./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/ps3-ll.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/ps3-ll.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9 --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 18:31:11,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:31:11,534 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:31:11,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:31:11,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:31:11,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:31:11,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:31:11,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:31:11,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:31:11,569 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:31:11,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:31:11,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:31:11,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:31:11,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:31:11,571 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:31:11,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:31:11,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:31:11,571 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:31:11,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:31:11,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:31:11,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:31:11,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:31:11,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:31:11,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:31:11,575 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:31:11,576 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:31:11,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:31:11,576 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:31:11,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:31:11,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:31:11,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:31:11,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:31:11,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:31:11,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:31:11,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:31:11,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:31:11,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:31:11,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:31:11,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:31:11,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:31:11,579 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:31:11,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:31:11,580 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:31:11,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:31:11,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:31:11,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:31:11,883 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:31:11,884 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:31:11,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench/ps3-ll.c [2024-09-12 18:31:13,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:31:13,399 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:31:13,399 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/ps3-ll.c [2024-09-12 18:31:13,408 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/9ddae1e2f/601f8b06025e42aba05fd23a8e2e1056/FLAG2ab394ee6 [2024-09-12 18:31:13,422 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/9ddae1e2f/601f8b06025e42aba05fd23a8e2e1056 [2024-09-12 18:31:13,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:31:13,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:31:13,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:31:13,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:31:13,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:31:13,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c34f3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13, skipping insertion in model container [2024-09-12 18:31:13,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,468 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:31:13,601 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/ps3-ll.c[458,471] [2024-09-12 18:31:13,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:31:13,631 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:31:13,642 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/ps3-ll.c[458,471] [2024-09-12 18:31:13,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:31:13,668 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:31:13,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13 WrapperNode [2024-09-12 18:31:13,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:31:13,670 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:31:13,670 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:31:13,670 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:31:13,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,686 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:31:13,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:31:13,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:31:13,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:31:13,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:31:13,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,714 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 18:31:13,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:31:13,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:31:13,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:31:13,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:31:13,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (1/1) ... [2024-09-12 18:31:13,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:31:13,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:13,757 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 18:31:13,761 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 18:31:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:31:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:31:13,803 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:31:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:31:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:31:13,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:31:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:31:13,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:31:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:31:13,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:31:13,852 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:31:13,854 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:31:14,160 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-09-12 18:31:14,162 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:31:14,187 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:31:14,188 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:31:14,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:31:14 BoogieIcfgContainer [2024-09-12 18:31:14,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:31:14,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:31:14,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:31:14,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:31:14,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:31:13" (1/3) ... [2024-09-12 18:31:14,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de0edfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:31:14, skipping insertion in model container [2024-09-12 18:31:14,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:31:13" (2/3) ... [2024-09-12 18:31:14,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de0edfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:31:14, skipping insertion in model container [2024-09-12 18:31:14,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:31:14" (3/3) ... [2024-09-12 18:31:14,198 INFO L112 eAbstractionObserver]: Analyzing ICFG ps3-ll.c [2024-09-12 18:31:14,212 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:31:14,213 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2024-09-12 18:31:14,269 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:31:14,275 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;@dcb8033, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:31:14,276 INFO L337 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-09-12 18:31:14,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 99 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:31:14,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 18:31:14,286 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:14,286 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:14,287 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:14,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:14,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1561570973, now seen corresponding path program 1 times [2024-09-12 18:31:14,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:14,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097052230] [2024-09-12 18:31:14,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:14,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:14,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:14,412 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 18:31:14,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:14,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097052230] [2024-09-12 18:31:14,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097052230] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:14,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:14,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:31:14,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818732078] [2024-09-12 18:31:14,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:14,428 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:31:14,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:14,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:31:14,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:31:14,450 INFO L87 Difference]: Start difference. First operand has 107 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 99 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:14,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:14,493 INFO L93 Difference]: Finished difference Result 204 states and 219 transitions. [2024-09-12 18:31:14,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:31:14,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 18:31:14,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:14,503 INFO L225 Difference]: With dead ends: 204 [2024-09-12 18:31:14,503 INFO L226 Difference]: Without dead ends: 98 [2024-09-12 18:31:14,507 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:31:14,510 INFO L434 NwaCegarLoop]: 101 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, 101 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 18:31:14,513 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:31:14,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-09-12 18:31:14,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-09-12 18:31:14,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 52 states have (on average 1.7884615384615385) internal successors, (93), 92 states have internal predecessors, (93), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:14,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2024-09-12 18:31:14,556 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 7 [2024-09-12 18:31:14,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:14,557 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2024-09-12 18:31:14,557 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:14,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:14,558 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2024-09-12 18:31:14,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 18:31:14,559 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:14,559 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:14,559 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:31:14,559 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:14,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1561569052, now seen corresponding path program 1 times [2024-09-12 18:31:14,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:14,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264221558] [2024-09-12 18:31:14,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:14,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:14,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:14,623 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 18:31:14,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264221558] [2024-09-12 18:31:14,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264221558] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:14,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:14,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:31:14,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235601700] [2024-09-12 18:31:14,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:14,629 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:31:14,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:14,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:31:14,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:31:14,630 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:14,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:14,774 INFO L93 Difference]: Finished difference Result 172 states and 188 transitions. [2024-09-12 18:31:14,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:31:14,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 18:31:14,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:14,776 INFO L225 Difference]: With dead ends: 172 [2024-09-12 18:31:14,776 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 18:31:14,777 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:31:14,778 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 66 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:14,778 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 128 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:31:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 18:31:14,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 128. [2024-09-12 18:31:14,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 81 states have (on average 1.7530864197530864) internal successors, (142), 121 states have internal predecessors, (142), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2024-09-12 18:31:14,798 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 7 [2024-09-12 18:31:14,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:14,798 INFO L474 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2024-09-12 18:31:14,798 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:14,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:14,799 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2024-09-12 18:31:14,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 18:31:14,799 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:14,800 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:14,800 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:31:14,800 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:14,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:14,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1724274206, now seen corresponding path program 1 times [2024-09-12 18:31:14,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:14,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435151737] [2024-09-12 18:31:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:14,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:14,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:14,841 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 18:31:14,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:14,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435151737] [2024-09-12 18:31:14,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435151737] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:14,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:14,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:31:14,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620018589] [2024-09-12 18:31:14,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:14,846 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:31:14,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:14,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:31:14,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:31:14,847 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:15,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:15,044 INFO L93 Difference]: Finished difference Result 165 states and 181 transitions. [2024-09-12 18:31:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:31:15,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-12 18:31:15,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:15,046 INFO L225 Difference]: With dead ends: 165 [2024-09-12 18:31:15,046 INFO L226 Difference]: Without dead ends: 147 [2024-09-12 18:31:15,046 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:31:15,047 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 41 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:15,048 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 78 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:31:15,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-09-12 18:31:15,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 140. [2024-09-12 18:31:15,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 93 states have (on average 1.5698924731182795) internal successors, (146), 133 states have internal predecessors, (146), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:15,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2024-09-12 18:31:15,072 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 9 [2024-09-12 18:31:15,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:15,073 INFO L474 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2024-09-12 18:31:15,073 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:15,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:15,074 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2024-09-12 18:31:15,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 18:31:15,075 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:15,075 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:15,075 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:31:15,075 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:15,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:15,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1594354908, now seen corresponding path program 1 times [2024-09-12 18:31:15,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:15,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176913900] [2024-09-12 18:31:15,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:15,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:15,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:15,169 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 18:31:15,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:15,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176913900] [2024-09-12 18:31:15,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176913900] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:15,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:15,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:31:15,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131472755] [2024-09-12 18:31:15,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:15,170 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:31:15,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:15,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:31:15,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:31:15,171 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:15,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:15,355 INFO L93 Difference]: Finished difference Result 155 states and 165 transitions. [2024-09-12 18:31:15,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:31:15,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-12 18:31:15,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:15,358 INFO L225 Difference]: With dead ends: 155 [2024-09-12 18:31:15,358 INFO L226 Difference]: Without dead ends: 149 [2024-09-12 18:31:15,359 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 18:31:15,360 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 83 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:15,363 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 112 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:31:15,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-09-12 18:31:15,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 143. [2024-09-12 18:31:15,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 96 states have (on average 1.5208333333333333) internal successors, (146), 136 states have internal predecessors, (146), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:15,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 154 transitions. [2024-09-12 18:31:15,384 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 154 transitions. Word has length 15 [2024-09-12 18:31:15,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:15,387 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 154 transitions. [2024-09-12 18:31:15,388 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:15,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:15,388 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 154 transitions. [2024-09-12 18:31:15,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:31:15,388 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:15,389 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:15,389 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:31:15,389 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:15,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:15,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2114605468, now seen corresponding path program 1 times [2024-09-12 18:31:15,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:15,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554957704] [2024-09-12 18:31:15,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:15,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:15,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785833874] [2024-09-12 18:31:15,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:15,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:15,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:15,406 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 18:31:15,407 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 18:31:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:15,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:31:15,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:15,525 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 18:31:15,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:31:15,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:15,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554957704] [2024-09-12 18:31:15,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:15,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785833874] [2024-09-12 18:31:15,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785833874] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:15,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:15,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:31:15,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760905476] [2024-09-12 18:31:15,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:15,528 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:31:15,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:15,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:31:15,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:31:15,529 INFO L87 Difference]: Start difference. First operand 143 states and 154 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:15,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:15,688 INFO L93 Difference]: Finished difference Result 153 states and 157 transitions. [2024-09-12 18:31:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:31:15,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-09-12 18:31:15,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:15,690 INFO L225 Difference]: With dead ends: 153 [2024-09-12 18:31:15,690 INFO L226 Difference]: Without dead ends: 147 [2024-09-12 18:31:15,690 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 18:31:15,691 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 34 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:15,691 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 78 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:31:15,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-09-12 18:31:15,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2024-09-12 18:31:15,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 97 states have (on average 1.4639175257731958) internal successors, (142), 137 states have internal predecessors, (142), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:15,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 150 transitions. [2024-09-12 18:31:15,705 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 150 transitions. Word has length 16 [2024-09-12 18:31:15,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:15,705 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 150 transitions. [2024-09-12 18:31:15,706 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:15,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:15,706 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 150 transitions. [2024-09-12 18:31:15,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 18:31:15,706 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:15,706 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:15,720 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 18:31:15,913 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:15,914 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:15,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash -653401384, now seen corresponding path program 1 times [2024-09-12 18:31:15,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:15,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117612606] [2024-09-12 18:31:15,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:15,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:15,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762973222] [2024-09-12 18:31:15,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:15,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:15,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:15,934 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 18:31:15,935 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 18:31:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:15,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:31:15,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:16,062 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 18:31:16,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:31:16,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:16,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117612606] [2024-09-12 18:31:16,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:16,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762973222] [2024-09-12 18:31:16,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762973222] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:16,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:16,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:31:16,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760512266] [2024-09-12 18:31:16,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:16,064 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:31:16,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:16,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:31:16,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:31:16,064 INFO L87 Difference]: Start difference. First operand 144 states and 150 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:16,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:16,251 INFO L93 Difference]: Finished difference Result 153 states and 156 transitions. [2024-09-12 18:31:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:31:16,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-09-12 18:31:16,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:16,253 INFO L225 Difference]: With dead ends: 153 [2024-09-12 18:31:16,253 INFO L226 Difference]: Without dead ends: 132 [2024-09-12 18:31:16,255 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 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 18:31:16,255 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 28 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:16,256 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 185 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:31:16,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-09-12 18:31:16,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2024-09-12 18:31:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 122 states have internal predecessors, (126), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 134 transitions. [2024-09-12 18:31:16,275 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 134 transitions. Word has length 28 [2024-09-12 18:31:16,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:16,275 INFO L474 AbstractCegarLoop]: Abstraction has 130 states and 134 transitions. [2024-09-12 18:31:16,275 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:31:16,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 134 transitions. [2024-09-12 18:31:16,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 18:31:16,276 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:16,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:16,300 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:31:16,477 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:31:16,478 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:16,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:16,478 INFO L85 PathProgramCache]: Analyzing trace with hash -683951028, now seen corresponding path program 1 times [2024-09-12 18:31:16,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:16,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493784991] [2024-09-12 18:31:16,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:16,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:16,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:16,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 18:31:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:16,571 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 18:31:16,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:16,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493784991] [2024-09-12 18:31:16,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493784991] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:16,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:16,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:31:16,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561993458] [2024-09-12 18:31:16,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:16,572 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:31:16,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:16,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:31:16,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:31:16,573 INFO L87 Difference]: Start difference. First operand 130 states and 134 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:16,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:16,599 INFO L93 Difference]: Finished difference Result 132 states and 134 transitions. [2024-09-12 18:31:16,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:31:16,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2024-09-12 18:31:16,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:16,600 INFO L225 Difference]: With dead ends: 132 [2024-09-12 18:31:16,600 INFO L226 Difference]: Without dead ends: 130 [2024-09-12 18:31:16,601 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 18:31:16,601 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 1 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:16,602 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 186 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:31:16,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-09-12 18:31:16,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-09-12 18:31:16,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 82 states have (on average 1.5121951219512195) internal successors, (124), 122 states have internal predecessors, (124), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:16,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 132 transitions. [2024-09-12 18:31:16,610 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 132 transitions. Word has length 31 [2024-09-12 18:31:16,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:16,610 INFO L474 AbstractCegarLoop]: Abstraction has 130 states and 132 transitions. [2024-09-12 18:31:16,610 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:16,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:16,611 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 132 transitions. [2024-09-12 18:31:16,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:31:16,611 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:16,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:16,611 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:31:16,612 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:16,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:16,612 INFO L85 PathProgramCache]: Analyzing trace with hash -880175726, now seen corresponding path program 1 times [2024-09-12 18:31:16,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:16,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358657088] [2024-09-12 18:31:16,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:16,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:16,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781053815] [2024-09-12 18:31:16,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:16,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:16,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:16,626 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 18:31:16,627 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 18:31:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:16,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:31:16,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:16,698 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 18:31:16,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:31:16,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:16,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358657088] [2024-09-12 18:31:16,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:16,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781053815] [2024-09-12 18:31:16,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781053815] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:16,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:16,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:31:16,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851942711] [2024-09-12 18:31:16,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:16,700 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:31:16,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:16,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:31:16,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:31:16,701 INFO L87 Difference]: Start difference. First operand 130 states and 132 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:16,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:16,862 INFO L93 Difference]: Finished difference Result 200 states and 216 transitions. [2024-09-12 18:31:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:31:16,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2024-09-12 18:31:16,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:16,864 INFO L225 Difference]: With dead ends: 200 [2024-09-12 18:31:16,864 INFO L226 Difference]: Without dead ends: 181 [2024-09-12 18:31:16,864 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:31:16,865 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 51 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:16,865 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 107 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:31:16,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-09-12 18:31:16,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 170. [2024-09-12 18:31:16,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 121 states have (on average 1.4710743801652892) internal successors, (178), 161 states have internal predecessors, (178), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:31:16,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 188 transitions. [2024-09-12 18:31:16,875 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 188 transitions. Word has length 36 [2024-09-12 18:31:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:16,875 INFO L474 AbstractCegarLoop]: Abstraction has 170 states and 188 transitions. [2024-09-12 18:31:16,875 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:16,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:16,875 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 188 transitions. [2024-09-12 18:31:16,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:31:16,876 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:16,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:16,898 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 18:31:17,076 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 18:31:17,077 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:17,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:17,077 INFO L85 PathProgramCache]: Analyzing trace with hash 259687828, now seen corresponding path program 1 times [2024-09-12 18:31:17,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:17,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533000677] [2024-09-12 18:31:17,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:17,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:17,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:17,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 18:31:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:17,164 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 18:31:17,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:17,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533000677] [2024-09-12 18:31:17,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533000677] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:17,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:17,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:31:17,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169963551] [2024-09-12 18:31:17,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:17,166 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:31:17,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:17,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:31:17,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:31:17,167 INFO L87 Difference]: Start difference. First operand 170 states and 188 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:17,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:17,306 INFO L93 Difference]: Finished difference Result 171 states and 188 transitions. [2024-09-12 18:31:17,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:31:17,306 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2024-09-12 18:31:17,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:17,307 INFO L225 Difference]: With dead ends: 171 [2024-09-12 18:31:17,308 INFO L226 Difference]: Without dead ends: 170 [2024-09-12 18:31:17,308 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 18:31:17,308 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 23 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:17,308 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 155 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:31:17,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-09-12 18:31:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2024-09-12 18:31:17,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 121 states have (on average 1.462809917355372) internal successors, (177), 161 states have internal predecessors, (177), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:31:17,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 187 transitions. [2024-09-12 18:31:17,321 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 187 transitions. Word has length 38 [2024-09-12 18:31:17,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:17,322 INFO L474 AbstractCegarLoop]: Abstraction has 170 states and 187 transitions. [2024-09-12 18:31:17,322 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:17,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:17,322 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 187 transitions. [2024-09-12 18:31:17,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:31:17,322 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:17,323 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, 1, 1, 1, 1, 1] [2024-09-12 18:31:17,323 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 18:31:17,323 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:17,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:17,323 INFO L85 PathProgramCache]: Analyzing trace with hash 451900950, now seen corresponding path program 1 times [2024-09-12 18:31:17,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:17,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884349123] [2024-09-12 18:31:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:17,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:17,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012634273] [2024-09-12 18:31:17,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:17,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:17,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:17,337 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 18:31:17,339 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 18:31:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:17,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:31:17,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:17,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-12 18:31:17,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:31:17,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:17,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884349123] [2024-09-12 18:31:17,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:17,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012634273] [2024-09-12 18:31:17,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012634273] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:17,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:17,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:31:17,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940867024] [2024-09-12 18:31:17,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:17,444 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:31:17,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:17,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:31:17,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:31:17,445 INFO L87 Difference]: Start difference. First operand 170 states and 187 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:17,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:17,503 INFO L93 Difference]: Finished difference Result 170 states and 187 transitions. [2024-09-12 18:31:17,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:31:17,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-09-12 18:31:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:17,504 INFO L225 Difference]: With dead ends: 170 [2024-09-12 18:31:17,504 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 18:31:17,505 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 1 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 18:31:17,505 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 40 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:17,506 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 72 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:31:17,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 18:31:17,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-09-12 18:31:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 121 states have (on average 1.421487603305785) internal successors, (172), 158 states have internal predecessors, (172), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:31:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 182 transitions. [2024-09-12 18:31:17,516 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 182 transitions. Word has length 40 [2024-09-12 18:31:17,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:17,516 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 182 transitions. [2024-09-12 18:31:17,517 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:17,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:17,517 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 182 transitions. [2024-09-12 18:31:17,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 18:31:17,517 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:17,518 INFO L216 NwaCegarLoop]: trace histogram [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 18:31:17,530 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 18:31:17,718 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:17,719 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:17,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:17,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1124027610, now seen corresponding path program 1 times [2024-09-12 18:31:17,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:17,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461484938] [2024-09-12 18:31:17,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:17,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:17,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366045881] [2024-09-12 18:31:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:17,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:17,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:17,740 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 18:31:17,742 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 18:31:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:17,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:31:17,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:17,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:31:17,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:31:17,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:31:17,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:17,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461484938] [2024-09-12 18:31:17,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:17,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366045881] [2024-09-12 18:31:17,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366045881] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:31:17,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:31:17,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 18:31:17,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078328788] [2024-09-12 18:31:17,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:31:17,938 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:31:17,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:17,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:31:17,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:31:17,939 INFO L87 Difference]: Start difference. First operand 167 states and 182 transitions. Second operand has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:18,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:18,247 INFO L93 Difference]: Finished difference Result 184 states and 201 transitions. [2024-09-12 18:31:18,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:31:18,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 41 [2024-09-12 18:31:18,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:18,250 INFO L225 Difference]: With dead ends: 184 [2024-09-12 18:31:18,250 INFO L226 Difference]: Without dead ends: 180 [2024-09-12 18:31:18,250 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:31:18,251 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 197 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:18,252 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 136 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:31:18,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-09-12 18:31:18,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 173. [2024-09-12 18:31:18,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 128 states have (on average 1.375) internal successors, (176), 164 states have internal predecessors, (176), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:31:18,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 186 transitions. [2024-09-12 18:31:18,270 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 186 transitions. Word has length 41 [2024-09-12 18:31:18,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:18,270 INFO L474 AbstractCegarLoop]: Abstraction has 173 states and 186 transitions. [2024-09-12 18:31:18,271 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:18,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:18,271 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 186 transitions. [2024-09-12 18:31:18,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:31:18,272 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:18,273 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:18,285 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 18:31:18,473 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:31:18,474 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:18,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:18,474 INFO L85 PathProgramCache]: Analyzing trace with hash 804931614, now seen corresponding path program 1 times [2024-09-12 18:31:18,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:18,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941603164] [2024-09-12 18:31:18,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:18,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:18,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611173228] [2024-09-12 18:31:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:18,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:18,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:18,498 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 18:31:18,500 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 18:31:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:18,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:31:18,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:31:18,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:31:18,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:18,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941603164] [2024-09-12 18:31:18,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:18,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611173228] [2024-09-12 18:31:18,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611173228] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:18,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:18,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:31:18,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909619347] [2024-09-12 18:31:18,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:18,583 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:31:18,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:18,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:31:18,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:31:18,584 INFO L87 Difference]: Start difference. First operand 173 states and 186 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:18,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:18,748 INFO L93 Difference]: Finished difference Result 173 states and 186 transitions. [2024-09-12 18:31:18,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:31:18,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2024-09-12 18:31:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:18,750 INFO L225 Difference]: With dead ends: 173 [2024-09-12 18:31:18,750 INFO L226 Difference]: Without dead ends: 162 [2024-09-12 18:31:18,750 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:31:18,751 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 57 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:18,751 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 43 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:31:18,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-09-12 18:31:18,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-09-12 18:31:18,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 128 states have (on average 1.2578125) internal successors, (161), 153 states have internal predecessors, (161), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:31:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 171 transitions. [2024-09-12 18:31:18,770 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 171 transitions. Word has length 48 [2024-09-12 18:31:18,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:18,770 INFO L474 AbstractCegarLoop]: Abstraction has 162 states and 171 transitions. [2024-09-12 18:31:18,770 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:18,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:18,770 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 171 transitions. [2024-09-12 18:31:18,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:31:18,771 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:18,771 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:18,784 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 18:31:18,971 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 18:31:18,971 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:18,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:18,972 INFO L85 PathProgramCache]: Analyzing trace with hash -816923678, now seen corresponding path program 1 times [2024-09-12 18:31:18,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:18,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176906206] [2024-09-12 18:31:18,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:18,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:18,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969706470] [2024-09-12 18:31:18,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:18,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:18,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:18,989 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 18:31:18,990 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 18:31:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:19,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:31:19,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:31:19,134 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:31:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:31:19,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:19,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176906206] [2024-09-12 18:31:19,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:19,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969706470] [2024-09-12 18:31:19,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969706470] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:31:19,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:31:19,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 18:31:19,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783107660] [2024-09-12 18:31:19,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:31:19,245 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:31:19,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:19,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:31:19,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:31:19,246 INFO L87 Difference]: Start difference. First operand 162 states and 171 transitions. Second operand has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:19,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:19,560 INFO L93 Difference]: Finished difference Result 178 states and 192 transitions. [2024-09-12 18:31:19,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:31:19,561 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 49 [2024-09-12 18:31:19,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:19,562 INFO L225 Difference]: With dead ends: 178 [2024-09-12 18:31:19,562 INFO L226 Difference]: Without dead ends: 172 [2024-09-12 18:31:19,562 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:31:19,562 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 108 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:19,562 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 89 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:31:19,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-09-12 18:31:19,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 165. [2024-09-12 18:31:19,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 136 states have (on average 1.213235294117647) internal successors, (165), 156 states have internal predecessors, (165), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:31:19,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 175 transitions. [2024-09-12 18:31:19,593 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 175 transitions. Word has length 49 [2024-09-12 18:31:19,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:19,593 INFO L474 AbstractCegarLoop]: Abstraction has 165 states and 175 transitions. [2024-09-12 18:31:19,593 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:19,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:19,594 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 175 transitions. [2024-09-12 18:31:19,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 18:31:19,595 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:19,595 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:19,613 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:31:19,796 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:19,796 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:19,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash -589884386, now seen corresponding path program 1 times [2024-09-12 18:31:19,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:19,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492042996] [2024-09-12 18:31:19,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:19,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:19,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763145242] [2024-09-12 18:31:19,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:19,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:19,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:19,815 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 18:31:19,816 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 18:31:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:19,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:31:19,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:19,989 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:31:19,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:31:20,135 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-09-12 18:31:20,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:20,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492042996] [2024-09-12 18:31:20,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:20,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763145242] [2024-09-12 18:31:20,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763145242] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:31:20,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:31:20,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 18:31:20,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171210427] [2024-09-12 18:31:20,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:20,136 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:31:20,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:20,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:31:20,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:31:20,137 INFO L87 Difference]: Start difference. First operand 165 states and 175 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:20,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:20,421 INFO L93 Difference]: Finished difference Result 165 states and 175 transitions. [2024-09-12 18:31:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:31:20,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2024-09-12 18:31:20,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:20,423 INFO L225 Difference]: With dead ends: 165 [2024-09-12 18:31:20,423 INFO L226 Difference]: Without dead ends: 144 [2024-09-12 18:31:20,423 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:31:20,424 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 47 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:20,424 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 58 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:31:20,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-09-12 18:31:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-09-12 18:31:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 117 states have (on average 1.2222222222222223) internal successors, (143), 135 states have internal predecessors, (143), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:31:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2024-09-12 18:31:20,450 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 61 [2024-09-12 18:31:20,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:20,450 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2024-09-12 18:31:20,451 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:31:20,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:20,451 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2024-09-12 18:31:20,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-09-12 18:31:20,451 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:20,451 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:20,464 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 18:31:20,652 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:20,653 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:20,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:20,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1765326150, now seen corresponding path program 1 times [2024-09-12 18:31:20,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:20,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699531364] [2024-09-12 18:31:20,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:20,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:20,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:20,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 18:31:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:20,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:31:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:31:20,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:20,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699531364] [2024-09-12 18:31:20,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699531364] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:31:20,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818851675] [2024-09-12 18:31:20,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:20,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:20,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:20,722 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 18:31:20,723 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 18:31:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:20,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:31:20,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:31:20,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:31:20,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818851675] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:20,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:31:20,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 18:31:20,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35651196] [2024-09-12 18:31:20,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:20,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:31:20,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:20,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:31:20,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:31:20,803 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:20,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:20,840 INFO L93 Difference]: Finished difference Result 144 states and 152 transitions. [2024-09-12 18:31:20,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:31:20,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 64 [2024-09-12 18:31:20,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:20,841 INFO L225 Difference]: With dead ends: 144 [2024-09-12 18:31:20,842 INFO L226 Difference]: Without dead ends: 143 [2024-09-12 18:31:20,842 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:31:20,842 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 13 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:20,842 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 156 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:31:20,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-09-12 18:31:20,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-09-12 18:31:20,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 117 states have (on average 1.205128205128205) internal successors, (141), 134 states have internal predecessors, (141), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 18:31:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 150 transitions. [2024-09-12 18:31:20,866 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 150 transitions. Word has length 64 [2024-09-12 18:31:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:20,866 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 150 transitions. [2024-09-12 18:31:20,866 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:20,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 150 transitions. [2024-09-12 18:31:20,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:31:20,867 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:20,867 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:20,879 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:31:21,067 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:31:21,068 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:21,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:21,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1109464108, now seen corresponding path program 1 times [2024-09-12 18:31:21,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:21,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507542279] [2024-09-12 18:31:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:21,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 18:31:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:31:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:31:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:21,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507542279] [2024-09-12 18:31:21,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507542279] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:31:21,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263745105] [2024-09-12 18:31:21,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:21,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:21,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:21,132 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 18:31:21,133 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 18:31:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:31:21,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:21,219 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:31:21,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:31:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:31:21,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263745105] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:31:21,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:31:21,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 18:31:21,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317593814] [2024-09-12 18:31:21,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:31:21,281 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:31:21,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:21,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:31:21,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:31:21,282 INFO L87 Difference]: Start difference. First operand 143 states and 150 transitions. Second operand has 7 states, 6 states have (on average 21.5) internal successors, (129), 7 states have internal predecessors, (129), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:31:21,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:21,343 INFO L93 Difference]: Finished difference Result 204 states and 211 transitions. [2024-09-12 18:31:21,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:31:21,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.5) internal successors, (129), 7 states have internal predecessors, (129), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 65 [2024-09-12 18:31:21,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:21,345 INFO L225 Difference]: With dead ends: 204 [2024-09-12 18:31:21,345 INFO L226 Difference]: Without dead ends: 203 [2024-09-12 18:31:21,345 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 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 18:31:21,346 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 32 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:21,346 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 277 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:31:21,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-09-12 18:31:21,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 184. [2024-09-12 18:31:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 156 states have (on average 1.25) internal successors, (195), 173 states have internal predecessors, (195), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:31:21,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 208 transitions. [2024-09-12 18:31:21,387 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 208 transitions. Word has length 65 [2024-09-12 18:31:21,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:21,387 INFO L474 AbstractCegarLoop]: Abstraction has 184 states and 208 transitions. [2024-09-12 18:31:21,387 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.5) internal successors, (129), 7 states have internal predecessors, (129), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:31:21,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:21,387 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 208 transitions. [2024-09-12 18:31:21,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-12 18:31:21,388 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:21,388 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:21,401 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 18:31:21,588 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:31:21,588 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:21,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:21,589 INFO L85 PathProgramCache]: Analyzing trace with hash -565654178, now seen corresponding path program 1 times [2024-09-12 18:31:21,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:21,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606268040] [2024-09-12 18:31:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:21,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 18:31:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:31:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,646 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:31:21,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:21,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606268040] [2024-09-12 18:31:21,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606268040] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:21,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:21,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:31:21,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682934991] [2024-09-12 18:31:21,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:21,646 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:31:21,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:21,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:31:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:31:21,647 INFO L87 Difference]: Start difference. First operand 184 states and 208 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:31:21,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:21,737 INFO L93 Difference]: Finished difference Result 184 states and 208 transitions. [2024-09-12 18:31:21,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:31:21,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 75 [2024-09-12 18:31:21,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:21,739 INFO L225 Difference]: With dead ends: 184 [2024-09-12 18:31:21,739 INFO L226 Difference]: Without dead ends: 179 [2024-09-12 18:31:21,739 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:31:21,739 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 60 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:21,739 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 27 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:31:21,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-09-12 18:31:21,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-09-12 18:31:21,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 156 states have (on average 1.185897435897436) internal successors, (185), 168 states have internal predecessors, (185), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:31:21,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 198 transitions. [2024-09-12 18:31:21,786 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 198 transitions. Word has length 75 [2024-09-12 18:31:21,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:21,787 INFO L474 AbstractCegarLoop]: Abstraction has 179 states and 198 transitions. [2024-09-12 18:31:21,787 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:31:21,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:21,787 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 198 transitions. [2024-09-12 18:31:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:31:21,788 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:21,788 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:21,788 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:31:21,789 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:21,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:21,789 INFO L85 PathProgramCache]: Analyzing trace with hash -355410282, now seen corresponding path program 1 times [2024-09-12 18:31:21,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:21,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704287480] [2024-09-12 18:31:21,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:21,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 18:31:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:31:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-12 18:31:21,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:21,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704287480] [2024-09-12 18:31:21,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704287480] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:21,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:21,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:31:21,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127354838] [2024-09-12 18:31:21,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:21,865 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:31:21,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:21,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:31:21,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:31:21,865 INFO L87 Difference]: Start difference. First operand 179 states and 198 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:31:21,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:21,942 INFO L93 Difference]: Finished difference Result 179 states and 198 transitions. [2024-09-12 18:31:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:31:21,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 76 [2024-09-12 18:31:21,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:21,943 INFO L225 Difference]: With dead ends: 179 [2024-09-12 18:31:21,943 INFO L226 Difference]: Without dead ends: 178 [2024-09-12 18:31:21,943 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:31:21,944 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 54 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:21,944 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 27 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:31:21,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-09-12 18:31:21,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-09-12 18:31:21,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 156 states have (on average 1.1666666666666667) internal successors, (182), 167 states have internal predecessors, (182), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:31:21,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 195 transitions. [2024-09-12 18:31:21,976 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 195 transitions. Word has length 76 [2024-09-12 18:31:21,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:21,976 INFO L474 AbstractCegarLoop]: Abstraction has 178 states and 195 transitions. [2024-09-12 18:31:21,976 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:31:21,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:21,976 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 195 transitions. [2024-09-12 18:31:21,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:31:21,977 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:21,977 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:21,977 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 18:31:21,977 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:21,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:21,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2048104408, now seen corresponding path program 1 times [2024-09-12 18:31:21,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:21,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182717825] [2024-09-12 18:31:21,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:21,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:22,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:31:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:22,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 18:31:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:22,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:31:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:31:22,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:22,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182717825] [2024-09-12 18:31:22,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182717825] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:31:22,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349098209] [2024-09-12 18:31:22,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:22,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:22,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:22,037 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 18:31:22,038 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 18:31:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:22,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:31:22,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:31:22,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:31:22,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349098209] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:31:22,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:31:22,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2024-09-12 18:31:22,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892969800] [2024-09-12 18:31:22,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:31:22,220 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:31:22,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:22,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:31:22,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:31:22,221 INFO L87 Difference]: Start difference. First operand 178 states and 195 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:31:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:22,334 INFO L93 Difference]: Finished difference Result 178 states and 195 transitions. [2024-09-12 18:31:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:31:22,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 78 [2024-09-12 18:31:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:22,335 INFO L225 Difference]: With dead ends: 178 [2024-09-12 18:31:22,335 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 18:31:22,336 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:31:22,336 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 75 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:22,336 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 40 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:31:22,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 18:31:22,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-09-12 18:31:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 149 states have (on average 1.1208053691275168) internal successors, (167), 156 states have internal predecessors, (167), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:31:22,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 180 transitions. [2024-09-12 18:31:22,371 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 180 transitions. Word has length 78 [2024-09-12 18:31:22,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:22,372 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 180 transitions. [2024-09-12 18:31:22,372 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:31:22,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 180 transitions. [2024-09-12 18:31:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:31:22,373 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:22,373 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:22,385 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 18:31:22,573 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:22,574 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:22,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:22,574 INFO L85 PathProgramCache]: Analyzing trace with hash -933272734, now seen corresponding path program 1 times [2024-09-12 18:31:22,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:22,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669878150] [2024-09-12 18:31:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:22,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:22,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [858196645] [2024-09-12 18:31:22,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:22,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:22,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:22,588 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 18:31:22,588 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 18:31:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:22,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:31:22,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:31:22,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:31:22,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:22,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669878150] [2024-09-12 18:31:22,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:22,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858196645] [2024-09-12 18:31:22,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858196645] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:31:22,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:31:22,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:31:22,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615898299] [2024-09-12 18:31:22,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:31:22,703 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:31:22,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:22,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:31:22,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:31:22,704 INFO L87 Difference]: Start difference. First operand 167 states and 180 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:22,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:22,828 INFO L93 Difference]: Finished difference Result 167 states and 180 transitions. [2024-09-12 18:31:22,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:31:22,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 79 [2024-09-12 18:31:22,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:22,830 INFO L225 Difference]: With dead ends: 167 [2024-09-12 18:31:22,830 INFO L226 Difference]: Without dead ends: 158 [2024-09-12 18:31:22,830 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:31:22,831 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 25 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:22,831 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 72 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:31:22,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-09-12 18:31:22,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-09-12 18:31:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 142 states have (on average 1.0845070422535212) internal successors, (154), 147 states have internal predecessors, (154), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:31:22,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 167 transitions. [2024-09-12 18:31:22,864 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 167 transitions. Word has length 79 [2024-09-12 18:31:22,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:22,865 INFO L474 AbstractCegarLoop]: Abstraction has 158 states and 167 transitions. [2024-09-12 18:31:22,865 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:22,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:22,865 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 167 transitions. [2024-09-12 18:31:22,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 18:31:22,865 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:22,865 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:22,881 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 18:31:23,066 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-09-12 18:31:23,066 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:23,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:23,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1133316378, now seen corresponding path program 1 times [2024-09-12 18:31:23,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:23,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111932162] [2024-09-12 18:31:23,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:23,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:23,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913939468] [2024-09-12 18:31:23,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:23,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:23,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:23,083 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 18:31:23,088 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 18:31:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:23,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:31:23,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:23,189 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:31:23,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:31:23,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:23,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111932162] [2024-09-12 18:31:23,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:23,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913939468] [2024-09-12 18:31:23,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913939468] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:31:23,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:31:23,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:31:23,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209663283] [2024-09-12 18:31:23,268 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:31:23,268 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:31:23,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:23,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:31:23,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:31:23,269 INFO L87 Difference]: Start difference. First operand 158 states and 167 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:23,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:23,392 INFO L93 Difference]: Finished difference Result 159 states and 167 transitions. [2024-09-12 18:31:23,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:31:23,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 80 [2024-09-12 18:31:23,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:23,395 INFO L225 Difference]: With dead ends: 159 [2024-09-12 18:31:23,395 INFO L226 Difference]: Without dead ends: 158 [2024-09-12 18:31:23,395 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 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 18:31:23,396 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:23,396 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 58 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:31:23,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-09-12 18:31:23,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-09-12 18:31:23,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 142 states have (on average 1.0774647887323943) internal successors, (153), 147 states have internal predecessors, (153), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:31:23,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 166 transitions. [2024-09-12 18:31:23,442 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 166 transitions. Word has length 80 [2024-09-12 18:31:23,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:23,442 INFO L474 AbstractCegarLoop]: Abstraction has 158 states and 166 transitions. [2024-09-12 18:31:23,442 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:31:23,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 166 transitions. [2024-09-12 18:31:23,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:31:23,443 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:23,443 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:23,459 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 18:31:23,644 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:23,644 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:23,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:23,644 INFO L85 PathProgramCache]: Analyzing trace with hash 292984402, now seen corresponding path program 1 times [2024-09-12 18:31:23,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:23,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026803727] [2024-09-12 18:31:23,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:23,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:23,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1279757405] [2024-09-12 18:31:23,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:23,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:23,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:23,665 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 18:31:23,666 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 18:31:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:23,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:31:23,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:31:23,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:31:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:31:23,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:31:23,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026803727] [2024-09-12 18:31:23,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:31:23,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279757405] [2024-09-12 18:31:23,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279757405] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:31:23,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:31:23,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 18:31:23,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739695617] [2024-09-12 18:31:23,947 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:31:23,947 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:31:23,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:31:23,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:31:23,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:31:23,948 INFO L87 Difference]: Start difference. First operand 158 states and 166 transitions. Second operand has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 10 states have internal predecessors, (170), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:31:24,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:31:24,230 INFO L93 Difference]: Finished difference Result 174 states and 182 transitions. [2024-09-12 18:31:24,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:31:24,231 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), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 102 [2024-09-12 18:31:24,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:31:24,232 INFO L225 Difference]: With dead ends: 174 [2024-09-12 18:31:24,232 INFO L226 Difference]: Without dead ends: 172 [2024-09-12 18:31:24,232 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:31:24,233 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 79 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:31:24,233 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 175 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:31:24,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-09-12 18:31:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 157. [2024-09-12 18:31:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 142 states have (on average 1.056338028169014) internal successors, (150), 146 states have internal predecessors, (150), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:31:24,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 163 transitions. [2024-09-12 18:31:24,270 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 163 transitions. Word has length 102 [2024-09-12 18:31:24,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:31:24,271 INFO L474 AbstractCegarLoop]: Abstraction has 157 states and 163 transitions. [2024-09-12 18:31:24,271 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), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 18:31:24,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:24,271 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 163 transitions. [2024-09-12 18:31:24,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 18:31:24,271 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:31:24,272 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:31:24,284 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 18:31:24,472 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 18:31:24,473 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-09-12 18:31:24,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:31:24,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1909828012, now seen corresponding path program 1 times [2024-09-12 18:31:24,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:31:24,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706864205] [2024-09-12 18:31:24,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:24,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:31:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:31:24,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299312680] [2024-09-12 18:31:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:31:24,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:31:24,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:31:24,488 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 18:31:24,489 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 18:31:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:31:24,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:31:24,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:31:24,653 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 6 proven. 87 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:31:24,653 INFO L327 TraceCheckSpWp]: Computing backward predicates...