333211] [2024-09-12 19:15:12,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:12,946 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:15:12,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:12,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:15:12,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:15:12,947 INFO L87 Difference]: Start difference. First operand 375 states and 454 transitions. Second operand has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 19:15:13,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:13,491 INFO L93 Difference]: Finished difference Result 746 states and 942 transitions. [2024-09-12 19:15:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:15:13,491 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 114 [2024-09-12 19:15:13,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:13,494 INFO L225 Difference]: With dead ends: 746 [2024-09-12 19:15:13,494 INFO L226 Difference]: Without dead ends: 744 [2024-09-12 19:15:13,494 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:15:13,495 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 272 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:13,495 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 304 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:15:13,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-09-12 19:15:13,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 452. [2024-09-12 19:15:13,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 362 states have (on average 1.171270718232044) internal successors, (424), 372 states have internal predecessors, (424), 66 states have call successors, (66), 15 states have call predecessors, (66), 14 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 19:15:13,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 554 transitions. [2024-09-12 19:15:13,719 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 554 transitions. Word has length 114 [2024-09-12 19:15:13,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:13,719 INFO L474 AbstractCegarLoop]: Abstraction has 452 states and 554 transitions. [2024-09-12 19:15:13,720 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 19:15:13,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:13,720 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 554 transitions. [2024-09-12 19:15:13,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-09-12 19:15:13,720 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:13,720 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:13,733 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:13,924 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:15:13,925 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:13,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1072791115, now seen corresponding path program 1 times [2024-09-12 19:15:13,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:13,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476397721] [2024-09-12 19:15:13,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:13,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:13,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465794593] [2024-09-12 19:15:13,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:13,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:13,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:13,944 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:13,951 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:15:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:13,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:15:13,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:14,154 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-09-12 19:15:14,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:14,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:14,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476397721] [2024-09-12 19:15:14,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:14,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465794593] [2024-09-12 19:15:14,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465794593] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:14,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:14,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:15:14,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184426695] [2024-09-12 19:15:14,305 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:14,305 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:15:14,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:14,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:15:14,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:15:14,306 INFO L87 Difference]: Start difference. First operand 452 states and 554 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 19:15:14,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:14,771 INFO L93 Difference]: Finished difference Result 462 states and 564 transitions. [2024-09-12 19:15:14,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:15:14,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2024-09-12 19:15:14,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:14,773 INFO L225 Difference]: With dead ends: 462 [2024-09-12 19:15:14,773 INFO L226 Difference]: Without dead ends: 461 [2024-09-12 19:15:14,774 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:15:14,774 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 82 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:14,774 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 309 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:15:14,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-09-12 19:15:15,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 454. [2024-09-12 19:15:15,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 364 states have (on average 1.1703296703296704) internal successors, (426), 374 states have internal predecessors, (426), 66 states have call successors, (66), 15 states have call predecessors, (66), 14 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 19:15:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 556 transitions. [2024-09-12 19:15:15,042 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 556 transitions. Word has length 113 [2024-09-12 19:15:15,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:15,043 INFO L474 AbstractCegarLoop]: Abstraction has 454 states and 556 transitions. [2024-09-12 19:15:15,043 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 19:15:15,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:15,043 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 556 transitions. [2024-09-12 19:15:15,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 19:15:15,044 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:15,044 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:15,056 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:15,248 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:15,249 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:15,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:15,249 INFO L85 PathProgramCache]: Analyzing trace with hash 758043481, now seen corresponding path program 1 times [2024-09-12 19:15:15,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:15,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552487244] [2024-09-12 19:15:15,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:15,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:15,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135650564] [2024-09-12 19:15:15,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:15,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:15,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:15,274 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:15,278 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:15:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:15,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 19:15:15,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 52 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-09-12 19:15:15,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 46 proven. 18 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-09-12 19:15:16,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:16,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552487244] [2024-09-12 19:15:16,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:16,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135650564] [2024-09-12 19:15:16,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135650564] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:16,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:15:16,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 27 [2024-09-12 19:15:16,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520881746] [2024-09-12 19:15:16,491 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:16,491 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 19:15:16,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:16,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 19:15:16,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:15:16,493 INFO L87 Difference]: Start difference. First operand 454 states and 556 transitions. Second operand has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 23 states have internal predecessors, (106), 11 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 12 states have call predecessors, (25), 9 states have call successors, (25) [2024-09-12 19:15:17,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:17,965 INFO L93 Difference]: Finished difference Result 484 states and 583 transitions. [2024-09-12 19:15:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:15:17,966 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 23 states have internal predecessors, (106), 11 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 12 states have call predecessors, (25), 9 states have call successors, (25) Word has length 117 [2024-09-12 19:15:17,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:17,967 INFO L225 Difference]: With dead ends: 484 [2024-09-12 19:15:17,968 INFO L226 Difference]: Without dead ends: 442 [2024-09-12 19:15:17,968 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=294, Invalid=1346, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 19:15:17,968 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 200 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:17,969 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 478 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:15:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-09-12 19:15:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 439. [2024-09-12 19:15:18,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 348 states have (on average 1.1724137931034482) internal successors, (408), 359 states have internal predecessors, (408), 64 states have call successors, (64), 19 states have call predecessors, (64), 18 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 19:15:18,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 534 transitions. [2024-09-12 19:15:18,193 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 534 transitions. Word has length 117 [2024-09-12 19:15:18,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:18,193 INFO L474 AbstractCegarLoop]: Abstraction has 439 states and 534 transitions. [2024-09-12 19:15:18,193 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 23 states have internal predecessors, (106), 11 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 12 states have call predecessors, (25), 9 states have call successors, (25) [2024-09-12 19:15:18,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:18,193 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 534 transitions. [2024-09-12 19:15:18,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 19:15:18,194 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:18,194 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:18,208 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:18,398 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:18,399 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:18,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:18,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2138845960, now seen corresponding path program 2 times [2024-09-12 19:15:18,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:18,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342272571] [2024-09-12 19:15:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:18,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:18,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1503860545] [2024-09-12 19:15:18,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:15:18,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:18,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:18,418 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:18,422 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:15:18,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:15:18,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:18,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:15:18,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:18,974 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-09-12 19:15:18,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:19,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:19,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342272571] [2024-09-12 19:15:19,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:19,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503860545] [2024-09-12 19:15:19,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503860545] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:19,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:19,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:15:19,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648722739] [2024-09-12 19:15:19,265 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:19,266 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:15:19,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:19,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:15:19,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:15:19,267 INFO L87 Difference]: Start difference. First operand 439 states and 534 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 19:15:19,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:19,956 INFO L93 Difference]: Finished difference Result 457 states and 557 transitions. [2024-09-12 19:15:19,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:15:19,956 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 117 [2024-09-12 19:15:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:19,958 INFO L225 Difference]: With dead ends: 457 [2024-09-12 19:15:19,958 INFO L226 Difference]: Without dead ends: 456 [2024-09-12 19:15:19,961 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:15:19,965 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 144 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:19,965 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 464 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:15:19,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-09-12 19:15:20,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 439. [2024-09-12 19:15:20,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 348 states have (on average 1.1666666666666667) internal successors, (406), 359 states have internal predecessors, (406), 64 states have call successors, (64), 19 states have call predecessors, (64), 18 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 19:15:20,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 532 transitions. [2024-09-12 19:15:20,196 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 532 transitions. Word has length 117 [2024-09-12 19:15:20,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:20,197 INFO L474 AbstractCegarLoop]: Abstraction has 439 states and 532 transitions. [2024-09-12 19:15:20,197 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 19:15:20,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:20,197 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 532 transitions. [2024-09-12 19:15:20,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-12 19:15:20,197 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:20,197 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:20,209 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 19:15:20,401 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 19:15:20,401 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:20,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:20,402 INFO L85 PathProgramCache]: Analyzing trace with hash -548809431, now seen corresponding path program 2 times [2024-09-12 19:15:20,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:20,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260969812] [2024-09-12 19:15:20,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:20,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:15:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:15:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:15:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:15:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:15:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:15:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:15:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:15:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:15:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:15:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:15:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:15:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:15:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:15:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 19:15:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:15:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 19:15:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:20,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:20,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260969812] [2024-09-12 19:15:20,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260969812] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:20,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411317591] [2024-09-12 19:15:20,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:15:20,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:20,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:20,518 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:20,519 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 19:15:20,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:15:20,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:20,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:15:20,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:20,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:20,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411317591] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:20,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:15:20,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-09-12 19:15:20,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574955] [2024-09-12 19:15:20,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:20,746 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:15:20,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:20,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:15:20,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:15:20,747 INFO L87 Difference]: Start difference. First operand 439 states and 532 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-09-12 19:15:21,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:21,047 INFO L93 Difference]: Finished difference Result 456 states and 545 transitions. [2024-09-12 19:15:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:15:21,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 133 [2024-09-12 19:15:21,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:21,049 INFO L225 Difference]: With dead ends: 456 [2024-09-12 19:15:21,049 INFO L226 Difference]: Without dead ends: 439 [2024-09-12 19:15:21,049 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 297 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:15:21,050 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 31 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:21,050 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 183 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:15:21,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-09-12 19:15:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 437. [2024-09-12 19:15:21,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 346 states have (on average 1.1560693641618498) internal successors, (400), 357 states have internal predecessors, (400), 64 states have call successors, (64), 19 states have call predecessors, (64), 18 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 19:15:21,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 526 transitions. [2024-09-12 19:15:21,290 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 526 transitions. Word has length 133 [2024-09-12 19:15:21,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:21,291 INFO L474 AbstractCegarLoop]: Abstraction has 437 states and 526 transitions. [2024-09-12 19:15:21,291 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-09-12 19:15:21,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:21,291 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 526 transitions. [2024-09-12 19:15:21,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:15:21,292 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:21,293 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:21,308 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-12 19:15:21,494 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 19:15:21,494 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:21,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:21,495 INFO L85 PathProgramCache]: Analyzing trace with hash -170622891, now seen corresponding path program 1 times [2024-09-12 19:15:21,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:21,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38129426] [2024-09-12 19:15:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:21,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:15:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:15:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:15:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:15:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:15:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:15:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:15:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:15:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:15:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:15:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:15:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:15:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:15:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:15:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 19:15:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:15:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 19:15:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,769 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-09-12 19:15:21,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:21,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38129426] [2024-09-12 19:15:21,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38129426] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:21,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412552037] [2024-09-12 19:15:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:21,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:21,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:21,771 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:21,773 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 19:15:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:21,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:15:21,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:22,090 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2024-09-12 19:15:22,090 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:22,787 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2024-09-12 19:15:22,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412552037] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:22,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:15:22,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-09-12 19:15:22,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626360370] [2024-09-12 19:15:22,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:22,788 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 19:15:22,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:22,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 19:15:22,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:15:22,789 INFO L87 Difference]: Start difference. First operand 437 states and 526 transitions. Second operand has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2024-09-12 19:15:25,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:25,071 INFO L93 Difference]: Finished difference Result 884 states and 1116 transitions. [2024-09-12 19:15:25,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 19:15:25,071 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) Word has length 139 [2024-09-12 19:15:25,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:25,074 INFO L225 Difference]: With dead ends: 884 [2024-09-12 19:15:25,074 INFO L226 Difference]: Without dead ends: 883 [2024-09-12 19:15:25,075 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=626, Invalid=1630, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 19:15:25,075 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 692 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:25,076 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 808 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 19:15:25,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-09-12 19:15:25,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 565. [2024-09-12 19:15:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 462 states have (on average 1.199134199134199) internal successors, (554), 473 states have internal predecessors, (554), 76 states have call successors, (76), 19 states have call predecessors, (76), 18 states have return successors, (74), 72 states have call predecessors, (74), 74 states have call successors, (74) [2024-09-12 19:15:25,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 704 transitions. [2024-09-12 19:15:25,423 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 704 transitions. Word has length 139 [2024-09-12 19:15:25,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:25,423 INFO L474 AbstractCegarLoop]: Abstraction has 565 states and 704 transitions. [2024-09-12 19:15:25,423 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2024-09-12 19:15:25,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:25,423 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 704 transitions. [2024-09-12 19:15:25,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-09-12 19:15:25,424 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:25,424 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2024-09-12 19:15:25,436 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:25,624 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 19:15:25,625 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:25,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:25,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1780312404, now seen corresponding path program 3 times [2024-09-12 19:15:25,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:25,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768721231] [2024-09-12 19:15:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:25,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:25,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88729033] [2024-09-12 19:15:25,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:15:25,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:25,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:25,651 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:25,652 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 19:15:25,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:15:25,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:25,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:15:25,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 39 proven. 32 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-09-12 19:15:25,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:26,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:26,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768721231] [2024-09-12 19:15:26,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:26,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88729033] [2024-09-12 19:15:26,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88729033] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:26,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:26,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 19:15:26,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552409046] [2024-09-12 19:15:26,308 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:26,309 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:15:26,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:26,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:15:26,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:15:26,309 INFO L87 Difference]: Start difference. First operand 565 states and 704 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:15:28,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:15:29,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:29,143 INFO L93 Difference]: Finished difference Result 613 states and 764 transitions. [2024-09-12 19:15:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:15:29,143 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2024-09-12 19:15:29,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:29,146 INFO L225 Difference]: With dead ends: 613 [2024-09-12 19:15:29,146 INFO L226 Difference]: Without dead ends: 612 [2024-09-12 19:15:29,146 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:15:29,147 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 79 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:29,147 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 324 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-09-12 19:15:29,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-09-12 19:15:29,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 595. [2024-09-12 19:15:29,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 488 states have (on average 1.194672131147541) internal successors, (583), 499 states have internal predecessors, (583), 80 states have call successors, (80), 19 states have call predecessors, (80), 18 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-09-12 19:15:29,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 741 transitions. [2024-09-12 19:15:29,525 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 741 transitions. Word has length 140 [2024-09-12 19:15:29,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:29,525 INFO L474 AbstractCegarLoop]: Abstraction has 595 states and 741 transitions. [2024-09-12 19:15:29,526 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:15:29,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 741 transitions. [2024-09-12 19:15:29,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-09-12 19:15:29,526 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:29,527 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:29,538 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-09-12 19:15:29,728 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 19:15:29,728 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:29,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:29,729 INFO L85 PathProgramCache]: Analyzing trace with hash -759837033, now seen corresponding path program 1 times [2024-09-12 19:15:29,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:29,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768716489] [2024-09-12 19:15:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:29,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:15:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:15:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:15:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:15:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:15:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:15:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:15:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:15:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:15:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:15:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:15:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:15:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:15:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:15:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 19:15:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:15:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 19:15:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,928 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:29,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:29,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768716489] [2024-09-12 19:15:29,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768716489] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:29,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650528568] [2024-09-12 19:15:29,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:29,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:29,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:29,931 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:29,935 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 19:15:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:29,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:15:29,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:30,161 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:30,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:31,030 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:31,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650528568] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:31,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:15:31,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-09-12 19:15:31,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303328394] [2024-09-12 19:15:31,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:31,031 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 19:15:31,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:31,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 19:15:31,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:15:31,031 INFO L87 Difference]: Start difference. First operand 595 states and 741 transitions. Second operand has 19 states, 18 states have (on average 9.666666666666666) internal successors, (174), 19 states have internal predecessors, (174), 13 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) [2024-09-12 19:15:32,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:32,557 INFO L93 Difference]: Finished difference Result 882 states and 1110 transitions. [2024-09-12 19:15:32,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 19:15:32,557 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.666666666666666) internal successors, (174), 19 states have internal predecessors, (174), 13 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) Word has length 141 [2024-09-12 19:15:32,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:32,560 INFO L225 Difference]: With dead ends: 882 [2024-09-12 19:15:32,560 INFO L226 Difference]: Without dead ends: 881 [2024-09-12 19:15:32,560 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 306 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=333, Invalid=537, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:15:32,561 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 310 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:32,561 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 588 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:15:32,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-09-12 19:15:33,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 783. [2024-09-12 19:15:33,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 656 states have (on average 1.1951219512195121) internal successors, (784), 667 states have internal predecessors, (784), 100 states have call successors, (100), 19 states have call predecessors, (100), 18 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-09-12 19:15:33,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 982 transitions. [2024-09-12 19:15:33,106 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 982 transitions. Word has length 141 [2024-09-12 19:15:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:33,106 INFO L474 AbstractCegarLoop]: Abstraction has 783 states and 982 transitions. [2024-09-12 19:15:33,106 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.666666666666666) internal successors, (174), 19 states have internal predecessors, (174), 13 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) [2024-09-12 19:15:33,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 982 transitions. [2024-09-12 19:15:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-09-12 19:15:33,107 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:33,107 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:33,119 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-09-12 19:15:33,307 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:33,307 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:33,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1483239446, now seen corresponding path program 2 times [2024-09-12 19:15:33,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:33,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063506539] [2024-09-12 19:15:33,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:33,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:33,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929292102] [2024-09-12 19:15:33,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:15:33,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:33,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:33,325 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:33,329 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 19:15:33,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:15:33,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:33,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 19:15:33,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:34,033 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-09-12 19:15:34,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-09-12 19:15:35,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:35,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063506539] [2024-09-12 19:15:35,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:35,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929292102] [2024-09-12 19:15:35,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929292102] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:35,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:15:35,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2024-09-12 19:15:35,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114828089] [2024-09-12 19:15:35,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:35,831 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 19:15:35,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:35,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 19:15:35,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2024-09-12 19:15:35,832 INFO L87 Difference]: Start difference. First operand 783 states and 982 transitions. Second operand has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 10 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2024-09-12 19:15:46,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:46,984 INFO L93 Difference]: Finished difference Result 891 states and 1114 transitions. [2024-09-12 19:15:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-12 19:15:46,984 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 10 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) Word has length 142 [2024-09-12 19:15:46,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:46,987 INFO L225 Difference]: With dead ends: 891 [2024-09-12 19:15:46,987 INFO L226 Difference]: Without dead ends: 890 [2024-09-12 19:15:46,988 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=707, Invalid=2715, Unknown=0, NotChecked=0, Total=3422 [2024-09-12 19:15:46,989 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 536 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 2428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:46,989 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 889 Invalid, 2428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2267 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-09-12 19:15:46,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2024-09-12 19:15:47,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 841. [2024-09-12 19:15:47,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 708 states have (on average 1.1836158192090396) internal successors, (838), 719 states have internal predecessors, (838), 106 states have call successors, (106), 19 states have call predecessors, (106), 18 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2024-09-12 19:15:47,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1048 transitions. [2024-09-12 19:15:47,654 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1048 transitions. Word has length 142 [2024-09-12 19:15:47,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:47,655 INFO L474 AbstractCegarLoop]: Abstraction has 841 states and 1048 transitions. [2024-09-12 19:15:47,655 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 10 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2024-09-12 19:15:47,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1048 transitions. [2024-09-12 19:15:47,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-09-12 19:15:47,656 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:47,656 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:47,668 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 19:15:47,859 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 19:15:47,860 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:47,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:47,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1827312733, now seen corresponding path program 4 times [2024-09-12 19:15:47,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:47,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901198071] [2024-09-12 19:15:47,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:47,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:47,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840573267] [2024-09-12 19:15:47,886 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:15:47,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:47,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:47,888 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:47,888 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 19:15:47,941 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:15:47,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:47,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:15:47,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:48,614 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-09-12 19:15:48,614 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:48,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:48,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901198071] [2024-09-12 19:15:48,909 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:48,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840573267] [2024-09-12 19:15:48,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840573267] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:48,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:48,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 19:15:48,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461784704] [2024-09-12 19:15:48,910 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:48,910 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:15:48,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:48,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:15:48,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:15:48,911 INFO L87 Difference]: Start difference. First operand 841 states and 1048 transitions. Second operand has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 19:15:50,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:50,139 INFO L93 Difference]: Finished difference Result 875 states and 1090 transitions. [2024-09-12 19:15:50,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:15:50,139 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 144 [2024-09-12 19:15:50,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:50,142 INFO L225 Difference]: With dead ends: 875 [2024-09-12 19:15:50,142 INFO L226 Difference]: Without dead ends: 874 [2024-09-12 19:15:50,143 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:15:50,143 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 88 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:50,144 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 593 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:15:50,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2024-09-12 19:15:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 841. [2024-09-12 19:15:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 708 states have (on average 1.1793785310734464) internal successors, (835), 719 states have internal predecessors, (835), 106 states have call successors, (106), 19 states have call predecessors, (106), 18 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2024-09-12 19:15:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1045 transitions. [2024-09-12 19:15:50,783 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1045 transitions. Word has length 144 [2024-09-12 19:15:50,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:50,783 INFO L474 AbstractCegarLoop]: Abstraction has 841 states and 1045 transitions. [2024-09-12 19:15:50,783 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 19:15:50,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:50,783 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1045 transitions. [2024-09-12 19:15:50,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-12 19:15:50,784 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:50,784 INFO L216 NwaCegarLoop]: trace histogram [15, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-09-12 19:15:50,796 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-09-12 19:15:50,988 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 19:15:50,988 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:50,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:50,989 INFO L85 PathProgramCache]: Analyzing trace with hash 272029630, now seen corresponding path program 3 times [2024-09-12 19:15:50,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:50,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016921634] [2024-09-12 19:15:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:50,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:51,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473840061] [2024-09-12 19:15:51,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:15:51,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:51,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:51,005 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:51,009 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 19:15:51,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:15:51,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:51,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-09-12 19:15:51,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:16:23,631 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 114 proven. 17 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-09-12 19:16:23,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:16:29,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:16:29,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016921634] [2024-09-12 19:16:29,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:16:29,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473840061] [2024-09-12 19:16:29,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473840061] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:16:29,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:16:29,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 19:16:29,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814628139] [2024-09-12 19:16:29,824 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:16:29,825 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:16:29,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:16:29,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:16:29,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:16:29,826 INFO L87 Difference]: Start difference. First operand 841 states and 1045 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:16:33,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:16:37,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:16:41,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:16:45,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:16:49,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:16:54,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:16:58,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:16:58,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:16:58,972 INFO L93 Difference]: Finished difference Result 853 states and 1053 transitions. [2024-09-12 19:16:58,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:16:58,973 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 146 [2024-09-12 19:16:58,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:16:58,976 INFO L225 Difference]: With dead ends: 853 [2024-09-12 19:16:58,976 INFO L226 Difference]: Without dead ends: 850 [2024-09-12 19:16:58,976 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:16:58,976 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 48 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 13 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:16:58,977 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 294 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 565 Invalid, 7 Unknown, 0 Unchecked, 28.4s Time] [2024-09-12 19:16:58,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-09-12 19:16:59,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 849. [2024-09-12 19:16:59,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 714 states have (on average 1.1764705882352942) internal successors, (840), 725 states have internal predecessors, (840), 106 states have call successors, (106), 21 states have call predecessors, (106), 20 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2024-09-12 19:16:59,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1050 transitions. [2024-09-12 19:16:59,608 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1050 transitions. Word has length 146 [2024-09-12 19:16:59,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:16:59,608 INFO L474 AbstractCegarLoop]: Abstraction has 849 states and 1050 transitions. [2024-09-12 19:16:59,608 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:16:59,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:59,608 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1050 transitions. [2024-09-12 19:16:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-12 19:16:59,609 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:16:59,609 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:16:59,621 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-09-12 19:16:59,813 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 19:16:59,814 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:16:59,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:59,814 INFO L85 PathProgramCache]: Analyzing trace with hash 594090661, now seen corresponding path program 3 times [2024-09-12 19:16:59,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:16:59,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590009205] [2024-09-12 19:16:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:16:59,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:16:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:17:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:17:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:17:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:17:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:17:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:17:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:17:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:17:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:17:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:17:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:17:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 19:17:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:17:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 19:17:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:00,549 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 25 proven. 35 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-09-12 19:17:00,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590009205] [2024-09-12 19:17:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590009205] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613511005] [2024-09-12 19:17:00,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:17:00,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:00,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:00,551 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:17:00,561 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 19:17:00,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:17:00,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:17:00,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 19:17:00,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-09-12 19:17:01,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:03,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613511005] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:03,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:17:03,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 26 [2024-09-12 19:17:03,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174319822] [2024-09-12 19:17:03,064 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:03,064 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 19:17:03,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:03,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 19:17:03,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=830, Unknown=0, NotChecked=0, Total=992 [2024-09-12 19:17:03,065 INFO L87 Difference]: Start difference. First operand 849 states and 1050 transitions. Second operand has 27 states, 26 states have (on average 5.076923076923077) internal successors, (132), 27 states have internal predecessors, (132), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (30), 11 states have call predecessors, (30), 11 states have call successors, (30) [2024-09-12 19:17:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:08,624 INFO L93 Difference]: Finished difference Result 1080 states and 1339 transitions. [2024-09-12 19:17:08,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-12 19:17:08,625 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.076923076923077) internal successors, (132), 27 states have internal predecessors, (132), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (30), 11 states have call predecessors, (30), 11 states have call successors, (30) Word has length 146 [2024-09-12 19:17:08,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:08,629 INFO L225 Difference]: With dead ends: 1080 [2024-09-12 19:17:08,629 INFO L226 Difference]: Without dead ends: 1079 [2024-09-12 19:17:08,630 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 175 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 848 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=585, Invalid=3197, Unknown=0, NotChecked=0, Total=3782 [2024-09-12 19:17:08,630 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 504 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:08,630 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 805 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-09-12 19:17:08,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-09-12 19:17:09,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 988. [2024-09-12 19:17:09,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 837 states have (on average 1.1804062126642771) internal successors, (988), 846 states have internal predecessors, (988), 122 states have call successors, (122), 21 states have call predecessors, (122), 20 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-09-12 19:17:09,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1230 transitions. [2024-09-12 19:17:09,475 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1230 transitions. Word has length 146 [2024-09-12 19:17:09,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:09,476 INFO L474 AbstractCegarLoop]: Abstraction has 988 states and 1230 transitions. [2024-09-12 19:17:09,476 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.076923076923077) internal successors, (132), 27 states have internal predecessors, (132), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (30), 11 states have call predecessors, (30), 11 states have call successors, (30) [2024-09-12 19:17:09,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1230 transitions. [2024-09-12 19:17:09,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-09-12 19:17:09,477 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:09,477 INFO L216 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:09,489 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 19:17:09,677 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 19:17:09,677 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:09,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:09,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1095654707, now seen corresponding path program 4 times [2024-09-12 19:17:09,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:09,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008344760] [2024-09-12 19:17:09,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:09,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:09,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611158125] [2024-09-12 19:17:09,702 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:17:09,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:09,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:09,704 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:17:09,705 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 19:17:09,754 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:17:09,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:17:09,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-09-12 19:17:09,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 26 proven. 56 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:17:10,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 26 proven. 56 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:17:46,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:46,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008344760] [2024-09-12 19:17:46,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:46,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611158125] [2024-09-12 19:17:46,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611158125] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:17:46,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:17:46,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 34 [2024-09-12 19:17:46,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100421862] [2024-09-12 19:17:46,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:46,120 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 19:17:46,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:46,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 19:17:46,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=969, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:17:46,121 INFO L87 Difference]: Start difference. First operand 988 states and 1230 transitions. Second operand has 34 states, 34 states have (on average 3.8823529411764706) internal successors, (132), 33 states have internal predecessors, (132), 13 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 11 states have call predecessors, (30), 11 states have call successors, (30) [2024-09-12 19:18:03,426 WARN L293 SmtUtils]: Spent 12.66s on a formula simplification. DAG size of input: 146 DAG size of output: 129 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:18:24,666 WARN L293 SmtUtils]: Spent 11.97s on a formula simplification. DAG size of input: 155 DAG size of output: 133 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:18:26,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:18:40,430 WARN L293 SmtUtils]: Spent 11.32s on a formula simplification. DAG size of input: 133 DAG size of output: 121 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:18:42,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []