./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.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/mannadiv_valuebound1.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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --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 19:27:06,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:27:06,918 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:27:06,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:27:06,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:27:06,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:27:06,957 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:27:06,958 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:27:06,958 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:27:06,958 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:27:06,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:27:06,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:27:06,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:27:06,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:27:06,963 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:27:06,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:27:06,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:27:06,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:27:06,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:27:06,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:27:06,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:27:06,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:27:06,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:27:06,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:27:06,970 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:27:06,970 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:27:06,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:27:06,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:27:06,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:27:06,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:27:06,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:27:06,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:27:06,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:27:06,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:27:06,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:27:06,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:27:06,973 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:27:06,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:27:06,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:27:06,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:27:06,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:27:06,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:27:06,975 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:27:07,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:27:07,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:27:07,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:27:07,325 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:27:07,326 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:27:07,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2024-09-12 19:27:08,765 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:27:08,978 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:27:08,978 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2024-09-12 19:27:08,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/58f38c8ea/401f98771a9b44cea14ce2d4157069b9/FLAG47190a305 [2024-09-12 19:27:08,995 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/58f38c8ea/401f98771a9b44cea14ce2d4157069b9 [2024-09-12 19:27:08,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:27:08,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:27:09,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:27:09,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:27:09,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:27:09,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:27:08" (1/1) ... [2024-09-12 19:27:09,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e73ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09, skipping insertion in model container [2024-09-12 19:27:09,007 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:27:08" (1/1) ... [2024-09-12 19:27:09,024 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:27:09,145 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/mannadiv_valuebound1.c[573,586] [2024-09-12 19:27:09,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:27:09,169 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:27:09,187 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/mannadiv_valuebound1.c[573,586] [2024-09-12 19:27:09,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:27:09,217 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:27:09,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09 WrapperNode [2024-09-12 19:27:09,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:27:09,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:27:09,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:27:09,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:27:09,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,240 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:27:09,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:27:09,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:27:09,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:27:09,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:27:09,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,259 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,278 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 19:27:09,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,285 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:27:09,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:27:09,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:27:09,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:27:09,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (1/1) ... [2024-09-12 19:27:09,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:27:09,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:09,339 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 19:27:09,345 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 19:27:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:27:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:27:09,387 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:27:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:27:09,387 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:27:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:27:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:27:09,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:27:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:27:09,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:27:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:27:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:27:09,456 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:27:09,458 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:27:09,721 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-09-12 19:27:09,721 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:27:09,755 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:27:09,756 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:27:09,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:27:09 BoogieIcfgContainer [2024-09-12 19:27:09,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:27:09,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:27:09,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:27:09,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:27:09,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:27:08" (1/3) ... [2024-09-12 19:27:09,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1e662a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:27:09, skipping insertion in model container [2024-09-12 19:27:09,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:09" (2/3) ... [2024-09-12 19:27:09,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1e662a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:27:09, skipping insertion in model container [2024-09-12 19:27:09,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:27:09" (3/3) ... [2024-09-12 19:27:09,766 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound1.c [2024-09-12 19:27:09,783 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:27:09,783 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-09-12 19:27:09,848 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:27:09,856 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;@63ac5e0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:27:09,856 INFO L337 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-09-12 19:27:09,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 56 states have internal predecessors, (62), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:27:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:27:09,868 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:09,868 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:09,869 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:09,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:09,877 INFO L85 PathProgramCache]: Analyzing trace with hash 221323231, now seen corresponding path program 1 times [2024-09-12 19:27:09,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:09,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125916139] [2024-09-12 19:27:09,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:09,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:10,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:10,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:10,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:10,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:10,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:10,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125916139] [2024-09-12 19:27:10,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125916139] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:10,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:10,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:27:10,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135778305] [2024-09-12 19:27:10,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:10,066 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:27:10,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:10,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:27:10,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:27:10,090 INFO L87 Difference]: Start difference. First operand has 67 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 56 states have internal predecessors, (62), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:10,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:10,121 INFO L93 Difference]: Finished difference Result 128 states and 145 transitions. [2024-09-12 19:27:10,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:27:10,124 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 18 [2024-09-12 19:27:10,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:10,132 INFO L225 Difference]: With dead ends: 128 [2024-09-12 19:27:10,132 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 19:27:10,135 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:27:10,138 INFO L434 NwaCegarLoop]: 68 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, 68 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 19:27:10,139 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:27:10,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 19:27:10,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-09-12 19:27:10,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 33 states have (on average 1.696969696969697) internal successors, (56), 54 states have internal predecessors, (56), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:27:10,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2024-09-12 19:27:10,176 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 18 [2024-09-12 19:27:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:10,176 INFO L474 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2024-09-12 19:27:10,176 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:10,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:10,178 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2024-09-12 19:27:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:27:10,179 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:10,179 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:10,179 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:27:10,179 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:10,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash 979646126, now seen corresponding path program 1 times [2024-09-12 19:27:10,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:10,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094989470] [2024-09-12 19:27:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:10,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:10,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [633616077] [2024-09-12 19:27:10,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:10,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:10,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:10,211 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 19:27:10,213 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 19:27:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:10,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:27:10,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:10,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:10,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:10,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:10,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094989470] [2024-09-12 19:27:10,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:10,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633616077] [2024-09-12 19:27:10,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633616077] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:10,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:10,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:27:10,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131701472] [2024-09-12 19:27:10,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:10,325 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:27:10,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:10,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:27:10,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:27:10,328 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:10,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:10,511 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2024-09-12 19:27:10,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:27:10,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-09-12 19:27:10,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:10,513 INFO L225 Difference]: With dead ends: 98 [2024-09-12 19:27:10,513 INFO L226 Difference]: Without dead ends: 92 [2024-09-12 19:27:10,513 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 19:27:10,514 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 27 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:10,515 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 86 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-09-12 19:27:10,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2024-09-12 19:27:10,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 52 states have (on average 1.6730769230769231) internal successors, (87), 73 states have internal predecessors, (87), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:27:10,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 99 transitions. [2024-09-12 19:27:10,538 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 99 transitions. Word has length 18 [2024-09-12 19:27:10,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:10,540 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 99 transitions. [2024-09-12 19:27:10,540 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:10,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:10,541 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2024-09-12 19:27:10,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 19:27:10,542 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:10,543 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:10,562 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:10,747 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:10,748 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:10,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash 842091152, now seen corresponding path program 1 times [2024-09-12 19:27:10,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:10,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746568316] [2024-09-12 19:27:10,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:10,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:10,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:10,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:10,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:10,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:10,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746568316] [2024-09-12 19:27:10,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746568316] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:10,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:10,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:10,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799016305] [2024-09-12 19:27:10,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:10,924 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:10,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:10,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:10,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:10,925 INFO L87 Difference]: Start difference. First operand 83 states and 99 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:11,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:11,159 INFO L93 Difference]: Finished difference Result 128 states and 162 transitions. [2024-09-12 19:27:11,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:11,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2024-09-12 19:27:11,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:11,162 INFO L225 Difference]: With dead ends: 128 [2024-09-12 19:27:11,162 INFO L226 Difference]: Without dead ends: 121 [2024-09-12 19:27:11,163 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:11,164 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 22 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:11,164 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 108 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:11,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-09-12 19:27:11,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 116. [2024-09-12 19:27:11,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 83 states have (on average 1.5783132530120483) internal successors, (131), 104 states have internal predecessors, (131), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:11,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 147 transitions. [2024-09-12 19:27:11,206 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 147 transitions. Word has length 20 [2024-09-12 19:27:11,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:11,207 INFO L474 AbstractCegarLoop]: Abstraction has 116 states and 147 transitions. [2024-09-12 19:27:11,207 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:11,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:11,208 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 147 transitions. [2024-09-12 19:27:11,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 19:27:11,208 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:11,208 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:11,208 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:27:11,208 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:11,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:11,209 INFO L85 PathProgramCache]: Analyzing trace with hash 335021999, now seen corresponding path program 1 times [2024-09-12 19:27:11,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:11,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203119695] [2024-09-12 19:27:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:11,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:11,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:11,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:11,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:11,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:11,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:11,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203119695] [2024-09-12 19:27:11,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203119695] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:11,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:11,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:11,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198110856] [2024-09-12 19:27:11,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:11,365 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:11,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:11,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:11,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:11,366 INFO L87 Difference]: Start difference. First operand 116 states and 147 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:11,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:11,758 INFO L93 Difference]: Finished difference Result 123 states and 150 transitions. [2024-09-12 19:27:11,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:11,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2024-09-12 19:27:11,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:11,760 INFO L225 Difference]: With dead ends: 123 [2024-09-12 19:27:11,760 INFO L226 Difference]: Without dead ends: 120 [2024-09-12 19:27:11,761 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:11,762 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 21 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:11,763 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 112 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:27:11,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-09-12 19:27:11,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 115. [2024-09-12 19:27:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 82 states have (on average 1.548780487804878) internal successors, (127), 103 states have internal predecessors, (127), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:11,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 143 transitions. [2024-09-12 19:27:11,795 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 143 transitions. Word has length 21 [2024-09-12 19:27:11,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:11,796 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 143 transitions. [2024-09-12 19:27:11,796 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:11,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 143 transitions. [2024-09-12 19:27:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 19:27:11,797 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:11,797 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:11,797 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:27:11,797 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:11,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1795747442, now seen corresponding path program 1 times [2024-09-12 19:27:11,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:11,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766802724] [2024-09-12 19:27:11,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:11,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:11,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:12,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:12,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:12,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:12,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766802724] [2024-09-12 19:27:12,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766802724] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:12,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696295808] [2024-09-12 19:27:12,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:12,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:12,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:12,059 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 19:27:12,061 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 19:27:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:12,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:12,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:12,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:12,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:12,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696295808] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:12,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:12,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 19:27:12,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157499674] [2024-09-12 19:27:12,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:12,251 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:12,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:12,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:12,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:12,252 INFO L87 Difference]: Start difference. First operand 115 states and 143 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:12,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:12,411 INFO L93 Difference]: Finished difference Result 118 states and 147 transitions. [2024-09-12 19:27:12,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:12,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-09-12 19:27:12,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:12,413 INFO L225 Difference]: With dead ends: 118 [2024-09-12 19:27:12,413 INFO L226 Difference]: Without dead ends: 117 [2024-09-12 19:27:12,413 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:12,414 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 74 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:12,414 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 79 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:12,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-09-12 19:27:12,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-09-12 19:27:12,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 103 states have internal predecessors, (126), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2024-09-12 19:27:12,436 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 22 [2024-09-12 19:27:12,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:12,436 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2024-09-12 19:27:12,437 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:12,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2024-09-12 19:27:12,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 19:27:12,441 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:12,441 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:12,458 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:12,645 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 19:27:12,646 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:12,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:12,646 INFO L85 PathProgramCache]: Analyzing trace with hash -166404079, now seen corresponding path program 1 times [2024-09-12 19:27:12,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:12,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299730995] [2024-09-12 19:27:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:12,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:12,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842660466] [2024-09-12 19:27:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:12,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:12,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:12,661 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 19:27:12,663 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 19:27:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:12,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:12,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:12,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:12,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:12,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:12,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299730995] [2024-09-12 19:27:12,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:12,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842660466] [2024-09-12 19:27:12,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842660466] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:12,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:12,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:12,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820956028] [2024-09-12 19:27:12,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:12,776 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:12,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:12,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:12,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:12,777 INFO L87 Difference]: Start difference. First operand 115 states and 142 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:12,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:12,915 INFO L93 Difference]: Finished difference Result 116 states and 142 transitions. [2024-09-12 19:27:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:12,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-09-12 19:27:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:12,918 INFO L225 Difference]: With dead ends: 116 [2024-09-12 19:27:12,918 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 19:27:12,918 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 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 19:27:12,919 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 67 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:12,919 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 84 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:12,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 19:27:12,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-09-12 19:27:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 82 states have (on average 1.524390243902439) internal successors, (125), 103 states have internal predecessors, (125), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2024-09-12 19:27:12,953 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 23 [2024-09-12 19:27:12,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:12,953 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2024-09-12 19:27:12,953 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:12,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:12,954 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2024-09-12 19:27:12,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:27:12,954 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:12,954 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:12,971 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 19:27:13,158 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:27:13,159 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:13,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:13,159 INFO L85 PathProgramCache]: Analyzing trace with hash 567451521, now seen corresponding path program 1 times [2024-09-12 19:27:13,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:13,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517528019] [2024-09-12 19:27:13,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:13,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:13,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578980042] [2024-09-12 19:27:13,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:13,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:13,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:13,172 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 19:27:13,175 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 19:27:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:27:13,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:13,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:13,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:13,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:13,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517528019] [2024-09-12 19:27:13,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:13,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578980042] [2024-09-12 19:27:13,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578980042] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:13,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:13,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:27:13,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569004271] [2024-09-12 19:27:13,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:13,314 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:27:13,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:13,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:27:13,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:27:13,315 INFO L87 Difference]: Start difference. First operand 115 states and 141 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:13,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:13,471 INFO L93 Difference]: Finished difference Result 121 states and 146 transitions. [2024-09-12 19:27:13,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:27:13,472 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-09-12 19:27:13,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:13,473 INFO L225 Difference]: With dead ends: 121 [2024-09-12 19:27:13,473 INFO L226 Difference]: Without dead ends: 119 [2024-09-12 19:27:13,473 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 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 19:27:13,474 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 8 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:13,474 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 159 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:13,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-09-12 19:27:13,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-09-12 19:27:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 85 states have (on average 1.5058823529411764) internal successors, (128), 106 states have internal predecessors, (128), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 144 transitions. [2024-09-12 19:27:13,502 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 144 transitions. Word has length 27 [2024-09-12 19:27:13,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:13,502 INFO L474 AbstractCegarLoop]: Abstraction has 119 states and 144 transitions. [2024-09-12 19:27:13,502 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:13,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:13,503 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 144 transitions. [2024-09-12 19:27:13,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:27:13,503 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:13,504 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:13,520 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 19:27:13,704 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:13,704 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:13,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:13,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2007172809, now seen corresponding path program 1 times [2024-09-12 19:27:13,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:13,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615827256] [2024-09-12 19:27:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:13,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:13,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:13,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615827256] [2024-09-12 19:27:13,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615827256] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:13,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667364745] [2024-09-12 19:27:13,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:13,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:13,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:13,815 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 19:27:13,817 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 19:27:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:13,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:13,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:13,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:14,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:14,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667364745] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:14,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:14,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-09-12 19:27:14,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78995045] [2024-09-12 19:27:14,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:14,007 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:27:14,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:14,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:27:14,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:14,008 INFO L87 Difference]: Start difference. First operand 119 states and 144 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:14,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:14,125 INFO L93 Difference]: Finished difference Result 172 states and 212 transitions. [2024-09-12 19:27:14,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:27:14,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 35 [2024-09-12 19:27:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:14,127 INFO L225 Difference]: With dead ends: 172 [2024-09-12 19:27:14,127 INFO L226 Difference]: Without dead ends: 170 [2024-09-12 19:27:14,127 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:14,128 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 220 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:14,128 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 200 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:14,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-09-12 19:27:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 160. [2024-09-12 19:27:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 124 states have (on average 1.5080645161290323) internal successors, (187), 145 states have internal predecessors, (187), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 207 transitions. [2024-09-12 19:27:14,166 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 207 transitions. Word has length 35 [2024-09-12 19:27:14,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:14,166 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 207 transitions. [2024-09-12 19:27:14,166 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:14,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:14,167 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 207 transitions. [2024-09-12 19:27:14,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 19:27:14,169 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:14,169 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:14,186 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:27:14,369 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 19:27:14,370 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:14,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:14,370 INFO L85 PathProgramCache]: Analyzing trace with hash -428584877, now seen corresponding path program 1 times [2024-09-12 19:27:14,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:14,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167334847] [2024-09-12 19:27:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:14,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,562 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:14,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:14,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167334847] [2024-09-12 19:27:14,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167334847] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:14,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952821337] [2024-09-12 19:27:14,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:14,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:14,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:14,565 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 19:27:14,567 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 19:27:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:14,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:14,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:14,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:14,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:14,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952821337] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:14,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:14,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-09-12 19:27:14,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588523424] [2024-09-12 19:27:14,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:14,719 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:14,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:14,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:14,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:14,720 INFO L87 Difference]: Start difference. First operand 160 states and 207 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:14,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:14,935 INFO L93 Difference]: Finished difference Result 171 states and 217 transitions. [2024-09-12 19:27:14,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:27:14,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-09-12 19:27:14,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:14,937 INFO L225 Difference]: With dead ends: 171 [2024-09-12 19:27:14,937 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 19:27:14,938 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:27:14,938 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 8 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:14,939 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 172 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:14,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 19:27:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-09-12 19:27:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 124 states have (on average 1.5) internal successors, (186), 145 states have internal predecessors, (186), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:14,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 206 transitions. [2024-09-12 19:27:14,966 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 206 transitions. Word has length 37 [2024-09-12 19:27:14,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:14,966 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 206 transitions. [2024-09-12 19:27:14,967 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:14,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:14,967 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 206 transitions. [2024-09-12 19:27:14,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 19:27:14,968 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:14,968 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:14,988 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 19:27:15,168 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:15,169 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:15,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:15,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2092815023, now seen corresponding path program 1 times [2024-09-12 19:27:15,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:15,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006317586] [2024-09-12 19:27:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:15,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:15,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:15,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:15,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:15,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:15,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:15,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:15,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006317586] [2024-09-12 19:27:15,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006317586] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:15,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:15,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:15,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040913963] [2024-09-12 19:27:15,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:15,215 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:15,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:15,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:15,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:15,216 INFO L87 Difference]: Start difference. First operand 160 states and 206 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:15,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:15,268 INFO L93 Difference]: Finished difference Result 160 states and 206 transitions. [2024-09-12 19:27:15,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:15,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2024-09-12 19:27:15,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:15,270 INFO L225 Difference]: With dead ends: 160 [2024-09-12 19:27:15,270 INFO L226 Difference]: Without dead ends: 158 [2024-09-12 19:27:15,270 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 19:27:15,271 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 58 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:15,271 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 90 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:27:15,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-09-12 19:27:15,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-09-12 19:27:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 124 states have (on average 1.4596774193548387) internal successors, (181), 143 states have internal predecessors, (181), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 201 transitions. [2024-09-12 19:27:15,300 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 201 transitions. Word has length 36 [2024-09-12 19:27:15,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:15,301 INFO L474 AbstractCegarLoop]: Abstraction has 158 states and 201 transitions. [2024-09-12 19:27:15,301 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:15,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:15,301 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 201 transitions. [2024-09-12 19:27:15,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 19:27:15,302 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:15,302 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:15,302 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 19:27:15,303 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:15,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:15,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1150544337, now seen corresponding path program 1 times [2024-09-12 19:27:15,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:15,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358973197] [2024-09-12 19:27:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:15,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:15,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754737882] [2024-09-12 19:27:15,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:15,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:15,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:15,314 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 19:27:15,316 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 19:27:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:15,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:15,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:15,495 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:15,495 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:15,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:15,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358973197] [2024-09-12 19:27:15,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:15,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754737882] [2024-09-12 19:27:15,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754737882] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:15,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:15,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:27:15,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52428986] [2024-09-12 19:27:15,673 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:15,673 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:15,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:15,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:15,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:15,674 INFO L87 Difference]: Start difference. First operand 158 states and 201 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:15,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:15,813 INFO L93 Difference]: Finished difference Result 166 states and 206 transitions. [2024-09-12 19:27:15,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:27:15,814 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-09-12 19:27:15,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:15,815 INFO L225 Difference]: With dead ends: 166 [2024-09-12 19:27:15,816 INFO L226 Difference]: Without dead ends: 159 [2024-09-12 19:27:15,817 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:15,817 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 78 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:15,818 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 60 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:15,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-09-12 19:27:15,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 154. [2024-09-12 19:27:15,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 125 states have (on average 1.352) internal successors, (169), 139 states have internal predecessors, (169), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:15,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 189 transitions. [2024-09-12 19:27:15,847 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 189 transitions. Word has length 38 [2024-09-12 19:27:15,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:15,847 INFO L474 AbstractCegarLoop]: Abstraction has 154 states and 189 transitions. [2024-09-12 19:27:15,848 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:15,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 189 transitions. [2024-09-12 19:27:15,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:27:15,850 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:15,851 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:15,867 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 19:27:16,051 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 19:27:16,052 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:16,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:16,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1307136138, now seen corresponding path program 1 times [2024-09-12 19:27:16,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:16,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436277861] [2024-09-12 19:27:16,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:16,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:16,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365209726] [2024-09-12 19:27:16,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:16,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:16,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:16,064 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 19:27:16,065 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 19:27:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:16,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:16,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:16,237 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:16,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:16,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:16,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436277861] [2024-09-12 19:27:16,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:16,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365209726] [2024-09-12 19:27:16,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365209726] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:16,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:16,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:27:16,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222020843] [2024-09-12 19:27:16,644 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:16,645 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:16,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:16,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:16,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:16,646 INFO L87 Difference]: Start difference. First operand 154 states and 189 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:16,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:16,881 INFO L93 Difference]: Finished difference Result 208 states and 256 transitions. [2024-09-12 19:27:16,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:27:16,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-09-12 19:27:16,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:16,884 INFO L225 Difference]: With dead ends: 208 [2024-09-12 19:27:16,884 INFO L226 Difference]: Without dead ends: 205 [2024-09-12 19:27:16,884 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:16,885 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 90 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:16,885 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 121 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-09-12 19:27:16,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 191. [2024-09-12 19:27:16,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 160 states have (on average 1.34375) internal successors, (215), 174 states have internal predecessors, (215), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:16,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 239 transitions. [2024-09-12 19:27:16,916 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 239 transitions. Word has length 39 [2024-09-12 19:27:16,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:16,917 INFO L474 AbstractCegarLoop]: Abstraction has 191 states and 239 transitions. [2024-09-12 19:27:16,917 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:16,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:16,917 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 239 transitions. [2024-09-12 19:27:16,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 19:27:16,918 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:16,918 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:16,934 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 19:27:17,118 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:17,119 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:17,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:17,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1800702333, now seen corresponding path program 1 times [2024-09-12 19:27:17,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:17,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393260627] [2024-09-12 19:27:17,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:17,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,207 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:17,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:17,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393260627] [2024-09-12 19:27:17,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393260627] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:17,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682252228] [2024-09-12 19:27:17,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:17,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:17,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:17,209 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 19:27:17,216 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 19:27:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:27:17,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:17,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:17,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682252228] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:17,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:17,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-09-12 19:27:17,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569831450] [2024-09-12 19:27:17,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:17,354 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:27:17,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:17,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:27:17,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:27:17,355 INFO L87 Difference]: Start difference. First operand 191 states and 239 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:17,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:17,541 INFO L93 Difference]: Finished difference Result 192 states and 240 transitions. [2024-09-12 19:27:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:27:17,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-09-12 19:27:17,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:17,544 INFO L225 Difference]: With dead ends: 192 [2024-09-12 19:27:17,544 INFO L226 Difference]: Without dead ends: 190 [2024-09-12 19:27:17,544 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:27:17,546 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 32 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:17,546 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 81 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:17,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-09-12 19:27:17,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2024-09-12 19:27:17,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 157 states have (on average 1.3312101910828025) internal successors, (209), 169 states have internal predecessors, (209), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:17,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 233 transitions. [2024-09-12 19:27:17,589 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 233 transitions. Word has length 40 [2024-09-12 19:27:17,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:17,589 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 233 transitions. [2024-09-12 19:27:17,589 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:17,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:17,590 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 233 transitions. [2024-09-12 19:27:17,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 19:27:17,591 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:17,591 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:17,609 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:17,792 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:27:17,792 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:17,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:17,793 INFO L85 PathProgramCache]: Analyzing trace with hash -12802462, now seen corresponding path program 1 times [2024-09-12 19:27:17,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:17,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027102289] [2024-09-12 19:27:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:17,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:17,973 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:17,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:17,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027102289] [2024-09-12 19:27:17,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027102289] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:17,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519625758] [2024-09-12 19:27:17,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:17,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:17,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:17,975 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 19:27:17,977 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 19:27:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:18,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:27:18,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:18,127 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:18,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:26,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519625758] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:26,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:26,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2024-09-12 19:27:26,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607964642] [2024-09-12 19:27:26,294 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:26,295 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:27:26,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:26,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:27:26,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=140, Unknown=2, NotChecked=0, Total=182 [2024-09-12 19:27:26,296 INFO L87 Difference]: Start difference. First operand 186 states and 233 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 19:27:26,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:26,814 INFO L93 Difference]: Finished difference Result 199 states and 239 transitions. [2024-09-12 19:27:26,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:27:26,815 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 41 [2024-09-12 19:27:26,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:26,816 INFO L225 Difference]: With dead ends: 199 [2024-09-12 19:27:26,816 INFO L226 Difference]: Without dead ends: 192 [2024-09-12 19:27:26,817 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=180, Invalid=468, Unknown=2, NotChecked=0, Total=650 [2024-09-12 19:27:26,817 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 103 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:26,818 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 162 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:27:26,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-09-12 19:27:26,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 177. [2024-09-12 19:27:26,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 160 states have internal predecessors, (192), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:26,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 216 transitions. [2024-09-12 19:27:26,865 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 216 transitions. Word has length 41 [2024-09-12 19:27:26,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:26,865 INFO L474 AbstractCegarLoop]: Abstraction has 177 states and 216 transitions. [2024-09-12 19:27:26,866 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 19:27:26,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 216 transitions. [2024-09-12 19:27:26,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 19:27:26,866 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:26,866 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:26,883 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 19:27:27,067 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 19:27:27,067 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:27,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:27,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1575725035, now seen corresponding path program 1 times [2024-09-12 19:27:27,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:27,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408409593] [2024-09-12 19:27:27,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:27,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:27,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:27,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408409593] [2024-09-12 19:27:27,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408409593] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:27,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319174614] [2024-09-12 19:27:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:27,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:27,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:27,260 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 19:27:27,261 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 19:27:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:27,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:27,406 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:27,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:27,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319174614] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:27,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:27,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-09-12 19:27:27,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117022191] [2024-09-12 19:27:27,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:27,737 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:27,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:27,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:27,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:27:27,739 INFO L87 Difference]: Start difference. First operand 177 states and 216 transitions. Second operand has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:28,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:28,203 INFO L93 Difference]: Finished difference Result 178 states and 216 transitions. [2024-09-12 19:27:28,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:27:28,204 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2024-09-12 19:27:28,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:28,205 INFO L225 Difference]: With dead ends: 178 [2024-09-12 19:27:28,205 INFO L226 Difference]: Without dead ends: 175 [2024-09-12 19:27:28,205 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 79 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-09-12 19:27:28,206 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 139 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:28,206 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 191 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:27:28,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-09-12 19:27:28,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 152. [2024-09-12 19:27:28,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 128 states have (on average 1.234375) internal successors, (158), 136 states have internal predecessors, (158), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:27:28,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 180 transitions. [2024-09-12 19:27:28,237 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 180 transitions. Word has length 42 [2024-09-12 19:27:28,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:28,237 INFO L474 AbstractCegarLoop]: Abstraction has 152 states and 180 transitions. [2024-09-12 19:27:28,237 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:28,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:28,238 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 180 transitions. [2024-09-12 19:27:28,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:27:28,238 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:28,239 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:28,255 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 19:27:28,442 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:27:28,443 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:28,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:28,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1602835762, now seen corresponding path program 1 times [2024-09-12 19:27:28,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:28,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229904263] [2024-09-12 19:27:28,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:28,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:28,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [688750946] [2024-09-12 19:27:28,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:28,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:28,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:28,453 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 19:27:28,456 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 19:27:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 19:27:28,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:28,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:28,756 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:28,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:28,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229904263] [2024-09-12 19:27:28,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:28,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688750946] [2024-09-12 19:27:28,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688750946] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:28,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:28,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-09-12 19:27:28,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670814319] [2024-09-12 19:27:28,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:28,758 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:27:28,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:28,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:27:28,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:28,759 INFO L87 Difference]: Start difference. First operand 152 states and 180 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:27:29,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:29,259 INFO L93 Difference]: Finished difference Result 241 states and 288 transitions. [2024-09-12 19:27:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:27:29,260 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 43 [2024-09-12 19:27:29,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:29,261 INFO L225 Difference]: With dead ends: 241 [2024-09-12 19:27:29,261 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 19:27:29,262 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:27:29,263 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 78 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:29,263 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 159 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:27:29,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 19:27:29,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-09-12 19:27:29,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 143 states have (on average 1.1888111888111887) internal successors, (170), 150 states have internal predecessors, (170), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 194 transitions. [2024-09-12 19:27:29,300 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 194 transitions. Word has length 43 [2024-09-12 19:27:29,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:29,300 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 194 transitions. [2024-09-12 19:27:29,300 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:27:29,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 194 transitions. [2024-09-12 19:27:29,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:27:29,301 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:29,301 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:29,318 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:29,505 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:27:29,506 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:29,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:29,506 INFO L85 PathProgramCache]: Analyzing trace with hash -593050690, now seen corresponding path program 1 times [2024-09-12 19:27:29,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:29,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062529466] [2024-09-12 19:27:29,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:29,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:29,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [585584169] [2024-09-12 19:27:29,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:29,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:29,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:29,525 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 19:27:29,526 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 19:27:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:29,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 19:27:29,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:29,753 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:29,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:29,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:29,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062529466] [2024-09-12 19:27:29,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:29,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585584169] [2024-09-12 19:27:29,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585584169] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:29,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:29,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2024-09-12 19:27:29,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755406207] [2024-09-12 19:27:29,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:29,859 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:27:29,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:29,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:27:29,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:27:29,860 INFO L87 Difference]: Start difference. First operand 167 states and 194 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:27:30,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:30,110 INFO L93 Difference]: Finished difference Result 173 states and 199 transitions. [2024-09-12 19:27:30,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:27:30,110 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2024-09-12 19:27:30,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:30,111 INFO L225 Difference]: With dead ends: 173 [2024-09-12 19:27:30,111 INFO L226 Difference]: Without dead ends: 169 [2024-09-12 19:27:30,112 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:27:30,112 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 24 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:30,112 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 159 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:30,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-09-12 19:27:30,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-09-12 19:27:30,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 145 states have (on average 1.1793103448275861) internal successors, (171), 151 states have internal predecessors, (171), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:30,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 195 transitions. [2024-09-12 19:27:30,153 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 195 transitions. Word has length 47 [2024-09-12 19:27:30,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:30,154 INFO L474 AbstractCegarLoop]: Abstraction has 169 states and 195 transitions. [2024-09-12 19:27:30,154 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:27:30,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:30,154 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 195 transitions. [2024-09-12 19:27:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 19:27:30,155 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:30,155 INFO L216 NwaCegarLoop]: trace histogram [3, 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 19:27:30,170 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 19:27:30,356 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:27:30,356 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:30,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:30,356 INFO L85 PathProgramCache]: Analyzing trace with hash -873853872, now seen corresponding path program 1 times [2024-09-12 19:27:30,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:30,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310194456] [2024-09-12 19:27:30,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:30,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:27:30,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:30,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310194456] [2024-09-12 19:27:30,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310194456] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:30,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821204130] [2024-09-12 19:27:30,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:30,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:30,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:30,515 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 19:27:30,516 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 19:27:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:27:30,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 19:27:30,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:27:30,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821204130] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:30,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:30,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 17 [2024-09-12 19:27:30,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320870700] [2024-09-12 19:27:30,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:30,866 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:30,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:30,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:30,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:27:30,867 INFO L87 Difference]: Start difference. First operand 169 states and 195 transitions. Second operand has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 19:27:31,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:31,183 INFO L93 Difference]: Finished difference Result 174 states and 200 transitions. [2024-09-12 19:27:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:27:31,183 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2024-09-12 19:27:31,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:31,185 INFO L225 Difference]: With dead ends: 174 [2024-09-12 19:27:31,185 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 19:27:31,185 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:27:31,186 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 43 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:31,186 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 214 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:31,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 19:27:31,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-09-12 19:27:31,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 138 states have (on average 1.1376811594202898) internal successors, (157), 143 states have internal predecessors, (157), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:31,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 180 transitions. [2024-09-12 19:27:31,229 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 180 transitions. Word has length 57 [2024-09-12 19:27:31,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:31,230 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 180 transitions. [2024-09-12 19:27:31,230 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 19:27:31,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:31,230 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 180 transitions. [2024-09-12 19:27:31,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 19:27:31,231 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:31,231 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:31,247 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 19:27:31,435 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:27:31,436 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:31,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:31,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1394605753, now seen corresponding path program 2 times [2024-09-12 19:27:31,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:31,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976700547] [2024-09-12 19:27:31,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:31,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:31,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558312290] [2024-09-12 19:27:31,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:31,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:31,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:31,448 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 19:27:31,450 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 19:27:31,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:31,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:31,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:31,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:31,609 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:27:31,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:31,873 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:27:31,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:31,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976700547] [2024-09-12 19:27:31,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:31,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558312290] [2024-09-12 19:27:31,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558312290] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:31,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:31,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 19:27:31,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067861536] [2024-09-12 19:27:31,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:31,874 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:27:31,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:31,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:27:31,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:31,876 INFO L87 Difference]: Start difference. First operand 160 states and 180 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:32,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:32,843 INFO L93 Difference]: Finished difference Result 319 states and 372 transitions. [2024-09-12 19:27:32,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:27:32,844 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 59 [2024-09-12 19:27:32,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:32,847 INFO L225 Difference]: With dead ends: 319 [2024-09-12 19:27:32,848 INFO L226 Difference]: Without dead ends: 308 [2024-09-12 19:27:32,848 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:27:32,849 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 172 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:32,849 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 224 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:27:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-09-12 19:27:33,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 302. [2024-09-12 19:27:33,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 273 states have (on average 1.1428571428571428) internal successors, (312), 277 states have internal predecessors, (312), 20 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:27:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 351 transitions. [2024-09-12 19:27:33,004 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 351 transitions. Word has length 59 [2024-09-12 19:27:33,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:33,004 INFO L474 AbstractCegarLoop]: Abstraction has 302 states and 351 transitions. [2024-09-12 19:27:33,005 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:33,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:33,005 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 351 transitions. [2024-09-12 19:27:33,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 19:27:33,006 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:33,006 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:33,026 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 19:27:33,206 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:33,207 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:33,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:33,208 INFO L85 PathProgramCache]: Analyzing trace with hash -928787541, now seen corresponding path program 1 times [2024-09-12 19:27:33,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:33,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672632870] [2024-09-12 19:27:33,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:33,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:27:33,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:33,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672632870] [2024-09-12 19:27:33,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672632870] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:33,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606148843] [2024-09-12 19:27:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:33,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:33,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:33,283 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 19:27:33,284 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 19:27:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:33,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:27:33,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:33,379 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:27:33,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:33,459 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:27:33,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606148843] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:33,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:33,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-09-12 19:27:33,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862417133] [2024-09-12 19:27:33,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:33,460 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:27:33,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:33,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:27:33,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:33,461 INFO L87 Difference]: Start difference. First operand 302 states and 351 transitions. Second operand has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:27:33,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:33,874 INFO L93 Difference]: Finished difference Result 826 states and 1026 transitions. [2024-09-12 19:27:33,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:27:33,874 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 71 [2024-09-12 19:27:33,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:33,879 INFO L225 Difference]: With dead ends: 826 [2024-09-12 19:27:33,879 INFO L226 Difference]: Without dead ends: 824 [2024-09-12 19:27:33,879 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:33,880 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 17 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:33,880 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 99 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:33,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-09-12 19:27:34,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2024-09-12 19:27:34,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 762 states have (on average 1.1167979002624673) internal successors, (851), 765 states have internal predecessors, (851), 54 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 19:27:34,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 958 transitions. [2024-09-12 19:27:34,111 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 958 transitions. Word has length 71 [2024-09-12 19:27:34,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:34,112 INFO L474 AbstractCegarLoop]: Abstraction has 824 states and 958 transitions. [2024-09-12 19:27:34,112 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:27:34,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:34,113 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 958 transitions. [2024-09-12 19:27:34,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:27:34,114 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:34,114 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 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, 1, 1] [2024-09-12 19:27:34,137 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 19:27:34,314 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:34,315 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:34,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:34,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2109403356, now seen corresponding path program 1 times [2024-09-12 19:27:34,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:34,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25010274] [2024-09-12 19:27:34,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:34,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:34,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:34,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:34,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:34,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:34,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:34,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:34,437 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:27:34,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:34,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25010274] [2024-09-12 19:27:34,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25010274] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:34,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869332276] [2024-09-12 19:27:34,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:34,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:34,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:34,441 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 19:27:34,442 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 19:27:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:34,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:34,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:34,564 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:27:34,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:34,652 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 15 proven. 38 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:27:34,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869332276] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:34,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:34,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-09-12 19:27:34,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874867596] [2024-09-12 19:27:34,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:34,654 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:34,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:34,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:34,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:27:34,655 INFO L87 Difference]: Start difference. First operand 824 states and 958 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:34,901 INFO L93 Difference]: Finished difference Result 1008 states and 1168 transitions. [2024-09-12 19:27:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:27:34,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 81 [2024-09-12 19:27:34,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:34,906 INFO L225 Difference]: With dead ends: 1008 [2024-09-12 19:27:34,906 INFO L226 Difference]: Without dead ends: 565 [2024-09-12 19:27:34,908 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:27:34,909 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:34,909 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 108 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:34,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-09-12 19:27:35,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 564. [2024-09-12 19:27:35,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 519 states have (on average 1.1001926782273603) internal successors, (571), 522 states have internal predecessors, (571), 37 states have call successors, (37), 5 states have call predecessors, (37), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 19:27:35,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 644 transitions. [2024-09-12 19:27:35,091 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 644 transitions. Word has length 81 [2024-09-12 19:27:35,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:35,092 INFO L474 AbstractCegarLoop]: Abstraction has 564 states and 644 transitions. [2024-09-12 19:27:35,092 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:35,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:35,092 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 644 transitions. [2024-09-12 19:27:35,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:27:35,093 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:35,093 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 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, 1, 1] [2024-09-12 19:27:35,113 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 19:27:35,293 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:35,295 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:35,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:35,295 INFO L85 PathProgramCache]: Analyzing trace with hash 18271122, now seen corresponding path program 2 times [2024-09-12 19:27:35,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:35,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277565253] [2024-09-12 19:27:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:35,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:35,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:35,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:35,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:35,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:35,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:35,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:27:35,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:35,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277565253] [2024-09-12 19:27:35,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277565253] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:35,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860421775] [2024-09-12 19:27:35,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:35,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:35,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:35,458 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 19:27:35,459 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 19:27:35,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:35,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:35,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:27:35,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:35,595 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:27:35,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:27:35,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860421775] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:35,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:35,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-09-12 19:27:35,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395161544] [2024-09-12 19:27:35,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:35,801 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:27:35,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:35,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:27:35,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:27:35,802 INFO L87 Difference]: Start difference. First operand 564 states and 644 transitions. Second operand has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:27:36,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:36,491 INFO L93 Difference]: Finished difference Result 846 states and 958 transitions. [2024-09-12 19:27:36,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:27:36,492 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 81 [2024-09-12 19:27:36,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:36,497 INFO L225 Difference]: With dead ends: 846 [2024-09-12 19:27:36,497 INFO L226 Difference]: Without dead ends: 845 [2024-09-12 19:27:36,498 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:27:36,499 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 114 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:36,499 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 167 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:27:36,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-09-12 19:27:36,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 760. [2024-09-12 19:27:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 706 states have (on average 1.0821529745042493) internal successors, (764), 709 states have internal predecessors, (764), 46 states have call successors, (46), 5 states have call predecessors, (46), 4 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 19:27:36,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 855 transitions. [2024-09-12 19:27:36,777 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 855 transitions. Word has length 81 [2024-09-12 19:27:36,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:36,778 INFO L474 AbstractCegarLoop]: Abstraction has 760 states and 855 transitions. [2024-09-12 19:27:36,778 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:27:36,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:36,779 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 855 transitions. [2024-09-12 19:27:36,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 19:27:36,780 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:36,780 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:36,798 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 19:27:36,984 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:27:36,985 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:36,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:36,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1331165206, now seen corresponding path program 1 times [2024-09-12 19:27:36,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:36,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073164628] [2024-09-12 19:27:36,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:36,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,074 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:27:37,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:37,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073164628] [2024-09-12 19:27:37,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073164628] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:37,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016526844] [2024-09-12 19:27:37,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:37,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:37,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:37,078 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 19:27:37,081 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 19:27:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:37,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:27:37,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:27:37,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:27:37,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016526844] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:37,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:37,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 19:27:37,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939086130] [2024-09-12 19:27:37,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:37,310 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:27:37,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:37,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:27:37,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:37,311 INFO L87 Difference]: Start difference. First operand 760 states and 855 transitions. Second operand has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:37,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:37,876 INFO L93 Difference]: Finished difference Result 1536 states and 1772 transitions. [2024-09-12 19:27:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:27:37,877 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 94 [2024-09-12 19:27:37,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:37,885 INFO L225 Difference]: With dead ends: 1536 [2024-09-12 19:27:37,885 INFO L226 Difference]: Without dead ends: 1535 [2024-09-12 19:27:37,885 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 197 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 19:27:37,886 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 86 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:37,886 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 192 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:37,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-09-12 19:27:38,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1527. [2024-09-12 19:27:38,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1425 states have (on average 1.1024561403508772) internal successors, (1571), 1428 states have internal predecessors, (1571), 94 states have call successors, (94), 5 states have call predecessors, (94), 4 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 19:27:38,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1758 transitions. [2024-09-12 19:27:38,402 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1758 transitions. Word has length 94 [2024-09-12 19:27:38,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:38,403 INFO L474 AbstractCegarLoop]: Abstraction has 1527 states and 1758 transitions. [2024-09-12 19:27:38,403 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:38,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:38,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1758 transitions. [2024-09-12 19:27:38,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:27:38,404 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:38,404 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:38,421 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 19:27:38,605 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:27:38,605 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:38,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:38,606 INFO L85 PathProgramCache]: Analyzing trace with hash -598918537, now seen corresponding path program 1 times [2024-09-12 19:27:38,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:38,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194128079] [2024-09-12 19:27:38,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:38,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,700 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 65 proven. 24 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:27:38,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:38,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194128079] [2024-09-12 19:27:38,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194128079] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:38,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007391532] [2024-09-12 19:27:38,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:38,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:38,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:38,703 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 19:27:38,705 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 19:27:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:38,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:27:38,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:38,833 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 77 proven. 24 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-09-12 19:27:38,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 65 proven. 24 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:27:38,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007391532] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:38,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:38,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-09-12 19:27:38,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544854988] [2024-09-12 19:27:38,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:38,927 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:27:38,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:38,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:27:38,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:38,928 INFO L87 Difference]: Start difference. First operand 1527 states and 1758 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-09-12 19:27:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:39,448 INFO L93 Difference]: Finished difference Result 1594 states and 1828 transitions. [2024-09-12 19:27:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:27:39,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 99 [2024-09-12 19:27:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:39,456 INFO L225 Difference]: With dead ends: 1594 [2024-09-12 19:27:39,456 INFO L226 Difference]: Without dead ends: 1467 [2024-09-12 19:27:39,456 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 207 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:39,457 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 36 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:39,457 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 175 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:39,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2024-09-12 19:27:39,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1465. [2024-09-12 19:27:39,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1366 states have (on average 1.0937042459736457) internal successors, (1494), 1369 states have internal predecessors, (1494), 91 states have call successors, (91), 5 states have call predecessors, (91), 4 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 19:27:39,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1675 transitions. [2024-09-12 19:27:39,834 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1675 transitions. Word has length 99 [2024-09-12 19:27:39,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:39,835 INFO L474 AbstractCegarLoop]: Abstraction has 1465 states and 1675 transitions. [2024-09-12 19:27:39,835 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-09-12 19:27:39,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:39,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1675 transitions. [2024-09-12 19:27:39,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 19:27:39,837 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:39,837 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:39,853 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 19:27:40,040 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:27:40,041 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:40,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:40,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1752149216, now seen corresponding path program 2 times [2024-09-12 19:27:40,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:40,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065973871] [2024-09-12 19:27:40,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:40,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 19:27:40,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:40,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065973871] [2024-09-12 19:27:40,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065973871] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:40,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759546158] [2024-09-12 19:27:40,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:40,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:40,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:40,166 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 19:27:40,167 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 19:27:40,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:40,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:40,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:40,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 19:27:40,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 19:27:40,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759546158] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:40,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:40,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-09-12 19:27:40,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870540302] [2024-09-12 19:27:40,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:40,486 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:27:40,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:40,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:27:40,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:27:40,487 INFO L87 Difference]: Start difference. First operand 1465 states and 1675 transitions. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:41,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:41,222 INFO L93 Difference]: Finished difference Result 3010 states and 3490 transitions. [2024-09-12 19:27:41,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:27:41,223 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 119 [2024-09-12 19:27:41,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:41,232 INFO L225 Difference]: With dead ends: 3010 [2024-09-12 19:27:41,233 INFO L226 Difference]: Without dead ends: 2198 [2024-09-12 19:27:41,234 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 246 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:27:41,235 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 27 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:41,236 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 259 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:41,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2024-09-12 19:27:41,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 1652. [2024-09-12 19:27:41,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1541 states have (on average 1.0882543802725504) internal successors, (1677), 1544 states have internal predecessors, (1677), 103 states have call successors, (103), 5 states have call predecessors, (103), 4 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-09-12 19:27:41,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1882 transitions. [2024-09-12 19:27:41,672 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1882 transitions. Word has length 119 [2024-09-12 19:27:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:41,673 INFO L474 AbstractCegarLoop]: Abstraction has 1652 states and 1882 transitions. [2024-09-12 19:27:41,673 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:41,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1882 transitions. [2024-09-12 19:27:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:27:41,675 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:41,675 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:41,692 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 19:27:41,875 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 19:27:41,876 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:41,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:41,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1411628859, now seen corresponding path program 3 times [2024-09-12 19:27:41,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:41,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055285652] [2024-09-12 19:27:41,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:41,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:41,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554631177] [2024-09-12 19:27:41,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:27:41,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:41,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:41,901 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 19:27:41,902 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 19:27:41,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:27:41,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:41,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:41,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:41,996 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 101 proven. 5 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-09-12 19:27:41,997 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:42,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:42,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055285652] [2024-09-12 19:27:42,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:42,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554631177] [2024-09-12 19:27:42,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554631177] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:42,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:42,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:27:42,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032757943] [2024-09-12 19:27:42,376 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:42,376 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:27:42,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:42,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:27:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:27:42,377 INFO L87 Difference]: Start difference. First operand 1652 states and 1882 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:27:42,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:42,858 INFO L93 Difference]: Finished difference Result 1654 states and 1882 transitions. [2024-09-12 19:27:42,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:27:42,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 139 [2024-09-12 19:27:42,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:42,867 INFO L225 Difference]: With dead ends: 1654 [2024-09-12 19:27:42,867 INFO L226 Difference]: Without dead ends: 1653 [2024-09-12 19:27:42,867 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:42,868 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 22 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:42,868 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 84 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:27:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2024-09-12 19:27:43,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1652. [2024-09-12 19:27:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1541 states have (on average 1.0863075924724206) internal successors, (1674), 1544 states have internal predecessors, (1674), 103 states have call successors, (103), 5 states have call predecessors, (103), 4 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-09-12 19:27:43,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1879 transitions. [2024-09-12 19:27:43,286 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1879 transitions. Word has length 139 [2024-09-12 19:27:43,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:43,286 INFO L474 AbstractCegarLoop]: Abstraction has 1652 states and 1879 transitions. [2024-09-12 19:27:43,286 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:27:43,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:43,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1879 transitions. [2024-09-12 19:27:43,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:27:43,288 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:43,288 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:43,304 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:43,489 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 19:27:43,489 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:43,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:43,489 INFO L85 PathProgramCache]: Analyzing trace with hash 471485149, now seen corresponding path program 3 times [2024-09-12 19:27:43,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:43,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221166073] [2024-09-12 19:27:43,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:43,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:43,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [76758259] [2024-09-12 19:27:43,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:27:43,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:43,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:43,520 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 19:27:43,521 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 19:27:43,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-12 19:27:43,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:43,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:43,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:43,776 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:44,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:44,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221166073] [2024-09-12 19:27:44,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:44,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76758259] [2024-09-12 19:27:44,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76758259] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:44,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:44,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:27:44,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445027730] [2024-09-12 19:27:44,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:44,070 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:27:44,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:44,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:27:44,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:44,071 INFO L87 Difference]: Start difference. First operand 1652 states and 1879 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:44,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:44,672 INFO L93 Difference]: Finished difference Result 2516 states and 2883 transitions. [2024-09-12 19:27:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 19:27:44,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 139 [2024-09-12 19:27:44,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:44,679 INFO L225 Difference]: With dead ends: 2516 [2024-09-12 19:27:44,679 INFO L226 Difference]: Without dead ends: 1616 [2024-09-12 19:27:44,681 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:27:44,682 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:44,682 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 198 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:44,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-09-12 19:27:45,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1532. [2024-09-12 19:27:45,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1427 states have (on average 1.0861948142957254) internal successors, (1550), 1430 states have internal predecessors, (1550), 97 states have call successors, (97), 5 states have call predecessors, (97), 4 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-09-12 19:27:45,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1743 transitions. [2024-09-12 19:27:45,151 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1743 transitions. Word has length 139 [2024-09-12 19:27:45,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:45,152 INFO L474 AbstractCegarLoop]: Abstraction has 1532 states and 1743 transitions. [2024-09-12 19:27:45,152 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:45,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:45,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1743 transitions. [2024-09-12 19:27:45,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:27:45,154 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:45,155 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:45,177 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 19:27:45,358 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:27:45,359 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:45,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:45,359 INFO L85 PathProgramCache]: Analyzing trace with hash -363420653, now seen corresponding path program 4 times [2024-09-12 19:27:45,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:45,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564424522] [2024-09-12 19:27:45,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:45,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:45,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542201557] [2024-09-12 19:27:45,376 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:27:45,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:45,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:45,379 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 19:27:45,381 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 19:27:45,447 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:27:45,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:45,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:27:45,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 9 proven. 232 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-09-12 19:27:45,921 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:46,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:46,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564424522] [2024-09-12 19:27:46,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:46,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542201557] [2024-09-12 19:27:46,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542201557] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:46,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:46,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-09-12 19:27:46,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480556926] [2024-09-12 19:27:46,199 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:46,199 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:46,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:46,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:46,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:27:46,200 INFO L87 Difference]: Start difference. First operand 1532 states and 1743 transitions. Second operand has 17 states, 16 states have (on average 6.5625) internal successors, (105), 17 states have internal predecessors, (105), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:27:47,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:47,083 INFO L93 Difference]: Finished difference Result 1647 states and 1875 transitions. [2024-09-12 19:27:47,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:27:47,084 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.5625) internal successors, (105), 17 states have internal predecessors, (105), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 139 [2024-09-12 19:27:47,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:47,091 INFO L225 Difference]: With dead ends: 1647 [2024-09-12 19:27:47,091 INFO L226 Difference]: Without dead ends: 1646 [2024-09-12 19:27:47,091 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:27:47,092 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 26 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:47,092 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 447 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:27:47,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-09-12 19:27:47,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1539. [2024-09-12 19:27:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1434 states have (on average 1.0857740585774058) internal successors, (1557), 1437 states have internal predecessors, (1557), 97 states have call successors, (97), 5 states have call predecessors, (97), 4 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-09-12 19:27:47,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1750 transitions. [2024-09-12 19:27:47,493 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1750 transitions. Word has length 139 [2024-09-12 19:27:47,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:47,493 INFO L474 AbstractCegarLoop]: Abstraction has 1539 states and 1750 transitions. [2024-09-12 19:27:47,493 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.5625) internal successors, (105), 17 states have internal predecessors, (105), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:27:47,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:47,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1750 transitions. [2024-09-12 19:27:47,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 19:27:47,495 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:47,496 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:47,511 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-09-12 19:27:47,696 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:27:47,696 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:47,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:47,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1404324233, now seen corresponding path program 2 times [2024-09-12 19:27:47,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:47,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018555530] [2024-09-12 19:27:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:47,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:27:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:27:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:47,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:47,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018555530] [2024-09-12 19:27:47,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018555530] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:47,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752315638] [2024-09-12 19:27:47,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:47,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:47,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:47,834 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 19:27:47,835 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 19:27:47,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:47,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:47,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:27:47,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:48,015 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:48,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:48,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752315638] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:48,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:48,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-09-12 19:27:48,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837585811] [2024-09-12 19:27:48,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:48,206 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:48,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:48,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:48,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:27:48,207 INFO L87 Difference]: Start difference. First operand 1539 states and 1750 transitions. Second operand has 17 states, 16 states have (on average 14.0) internal successors, (224), 17 states have internal predecessors, (224), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:27:49,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:49,046 INFO L93 Difference]: Finished difference Result 2692 states and 3182 transitions. [2024-09-12 19:27:49,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:27:49,047 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 14.0) internal successors, (224), 17 states have internal predecessors, (224), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 151 [2024-09-12 19:27:49,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:49,059 INFO L225 Difference]: With dead ends: 2692 [2024-09-12 19:27:49,060 INFO L226 Difference]: Without dead ends: 2691 [2024-09-12 19:27:49,061 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:27:49,061 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 26 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:49,062 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 163 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:49,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2024-09-12 19:27:49,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2691. [2024-09-12 19:27:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 2514 states have (on average 1.1030230708035005) internal successors, (2773), 2517 states have internal predecessors, (2773), 169 states have call successors, (169), 5 states have call predecessors, (169), 4 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2024-09-12 19:27:49,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3110 transitions. [2024-09-12 19:27:49,847 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3110 transitions. Word has length 151 [2024-09-12 19:27:49,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:49,848 INFO L474 AbstractCegarLoop]: Abstraction has 2691 states and 3110 transitions. [2024-09-12 19:27:49,848 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 14.0) internal successors, (224), 17 states have internal predecessors, (224), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:27:49,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:49,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3110 transitions. [2024-09-12 19:27:49,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-09-12 19:27:49,851 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:49,851 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:49,867 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:50,051 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:27:50,051 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:50,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:50,052 INFO L85 PathProgramCache]: Analyzing trace with hash -536478330, now seen corresponding path program 5 times [2024-09-12 19:27:50,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:50,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50572822] [2024-09-12 19:27:50,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:50,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:27:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:27:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:50,232 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:50,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:50,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50572822] [2024-09-12 19:27:50,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50572822] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:50,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876392359] [2024-09-12 19:27:50,233 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:27:50,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:50,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:50,235 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 19:27:50,237 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 19:27:50,308 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-09-12 19:27:50,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:50,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:27:50,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:50,553 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:50,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:50,737 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:50,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876392359] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:50,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:50,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2024-09-12 19:27:50,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198661554] [2024-09-12 19:27:50,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:50,738 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:27:50,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:50,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:27:50,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:27:50,739 INFO L87 Difference]: Start difference. First operand 2691 states and 3110 transitions. Second operand has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 14 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2024-09-12 19:27:52,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:52,158 INFO L93 Difference]: Finished difference Result 6233 states and 7284 transitions. [2024-09-12 19:27:52,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:27:52,159 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 14 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 159 [2024-09-12 19:27:52,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:52,181 INFO L225 Difference]: With dead ends: 6233 [2024-09-12 19:27:52,181 INFO L226 Difference]: Without dead ends: 4550 [2024-09-12 19:27:52,188 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 326 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:27:52,189 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 13 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:52,189 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 290 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:52,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2024-09-12 19:27:53,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 3220. [2024-09-12 19:27:53,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 3010 states have (on average 1.1) internal successors, (3311), 3013 states have internal predecessors, (3311), 202 states have call successors, (202), 5 states have call predecessors, (202), 4 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-09-12 19:27:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 3714 transitions. [2024-09-12 19:27:53,142 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 3714 transitions. Word has length 159 [2024-09-12 19:27:53,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:53,143 INFO L474 AbstractCegarLoop]: Abstraction has 3220 states and 3714 transitions. [2024-09-12 19:27:53,143 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 14 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2024-09-12 19:27:53,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:53,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 3714 transitions. [2024-09-12 19:27:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-09-12 19:27:53,145 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:53,146 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:53,162 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 19:27:53,346 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:53,346 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:53,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:53,347 INFO L85 PathProgramCache]: Analyzing trace with hash -278706554, now seen corresponding path program 6 times [2024-09-12 19:27:53,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:53,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276376353] [2024-09-12 19:27:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:53,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:27:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:27:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,527 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:53,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:53,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276376353] [2024-09-12 19:27:53,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276376353] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:53,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759364100] [2024-09-12 19:27:53,527 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:27:53,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:53,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:53,529 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 19:27:53,531 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 19:27:53,617 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-09-12 19:27:53,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:53,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:27:53,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:53,828 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:53,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:54,025 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:54,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759364100] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:54,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:54,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-09-12 19:27:54,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677439380] [2024-09-12 19:27:54,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:54,026 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:27:54,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:54,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:27:54,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:27:54,027 INFO L87 Difference]: Start difference. First operand 3220 states and 3714 transitions. Second operand has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:27:55,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:55,306 INFO L93 Difference]: Finished difference Result 3752 states and 4313 transitions. [2024-09-12 19:27:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:27:55,307 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 159 [2024-09-12 19:27:55,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:55,319 INFO L225 Difference]: With dead ends: 3752 [2024-09-12 19:27:55,319 INFO L226 Difference]: Without dead ends: 3215 [2024-09-12 19:27:55,321 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 327 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:27:55,321 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 32 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:55,321 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 352 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:55,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2024-09-12 19:27:56,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2024-09-12 19:27:56,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3213 states, 3003 states have (on average 1.0972360972360973) internal successors, (3295), 3006 states have internal predecessors, (3295), 202 states have call successors, (202), 5 states have call predecessors, (202), 4 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-09-12 19:27:56,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 3698 transitions. [2024-09-12 19:27:56,301 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 3698 transitions. Word has length 159 [2024-09-12 19:27:56,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:56,301 INFO L474 AbstractCegarLoop]: Abstraction has 3213 states and 3698 transitions. [2024-09-12 19:27:56,301 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:27:56,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:56,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 3698 transitions. [2024-09-12 19:27:56,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 19:27:56,305 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:56,305 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:56,321 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:56,509 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:56,510 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:56,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:56,510 INFO L85 PathProgramCache]: Analyzing trace with hash 54019570, now seen corresponding path program 3 times [2024-09-12 19:27:56,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:56,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091116665] [2024-09-12 19:27:56,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:56,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:27:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:27:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:56,743 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 18 proven. 323 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-09-12 19:27:56,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:56,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091116665] [2024-09-12 19:27:56,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091116665] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:56,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998489760] [2024-09-12 19:27:56,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:27:56,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:56,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:56,745 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 19:27:56,747 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 19:27:56,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-12 19:27:56,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:56,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 19:27:56,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 225 proven. 70 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-09-12 19:27:57,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:01,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998489760] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:01,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:28:01,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 25 [2024-09-12 19:28:01,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002203450] [2024-09-12 19:28:01,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:01,971 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 19:28:01,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:01,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 19:28:01,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=751, Unknown=1, NotChecked=0, Total=870 [2024-09-12 19:28:01,972 INFO L87 Difference]: Start difference. First operand 3213 states and 3698 transitions. Second operand has 26 states, 25 states have (on average 8.04) internal successors, (201), 26 states have internal predecessors, (201), 11 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2024-09-12 19:28:06,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:06,242 INFO L93 Difference]: Finished difference Result 3784 states and 4340 transitions. [2024-09-12 19:28:06,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-09-12 19:28:06,243 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.04) internal successors, (201), 26 states have internal predecessors, (201), 11 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) Word has length 161 [2024-09-12 19:28:06,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:06,257 INFO L225 Difference]: With dead ends: 3784 [2024-09-12 19:28:06,257 INFO L226 Difference]: Without dead ends: 3327 [2024-09-12 19:28:06,262 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2536 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1300, Invalid=7441, Unknown=1, NotChecked=0, Total=8742 [2024-09-12 19:28:06,263 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 514 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:06,263 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 281 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 19:28:06,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2024-09-12 19:28:07,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 3286. [2024-09-12 19:28:07,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3072 states have (on average 1.0908203125) internal successors, (3351), 3075 states have internal predecessors, (3351), 206 states have call successors, (206), 5 states have call predecessors, (206), 4 states have return successors, (205), 205 states have call predecessors, (205), 205 states have call successors, (205) [2024-09-12 19:28:07,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 3762 transitions. [2024-09-12 19:28:07,236 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 3762 transitions. Word has length 161 [2024-09-12 19:28:07,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:07,236 INFO L474 AbstractCegarLoop]: Abstraction has 3286 states and 3762 transitions. [2024-09-12 19:28:07,236 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.04) internal successors, (201), 26 states have internal predecessors, (201), 11 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2024-09-12 19:28:07,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:07,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 3762 transitions. [2024-09-12 19:28:07,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-09-12 19:28:07,239 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:07,239 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:07,255 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 19:28:07,439 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:07,440 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:07,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:07,440 INFO L85 PathProgramCache]: Analyzing trace with hash 74294285, now seen corresponding path program 7 times [2024-09-12 19:28:07,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:07,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854064264] [2024-09-12 19:28:07,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:07,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:28:07,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1475640295] [2024-09-12 19:28:07,459 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 19:28:07,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:07,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:07,461 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 19:28:07,463 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 19:28:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 19:28:07,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 21 proven. 411 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 19:28:09,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:09,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:09,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854064264] [2024-09-12 19:28:09,968 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:28:09,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475640295] [2024-09-12 19:28:09,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475640295] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:09,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:28:09,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-09-12 19:28:09,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38196541] [2024-09-12 19:28:09,969 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:09,969 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 19:28:09,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:09,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 19:28:09,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=933, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:28:09,970 INFO L87 Difference]: Start difference. First operand 3286 states and 3762 transitions. Second operand has 29 states, 27 states have (on average 5.111111111111111) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:28:12,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:12,785 INFO L93 Difference]: Finished difference Result 3287 states and 3762 transitions. [2024-09-12 19:28:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-12 19:28:12,785 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 5.111111111111111) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Word has length 179 [2024-09-12 19:28:12,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:12,795 INFO L225 Difference]: With dead ends: 3287 [2024-09-12 19:28:12,795 INFO L226 Difference]: Without dead ends: 3286 [2024-09-12 19:28:12,796 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 876 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=610, Invalid=2582, Unknown=0, NotChecked=0, Total=3192 [2024-09-12 19:28:12,797 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 130 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:12,797 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 343 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:28:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2024-09-12 19:28:13,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3286. [2024-09-12 19:28:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3072 states have (on average 1.0904947916666667) internal successors, (3350), 3075 states have internal predecessors, (3350), 206 states have call successors, (206), 5 states have call predecessors, (206), 4 states have return successors, (205), 205 states have call predecessors, (205), 205 states have call successors, (205) [2024-09-12 19:28:13,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 3761 transitions. [2024-09-12 19:28:13,734 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 3761 transitions. Word has length 179 [2024-09-12 19:28:13,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:13,735 INFO L474 AbstractCegarLoop]: Abstraction has 3286 states and 3761 transitions. [2024-09-12 19:28:13,735 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 5.111111111111111) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:28:13,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:13,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 3761 transitions. [2024-09-12 19:28:13,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-09-12 19:28:13,738 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:13,738 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:13,754 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 19:28:13,938 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 19:28:13,939 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:13,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:13,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1529079929, now seen corresponding path program 8 times [2024-09-12 19:28:13,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:13,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433053777] [2024-09-12 19:28:13,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:13,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:28:13,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [256743703] [2024-09-12 19:28:13,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:28:13,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:13,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:13,966 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 19:28:13,967 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 19:28:14,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:28:14,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:14,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:28:14,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-09-12 19:28:14,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:15,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:15,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433053777] [2024-09-12 19:28:15,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:28:15,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256743703] [2024-09-12 19:28:15,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256743703] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:15,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:28:15,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:28:15,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165687075] [2024-09-12 19:28:15,217 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:15,217 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:28:15,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:15,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:28:15,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:28:15,218 INFO L87 Difference]: Start difference. First operand 3286 states and 3761 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:28:16,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:16,617 INFO L93 Difference]: Finished difference Result 4069 states and 4665 transitions. [2024-09-12 19:28:16,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:28:16,617 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 179 [2024-09-12 19:28:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:16,630 INFO L225 Difference]: With dead ends: 4069 [2024-09-12 19:28:16,631 INFO L226 Difference]: Without dead ends: 4068 [2024-09-12 19:28:16,632 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:28:16,632 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 19 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:16,633 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 226 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:28:16,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4068 states. [2024-09-12 19:28:17,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4068 to 3475. [2024-09-12 19:28:17,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 3249 states have (on average 1.092643890427824) internal successors, (3550), 3252 states have internal predecessors, (3550), 218 states have call successors, (218), 5 states have call predecessors, (218), 4 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2024-09-12 19:28:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 3985 transitions. [2024-09-12 19:28:17,709 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 3985 transitions. Word has length 179 [2024-09-12 19:28:17,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:17,709 INFO L474 AbstractCegarLoop]: Abstraction has 3475 states and 3985 transitions. [2024-09-12 19:28:17,709 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:28:17,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:17,710 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 3985 transitions. [2024-09-12 19:28:17,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 19:28:17,712 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:17,712 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:17,732 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 19:28:17,914 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 19:28:17,914 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:17,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:17,915 INFO L85 PathProgramCache]: Analyzing trace with hash -2071684389, now seen corresponding path program 4 times [2024-09-12 19:28:17,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:17,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700742655] [2024-09-12 19:28:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:17,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 18 proven. 443 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:18,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:18,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700742655] [2024-09-12 19:28:18,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700742655] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:18,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533637209] [2024-09-12 19:28:18,240 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:28:18,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:18,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:18,242 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 19:28:18,243 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 19:28:18,306 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:28:18,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:18,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:28:18,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:18,628 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 21 proven. 455 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-09-12 19:28:18,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:30,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533637209] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:30,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:28:30,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 18 [2024-09-12 19:28:30,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826777894] [2024-09-12 19:28:30,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:30,984 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 19:28:30,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:30,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 19:28:30,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=623, Unknown=3, NotChecked=0, Total=812 [2024-09-12 19:28:30,985 INFO L87 Difference]: Start difference. First operand 3475 states and 3985 transitions. Second operand has 19 states, 18 states have (on average 10.5) internal successors, (189), 19 states have internal predecessors, (189), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:28:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:32,653 INFO L93 Difference]: Finished difference Result 3557 states and 4076 transitions. [2024-09-12 19:28:32,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 19:28:32,653 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.5) internal successors, (189), 19 states have internal predecessors, (189), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) Word has length 181 [2024-09-12 19:28:32,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:32,664 INFO L225 Difference]: With dead ends: 3557 [2024-09-12 19:28:32,664 INFO L226 Difference]: Without dead ends: 3556 [2024-09-12 19:28:32,665 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=671, Invalid=1582, Unknown=3, NotChecked=0, Total=2256 [2024-09-12 19:28:32,666 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 92 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:32,666 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 204 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:28:32,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2024-09-12 19:28:33,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 3523. [2024-09-12 19:28:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 3294 states have (on average 1.0907710989678203) internal successors, (3593), 3297 states have internal predecessors, (3593), 221 states have call successors, (221), 5 states have call predecessors, (221), 4 states have return successors, (220), 220 states have call predecessors, (220), 220 states have call successors, (220) [2024-09-12 19:28:33,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4034 transitions. [2024-09-12 19:28:33,773 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4034 transitions. Word has length 181 [2024-09-12 19:28:33,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:33,773 INFO L474 AbstractCegarLoop]: Abstraction has 3523 states and 4034 transitions. [2024-09-12 19:28:33,773 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.5) internal successors, (189), 19 states have internal predecessors, (189), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:28:33,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:33,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4034 transitions. [2024-09-12 19:28:33,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 19:28:33,776 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:33,776 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:33,792 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-09-12 19:28:33,980 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 19:28:33,981 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:33,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2002360721, now seen corresponding path program 5 times [2024-09-12 19:28:33,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:33,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750564463] [2024-09-12 19:28:33,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:33,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:34,269 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 21 proven. 460 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:34,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:34,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750564463] [2024-09-12 19:28:34,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750564463] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:34,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305592119] [2024-09-12 19:28:34,270 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:28:34,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:34,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:34,272 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:34,272 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 19:28:34,339 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-09-12 19:28:34,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:34,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:28:34,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 21 proven. 460 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:34,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:35,014 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 21 proven. 460 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:35,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305592119] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:35,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:35,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-09-12 19:28:35,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791964479] [2024-09-12 19:28:35,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:35,015 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 19:28:35,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:35,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 19:28:35,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2024-09-12 19:28:35,017 INFO L87 Difference]: Start difference. First operand 3523 states and 4034 transitions. Second operand has 25 states, 24 states have (on average 11.041666666666666) internal successors, (265), 25 states have internal predecessors, (265), 17 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2024-09-12 19:28:38,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:38,267 INFO L93 Difference]: Finished difference Result 6032 states and 6868 transitions. [2024-09-12 19:28:38,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-09-12 19:28:38,268 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 11.041666666666666) internal successors, (265), 25 states have internal predecessors, (265), 17 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) Word has length 181 [2024-09-12 19:28:38,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:38,281 INFO L225 Difference]: With dead ends: 6032 [2024-09-12 19:28:38,281 INFO L226 Difference]: Without dead ends: 6031 [2024-09-12 19:28:38,283 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1328, Invalid=2832, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 19:28:38,283 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 254 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:38,284 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 234 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:28:38,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2024-09-12 19:28:40,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 5837. [2024-09-12 19:28:40,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5837 states, 5480 states have (on average 1.0642335766423359) internal successors, (5832), 5483 states have internal predecessors, (5832), 349 states have call successors, (349), 5 states have call predecessors, (349), 4 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) [2024-09-12 19:28:40,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5837 states to 5837 states and 6529 transitions. [2024-09-12 19:28:40,223 INFO L78 Accepts]: Start accepts. Automaton has 5837 states and 6529 transitions. Word has length 181 [2024-09-12 19:28:40,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:40,223 INFO L474 AbstractCegarLoop]: Abstraction has 5837 states and 6529 transitions. [2024-09-12 19:28:40,223 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 11.041666666666666) internal successors, (265), 25 states have internal predecessors, (265), 17 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2024-09-12 19:28:40,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:40,224 INFO L276 IsEmpty]: Start isEmpty. Operand 5837 states and 6529 transitions. [2024-09-12 19:28:40,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-09-12 19:28:40,226 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:40,226 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:40,242 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-09-12 19:28:40,430 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 19:28:40,430 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:40,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:40,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2114524741, now seen corresponding path program 2 times [2024-09-12 19:28:40,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:40,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022385497] [2024-09-12 19:28:40,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:40,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:28:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,645 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:40,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:40,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022385497] [2024-09-12 19:28:40,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022385497] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:40,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307256588] [2024-09-12 19:28:40,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:28:40,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:40,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:40,647 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:40,649 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 19:28:40,719 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:28:40,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:40,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:28:40,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:40,911 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:40,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:41,257 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:41,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307256588] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:41,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:41,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-09-12 19:28:41,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182061950] [2024-09-12 19:28:41,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:41,258 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:28:41,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:41,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:28:41,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:28:41,259 INFO L87 Difference]: Start difference. First operand 5837 states and 6529 transitions. Second operand has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2024-09-12 19:28:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:45,959 INFO L93 Difference]: Finished difference Result 12065 states and 13685 transitions. [2024-09-12 19:28:45,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 19:28:45,960 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) Word has length 194 [2024-09-12 19:28:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:45,991 INFO L225 Difference]: With dead ends: 12065 [2024-09-12 19:28:45,991 INFO L226 Difference]: Without dead ends: 12064 [2024-09-12 19:28:45,995 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:28:45,996 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 326 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:45,997 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 307 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:28:46,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12064 states. [2024-09-12 19:28:49,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12064 to 9187. [2024-09-12 19:28:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9187 states, 8620 states have (on average 1.0779582366589326) internal successors, (9292), 8623 states have internal predecessors, (9292), 559 states have call successors, (559), 5 states have call predecessors, (559), 4 states have return successors, (558), 558 states have call predecessors, (558), 558 states have call successors, (558) [2024-09-12 19:28:49,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9187 states to 9187 states and 10409 transitions. [2024-09-12 19:28:49,138 INFO L78 Accepts]: Start accepts. Automaton has 9187 states and 10409 transitions. Word has length 194 [2024-09-12 19:28:49,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:49,138 INFO L474 AbstractCegarLoop]: Abstraction has 9187 states and 10409 transitions. [2024-09-12 19:28:49,138 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2024-09-12 19:28:49,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:49,138 INFO L276 IsEmpty]: Start isEmpty. Operand 9187 states and 10409 transitions. [2024-09-12 19:28:49,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-09-12 19:28:49,141 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:49,141 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:49,157 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 19:28:49,341 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 19:28:49,341 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:49,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:49,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1658843318, now seen corresponding path program 9 times [2024-09-12 19:28:49,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:49,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036759575] [2024-09-12 19:28:49,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:49,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:28:49,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044348217] [2024-09-12 19:28:49,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:28:49,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:49,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:49,368 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:49,370 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 19:28:49,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-12 19:28:49,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:49,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 19:28:49,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 318 proven. 71 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-09-12 19:28:50,310 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:51,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:51,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036759575] [2024-09-12 19:28:51,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:28:51,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044348217] [2024-09-12 19:28:51,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044348217] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:51,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:28:51,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 19:28:51,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860686848] [2024-09-12 19:28:51,113 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:51,113 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:28:51,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:51,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:28:51,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:28:51,114 INFO L87 Difference]: Start difference. First operand 9187 states and 10409 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 19:28:55,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:55,994 INFO L93 Difference]: Finished difference Result 9195 states and 10412 transitions. [2024-09-12 19:28:55,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 19:28:55,995 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 199 [2024-09-12 19:28:55,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:56,019 INFO L225 Difference]: With dead ends: 9195 [2024-09-12 19:28:56,020 INFO L226 Difference]: Without dead ends: 8608 [2024-09-12 19:28:56,024 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=175, Invalid=1015, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 19:28:56,025 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 59 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:56,025 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 309 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 19:28:56,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8608 states. [2024-09-12 19:28:58,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8608 to 7975. [2024-09-12 19:28:58,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7975 states, 7482 states have (on average 1.0799251537022188) internal successors, (8080), 7485 states have internal predecessors, (8080), 485 states have call successors, (485), 5 states have call predecessors, (485), 4 states have return successors, (484), 484 states have call predecessors, (484), 484 states have call successors, (484) [2024-09-12 19:28:58,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7975 states to 7975 states and 9049 transitions. [2024-09-12 19:28:58,606 INFO L78 Accepts]: Start accepts. Automaton has 7975 states and 9049 transitions. Word has length 199 [2024-09-12 19:28:58,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:58,606 INFO L474 AbstractCegarLoop]: Abstraction has 7975 states and 9049 transitions. [2024-09-12 19:28:58,606 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 19:28:58,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:58,607 INFO L276 IsEmpty]: Start isEmpty. Operand 7975 states and 9049 transitions. [2024-09-12 19:28:58,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-09-12 19:28:58,609 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:58,609 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:58,623 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 19:28:58,809 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 19:28:58,810 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:58,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:58,810 INFO L85 PathProgramCache]: Analyzing trace with hash -346432532, now seen corresponding path program 10 times [2024-09-12 19:28:58,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:58,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036394333] [2024-09-12 19:28:58,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:58,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:28:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:59,049 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 135 proven. 412 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:59,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:59,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036394333] [2024-09-12 19:28:59,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036394333] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:59,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268749394] [2024-09-12 19:28:59,050 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:28:59,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:59,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:59,052 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:59,053 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 19:28:59,121 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:28:59,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:59,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:28:59,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:59,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:59,725 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:59,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268749394] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:59,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:59,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-09-12 19:28:59,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035671200] [2024-09-12 19:28:59,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:59,726 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 19:28:59,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:59,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 19:28:59,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:28:59,727 INFO L87 Difference]: Start difference. First operand 7975 states and 9049 transitions. Second operand has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:29:04,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:04,133 INFO L93 Difference]: Finished difference Result 16532 states and 19050 transitions. [2024-09-12 19:29:04,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:29:04,134 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 199 [2024-09-12 19:29:04,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:04,162 INFO L225 Difference]: With dead ends: 16532 [2024-09-12 19:29:04,162 INFO L226 Difference]: Without dead ends: 11825 [2024-09-12 19:29:04,175 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 408 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:29:04,175 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 32 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:04,176 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 394 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:29:04,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11825 states. [2024-09-12 19:29:07,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11825 to 8930. [2024-09-12 19:29:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8377 states have (on average 1.0767577891846722) internal successors, (9020), 8380 states have internal predecessors, (9020), 545 states have call successors, (545), 5 states have call predecessors, (545), 4 states have return successors, (544), 544 states have call predecessors, (544), 544 states have call successors, (544) [2024-09-12 19:29:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 10109 transitions. [2024-09-12 19:29:07,139 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 10109 transitions. Word has length 199 [2024-09-12 19:29:07,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:07,139 INFO L474 AbstractCegarLoop]: Abstraction has 8930 states and 10109 transitions. [2024-09-12 19:29:07,139 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:29:07,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 10109 transitions. [2024-09-12 19:29:07,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-09-12 19:29:07,142 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:07,143 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:07,159 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 19:29:07,343 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 19:29:07,343 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:07,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:07,344 INFO L85 PathProgramCache]: Analyzing trace with hash -356774595, now seen corresponding path program 11 times [2024-09-12 19:29:07,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:07,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347040735] [2024-09-12 19:29:07,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:07,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:07,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218824246] [2024-09-12 19:29:07,366 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:29:07,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:07,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:07,368 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:07,370 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 19:29:07,465 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-09-12 19:29:07,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:07,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-09-12 19:29:07,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 24 proven. 656 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-09-12 19:29:09,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:09,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:09,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347040735] [2024-09-12 19:29:09,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:09,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218824246] [2024-09-12 19:29:09,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218824246] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:09,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:09,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2024-09-12 19:29:09,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308958971] [2024-09-12 19:29:09,920 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:09,920 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 19:29:09,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:09,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 19:29:09,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1284, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 19:29:09,922 INFO L87 Difference]: Start difference. First operand 8930 states and 10109 transitions. Second operand has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 33 states have internal predecessors, (168), 13 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 19:29:16,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:16,914 INFO L93 Difference]: Finished difference Result 9168 states and 10379 transitions. [2024-09-12 19:29:16,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-09-12 19:29:16,914 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 33 states have internal predecessors, (168), 13 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) Word has length 219 [2024-09-12 19:29:16,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:16,934 INFO L225 Difference]: With dead ends: 9168 [2024-09-12 19:29:16,934 INFO L226 Difference]: Without dead ends: 9167 [2024-09-12 19:29:16,939 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3999 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1843, Invalid=10147, Unknown=0, NotChecked=0, Total=11990 [2024-09-12 19:29:16,940 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 269 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:16,940 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 352 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 19:29:16,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9167 states. [2024-09-12 19:29:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9167 to 8930. [2024-09-12 19:29:19,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8377 states have (on average 1.0766384147069357) internal successors, (9019), 8380 states have internal predecessors, (9019), 545 states have call successors, (545), 5 states have call predecessors, (545), 4 states have return successors, (544), 544 states have call predecessors, (544), 544 states have call successors, (544) [2024-09-12 19:29:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 10108 transitions. [2024-09-12 19:29:19,953 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 10108 transitions. Word has length 219 [2024-09-12 19:29:19,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:19,953 INFO L474 AbstractCegarLoop]: Abstraction has 8930 states and 10108 transitions. [2024-09-12 19:29:19,954 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 33 states have internal predecessors, (168), 13 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 19:29:19,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:19,954 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 10108 transitions. [2024-09-12 19:29:19,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-09-12 19:29:19,956 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:19,956 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:19,968 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-09-12 19:29:20,157 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 19:29:20,157 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:20,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:20,157 INFO L85 PathProgramCache]: Analyzing trace with hash -873476385, now seen corresponding path program 12 times [2024-09-12 19:29:20,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:20,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215047494] [2024-09-12 19:29:20,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:20,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:20,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [351887911] [2024-09-12 19:29:20,182 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:29:20,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:20,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:20,184 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:20,185 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 19:29:20,287 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-09-12 19:29:20,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:20,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 19:29:20,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-09-12 19:29:21,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:21,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:21,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215047494] [2024-09-12 19:29:21,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:21,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351887911] [2024-09-12 19:29:21,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351887911] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:21,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:21,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:29:21,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589977300] [2024-09-12 19:29:21,361 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:21,361 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:29:21,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:21,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:29:21,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:29:21,362 INFO L87 Difference]: Start difference. First operand 8930 states and 10108 transitions. Second operand has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:29:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:25,006 INFO L93 Difference]: Finished difference Result 9613 states and 10869 transitions. [2024-09-12 19:29:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:29:25,007 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 219 [2024-09-12 19:29:25,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:25,028 INFO L225 Difference]: With dead ends: 9613 [2024-09-12 19:29:25,028 INFO L226 Difference]: Without dead ends: 9612 [2024-09-12 19:29:25,031 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:29:25,031 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 19 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:25,031 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 512 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:29:25,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9612 states. [2024-09-12 19:29:27,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9612 to 8939. [2024-09-12 19:29:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8939 states, 8385 states have (on average 1.0766845557543232) internal successors, (9028), 8388 states have internal predecessors, (9028), 546 states have call successors, (546), 5 states have call predecessors, (546), 4 states have return successors, (545), 545 states have call predecessors, (545), 545 states have call successors, (545) [2024-09-12 19:29:27,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8939 states to 8939 states and 10119 transitions. [2024-09-12 19:29:27,941 INFO L78 Accepts]: Start accepts. Automaton has 8939 states and 10119 transitions. Word has length 219 [2024-09-12 19:29:27,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:27,942 INFO L474 AbstractCegarLoop]: Abstraction has 8939 states and 10119 transitions. [2024-09-12 19:29:27,942 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:29:27,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:27,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8939 states and 10119 transitions. [2024-09-12 19:29:27,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-09-12 19:29:27,945 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:27,945 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:27,957 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 19:29:28,145 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:28,145 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:28,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:28,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2011829074, now seen corresponding path program 13 times [2024-09-12 19:29:28,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:28,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925539775] [2024-09-12 19:29:28,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:28,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:29:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:29:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:29:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:29:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:29:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:29:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:29:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:29:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:29:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:29:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:29:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:29:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:29:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:29:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 203 proven. 638 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-09-12 19:29:28,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:28,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925539775] [2024-09-12 19:29:28,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925539775] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:28,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722726161] [2024-09-12 19:29:28,447 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 19:29:28,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:28,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:28,449 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:28,451 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 19:29:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:28,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:29:28,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 257 proven. 584 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-09-12 19:29:28,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 257 proven. 584 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-09-12 19:29:29,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722726161] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:29:29,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:29:29,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 21 [2024-09-12 19:29:29,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258544615] [2024-09-12 19:29:29,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:29,356 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:29:29,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:29,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:29:29,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:29:29,357 INFO L87 Difference]: Start difference. First operand 8939 states and 10119 transitions. Second operand has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 19 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) [2024-09-12 19:29:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:34,451 INFO L93 Difference]: Finished difference Result 17423 states and 20009 transitions. [2024-09-12 19:29:34,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:29:34,452 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 19 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) Word has length 239 [2024-09-12 19:29:34,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:34,485 INFO L225 Difference]: With dead ends: 17423 [2024-09-12 19:29:34,485 INFO L226 Difference]: Without dead ends: 13040 [2024-09-12 19:29:34,500 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 489 SyntacticMatches, 11 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2024-09-12 19:29:34,501 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 30 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:34,501 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 589 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:29:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13040 states. [2024-09-12 19:29:37,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13040 to 10335. [2024-09-12 19:29:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10335 states, 9694 states have (on average 1.073653806478234) internal successors, (10408), 9697 states have internal predecessors, (10408), 633 states have call successors, (633), 5 states have call predecessors, (633), 4 states have return successors, (632), 632 states have call predecessors, (632), 632 states have call successors, (632) [2024-09-12 19:29:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 11673 transitions. [2024-09-12 19:29:38,003 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 11673 transitions. Word has length 239 [2024-09-12 19:29:38,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:38,003 INFO L474 AbstractCegarLoop]: Abstraction has 10335 states and 11673 transitions. [2024-09-12 19:29:38,003 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 19 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) [2024-09-12 19:29:38,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 11673 transitions. [2024-09-12 19:29:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-09-12 19:29:38,006 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:38,006 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:38,018 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-12 19:29:38,206 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:38,207 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:38,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:38,207 INFO L85 PathProgramCache]: Analyzing trace with hash -88766867, now seen corresponding path program 14 times [2024-09-12 19:29:38,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:38,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852243157] [2024-09-12 19:29:38,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:38,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:38,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31635273] [2024-09-12 19:29:38,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:29:38,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:38,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:38,235 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:38,237 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 19:29:38,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:29:38,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:38,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 19:29:38,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-09-12 19:29:38,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:48,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:48,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852243157] [2024-09-12 19:29:48,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:48,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31635273] [2024-09-12 19:29:48,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31635273] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:48,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:48,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 19:29:48,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067436115] [2024-09-12 19:29:48,441 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:48,441 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:29:48,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:48,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:29:48,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=251, Unknown=2, NotChecked=0, Total=342 [2024-09-12 19:29:48,442 INFO L87 Difference]: Start difference. First operand 10335 states and 11673 transitions. Second operand has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:29:52,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:52,276 INFO L93 Difference]: Finished difference Result 10336 states and 11673 transitions. [2024-09-12 19:29:52,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:29:52,277 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 259 [2024-09-12 19:29:52,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:52,296 INFO L225 Difference]: With dead ends: 10336 [2024-09-12 19:29:52,296 INFO L226 Difference]: Without dead ends: 10335 [2024-09-12 19:29:52,298 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=89, Invalid=251, Unknown=2, NotChecked=0, Total=342 [2024-09-12 19:29:52,298 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 17 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:52,299 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 750 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:29:52,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10335 states. [2024-09-12 19:29:55,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10335 to 10335. [2024-09-12 19:29:55,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10335 states, 9694 states have (on average 1.0735506498865277) internal successors, (10407), 9697 states have internal predecessors, (10407), 633 states have call successors, (633), 5 states have call predecessors, (633), 4 states have return successors, (632), 632 states have call predecessors, (632), 632 states have call successors, (632) [2024-09-12 19:29:55,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 11672 transitions. [2024-09-12 19:29:55,713 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 11672 transitions. Word has length 259 [2024-09-12 19:29:55,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:55,713 INFO L474 AbstractCegarLoop]: Abstraction has 10335 states and 11672 transitions. [2024-09-12 19:29:55,713 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:29:55,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 11672 transitions. [2024-09-12 19:29:55,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-09-12 19:29:55,717 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:55,717 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:55,729 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-09-12 19:29:55,917 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:55,918 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:55,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:55,918 INFO L85 PathProgramCache]: Analyzing trace with hash 575873807, now seen corresponding path program 15 times [2024-09-12 19:29:55,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:55,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826113348] [2024-09-12 19:29:55,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:55,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:55,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1336328601] [2024-09-12 19:29:55,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:29:55,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:55,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:55,941 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:55,942 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 19:29:56,015 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-12 19:29:56,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:56,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:29:56,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1252 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-09-12 19:29:56,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:56,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:56,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826113348] [2024-09-12 19:29:56,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:56,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336328601] [2024-09-12 19:29:56,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336328601] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:56,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:56,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 19:29:56,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124168909] [2024-09-12 19:29:56,759 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:56,759 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:29:56,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:56,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:29:56,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:29:56,760 INFO L87 Difference]: Start difference. First operand 10335 states and 11672 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:30:00,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:00,753 INFO L93 Difference]: Finished difference Result 16170 states and 18408 transitions. [2024-09-12 19:30:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 19:30:00,753 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 259 [2024-09-12 19:30:00,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:00,776 INFO L225 Difference]: With dead ends: 16170 [2024-09-12 19:30:00,776 INFO L226 Difference]: Without dead ends: 9933 [2024-09-12 19:30:00,785 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2024-09-12 19:30:00,785 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 139 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:00,785 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 417 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:30:00,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9933 states. [2024-09-12 19:30:04,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9933 to 9760. [2024-09-12 19:30:04,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9760 states, 9151 states have (on average 1.0755108731286198) internal successors, (9842), 9154 states have internal predecessors, (9842), 601 states have call successors, (601), 5 states have call predecessors, (601), 4 states have return successors, (600), 600 states have call predecessors, (600), 600 states have call successors, (600) [2024-09-12 19:30:04,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9760 states to 9760 states and 11043 transitions. [2024-09-12 19:30:04,035 INFO L78 Accepts]: Start accepts. Automaton has 9760 states and 11043 transitions. Word has length 259 [2024-09-12 19:30:04,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:04,036 INFO L474 AbstractCegarLoop]: Abstraction has 9760 states and 11043 transitions. [2024-09-12 19:30:04,036 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:30:04,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:04,036 INFO L276 IsEmpty]: Start isEmpty. Operand 9760 states and 11043 transitions. [2024-09-12 19:30:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-09-12 19:30:04,039 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:04,039 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:04,050 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 19:30:04,239 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 19:30:04,239 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:04,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:04,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1378899781, now seen corresponding path program 16 times [2024-09-12 19:30:04,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:04,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493267020] [2024-09-12 19:30:04,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:04,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:30:04,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827522342] [2024-09-12 19:30:04,265 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:30:04,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:04,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:04,267 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:30:04,271 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 19:30:04,360 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:30:04,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:04,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 19:30:04,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 30 proven. 862 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-09-12 19:30:05,082 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:05,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:05,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493267020] [2024-09-12 19:30:05,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:30:05,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827522342] [2024-09-12 19:30:05,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827522342] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:05,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:30:05,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 19:30:05,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818206507] [2024-09-12 19:30:05,435 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:05,435 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:30:05,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:05,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:30:05,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:30:05,436 INFO L87 Difference]: Start difference. First operand 9760 states and 11043 transitions. Second operand has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:30:09,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:09,801 INFO L93 Difference]: Finished difference Result 10263 states and 11610 transitions. [2024-09-12 19:30:09,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:30:09,802 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 9 states have call successors, (11) Word has length 259 [2024-09-12 19:30:09,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:09,835 INFO L225 Difference]: With dead ends: 10263 [2024-09-12 19:30:09,835 INFO L226 Difference]: Without dead ends: 10262 [2024-09-12 19:30:09,838 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:30:09,839 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 35 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:09,839 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 583 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:30:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10262 states. [2024-09-12 19:30:13,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10262 to 9769. [2024-09-12 19:30:13,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9769 states, 9159 states have (on average 1.0755540997925537) internal successors, (9851), 9162 states have internal predecessors, (9851), 602 states have call successors, (602), 5 states have call predecessors, (602), 4 states have return successors, (601), 601 states have call predecessors, (601), 601 states have call successors, (601) [2024-09-12 19:30:13,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9769 states to 9769 states and 11054 transitions. [2024-09-12 19:30:13,092 INFO L78 Accepts]: Start accepts. Automaton has 9769 states and 11054 transitions. Word has length 259 [2024-09-12 19:30:13,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:13,092 INFO L474 AbstractCegarLoop]: Abstraction has 9769 states and 11054 transitions. [2024-09-12 19:30:13,092 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:30:13,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:13,093 INFO L276 IsEmpty]: Start isEmpty. Operand 9769 states and 11054 transitions. [2024-09-12 19:30:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-09-12 19:30:13,096 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:13,096 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:13,108 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 19:30:13,296 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:13,297 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:13,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:13,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1282806600, now seen corresponding path program 17 times [2024-09-12 19:30:13,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:13,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702235358] [2024-09-12 19:30:13,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:13,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:30:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:30:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:30:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:30:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:30:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:30:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:30:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:30:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:30:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:30:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:30:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:30:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:30:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:30:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 19:30:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 19:30:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:13,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 287 proven. 912 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-09-12 19:30:13,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:13,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702235358] [2024-09-12 19:30:13,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702235358] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:13,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707896425] [2024-09-12 19:30:13,714 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:30:13,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:13,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:13,715 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:30:13,716 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 19:30:13,791 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-09-12 19:30:13,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:13,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:30:13,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-09-12 19:30:14,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:14,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-09-12 19:30:14,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707896425] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:30:14,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:30:14,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 24 [2024-09-12 19:30:14,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126668235] [2024-09-12 19:30:14,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:14,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:30:14,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:14,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:30:14,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:30:14,710 INFO L87 Difference]: Start difference. First operand 9769 states and 11054 transitions. Second operand has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-09-12 19:30:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:20,195 INFO L93 Difference]: Finished difference Result 18025 states and 20668 transitions. [2024-09-12 19:30:20,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:30:20,195 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 279 [2024-09-12 19:30:20,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:20,223 INFO L225 Difference]: With dead ends: 18025 [2024-09-12 19:30:20,223 INFO L226 Difference]: Without dead ends: 13829 [2024-09-12 19:30:20,231 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 570 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:30:20,232 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 25 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:20,232 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 872 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:30:20,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13829 states. [2024-09-12 19:30:24,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13829 to 11396. [2024-09-12 19:30:24,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11396 states, 10684 states have (on average 1.0733807562710596) internal successors, (11468), 10687 states have internal predecessors, (11468), 704 states have call successors, (704), 5 states have call predecessors, (704), 4 states have return successors, (703), 703 states have call predecessors, (703), 703 states have call successors, (703) [2024-09-12 19:30:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11396 states to 11396 states and 12875 transitions. [2024-09-12 19:30:24,213 INFO L78 Accepts]: Start accepts. Automaton has 11396 states and 12875 transitions. Word has length 279 [2024-09-12 19:30:24,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:24,213 INFO L474 AbstractCegarLoop]: Abstraction has 11396 states and 12875 transitions. [2024-09-12 19:30:24,213 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-09-12 19:30:24,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:24,214 INFO L276 IsEmpty]: Start isEmpty. Operand 11396 states and 12875 transitions. [2024-09-12 19:30:24,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-09-12 19:30:24,217 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:24,217 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:24,229 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-09-12 19:30:24,418 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:24,418 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:24,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash -267776099, now seen corresponding path program 18 times [2024-09-12 19:30:24,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:24,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016348785] [2024-09-12 19:30:24,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:24,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:30:24,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145076484] [2024-09-12 19:30:24,443 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:30:24,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:24,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:24,445 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:30:24,447 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 19:30:24,552 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-09-12 19:30:24,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:24,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-12 19:30:24,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 39 proven. 1305 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-09-12 19:30:27,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:28,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:28,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016348785] [2024-09-12 19:30:28,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:30:28,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145076484] [2024-09-12 19:30:28,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145076484] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:28,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:30:28,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2024-09-12 19:30:28,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989854929] [2024-09-12 19:30:28,006 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:28,006 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-12 19:30:28,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:28,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-12 19:30:28,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=1656, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 19:30:28,007 INFO L87 Difference]: Start difference. First operand 11396 states and 12875 transitions. Second operand has 41 states, 39 states have (on average 5.846153846153846) internal successors, (228), 39 states have internal predecessors, (228), 17 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:30:35,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:35,409 INFO L93 Difference]: Finished difference Result 11397 states and 12875 transitions. [2024-09-12 19:30:35,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-09-12 19:30:35,410 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 39 states have (on average 5.846153846153846) internal successors, (228), 39 states have internal predecessors, (228), 17 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) Word has length 299 [2024-09-12 19:30:35,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:35,437 INFO L225 Difference]: With dead ends: 11397 [2024-09-12 19:30:35,437 INFO L226 Difference]: Without dead ends: 11396 [2024-09-12 19:30:35,441 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2832 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1906, Invalid=7214, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 19:30:35,442 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 233 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:35,442 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 358 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 19:30:35,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11396 states. [2024-09-12 19:30:39,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11396 to 11396. [2024-09-12 19:30:39,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11396 states, 10684 states have (on average 1.0732871583676526) internal successors, (11467), 10687 states have internal predecessors, (11467), 704 states have call successors, (704), 5 states have call predecessors, (704), 4 states have return successors, (703), 703 states have call predecessors, (703), 703 states have call successors, (703) [2024-09-12 19:30:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11396 states to 11396 states and 12874 transitions. [2024-09-12 19:30:39,351 INFO L78 Accepts]: Start accepts. Automaton has 11396 states and 12874 transitions. Word has length 299 [2024-09-12 19:30:39,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:39,352 INFO L474 AbstractCegarLoop]: Abstraction has 11396 states and 12874 transitions. [2024-09-12 19:30:39,352 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 39 states have (on average 5.846153846153846) internal successors, (228), 39 states have internal predecessors, (228), 17 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:30:39,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:39,352 INFO L276 IsEmpty]: Start isEmpty. Operand 11396 states and 12874 transitions. [2024-09-12 19:30:39,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-09-12 19:30:39,356 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:39,356 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:39,369 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-09-12 19:30:39,556 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 19:30:39,557 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:39,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:39,557 INFO L85 PathProgramCache]: Analyzing trace with hash 895189419, now seen corresponding path program 19 times [2024-09-12 19:30:39,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:39,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648238626] [2024-09-12 19:30:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:39,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:30:39,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930826367] [2024-09-12 19:30:39,576 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 19:30:39,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:39,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:39,581 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:30:39,583 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 19:30:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:39,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-09-12 19:30:39,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 39 proven. 1402 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-09-12 19:30:41,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:41,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:41,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648238626] [2024-09-12 19:30:41,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:30:41,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930826367] [2024-09-12 19:30:41,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930826367] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:41,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:30:41,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2024-09-12 19:30:41,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353446208] [2024-09-12 19:30:41,899 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:41,900 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 19:30:41,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:41,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 19:30:41,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1240, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 19:30:41,901 INFO L87 Difference]: Start difference. First operand 11396 states and 12874 transitions. Second operand has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-09-12 19:30:49,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:49,824 INFO L93 Difference]: Finished difference Result 15817 states and 18008 transitions. [2024-09-12 19:30:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 19:30:49,825 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 299 [2024-09-12 19:30:49,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:49,854 INFO L225 Difference]: With dead ends: 15817 [2024-09-12 19:30:49,855 INFO L226 Difference]: Without dead ends: 11592 [2024-09-12 19:30:49,863 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=200, Invalid=2350, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 19:30:49,863 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 94 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 6995 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 7009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 6995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:49,864 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1634 Invalid, 7009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 6995 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-09-12 19:30:49,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11592 states. [2024-09-12 19:30:53,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11592 to 11348. [2024-09-12 19:30:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11348 states, 10638 states have (on average 1.0732280503854108) internal successors, (11417), 10641 states have internal predecessors, (11417), 702 states have call successors, (702), 5 states have call predecessors, (702), 4 states have return successors, (701), 701 states have call predecessors, (701), 701 states have call successors, (701) [2024-09-12 19:30:53,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11348 states to 11348 states and 12820 transitions. [2024-09-12 19:30:53,746 INFO L78 Accepts]: Start accepts. Automaton has 11348 states and 12820 transitions. Word has length 299 [2024-09-12 19:30:53,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:53,747 INFO L474 AbstractCegarLoop]: Abstraction has 11348 states and 12820 transitions. [2024-09-12 19:30:53,747 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-09-12 19:30:53,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:53,747 INFO L276 IsEmpty]: Start isEmpty. Operand 11348 states and 12820 transitions. [2024-09-12 19:30:53,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-09-12 19:30:53,751 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:53,751 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:53,763 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 19:30:53,951 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 19:30:53,952 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:53,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:53,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1692330993, now seen corresponding path program 3 times [2024-09-12 19:30:53,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:53,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269440194] [2024-09-12 19:30:53,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:53,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:30:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:30:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:30:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:30:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:30:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:30:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:30:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:30:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:30:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:30:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:30:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:30:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:30:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:30:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 19:30:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 19:30:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 19:30:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 19:30:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:30:54,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:54,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269440194] [2024-09-12 19:30:54,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269440194] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:54,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625471394] [2024-09-12 19:30:54,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:30:54,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:54,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:54,322 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:30:54,323 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 19:30:54,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-09-12 19:30:54,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:54,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 19:30:54,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:54,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:30:54,680 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:55,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:30:55,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625471394] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:30:55,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:30:55,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2024-09-12 19:30:55,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332733355] [2024-09-12 19:30:55,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:55,384 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 19:30:55,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:55,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 19:30:55,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:30:55,386 INFO L87 Difference]: Start difference. First operand 11348 states and 12820 transitions. Second operand has 33 states, 32 states have (on average 14.5) internal successors, (464), 33 states have internal predecessors, (464), 32 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) [2024-09-12 19:31:01,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:01,416 INFO L93 Difference]: Finished difference Result 16452 states and 19183 transitions. [2024-09-12 19:31:01,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 19:31:01,417 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 14.5) internal successors, (464), 33 states have internal predecessors, (464), 32 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) Word has length 311 [2024-09-12 19:31:01,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:01,457 INFO L225 Difference]: With dead ends: 16452 [2024-09-12 19:31:01,457 INFO L226 Difference]: Without dead ends: 16451 [2024-09-12 19:31:01,460 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:31:01,461 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 20 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:01,461 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 281 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:31:01,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16451 states. [2024-09-12 19:31:06,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16451 to 16451. [2024-09-12 19:31:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16451 states, 15422 states have (on average 1.0907794060433147) internal successors, (16822), 15425 states have internal predecessors, (16822), 1021 states have call successors, (1021), 5 states have call predecessors, (1021), 4 states have return successors, (1020), 1020 states have call predecessors, (1020), 1020 states have call successors, (1020) [2024-09-12 19:31:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16451 states to 16451 states and 18863 transitions. [2024-09-12 19:31:07,016 INFO L78 Accepts]: Start accepts. Automaton has 16451 states and 18863 transitions. Word has length 311 [2024-09-12 19:31:07,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:07,016 INFO L474 AbstractCegarLoop]: Abstraction has 16451 states and 18863 transitions. [2024-09-12 19:31:07,016 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 14.5) internal successors, (464), 33 states have internal predecessors, (464), 32 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) [2024-09-12 19:31:07,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:07,017 INFO L276 IsEmpty]: Start isEmpty. Operand 16451 states and 18863 transitions. [2024-09-12 19:31:07,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-09-12 19:31:07,021 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:07,021 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:07,033 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-09-12 19:31:07,221 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:07,222 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:31:07,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:07,222 INFO L85 PathProgramCache]: Analyzing trace with hash -519429656, now seen corresponding path program 20 times [2024-09-12 19:31:07,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:07,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348267676] [2024-09-12 19:31:07,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:07,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:31:07,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673013218] [2024-09-12 19:31:07,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:31:07,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:07,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:31:07,243 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:31:07,244 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 19:31:07,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:31:07,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:31:07,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 19:31:07,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:31:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2005 backedges. 0 proven. 1293 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-09-12 19:31:08,160 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:31:08,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:08,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348267676] [2024-09-12 19:31:08,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:31:08,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673013218] [2024-09-12 19:31:08,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673013218] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:31:08,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:31:08,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 19:31:08,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352334869] [2024-09-12 19:31:08,430 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:31:08,430 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:31:08,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:08,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:31:08,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:31:08,431 INFO L87 Difference]: Start difference. First operand 16451 states and 18863 transitions. Second operand has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:31:15,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:15,183 INFO L93 Difference]: Finished difference Result 17994 states and 20657 transitions. [2024-09-12 19:31:15,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:31:15,183 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 319 [2024-09-12 19:31:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:15,245 INFO L225 Difference]: With dead ends: 17994 [2024-09-12 19:31:15,245 INFO L226 Difference]: Without dead ends: 17993 [2024-09-12 19:31:15,252 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:31:15,252 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 21 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:15,254 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 384 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:31:15,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17993 states.