./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.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 4e2993d4b0d2c145cb6ebddb0d9f125eb6995ee629adf15e0b0f7e55a8d8a49a --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:35:19,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:35:19,849 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:35:19,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:35:19,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:35:19,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:35:19,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:35:19,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:35:19,890 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:35:19,891 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:35:19,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:35:19,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:35:19,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:35:19,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:35:19,896 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:35:19,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:35:19,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:35:19,897 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:35:19,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:35:19,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:35:19,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:35:19,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:35:19,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:35:19,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:35:19,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:35:19,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:35:19,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:35:19,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:35:19,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:35:19,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:35:19,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:35:19,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:35:19,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:35:19,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:35:19,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:35:19,904 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:35:19,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:35:19,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:35:19,905 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:35:19,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:35:19,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:35:19,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:35:19,906 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e2993d4b0d2c145cb6ebddb0d9f125eb6995ee629adf15e0b0f7e55a8d8a49a Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:35:20,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:35:20,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:35:20,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:35:20,252 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:35:20,253 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:35:20,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c [2024-09-12 18:35:21,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:35:21,937 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:35:21,938 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c [2024-09-12 18:35:21,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/add341744/cbae88fad67146e89b9adf480f0c5050/FLAG9367cf0e8 [2024-09-12 18:35:21,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/add341744/cbae88fad67146e89b9adf480f0c5050 [2024-09-12 18:35:21,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:35:21,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:35:21,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:35:21,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:35:21,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:35:21,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:35:21" (1/1) ... [2024-09-12 18:35:21,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106754b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:21, skipping insertion in model container [2024-09-12 18:35:21,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:35:21" (1/1) ... [2024-09-12 18:35:21,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:35:22,156 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c[588,601] [2024-09-12 18:35:22,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:35:22,218 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:35:22,230 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c[588,601] [2024-09-12 18:35:22,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:35:22,275 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:35:22,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22 WrapperNode [2024-09-12 18:35:22,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:35:22,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:35:22,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:35:22,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:35:22,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,306 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:35:22,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:35:22,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:35:22,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:35:22,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:35:22,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,319 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,352 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:35:22,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,360 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:35:22,374 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:35:22,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:35:22,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:35:22,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (1/1) ... [2024-09-12 18:35:22,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:35:22,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:22,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:35:22,413 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:35:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:35:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:35:22,455 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:35:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:35:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:35:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:35:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:35:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:35:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:35:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:35:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:35:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:35:22,512 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:35:22,514 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:35:23,636 INFO L? ?]: Removed 237 outVars from TransFormulas that were not future-live. [2024-09-12 18:35:23,636 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:35:23,683 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:35:23,683 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:35:23,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:35:23 BoogieIcfgContainer [2024-09-12 18:35:23,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:35:23,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:35:23,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:35:23,691 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:35:23,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:35:21" (1/3) ... [2024-09-12 18:35:23,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a015b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:35:23, skipping insertion in model container [2024-09-12 18:35:23,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:35:22" (2/3) ... [2024-09-12 18:35:23,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a015b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:35:23, skipping insertion in model container [2024-09-12 18:35:23,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:35:23" (3/3) ... [2024-09-12 18:35:23,693 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound10.c [2024-09-12 18:35:23,712 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:35:23,712 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 139 error locations. [2024-09-12 18:35:23,782 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:35:23,789 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;@dc54f4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:35:23,790 INFO L337 AbstractCegarLoop]: Starting to check reachability of 139 error locations. [2024-09-12 18:35:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 310 states, 152 states have (on average 1.9473684210526316) internal successors, (296), 291 states have internal predecessors, (296), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:35:23,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:35:23,803 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:23,804 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:23,804 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:23,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:23,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1218076006, now seen corresponding path program 1 times [2024-09-12 18:35:23,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:23,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111499363] [2024-09-12 18:35:23,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:23,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:23,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:23,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:23,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:35:23,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:23,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111499363] [2024-09-12 18:35:23,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111499363] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:23,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:23,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:35:23,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107191891] [2024-09-12 18:35:23,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:23,985 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:35:23,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:24,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:35:24,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:35:24,012 INFO L87 Difference]: Start difference. First operand has 310 states, 152 states have (on average 1.9473684210526316) internal successors, (296), 291 states have internal predecessors, (296), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:35:24,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:24,108 INFO L93 Difference]: Finished difference Result 605 states and 650 transitions. [2024-09-12 18:35:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:35:24,110 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 18:35:24,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:24,120 INFO L225 Difference]: With dead ends: 605 [2024-09-12 18:35:24,120 INFO L226 Difference]: Without dead ends: 299 [2024-09-12 18:35:24,125 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:35:24,128 INFO L434 NwaCegarLoop]: 311 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:24,129 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 311 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:35:24,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-09-12 18:35:24,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-09-12 18:35:24,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 150 states have (on average 1.8866666666666667) internal successors, (283), 282 states have internal predecessors, (283), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:35:24,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 309 transitions. [2024-09-12 18:35:24,203 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 309 transitions. Word has length 13 [2024-09-12 18:35:24,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:24,204 INFO L474 AbstractCegarLoop]: Abstraction has 299 states and 309 transitions. [2024-09-12 18:35:24,204 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:35:24,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:24,205 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 309 transitions. [2024-09-12 18:35:24,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:35:24,206 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:24,206 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:24,207 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:35:24,207 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:24,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:24,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1275330467, now seen corresponding path program 1 times [2024-09-12 18:35:24,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:24,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769230573] [2024-09-12 18:35:24,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:24,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:24,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:24,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:24,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:35:24,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:24,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769230573] [2024-09-12 18:35:24,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769230573] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:24,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:24,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:35:24,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334104955] [2024-09-12 18:35:24,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:24,343 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:35:24,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:24,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:35:24,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:24,344 INFO L87 Difference]: Start difference. First operand 299 states and 309 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:35:24,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:24,546 INFO L93 Difference]: Finished difference Result 569 states and 590 transitions. [2024-09-12 18:35:24,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:35:24,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 18:35:24,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:24,552 INFO L225 Difference]: With dead ends: 569 [2024-09-12 18:35:24,553 INFO L226 Difference]: Without dead ends: 549 [2024-09-12 18:35:24,554 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:24,555 INFO L434 NwaCegarLoop]: 282 mSDtfsCounter, 238 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:24,558 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 542 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:35:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-09-12 18:35:24,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 358. [2024-09-12 18:35:24,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 204 states have (on average 1.7892156862745099) internal successors, (365), 336 states have internal predecessors, (365), 19 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:35:24,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 401 transitions. [2024-09-12 18:35:24,612 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 401 transitions. Word has length 13 [2024-09-12 18:35:24,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:24,612 INFO L474 AbstractCegarLoop]: Abstraction has 358 states and 401 transitions. [2024-09-12 18:35:24,612 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:35:24,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:24,613 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 401 transitions. [2024-09-12 18:35:24,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 18:35:24,613 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:24,614 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:24,614 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:35:24,614 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:24,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:24,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1856919317, now seen corresponding path program 1 times [2024-09-12 18:35:24,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:24,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577298839] [2024-09-12 18:35:24,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:24,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:24,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:24,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:35:24,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:24,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577298839] [2024-09-12 18:35:24,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577298839] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:24,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:24,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:35:24,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866941211] [2024-09-12 18:35:24,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:24,844 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:35:24,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:24,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:35:24,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:35:24,845 INFO L87 Difference]: Start difference. First operand 358 states and 401 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:35:28,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:28,376 INFO L93 Difference]: Finished difference Result 481 states and 575 transitions. [2024-09-12 18:35:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:35:28,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-09-12 18:35:28,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:28,380 INFO L225 Difference]: With dead ends: 481 [2024-09-12 18:35:28,381 INFO L226 Difference]: Without dead ends: 479 [2024-09-12 18:35:28,381 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:35:28,385 INFO L434 NwaCegarLoop]: 128 mSDtfsCounter, 163 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:28,385 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 473 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-09-12 18:35:28,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-09-12 18:35:28,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 363. [2024-09-12 18:35:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 207 states have (on average 1.7777777777777777) internal successors, (368), 340 states have internal predecessors, (368), 20 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 18:35:28,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 406 transitions. [2024-09-12 18:35:28,431 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 406 transitions. Word has length 20 [2024-09-12 18:35:28,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:28,431 INFO L474 AbstractCegarLoop]: Abstraction has 363 states and 406 transitions. [2024-09-12 18:35:28,432 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:35:28,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:28,432 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 406 transitions. [2024-09-12 18:35:28,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:35:28,433 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:28,434 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:28,434 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:35:28,434 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:28,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:28,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1544609214, now seen corresponding path program 1 times [2024-09-12 18:35:28,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:28,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172212470] [2024-09-12 18:35:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:28,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:28,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068369322] [2024-09-12 18:35:28,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:28,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:28,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:28,470 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:28,473 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:35:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:28,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:35:28,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:35:28,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:35:28,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:28,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172212470] [2024-09-12 18:35:28,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:28,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068369322] [2024-09-12 18:35:28,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068369322] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:28,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:28,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:35:28,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519570281] [2024-09-12 18:35:28,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:28,708 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:35:28,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:28,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:35:28,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:35:28,709 INFO L87 Difference]: Start difference. First operand 363 states and 406 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:35:29,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:29,706 INFO L93 Difference]: Finished difference Result 517 states and 578 transitions. [2024-09-12 18:35:29,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:35:29,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-09-12 18:35:29,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:29,711 INFO L225 Difference]: With dead ends: 517 [2024-09-12 18:35:29,712 INFO L226 Difference]: Without dead ends: 494 [2024-09-12 18:35:29,713 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:35:29,716 INFO L434 NwaCegarLoop]: 176 mSDtfsCounter, 164 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:29,716 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 638 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:35:29,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-09-12 18:35:29,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 443. [2024-09-12 18:35:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 282 states have (on average 1.7446808510638299) internal successors, (492), 414 states have internal predecessors, (492), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:35:29,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 538 transitions. [2024-09-12 18:35:29,748 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 538 transitions. Word has length 35 [2024-09-12 18:35:29,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:29,748 INFO L474 AbstractCegarLoop]: Abstraction has 443 states and 538 transitions. [2024-09-12 18:35:29,748 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:35:29,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:29,749 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 538 transitions. [2024-09-12 18:35:29,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 18:35:29,750 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:29,751 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:29,769 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:35:29,954 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:29,955 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:29,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:29,955 INFO L85 PathProgramCache]: Analyzing trace with hash -166607003, now seen corresponding path program 1 times [2024-09-12 18:35:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:29,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748386171] [2024-09-12 18:35:29,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:29,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261123319] [2024-09-12 18:35:29,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:29,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:29,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:29,974 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:29,976 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:35:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:30,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:35:30,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:30,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:35:30,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:35:30,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:30,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748386171] [2024-09-12 18:35:30,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:30,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261123319] [2024-09-12 18:35:30,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261123319] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:30,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:30,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:35:30,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916595954] [2024-09-12 18:35:30,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:30,154 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:35:30,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:30,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:35:30,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:35:30,156 INFO L87 Difference]: Start difference. First operand 443 states and 538 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:35:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:30,913 INFO L93 Difference]: Finished difference Result 519 states and 560 transitions. [2024-09-12 18:35:30,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:35:30,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-09-12 18:35:30,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:30,917 INFO L225 Difference]: With dead ends: 519 [2024-09-12 18:35:30,918 INFO L226 Difference]: Without dead ends: 494 [2024-09-12 18:35:30,918 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:35:30,919 INFO L434 NwaCegarLoop]: 212 mSDtfsCounter, 156 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:30,922 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 785 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:35:30,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-09-12 18:35:30,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 447. [2024-09-12 18:35:30,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 285 states have (on average 1.656140350877193) internal successors, (472), 417 states have internal predecessors, (472), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:35:30,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 518 transitions. [2024-09-12 18:35:30,964 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 518 transitions. Word has length 44 [2024-09-12 18:35:30,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:30,965 INFO L474 AbstractCegarLoop]: Abstraction has 447 states and 518 transitions. [2024-09-12 18:35:30,965 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:35:30,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:30,965 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 518 transitions. [2024-09-12 18:35:30,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:35:30,967 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:30,967 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:30,984 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 18:35:31,171 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:31,172 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:31,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:31,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1195375443, now seen corresponding path program 1 times [2024-09-12 18:35:31,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:31,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425232496] [2024-09-12 18:35:31,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:31,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:31,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544686745] [2024-09-12 18:35:31,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:31,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:31,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:31,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:31,192 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:35:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:31,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:35:31,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:35:31,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:35:31,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:31,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425232496] [2024-09-12 18:35:31,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:31,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544686745] [2024-09-12 18:35:31,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544686745] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:31,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:31,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:35:31,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723143840] [2024-09-12 18:35:31,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:31,321 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:35:31,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:31,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:35:31,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:31,322 INFO L87 Difference]: Start difference. First operand 447 states and 518 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:31,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:31,820 INFO L93 Difference]: Finished difference Result 498 states and 543 transitions. [2024-09-12 18:35:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:35:31,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-09-12 18:35:31,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:31,825 INFO L225 Difference]: With dead ends: 498 [2024-09-12 18:35:31,825 INFO L226 Difference]: Without dead ends: 464 [2024-09-12 18:35:31,827 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:31,828 INFO L434 NwaCegarLoop]: 185 mSDtfsCounter, 123 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:31,829 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 298 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:35:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-09-12 18:35:31,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 455. [2024-09-12 18:35:31,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 293 states have (on average 1.5494880546075085) internal successors, (454), 425 states have internal predecessors, (454), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:35:31,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 500 transitions. [2024-09-12 18:35:31,862 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 500 transitions. Word has length 46 [2024-09-12 18:35:31,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:31,862 INFO L474 AbstractCegarLoop]: Abstraction has 455 states and 500 transitions. [2024-09-12 18:35:31,862 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:31,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:31,863 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 500 transitions. [2024-09-12 18:35:31,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:35:31,864 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:31,865 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:31,882 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 18:35:32,065 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:35:32,066 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:32,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:32,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1697546639, now seen corresponding path program 1 times [2024-09-12 18:35:32,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:32,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361099742] [2024-09-12 18:35:32,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:32,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:32,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:32,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:32,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:32,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:32,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:32,194 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:35:32,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:32,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361099742] [2024-09-12 18:35:32,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361099742] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:32,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:32,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:35:32,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53865040] [2024-09-12 18:35:32,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:32,195 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:35:32,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:32,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:35:32,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:35:32,196 INFO L87 Difference]: Start difference. First operand 455 states and 500 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:33,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:33,505 INFO L93 Difference]: Finished difference Result 468 states and 509 transitions. [2024-09-12 18:35:33,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:35:33,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-09-12 18:35:33,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:33,508 INFO L225 Difference]: With dead ends: 468 [2024-09-12 18:35:33,508 INFO L226 Difference]: Without dead ends: 466 [2024-09-12 18:35:33,509 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:35:33,509 INFO L434 NwaCegarLoop]: 177 mSDtfsCounter, 255 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:33,509 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 387 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-09-12 18:35:33,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-09-12 18:35:33,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 455. [2024-09-12 18:35:33,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 293 states have (on average 1.5426621160409557) internal successors, (452), 425 states have internal predecessors, (452), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:35:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 498 transitions. [2024-09-12 18:35:33,545 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 498 transitions. Word has length 50 [2024-09-12 18:35:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:33,546 INFO L474 AbstractCegarLoop]: Abstraction has 455 states and 498 transitions. [2024-09-12 18:35:33,546 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:33,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:33,547 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 498 transitions. [2024-09-12 18:35:33,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 18:35:33,547 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:33,548 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:33,548 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:35:33,548 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:33,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:33,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1084338152, now seen corresponding path program 1 times [2024-09-12 18:35:33,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:33,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910527138] [2024-09-12 18:35:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:33,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:33,684 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:35:33,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:33,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910527138] [2024-09-12 18:35:33,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910527138] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:33,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:33,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:35:33,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852816813] [2024-09-12 18:35:33,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:33,685 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:35:33,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:33,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:35:33,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:35:33,686 INFO L87 Difference]: Start difference. First operand 455 states and 498 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:37,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:37,373 INFO L93 Difference]: Finished difference Result 468 states and 507 transitions. [2024-09-12 18:35:37,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:35:37,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2024-09-12 18:35:37,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:37,377 INFO L225 Difference]: With dead ends: 468 [2024-09-12 18:35:37,377 INFO L226 Difference]: Without dead ends: 466 [2024-09-12 18:35:37,377 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:35:37,378 INFO L434 NwaCegarLoop]: 179 mSDtfsCounter, 138 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:37,378 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 478 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-09-12 18:35:37,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-09-12 18:35:37,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 455. [2024-09-12 18:35:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 293 states have (on average 1.5358361774744027) internal successors, (450), 425 states have internal predecessors, (450), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:35:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 496 transitions. [2024-09-12 18:35:37,413 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 496 transitions. Word has length 51 [2024-09-12 18:35:37,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:37,414 INFO L474 AbstractCegarLoop]: Abstraction has 455 states and 496 transitions. [2024-09-12 18:35:37,414 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:37,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 496 transitions. [2024-09-12 18:35:37,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 18:35:37,416 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:37,416 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:37,416 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:35:37,416 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:37,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:37,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1068746699, now seen corresponding path program 1 times [2024-09-12 18:35:37,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:37,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580240860] [2024-09-12 18:35:37,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:37,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:37,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324177750] [2024-09-12 18:35:37,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:37,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:37,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:37,435 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:37,436 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:35:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:37,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:35:37,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:35:37,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:35:37,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:37,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580240860] [2024-09-12 18:35:37,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:37,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324177750] [2024-09-12 18:35:37,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324177750] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:37,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:37,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:35:37,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592272614] [2024-09-12 18:35:37,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:37,664 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:35:37,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:37,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:35:37,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:37,664 INFO L87 Difference]: Start difference. First operand 455 states and 496 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:38,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:38,193 INFO L93 Difference]: Finished difference Result 473 states and 505 transitions. [2024-09-12 18:35:38,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:35:38,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2024-09-12 18:35:38,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:38,196 INFO L225 Difference]: With dead ends: 473 [2024-09-12 18:35:38,196 INFO L226 Difference]: Without dead ends: 464 [2024-09-12 18:35:38,196 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:38,197 INFO L434 NwaCegarLoop]: 188 mSDtfsCounter, 113 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:38,197 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 277 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:35:38,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-09-12 18:35:38,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 458. [2024-09-12 18:35:38,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 296 states have (on average 1.510135135135135) internal successors, (447), 428 states have internal predecessors, (447), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:35:38,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 493 transitions. [2024-09-12 18:35:38,238 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 493 transitions. Word has length 54 [2024-09-12 18:35:38,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:38,239 INFO L474 AbstractCegarLoop]: Abstraction has 458 states and 493 transitions. [2024-09-12 18:35:38,239 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:38,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:38,239 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 493 transitions. [2024-09-12 18:35:38,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:35:38,240 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:38,240 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:38,258 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:35:38,440 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:38,441 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:38,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:38,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1228590812, now seen corresponding path program 1 times [2024-09-12 18:35:38,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:38,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235912552] [2024-09-12 18:35:38,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:38,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:38,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:38,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:38,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:38,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:38,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:38,554 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:35:38,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:38,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235912552] [2024-09-12 18:35:38,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235912552] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:38,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:38,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:35:38,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307594905] [2024-09-12 18:35:38,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:38,555 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:35:38,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:38,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:35:38,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:35:38,558 INFO L87 Difference]: Start difference. First operand 458 states and 493 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:39,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:39,485 INFO L93 Difference]: Finished difference Result 472 states and 496 transitions. [2024-09-12 18:35:39,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:35:39,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-09-12 18:35:39,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:39,488 INFO L225 Difference]: With dead ends: 472 [2024-09-12 18:35:39,488 INFO L226 Difference]: Without dead ends: 466 [2024-09-12 18:35:39,488 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:35:39,489 INFO L434 NwaCegarLoop]: 194 mSDtfsCounter, 134 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:39,489 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 414 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:35:39,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-09-12 18:35:39,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 458. [2024-09-12 18:35:39,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 296 states have (on average 1.489864864864865) internal successors, (441), 428 states have internal predecessors, (441), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:35:39,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 487 transitions. [2024-09-12 18:35:39,532 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 487 transitions. Word has length 55 [2024-09-12 18:35:39,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:39,532 INFO L474 AbstractCegarLoop]: Abstraction has 458 states and 487 transitions. [2024-09-12 18:35:39,532 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:39,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:39,533 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 487 transitions. [2024-09-12 18:35:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:35:39,534 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:39,534 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:39,534 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 18:35:39,534 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:39,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2138443168, now seen corresponding path program 1 times [2024-09-12 18:35:39,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:39,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601960051] [2024-09-12 18:35:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:39,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:39,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:35:39,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:39,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601960051] [2024-09-12 18:35:39,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601960051] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:39,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:39,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:35:39,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054394272] [2024-09-12 18:35:39,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:39,640 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:35:39,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:39,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:35:39,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:35:39,641 INFO L87 Difference]: Start difference. First operand 458 states and 487 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:40,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:40,466 INFO L93 Difference]: Finished difference Result 470 states and 490 transitions. [2024-09-12 18:35:40,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:35:40,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-09-12 18:35:40,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:40,469 INFO L225 Difference]: With dead ends: 470 [2024-09-12 18:35:40,469 INFO L226 Difference]: Without dead ends: 464 [2024-09-12 18:35:40,470 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:35:40,470 INFO L434 NwaCegarLoop]: 200 mSDtfsCounter, 228 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:40,471 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 289 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:35:40,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-09-12 18:35:40,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 459. [2024-09-12 18:35:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 297 states have (on average 1.4713804713804715) internal successors, (437), 429 states have internal predecessors, (437), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:35:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 483 transitions. [2024-09-12 18:35:40,511 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 483 transitions. Word has length 59 [2024-09-12 18:35:40,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:40,512 INFO L474 AbstractCegarLoop]: Abstraction has 459 states and 483 transitions. [2024-09-12 18:35:40,512 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:40,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:40,512 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 483 transitions. [2024-09-12 18:35:40,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:35:40,514 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:40,514 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:40,514 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 18:35:40,514 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:40,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:40,515 INFO L85 PathProgramCache]: Analyzing trace with hash 693285102, now seen corresponding path program 1 times [2024-09-12 18:35:40,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:40,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634418836] [2024-09-12 18:35:40,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:40,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:40,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883814596] [2024-09-12 18:35:40,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:40,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:40,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:40,533 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:40,535 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:35:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:40,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:35:40,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:35:40,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:35:40,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:40,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634418836] [2024-09-12 18:35:40,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:40,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883814596] [2024-09-12 18:35:40,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883814596] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:40,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:40,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:35:40,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742182727] [2024-09-12 18:35:40,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:40,794 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:35:40,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:40,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:35:40,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:35:40,795 INFO L87 Difference]: Start difference. First operand 459 states and 483 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:41,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:41,629 INFO L93 Difference]: Finished difference Result 474 states and 492 transitions. [2024-09-12 18:35:41,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:35:41,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 65 [2024-09-12 18:35:41,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:41,633 INFO L225 Difference]: With dead ends: 474 [2024-09-12 18:35:41,633 INFO L226 Difference]: Without dead ends: 404 [2024-09-12 18:35:41,633 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:35:41,634 INFO L434 NwaCegarLoop]: 195 mSDtfsCounter, 108 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:41,634 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 659 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:35:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-09-12 18:35:41,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 400. [2024-09-12 18:35:41,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 239 states have (on average 1.5815899581589958) internal successors, (378), 371 states have internal predecessors, (378), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:35:41,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 418 transitions. [2024-09-12 18:35:41,664 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 418 transitions. Word has length 65 [2024-09-12 18:35:41,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:41,664 INFO L474 AbstractCegarLoop]: Abstraction has 400 states and 418 transitions. [2024-09-12 18:35:41,664 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:35:41,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:41,664 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 418 transitions. [2024-09-12 18:35:41,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 18:35:41,666 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:41,666 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:41,683 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:41,870 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 18:35:41,871 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:41,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:41,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1479527842, now seen corresponding path program 1 times [2024-09-12 18:35:41,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:41,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859328817] [2024-09-12 18:35:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:41,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:41,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:41,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:41,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:41,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:41,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:41,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:35:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:41,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:35:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:35:41,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:41,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859328817] [2024-09-12 18:35:41,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859328817] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:41,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:41,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:35:41,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617298118] [2024-09-12 18:35:41,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:41,953 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:35:41,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:41,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:35:41,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:41,954 INFO L87 Difference]: Start difference. First operand 400 states and 418 transitions. Second operand has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:35:42,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:42,534 INFO L93 Difference]: Finished difference Result 400 states and 418 transitions. [2024-09-12 18:35:42,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:35:42,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2024-09-12 18:35:42,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:42,537 INFO L225 Difference]: With dead ends: 400 [2024-09-12 18:35:42,537 INFO L226 Difference]: Without dead ends: 393 [2024-09-12 18:35:42,537 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:42,537 INFO L434 NwaCegarLoop]: 150 mSDtfsCounter, 139 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:42,538 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 174 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:35:42,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-09-12 18:35:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-09-12 18:35:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 239 states have (on average 1.5523012552301256) internal successors, (371), 364 states have internal predecessors, (371), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:35:42,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 411 transitions. [2024-09-12 18:35:42,564 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 411 transitions. Word has length 91 [2024-09-12 18:35:42,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:42,564 INFO L474 AbstractCegarLoop]: Abstraction has 393 states and 411 transitions. [2024-09-12 18:35:42,565 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:35:42,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 411 transitions. [2024-09-12 18:35:42,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-09-12 18:35:42,566 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:42,566 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:42,566 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 18:35:42,566 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:42,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:42,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1379276982, now seen corresponding path program 1 times [2024-09-12 18:35:42,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:42,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089573827] [2024-09-12 18:35:42,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:42,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:42,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:42,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:42,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:42,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:42,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:42,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:35:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:42,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:35:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:35:42,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:42,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089573827] [2024-09-12 18:35:42,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089573827] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:42,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:42,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:35:42,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058333048] [2024-09-12 18:35:42,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:42,652 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:35:42,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:42,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:35:42,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:42,653 INFO L87 Difference]: Start difference. First operand 393 states and 411 transitions. Second operand has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:35:43,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:43,167 INFO L93 Difference]: Finished difference Result 400 states and 414 transitions. [2024-09-12 18:35:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:35:43,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 92 [2024-09-12 18:35:43,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:43,170 INFO L225 Difference]: With dead ends: 400 [2024-09-12 18:35:43,171 INFO L226 Difference]: Without dead ends: 399 [2024-09-12 18:35:43,171 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:43,172 INFO L434 NwaCegarLoop]: 265 mSDtfsCounter, 24 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:43,172 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 413 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:35:43,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-09-12 18:35:43,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 395. [2024-09-12 18:35:43,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 241 states have (on average 1.5477178423236515) internal successors, (373), 366 states have internal predecessors, (373), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:35:43,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 413 transitions. [2024-09-12 18:35:43,197 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 413 transitions. Word has length 92 [2024-09-12 18:35:43,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:43,197 INFO L474 AbstractCegarLoop]: Abstraction has 395 states and 413 transitions. [2024-09-12 18:35:43,198 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:35:43,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:43,198 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 413 transitions. [2024-09-12 18:35:43,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 18:35:43,199 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:43,199 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:43,199 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:35:43,199 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:43,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:43,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1953147785, now seen corresponding path program 1 times [2024-09-12 18:35:43,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:43,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741878472] [2024-09-12 18:35:43,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:43,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:35:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:35:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:35:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,298 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:35:43,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:43,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741878472] [2024-09-12 18:35:43,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741878472] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:43,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:43,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:35:43,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720243388] [2024-09-12 18:35:43,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:43,299 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:35:43,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:43,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:35:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:43,299 INFO L87 Difference]: Start difference. First operand 395 states and 413 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:35:43,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:43,573 INFO L93 Difference]: Finished difference Result 395 states and 413 transitions. [2024-09-12 18:35:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:35:43,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2024-09-12 18:35:43,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:43,577 INFO L225 Difference]: With dead ends: 395 [2024-09-12 18:35:43,577 INFO L226 Difference]: Without dead ends: 393 [2024-09-12 18:35:43,577 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:35:43,583 INFO L434 NwaCegarLoop]: 259 mSDtfsCounter, 193 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:43,583 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 282 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:35:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-09-12 18:35:43,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-09-12 18:35:43,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 241 states have (on average 1.5311203319502074) internal successors, (369), 364 states have internal predecessors, (369), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:35:43,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 409 transitions. [2024-09-12 18:35:43,616 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 409 transitions. Word has length 94 [2024-09-12 18:35:43,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:43,617 INFO L474 AbstractCegarLoop]: Abstraction has 393 states and 409 transitions. [2024-09-12 18:35:43,617 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:35:43,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:43,618 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 409 transitions. [2024-09-12 18:35:43,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:35:43,618 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:43,618 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:43,619 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:35:43,619 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:43,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:43,619 INFO L85 PathProgramCache]: Analyzing trace with hash 418039379, now seen corresponding path program 1 times [2024-09-12 18:35:43,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:43,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850660698] [2024-09-12 18:35:43,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:43,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:35:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:35:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:35:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:35:43,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:43,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850660698] [2024-09-12 18:35:43,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850660698] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:43,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:43,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:35:43,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033643183] [2024-09-12 18:35:43,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:43,712 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:35:43,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:43,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:35:43,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:35:43,713 INFO L87 Difference]: Start difference. First operand 393 states and 409 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:35:44,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:44,184 INFO L93 Difference]: Finished difference Result 397 states and 409 transitions. [2024-09-12 18:35:44,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:35:44,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2024-09-12 18:35:44,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:44,190 INFO L225 Difference]: With dead ends: 397 [2024-09-12 18:35:44,190 INFO L226 Difference]: Without dead ends: 393 [2024-09-12 18:35:44,190 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:35:44,191 INFO L434 NwaCegarLoop]: 260 mSDtfsCounter, 19 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:44,191 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 957 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:35:44,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-09-12 18:35:44,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 391. [2024-09-12 18:35:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 239 states have (on average 1.5271966527196652) internal successors, (365), 362 states have internal predecessors, (365), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:35:44,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 405 transitions. [2024-09-12 18:35:44,231 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 405 transitions. Word has length 95 [2024-09-12 18:35:44,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:44,232 INFO L474 AbstractCegarLoop]: Abstraction has 391 states and 405 transitions. [2024-09-12 18:35:44,232 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:35:44,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:44,233 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 405 transitions. [2024-09-12 18:35:44,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 18:35:44,234 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:44,235 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:44,235 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:35:44,235 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:44,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:44,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1659716492, now seen corresponding path program 1 times [2024-09-12 18:35:44,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:44,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569338203] [2024-09-12 18:35:44,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:44,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:35:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:35:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,324 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:35:44,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:44,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569338203] [2024-09-12 18:35:44,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569338203] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:44,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114392864] [2024-09-12 18:35:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:44,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:44,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:44,327 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:44,328 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:35:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:35:44,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:44,460 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:35:44,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:35:44,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114392864] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:44,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:35:44,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 18:35:44,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744855817] [2024-09-12 18:35:44,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:44,461 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:35:44,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:44,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:35:44,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:35:44,463 INFO L87 Difference]: Start difference. First operand 391 states and 405 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:35:44,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:44,608 INFO L93 Difference]: Finished difference Result 393 states and 405 transitions. [2024-09-12 18:35:44,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:35:44,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 94 [2024-09-12 18:35:44,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:44,611 INFO L225 Difference]: With dead ends: 393 [2024-09-12 18:35:44,611 INFO L226 Difference]: Without dead ends: 385 [2024-09-12 18:35:44,612 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:35:44,612 INFO L434 NwaCegarLoop]: 311 mSDtfsCounter, 255 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:44,613 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 417 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:35:44,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-09-12 18:35:44,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 383. [2024-09-12 18:35:44,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 239 states have (on average 1.493723849372385) internal successors, (357), 354 states have internal predecessors, (357), 21 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:35:44,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 397 transitions. [2024-09-12 18:35:44,656 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 397 transitions. Word has length 94 [2024-09-12 18:35:44,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:44,656 INFO L474 AbstractCegarLoop]: Abstraction has 383 states and 397 transitions. [2024-09-12 18:35:44,656 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:35:44,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:44,657 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 397 transitions. [2024-09-12 18:35:44,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:35:44,658 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:44,658 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:44,676 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:44,862 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:35:44,863 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:44,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:44,863 INFO L85 PathProgramCache]: Analyzing trace with hash -88396242, now seen corresponding path program 1 times [2024-09-12 18:35:44,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:44,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955712660] [2024-09-12 18:35:44,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:44,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:35:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:35:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:35:44,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:44,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955712660] [2024-09-12 18:35:44,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955712660] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:44,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689399886] [2024-09-12 18:35:44,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:44,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:44,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:44,962 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:44,964 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:35:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:45,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:35:45,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:45,092 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:35:45,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:35:45,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689399886] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:45,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:35:45,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 18:35:45,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294037487] [2024-09-12 18:35:45,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:45,223 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:35:45,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:45,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:35:45,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:35:45,223 INFO L87 Difference]: Start difference. First operand 383 states and 397 transitions. Second operand has 7 states, 6 states have (on average 29.833333333333332) internal successors, (179), 7 states have internal predecessors, (179), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-09-12 18:35:45,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:45,441 INFO L93 Difference]: Finished difference Result 645 states and 680 transitions. [2024-09-12 18:35:45,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:35:45,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 29.833333333333332) internal successors, (179), 7 states have internal predecessors, (179), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 95 [2024-09-12 18:35:45,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:45,446 INFO L225 Difference]: With dead ends: 645 [2024-09-12 18:35:45,446 INFO L226 Difference]: Without dead ends: 637 [2024-09-12 18:35:45,447 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:35:45,447 INFO L434 NwaCegarLoop]: 253 mSDtfsCounter, 839 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:45,447 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 747 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:35:45,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-09-12 18:35:45,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 443. [2024-09-12 18:35:45,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 300 states have (on average 1.49) internal successors, (447), 409 states have internal predecessors, (447), 26 states have call successors, (26), 9 states have call predecessors, (26), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:35:45,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 497 transitions. [2024-09-12 18:35:45,500 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 497 transitions. Word has length 95 [2024-09-12 18:35:45,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:45,501 INFO L474 AbstractCegarLoop]: Abstraction has 443 states and 497 transitions. [2024-09-12 18:35:45,501 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 29.833333333333332) internal successors, (179), 7 states have internal predecessors, (179), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-09-12 18:35:45,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:45,501 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 497 transitions. [2024-09-12 18:35:45,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 18:35:45,502 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:45,503 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:45,520 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 18:35:45,703 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:35:45,704 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:45,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:45,704 INFO L85 PathProgramCache]: Analyzing trace with hash 217636066, now seen corresponding path program 1 times [2024-09-12 18:35:45,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:45,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963641029] [2024-09-12 18:35:45,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:45,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:45,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:45,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:45,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:45,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:45,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:45,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:35:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:45,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:35:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:45,924 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:35:45,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:45,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963641029] [2024-09-12 18:35:45,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963641029] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:45,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312251458] [2024-09-12 18:35:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:45,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:45,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:45,927 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:45,930 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:35:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:45,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:35:45,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:46,217 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:35:46,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-12 18:35:46,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312251458] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:35:46,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:46,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 11 [2024-09-12 18:35:46,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680918787] [2024-09-12 18:35:46,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:46,356 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:35:46,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:46,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:35:46,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:35:46,357 INFO L87 Difference]: Start difference. First operand 443 states and 497 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:35:50,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:50,040 INFO L93 Difference]: Finished difference Result 449 states and 502 transitions. [2024-09-12 18:35:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:35:50,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 101 [2024-09-12 18:35:50,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:50,044 INFO L225 Difference]: With dead ends: 449 [2024-09-12 18:35:50,044 INFO L226 Difference]: Without dead ends: 447 [2024-09-12 18:35:50,044 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:35:50,045 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 119 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:50,046 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 393 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-09-12 18:35:50,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2024-09-12 18:35:50,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2024-09-12 18:35:50,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 303 states have (on average 1.4851485148514851) internal successors, (450), 412 states have internal predecessors, (450), 26 states have call successors, (26), 10 states have call predecessors, (26), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:35:50,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 500 transitions. [2024-09-12 18:35:50,110 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 500 transitions. Word has length 101 [2024-09-12 18:35:50,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:50,110 INFO L474 AbstractCegarLoop]: Abstraction has 447 states and 500 transitions. [2024-09-12 18:35:50,110 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:35:50,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:50,111 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 500 transitions. [2024-09-12 18:35:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-12 18:35:50,112 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:50,112 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:50,130 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:35:50,316 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:50,317 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:50,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:50,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1571222485, now seen corresponding path program 1 times [2024-09-12 18:35:50,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:50,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923458130] [2024-09-12 18:35:50,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:50,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:50,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254244685] [2024-09-12 18:35:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:50,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:50,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:50,342 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:50,344 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:35:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:50,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:35:50,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:50,498 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:35:50,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:35:50,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:50,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923458130] [2024-09-12 18:35:50,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:50,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254244685] [2024-09-12 18:35:50,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254244685] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:50,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:50,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 18:35:50,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499192868] [2024-09-12 18:35:50,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:50,696 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:35:50,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:50,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:35:50,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:35:50,698 INFO L87 Difference]: Start difference. First operand 447 states and 500 transitions. Second operand has 6 states, 5 states have (on average 28.0) internal successors, (140), 6 states have internal predecessors, (140), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:35:50,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:50,995 INFO L93 Difference]: Finished difference Result 651 states and 679 transitions. [2024-09-12 18:35:50,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:35:50,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.0) internal successors, (140), 6 states have internal predecessors, (140), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 106 [2024-09-12 18:35:50,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:51,000 INFO L225 Difference]: With dead ends: 651 [2024-09-12 18:35:51,001 INFO L226 Difference]: Without dead ends: 646 [2024-09-12 18:35:51,001 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:35:51,002 INFO L434 NwaCegarLoop]: 311 mSDtfsCounter, 674 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:51,003 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 881 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:35:51,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-09-12 18:35:51,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 452. [2024-09-12 18:35:51,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 311 states have (on average 1.4469453376205788) internal successors, (450), 416 states have internal predecessors, (450), 27 states have call successors, (27), 10 states have call predecessors, (27), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:35:51,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 502 transitions. [2024-09-12 18:35:51,091 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 502 transitions. Word has length 106 [2024-09-12 18:35:51,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:51,092 INFO L474 AbstractCegarLoop]: Abstraction has 452 states and 502 transitions. [2024-09-12 18:35:51,092 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.0) internal successors, (140), 6 states have internal predecessors, (140), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:35:51,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:51,092 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 502 transitions. [2024-09-12 18:35:51,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 18:35:51,094 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:51,094 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:51,113 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:51,298 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:51,299 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr70ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:51,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:51,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2115550921, now seen corresponding path program 1 times [2024-09-12 18:35:51,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:51,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513043904] [2024-09-12 18:35:51,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:51,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:51,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:35:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:51,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:35:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:51,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:35:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:51,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:35:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:51,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:35:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:51,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:35:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:51,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:35:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:51,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:35:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:51,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:35:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:35:51,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:51,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513043904] [2024-09-12 18:35:51,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513043904] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:35:51,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:35:51,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:35:51,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604001458] [2024-09-12 18:35:51,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:35:51,485 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:35:51,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:51,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:35:51,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:35:51,486 INFO L87 Difference]: Start difference. First operand 452 states and 502 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:35:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:51,959 INFO L93 Difference]: Finished difference Result 458 states and 505 transitions. [2024-09-12 18:35:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:35:51,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 111 [2024-09-12 18:35:51,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:51,962 INFO L225 Difference]: With dead ends: 458 [2024-09-12 18:35:51,962 INFO L226 Difference]: Without dead ends: 428 [2024-09-12 18:35:51,962 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:35:51,963 INFO L434 NwaCegarLoop]: 219 mSDtfsCounter, 230 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:51,964 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 875 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:35:51,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-09-12 18:35:52,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2024-09-12 18:35:52,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 290 states have (on average 1.4724137931034482) internal successors, (427), 395 states have internal predecessors, (427), 25 states have call successors, (25), 9 states have call predecessors, (25), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:35:52,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 475 transitions. [2024-09-12 18:35:52,054 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 475 transitions. Word has length 111 [2024-09-12 18:35:52,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:52,055 INFO L474 AbstractCegarLoop]: Abstraction has 428 states and 475 transitions. [2024-09-12 18:35:52,055 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:35:52,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:52,055 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 475 transitions. [2024-09-12 18:35:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 18:35:52,056 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:52,057 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:52,057 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 18:35:52,057 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:52,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:52,057 INFO L85 PathProgramCache]: Analyzing trace with hash 945332587, now seen corresponding path program 2 times [2024-09-12 18:35:52,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:52,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728721129] [2024-09-12 18:35:52,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:52,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:52,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123348905] [2024-09-12 18:35:52,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:35:52,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:52,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:52,082 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:52,084 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:35:52,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:35:52,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:35:52,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:35:52,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:52,579 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:35:52,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:52,884 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 17 proven. 27 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:35:52,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:52,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728721129] [2024-09-12 18:35:52,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:52,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123348905] [2024-09-12 18:35:52,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123348905] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:52,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:52,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2024-09-12 18:35:52,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870166649] [2024-09-12 18:35:52,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:52,886 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:35:52,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:52,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:35:52,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:35:52,887 INFO L87 Difference]: Start difference. First operand 428 states and 475 transitions. Second operand has 16 states, 16 states have (on average 10.125) internal successors, (162), 15 states have internal predecessors, (162), 6 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:35:54,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:54,817 INFO L93 Difference]: Finished difference Result 582 states and 653 transitions. [2024-09-12 18:35:54,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:35:54,819 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 15 states have internal predecessors, (162), 6 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 116 [2024-09-12 18:35:54,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:54,822 INFO L225 Difference]: With dead ends: 582 [2024-09-12 18:35:54,822 INFO L226 Difference]: Without dead ends: 540 [2024-09-12 18:35:54,823 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:35:54,825 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 653 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:54,826 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 438 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1856 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-09-12 18:35:54,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-09-12 18:35:54,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 509. [2024-09-12 18:35:54,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 379 states have (on average 1.3931398416886545) internal successors, (528), 468 states have internal predecessors, (528), 30 states have call successors, (30), 12 states have call predecessors, (30), 11 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:35:54,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 586 transitions. [2024-09-12 18:35:54,961 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 586 transitions. Word has length 116 [2024-09-12 18:35:54,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:54,961 INFO L474 AbstractCegarLoop]: Abstraction has 509 states and 586 transitions. [2024-09-12 18:35:54,962 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 15 states have internal predecessors, (162), 6 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:35:54,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:54,962 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 586 transitions. [2024-09-12 18:35:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-09-12 18:35:54,963 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:54,963 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:54,980 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:55,167 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 18:35:55,168 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:55,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:55,169 INFO L85 PathProgramCache]: Analyzing trace with hash -693483940, now seen corresponding path program 3 times [2024-09-12 18:35:55,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:55,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928624507] [2024-09-12 18:35:55,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:55,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:55,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435512204] [2024-09-12 18:35:55,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:35:55,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:55,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:55,195 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:55,197 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:35:55,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:35:55,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:35:55,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:35:55,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:35:55,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:35:55,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:55,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928624507] [2024-09-12 18:35:55,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:55,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435512204] [2024-09-12 18:35:55,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435512204] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:55,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:55,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-09-12 18:35:55,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049418526] [2024-09-12 18:35:55,822 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:55,823 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:35:55,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:55,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:35:55,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:35:55,824 INFO L87 Difference]: Start difference. First operand 509 states and 586 transitions. Second operand has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 5 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 18:35:56,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:35:56,552 INFO L93 Difference]: Finished difference Result 544 states and 600 transitions. [2024-09-12 18:35:56,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:35:56,553 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 5 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 125 [2024-09-12 18:35:56,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:35:56,556 INFO L225 Difference]: With dead ends: 544 [2024-09-12 18:35:56,556 INFO L226 Difference]: Without dead ends: 530 [2024-09-12 18:35:56,556 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:35:56,557 INFO L434 NwaCegarLoop]: 172 mSDtfsCounter, 260 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:35:56,557 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 870 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:35:56,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-09-12 18:35:56,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 513. [2024-09-12 18:35:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 382 states have (on average 1.3586387434554974) internal successors, (519), 471 states have internal predecessors, (519), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:35:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 577 transitions. [2024-09-12 18:35:56,674 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 577 transitions. Word has length 125 [2024-09-12 18:35:56,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:35:56,675 INFO L474 AbstractCegarLoop]: Abstraction has 513 states and 577 transitions. [2024-09-12 18:35:56,675 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 5 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 18:35:56,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:56,675 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 577 transitions. [2024-09-12 18:35:56,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-09-12 18:35:56,676 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:35:56,677 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:35:56,693 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 18:35:56,892 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:56,893 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:35:56,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:35:56,893 INFO L85 PathProgramCache]: Analyzing trace with hash 79079464, now seen corresponding path program 1 times [2024-09-12 18:35:56,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:35:56,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705682804] [2024-09-12 18:35:56,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:56,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:35:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:35:56,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560485245] [2024-09-12 18:35:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:35:56,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:35:56,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:35:56,914 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:35:56,915 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 18:35:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:35:56,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:35:56,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:35:57,350 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:35:57,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:35:57,608 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:35:57,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:35:57,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705682804] [2024-09-12 18:35:57,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:35:57,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560485245] [2024-09-12 18:35:57,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560485245] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:35:57,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:35:57,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 18:35:57,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864539542] [2024-09-12 18:35:57,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:35:57,610 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:35:57,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:35:57,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:35:57,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:35:57,611 INFO L87 Difference]: Start difference. First operand 513 states and 577 transitions. Second operand has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 10 states have internal predecessors, (170), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:36:02,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:02,675 INFO L93 Difference]: Finished difference Result 552 states and 586 transitions. [2024-09-12 18:36:02,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:36:02,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 10 states have internal predecessors, (170), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 131 [2024-09-12 18:36:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:02,678 INFO L225 Difference]: With dead ends: 552 [2024-09-12 18:36:02,679 INFO L226 Difference]: Without dead ends: 522 [2024-09-12 18:36:02,679 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:36:02,680 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 755 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:02,681 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 506 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-09-12 18:36:02,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-09-12 18:36:02,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 515. [2024-09-12 18:36:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 386 states have (on average 1.282383419689119) internal successors, (495), 473 states have internal predecessors, (495), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:36:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 553 transitions. [2024-09-12 18:36:02,838 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 553 transitions. Word has length 131 [2024-09-12 18:36:02,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:02,838 INFO L474 AbstractCegarLoop]: Abstraction has 515 states and 553 transitions. [2024-09-12 18:36:02,838 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 10 states have internal predecessors, (170), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:36:02,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:02,839 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 553 transitions. [2024-09-12 18:36:02,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-12 18:36:02,840 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:02,841 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:02,859 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:03,041 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 18:36:03,042 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:03,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:03,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1264844201, now seen corresponding path program 4 times [2024-09-12 18:36:03,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:03,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687719382] [2024-09-12 18:36:03,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:03,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:03,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506371629] [2024-09-12 18:36:03,065 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:36:03,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:03,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:03,067 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:03,068 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 18:36:03,134 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:36:03,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:36:03,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:36:03,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:03,652 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 16 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:36:03,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:04,217 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 16 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:36:04,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:04,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687719382] [2024-09-12 18:36:04,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:04,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506371629] [2024-09-12 18:36:04,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506371629] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:04,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:36:04,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2024-09-12 18:36:04,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241278123] [2024-09-12 18:36:04,218 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:04,218 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:36:04,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:04,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:36:04,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:36:04,219 INFO L87 Difference]: Start difference. First operand 515 states and 553 transitions. Second operand has 13 states, 13 states have (on average 15.0) internal successors, (195), 12 states have internal predecessors, (195), 5 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:36:11,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:11,132 INFO L93 Difference]: Finished difference Result 672 states and 788 transitions. [2024-09-12 18:36:11,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:36:11,133 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 15.0) internal successors, (195), 12 states have internal predecessors, (195), 5 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 146 [2024-09-12 18:36:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:11,136 INFO L225 Difference]: With dead ends: 672 [2024-09-12 18:36:11,137 INFO L226 Difference]: Without dead ends: 602 [2024-09-12 18:36:11,137 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 278 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:36:11,138 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 210 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 2400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:11,138 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 647 Invalid, 2400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-09-12 18:36:11,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-09-12 18:36:11,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 593. [2024-09-12 18:36:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 455 states have (on average 1.4) internal successors, (637), 543 states have internal predecessors, (637), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:11,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 708 transitions. [2024-09-12 18:36:11,304 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 708 transitions. Word has length 146 [2024-09-12 18:36:11,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:11,305 INFO L474 AbstractCegarLoop]: Abstraction has 593 states and 708 transitions. [2024-09-12 18:36:11,305 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.0) internal successors, (195), 12 states have internal predecessors, (195), 5 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:36:11,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:11,305 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 708 transitions. [2024-09-12 18:36:11,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-09-12 18:36:11,307 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:11,307 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:11,324 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 18:36:11,507 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:36:11,508 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:11,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:11,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1257085631, now seen corresponding path program 1 times [2024-09-12 18:36:11,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:11,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412026365] [2024-09-12 18:36:11,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:11,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:36:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:36:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:36:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:36:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:36:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:11,608 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-09-12 18:36:11,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:11,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412026365] [2024-09-12 18:36:11,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412026365] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:11,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:11,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:36:11,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021268710] [2024-09-12 18:36:11,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:11,609 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:36:11,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:11,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:36:11,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:36:11,611 INFO L87 Difference]: Start difference. First operand 593 states and 708 transitions. Second operand has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:36:12,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:12,248 INFO L93 Difference]: Finished difference Result 593 states and 708 transitions. [2024-09-12 18:36:12,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:36:12,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 171 [2024-09-12 18:36:12,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:12,250 INFO L225 Difference]: With dead ends: 593 [2024-09-12 18:36:12,250 INFO L226 Difference]: Without dead ends: 584 [2024-09-12 18:36:12,251 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:36:12,251 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 294 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:12,251 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 210 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:36:12,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-09-12 18:36:12,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2024-09-12 18:36:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 455 states have (on average 1.3604395604395605) internal successors, (619), 534 states have internal predecessors, (619), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:12,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 690 transitions. [2024-09-12 18:36:12,467 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 690 transitions. Word has length 171 [2024-09-12 18:36:12,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:12,468 INFO L474 AbstractCegarLoop]: Abstraction has 584 states and 690 transitions. [2024-09-12 18:36:12,468 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.0) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:36:12,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:12,468 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 690 transitions. [2024-09-12 18:36:12,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-09-12 18:36:12,469 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:12,470 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:12,470 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-09-12 18:36:12,470 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:12,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:12,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1173486657, now seen corresponding path program 1 times [2024-09-12 18:36:12,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:12,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365155538] [2024-09-12 18:36:12,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:12,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:36:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:36:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:36:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:36:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:36:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-09-12 18:36:12,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:12,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365155538] [2024-09-12 18:36:12,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365155538] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:36:12,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:36:12,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:36:12,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103335241] [2024-09-12 18:36:12,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:36:12,537 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:36:12,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:12,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:36:12,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:12,538 INFO L87 Difference]: Start difference. First operand 584 states and 690 transitions. Second operand has 3 states, 2 states have (on average 45.5) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:36:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:13,222 INFO L93 Difference]: Finished difference Result 584 states and 690 transitions. [2024-09-12 18:36:13,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:36:13,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 45.5) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 173 [2024-09-12 18:36:13,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:13,225 INFO L225 Difference]: With dead ends: 584 [2024-09-12 18:36:13,225 INFO L226 Difference]: Without dead ends: 579 [2024-09-12 18:36:13,226 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:36:13,226 INFO L434 NwaCegarLoop]: 123 mSDtfsCounter, 130 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:13,227 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 178 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:36:13,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-09-12 18:36:13,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-09-12 18:36:13,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 453 states have (on average 1.34878587196468) internal successors, (611), 529 states have internal predecessors, (611), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:13,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 682 transitions. [2024-09-12 18:36:13,446 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 682 transitions. Word has length 173 [2024-09-12 18:36:13,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:13,447 INFO L474 AbstractCegarLoop]: Abstraction has 579 states and 682 transitions. [2024-09-12 18:36:13,447 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 45.5) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:36:13,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:13,447 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 682 transitions. [2024-09-12 18:36:13,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-09-12 18:36:13,448 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:13,449 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:13,449 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-09-12 18:36:13,449 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:13,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:13,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1186301444, now seen corresponding path program 1 times [2024-09-12 18:36:13,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:13,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046929879] [2024-09-12 18:36:13,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:13,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:36:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:36:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:36:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:36:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:36:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 18:36:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,612 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:36:13,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:13,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046929879] [2024-09-12 18:36:13,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046929879] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:13,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031853659] [2024-09-12 18:36:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:13,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:13,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:13,615 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:13,619 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 18:36:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:13,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:36:13,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:13,849 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:36:13,850 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:36:14,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031853659] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:14,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:36:14,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-09-12 18:36:14,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768483825] [2024-09-12 18:36:14,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:14,029 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:36:14,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:14,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:36:14,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:36:14,030 INFO L87 Difference]: Start difference. First operand 579 states and 682 transitions. Second operand has 9 states, 8 states have (on average 35.125) internal successors, (281), 9 states have internal predecessors, (281), 8 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 8 states have call predecessors, (29), 8 states have call successors, (29) [2024-09-12 18:36:14,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:14,602 INFO L93 Difference]: Finished difference Result 595 states and 682 transitions. [2024-09-12 18:36:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:36:14,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 35.125) internal successors, (281), 9 states have internal predecessors, (281), 8 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 8 states have call predecessors, (29), 8 states have call successors, (29) Word has length 176 [2024-09-12 18:36:14,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:14,606 INFO L225 Difference]: With dead ends: 595 [2024-09-12 18:36:14,606 INFO L226 Difference]: Without dead ends: 593 [2024-09-12 18:36:14,606 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:36:14,607 INFO L434 NwaCegarLoop]: 185 mSDtfsCounter, 563 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:14,607 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 697 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:36:14,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-09-12 18:36:14,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 577. [2024-09-12 18:36:14,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 453 states have (on average 1.335540838852097) internal successors, (605), 527 states have internal predecessors, (605), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:14,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 676 transitions. [2024-09-12 18:36:14,860 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 676 transitions. Word has length 176 [2024-09-12 18:36:14,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:14,861 INFO L474 AbstractCegarLoop]: Abstraction has 577 states and 676 transitions. [2024-09-12 18:36:14,861 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 35.125) internal successors, (281), 9 states have internal predecessors, (281), 8 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 8 states have call predecessors, (29), 8 states have call successors, (29) [2024-09-12 18:36:14,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:14,861 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 676 transitions. [2024-09-12 18:36:14,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-09-12 18:36:14,863 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:14,863 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:14,881 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:15,063 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:36:15,064 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:15,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:15,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1879361090, now seen corresponding path program 1 times [2024-09-12 18:36:15,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:15,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309266483] [2024-09-12 18:36:15,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:15,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:15,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [971184545] [2024-09-12 18:36:15,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:15,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:15,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:15,093 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:15,094 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 18:36:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:15,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:36:15,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:36:15,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:16,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:16,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309266483] [2024-09-12 18:36:16,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:16,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971184545] [2024-09-12 18:36:16,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971184545] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:16,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:36:16,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:36:16,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588757157] [2024-09-12 18:36:16,473 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:16,474 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:36:16,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:16,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:36:16,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:36:16,474 INFO L87 Difference]: Start difference. First operand 577 states and 676 transitions. Second operand has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:36:17,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:17,522 INFO L93 Difference]: Finished difference Result 578 states and 676 transitions. [2024-09-12 18:36:17,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:36:17,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 177 [2024-09-12 18:36:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:17,525 INFO L225 Difference]: With dead ends: 578 [2024-09-12 18:36:17,525 INFO L226 Difference]: Without dead ends: 577 [2024-09-12 18:36:17,525 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:36:17,526 INFO L434 NwaCegarLoop]: 211 mSDtfsCounter, 35 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:17,526 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 453 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:36:17,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-09-12 18:36:17,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2024-09-12 18:36:17,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 453 states have (on average 1.3333333333333333) internal successors, (604), 527 states have internal predecessors, (604), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:17,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 675 transitions. [2024-09-12 18:36:17,712 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 675 transitions. Word has length 177 [2024-09-12 18:36:17,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:17,713 INFO L474 AbstractCegarLoop]: Abstraction has 577 states and 675 transitions. [2024-09-12 18:36:17,713 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:36:17,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:17,713 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 675 transitions. [2024-09-12 18:36:17,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-09-12 18:36:17,715 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:17,715 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:17,733 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 18:36:17,918 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:36:17,919 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:17,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:17,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1869348162, now seen corresponding path program 1 times [2024-09-12 18:36:17,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:17,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646535899] [2024-09-12 18:36:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:17,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:17,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2008257539] [2024-09-12 18:36:17,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:17,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:17,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:17,944 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:17,945 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 18:36:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:18,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:36:18,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:36:18,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:18,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:18,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646535899] [2024-09-12 18:36:18,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:18,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008257539] [2024-09-12 18:36:18,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008257539] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:18,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:36:18,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:36:18,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694783811] [2024-09-12 18:36:18,842 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:18,842 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:36:18,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:18,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:36:18,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:36:18,844 INFO L87 Difference]: Start difference. First operand 577 states and 675 transitions. Second operand has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:36:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:19,954 INFO L93 Difference]: Finished difference Result 588 states and 675 transitions. [2024-09-12 18:36:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:36:19,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 178 [2024-09-12 18:36:19,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:19,956 INFO L225 Difference]: With dead ends: 588 [2024-09-12 18:36:19,956 INFO L226 Difference]: Without dead ends: 587 [2024-09-12 18:36:19,957 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:36:19,957 INFO L434 NwaCegarLoop]: 188 mSDtfsCounter, 71 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:19,957 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 534 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:36:19,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-09-12 18:36:20,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 577. [2024-09-12 18:36:20,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 453 states have (on average 1.3311258278145695) internal successors, (603), 527 states have internal predecessors, (603), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:20,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 674 transitions. [2024-09-12 18:36:20,131 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 674 transitions. Word has length 178 [2024-09-12 18:36:20,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:20,131 INFO L474 AbstractCegarLoop]: Abstraction has 577 states and 674 transitions. [2024-09-12 18:36:20,131 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:36:20,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:20,132 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 674 transitions. [2024-09-12 18:36:20,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 18:36:20,134 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:20,134 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:20,152 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 18:36:20,334 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:20,334 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:20,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:20,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1204941498, now seen corresponding path program 1 times [2024-09-12 18:36:20,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:20,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253586034] [2024-09-12 18:36:20,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:20,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:20,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481283767] [2024-09-12 18:36:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:20,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:20,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:20,357 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:20,358 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 18:36:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:20,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:36:20,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:36:21,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:22,781 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:36:22,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:22,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253586034] [2024-09-12 18:36:22,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:22,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481283767] [2024-09-12 18:36:22,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481283767] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:22,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:36:22,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2024-09-12 18:36:22,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578114084] [2024-09-12 18:36:22,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:22,782 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:36:22,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:22,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:36:22,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:36:22,783 INFO L87 Difference]: Start difference. First operand 577 states and 674 transitions. Second operand has 11 states, 10 states have (on average 24.1) internal successors, (241), 11 states have internal predecessors, (241), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2024-09-12 18:36:29,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:29,108 INFO L93 Difference]: Finished difference Result 585 states and 674 transitions. [2024-09-12 18:36:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:36:29,108 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.1) internal successors, (241), 11 states have internal predecessors, (241), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 181 [2024-09-12 18:36:29,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:29,111 INFO L225 Difference]: With dead ends: 585 [2024-09-12 18:36:29,111 INFO L226 Difference]: Without dead ends: 577 [2024-09-12 18:36:29,111 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:36:29,111 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 496 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:29,111 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 422 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-09-12 18:36:29,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-09-12 18:36:29,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2024-09-12 18:36:29,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 453 states have (on average 1.3134657836644592) internal successors, (595), 527 states have internal predecessors, (595), 37 states have call successors, (37), 15 states have call predecessors, (37), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 666 transitions. [2024-09-12 18:36:29,387 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 666 transitions. Word has length 181 [2024-09-12 18:36:29,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:29,389 INFO L474 AbstractCegarLoop]: Abstraction has 577 states and 666 transitions. [2024-09-12 18:36:29,389 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.1) internal successors, (241), 11 states have internal predecessors, (241), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2024-09-12 18:36:29,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:29,390 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 666 transitions. [2024-09-12 18:36:29,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-09-12 18:36:29,390 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:29,391 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:29,408 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:29,591 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:29,591 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:29,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:29,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2102605332, now seen corresponding path program 1 times [2024-09-12 18:36:29,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:29,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86134021] [2024-09-12 18:36:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:29,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:29,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397010932] [2024-09-12 18:36:29,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:29,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:29,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:29,623 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:29,625 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 18:36:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:29,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:36:29,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:30,344 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 22 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:36:30,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:31,463 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 22 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:36:31,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:31,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86134021] [2024-09-12 18:36:31,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:31,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397010932] [2024-09-12 18:36:31,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397010932] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:31,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:36:31,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2024-09-12 18:36:31,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254812526] [2024-09-12 18:36:31,464 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:31,465 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:36:31,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:31,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:36:31,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:36:31,466 INFO L87 Difference]: Start difference. First operand 577 states and 666 transitions. Second operand has 16 states, 16 states have (on average 15.8125) internal successors, (253), 15 states have internal predecessors, (253), 7 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-09-12 18:36:35,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:35,915 INFO L93 Difference]: Finished difference Result 587 states and 674 transitions. [2024-09-12 18:36:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:36:35,915 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.8125) internal successors, (253), 15 states have internal predecessors, (253), 7 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 190 [2024-09-12 18:36:35,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:35,918 INFO L225 Difference]: With dead ends: 587 [2024-09-12 18:36:35,919 INFO L226 Difference]: Without dead ends: 585 [2024-09-12 18:36:35,921 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 363 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:36:35,922 INFO L434 NwaCegarLoop]: 161 mSDtfsCounter, 107 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:35,922 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 744 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-09-12 18:36:35,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-09-12 18:36:36,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-09-12 18:36:36,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 459 states have (on average 1.3093681917211328) internal successors, (601), 533 states have internal predecessors, (601), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:36,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 672 transitions. [2024-09-12 18:36:36,155 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 672 transitions. Word has length 190 [2024-09-12 18:36:36,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:36,155 INFO L474 AbstractCegarLoop]: Abstraction has 585 states and 672 transitions. [2024-09-12 18:36:36,155 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.8125) internal successors, (253), 15 states have internal predecessors, (253), 7 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-09-12 18:36:36,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:36,155 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 672 transitions. [2024-09-12 18:36:36,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-09-12 18:36:36,156 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:36,156 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:36,170 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:36,357 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:36:36,357 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:36,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:36,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2103135592, now seen corresponding path program 1 times [2024-09-12 18:36:36,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:36,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789784457] [2024-09-12 18:36:36,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:36,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:36,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010618474] [2024-09-12 18:36:36,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:36,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:36,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:36,385 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:36,387 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 18:36:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:36,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:36:36,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:36,989 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:36:36,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:37,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:37,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789784457] [2024-09-12 18:36:37,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:37,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010618474] [2024-09-12 18:36:37,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010618474] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:37,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:36:37,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:36:37,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516751357] [2024-09-12 18:36:37,286 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:37,287 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:36:37,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:37,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:36:37,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:36:37,287 INFO L87 Difference]: Start difference. First operand 585 states and 672 transitions. Second operand has 6 states, 5 states have (on average 27.6) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-09-12 18:36:38,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:38,361 INFO L93 Difference]: Finished difference Result 588 states and 672 transitions. [2024-09-12 18:36:38,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:36:38,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 200 [2024-09-12 18:36:38,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:38,364 INFO L225 Difference]: With dead ends: 588 [2024-09-12 18:36:38,364 INFO L226 Difference]: Without dead ends: 585 [2024-09-12 18:36:38,364 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:36:38,365 INFO L434 NwaCegarLoop]: 199 mSDtfsCounter, 19 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:38,365 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 479 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:36:38,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-09-12 18:36:38,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-09-12 18:36:38,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 459 states have (on average 1.3028322440087146) internal successors, (598), 533 states have internal predecessors, (598), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:38,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 669 transitions. [2024-09-12 18:36:38,638 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 669 transitions. Word has length 200 [2024-09-12 18:36:38,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:38,638 INFO L474 AbstractCegarLoop]: Abstraction has 585 states and 669 transitions. [2024-09-12 18:36:38,639 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-09-12 18:36:38,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:38,639 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 669 transitions. [2024-09-12 18:36:38,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-09-12 18:36:38,640 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:38,640 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:38,658 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:38,841 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 18:36:38,841 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:38,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:38,841 INFO L85 PathProgramCache]: Analyzing trace with hash 772694141, now seen corresponding path program 1 times [2024-09-12 18:36:38,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:38,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855081210] [2024-09-12 18:36:38,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:38,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:36:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:36:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:36:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:36:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:36:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:36:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:36:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:36:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:36:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:36:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:36:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:36:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 18:36:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:36:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,074 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:36:39,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:39,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855081210] [2024-09-12 18:36:39,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855081210] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:39,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473530041] [2024-09-12 18:36:39,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:39,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:39,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:39,076 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:39,079 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 18:36:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:39,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:36:39,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:39,801 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:36:39,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:39,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473530041] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:39,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:36:39,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2024-09-12 18:36:39,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879582356] [2024-09-12 18:36:39,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:39,913 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:36:39,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:39,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:36:39,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:36:39,914 INFO L87 Difference]: Start difference. First operand 585 states and 669 transitions. Second operand has 11 states, 10 states have (on average 27.0) internal successors, (270), 11 states have internal predecessors, (270), 5 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-09-12 18:36:42,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:42,052 INFO L93 Difference]: Finished difference Result 585 states and 669 transitions. [2024-09-12 18:36:42,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:36:42,052 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 27.0) internal successors, (270), 11 states have internal predecessors, (270), 5 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 201 [2024-09-12 18:36:42,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:42,055 INFO L225 Difference]: With dead ends: 585 [2024-09-12 18:36:42,055 INFO L226 Difference]: Without dead ends: 579 [2024-09-12 18:36:42,055 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:36:42,056 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 528 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:42,056 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 307 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-09-12 18:36:42,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-09-12 18:36:42,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-09-12 18:36:42,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 459 states have (on average 1.2745098039215685) internal successors, (585), 527 states have internal predecessors, (585), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:42,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 656 transitions. [2024-09-12 18:36:42,263 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 656 transitions. Word has length 201 [2024-09-12 18:36:42,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:42,264 INFO L474 AbstractCegarLoop]: Abstraction has 579 states and 656 transitions. [2024-09-12 18:36:42,264 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 27.0) internal successors, (270), 11 states have internal predecessors, (270), 5 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-09-12 18:36:42,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:42,264 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 656 transitions. [2024-09-12 18:36:42,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-09-12 18:36:42,265 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:42,266 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:42,280 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 18:36:42,466 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 18:36:42,466 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:42,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:42,467 INFO L85 PathProgramCache]: Analyzing trace with hash 843688855, now seen corresponding path program 1 times [2024-09-12 18:36:42,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:42,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204497889] [2024-09-12 18:36:42,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:42,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:42,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241716347] [2024-09-12 18:36:42,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:42,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:42,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:42,495 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:42,497 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 18:36:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:42,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:36:42,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:42,734 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:36:42,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:42,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204497889] [2024-09-12 18:36:42,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241716347] [2024-09-12 18:36:42,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241716347] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:42,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:36:42,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:36:42,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267145809] [2024-09-12 18:36:42,820 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:42,820 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:36:42,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:42,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:36:42,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:36:42,821 INFO L87 Difference]: Start difference. First operand 579 states and 656 transitions. Second operand has 5 states, 4 states have (on average 35.0) internal successors, (140), 5 states have internal predecessors, (140), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:36:43,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:43,167 INFO L93 Difference]: Finished difference Result 638 states and 658 transitions. [2024-09-12 18:36:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:36:43,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 35.0) internal successors, (140), 5 states have internal predecessors, (140), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 202 [2024-09-12 18:36:43,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:43,171 INFO L225 Difference]: With dead ends: 638 [2024-09-12 18:36:43,171 INFO L226 Difference]: Without dead ends: 637 [2024-09-12 18:36:43,171 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:36:43,171 INFO L434 NwaCegarLoop]: 217 mSDtfsCounter, 233 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:43,172 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 754 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:36:43,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-09-12 18:36:43,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 579. [2024-09-12 18:36:43,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 459 states have (on average 1.2723311546840959) internal successors, (584), 527 states have internal predecessors, (584), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:43,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 655 transitions. [2024-09-12 18:36:43,464 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 655 transitions. Word has length 202 [2024-09-12 18:36:43,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:43,465 INFO L474 AbstractCegarLoop]: Abstraction has 579 states and 655 transitions. [2024-09-12 18:36:43,465 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 35.0) internal successors, (140), 5 states have internal predecessors, (140), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:36:43,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:43,465 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 655 transitions. [2024-09-12 18:36:43,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-09-12 18:36:43,466 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:43,466 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:43,483 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 18:36:43,666 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:36:43,667 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:43,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:43,669 INFO L85 PathProgramCache]: Analyzing trace with hash -953392191, now seen corresponding path program 1 times [2024-09-12 18:36:43,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:43,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499224701] [2024-09-12 18:36:43,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:43,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:43,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318694837] [2024-09-12 18:36:43,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:43,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:43,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:43,701 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:36:43,703 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:36:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:36:43,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:36:43,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:44,340 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:36:44,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:44,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:44,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499224701] [2024-09-12 18:36:44,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:44,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318694837] [2024-09-12 18:36:44,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318694837] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:36:44,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:36:44,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:36:44,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816464667] [2024-09-12 18:36:44,445 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:44,446 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:36:44,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:44,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:36:44,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:36:44,447 INFO L87 Difference]: Start difference. First operand 579 states and 655 transitions. Second operand has 7 states, 6 states have (on average 23.833333333333332) internal successors, (143), 7 states have internal predecessors, (143), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:36:45,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:36:45,646 INFO L93 Difference]: Finished difference Result 581 states and 655 transitions. [2024-09-12 18:36:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:36:45,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 23.833333333333332) internal successors, (143), 7 states have internal predecessors, (143), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 205 [2024-09-12 18:36:45,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:36:45,649 INFO L225 Difference]: With dead ends: 581 [2024-09-12 18:36:45,649 INFO L226 Difference]: Without dead ends: 579 [2024-09-12 18:36:45,649 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:36:45,650 INFO L434 NwaCegarLoop]: 172 mSDtfsCounter, 38 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:36:45,650 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 467 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:36:45,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-09-12 18:36:45,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-09-12 18:36:45,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 459 states have (on average 1.2679738562091503) internal successors, (582), 527 states have internal predecessors, (582), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:36:45,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 653 transitions. [2024-09-12 18:36:45,901 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 653 transitions. Word has length 205 [2024-09-12 18:36:45,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:36:45,901 INFO L474 AbstractCegarLoop]: Abstraction has 579 states and 653 transitions. [2024-09-12 18:36:45,901 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 23.833333333333332) internal successors, (143), 7 states have internal predecessors, (143), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:36:45,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:45,901 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 653 transitions. [2024-09-12 18:36:45,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-09-12 18:36:45,902 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:36:45,902 INFO L216 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:36:45,915 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 18:36:46,102 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:36:46,103 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-09-12 18:36:46,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:36:46,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1484450885, now seen corresponding path program 5 times [2024-09-12 18:36:46,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:36:46,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53643212] [2024-09-12 18:36:46,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:36:46,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:36:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:36:46,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656841021] [2024-09-12 18:36:46,128 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:36:46,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:36:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:36:46,131 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 18:36:46,131 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 18:36:46,245 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-09-12 18:36:46,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:36:46,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:36:46,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:36:46,847 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 29 proven. 133 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-09-12 18:36:46,847 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:36:47,238 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 29 proven. 133 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-09-12 18:36:47,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:36:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53643212] [2024-09-12 18:36:47,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:36:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656841021] [2024-09-12 18:36:47,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656841021] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:36:47,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:36:47,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2024-09-12 18:36:47,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141843161] [2024-09-12 18:36:47,239 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:36:47,240 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 18:36:47,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:36:47,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 18:36:47,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:36:47,241 INFO L87 Difference]: Start difference. First operand 579 states and 653 transitions. Second operand has 21 states, 21 states have (on average 13.428571428571429) internal successors, (282), 20 states have internal predecessors, (282), 8 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2024-09-12 18:36:55,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:36:56,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:00,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:05,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:07,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:11,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:16,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:21,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:25,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:30,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:32,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:33,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:38,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:39,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:42,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:47,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:52,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:37:56,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:00,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:05,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:11,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:16,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:22,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:27,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:33,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:38,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:44,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:50,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:38:55,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:00,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:06,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:12,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:17,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:23,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:28,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:33,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:39:38,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []