./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c6b05ef27bc57afa4e7776361d8c320f2c4d1efbfc422ad92c7a9c3c2e549e04 --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 18:56:17,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:56:17,793 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:56:17,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:56:17,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:56:17,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:56:17,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:56:17,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:56:17,828 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:56:17,829 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:56:17,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:56:17,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:56:17,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:56:17,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:56:17,834 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:56:17,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:56:17,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:56:17,835 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:56:17,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:56:17,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:56:17,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:56:17,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:56:17,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:56:17,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:56:17,839 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:56:17,840 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:56:17,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:56:17,840 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:56:17,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:56:17,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:56:17,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:56:17,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:56:17,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:56:17,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:56:17,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:56:17,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:56:17,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:56:17,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:56:17,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:56:17,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:56:17,847 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:56:17,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:56:17,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b05ef27bc57afa4e7776361d8c320f2c4d1efbfc422ad92c7a9c3c2e549e04 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:56:18,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:56:18,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:56:18,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:56:18,186 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:56:18,186 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:56:18,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c [2024-09-12 18:56:19,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:56:19,932 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:56:19,933 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c [2024-09-12 18:56:19,939 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/f60348eb6/de4ec794468d4cea93a107d2e56f211a/FLAGee480b577 [2024-09-12 18:56:20,306 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/f60348eb6/de4ec794468d4cea93a107d2e56f211a [2024-09-12 18:56:20,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:56:20,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:56:20,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:56:20,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:56:20,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:56:20,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6a56a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20, skipping insertion in model container [2024-09-12 18:56:20,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,339 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:56:20,479 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c[535,548] [2024-09-12 18:56:20,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:56:20,527 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:56:20,542 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound10.c[535,548] [2024-09-12 18:56:20,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:56:20,583 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:56:20,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20 WrapperNode [2024-09-12 18:56:20,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:56:20,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:56:20,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:56:20,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:56:20,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,615 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:56:20,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:56:20,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:56:20,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:56:20,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:56:20,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,645 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 18:56:20,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:56:20,657 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:56:20,657 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:56:20,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:56:20,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (1/1) ... [2024-09-12 18:56:20,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:56:20,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:20,701 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 18:56:20,707 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 18:56:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:56:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:56:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:56:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:56:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:56:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:56:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:56:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:56:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:56:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:56:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:56:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:56:20,809 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:56:20,811 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:56:21,404 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2024-09-12 18:56:21,404 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:56:21,445 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:56:21,447 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-12 18:56:21,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:56:21 BoogieIcfgContainer [2024-09-12 18:56:21,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:56:21,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:56:21,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:56:21,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:56:21,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:56:20" (1/3) ... [2024-09-12 18:56:21,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69eaf104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:56:21, skipping insertion in model container [2024-09-12 18:56:21,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:56:20" (2/3) ... [2024-09-12 18:56:21,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69eaf104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:56:21, skipping insertion in model container [2024-09-12 18:56:21,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:56:21" (3/3) ... [2024-09-12 18:56:21,458 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound10.c [2024-09-12 18:56:21,475 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:56:21,475 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 93 error locations. [2024-09-12 18:56:21,534 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:56:21,540 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;@438e29a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:56:21,540 INFO L337 AbstractCegarLoop]: Starting to check reachability of 93 error locations. [2024-09-12 18:56:21,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 110 states have (on average 1.9454545454545455) internal successors, (214), 203 states have internal predecessors, (214), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:56:21,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:56:21,553 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:21,554 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:21,555 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:21,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:21,561 INFO L85 PathProgramCache]: Analyzing trace with hash -666222725, now seen corresponding path program 1 times [2024-09-12 18:56:21,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:21,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030396484] [2024-09-12 18:56:21,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:21,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:21,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:21,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:21,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:56:21,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:21,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030396484] [2024-09-12 18:56:21,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030396484] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:21,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:21,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:21,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129009946] [2024-09-12 18:56:21,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:21,739 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:56:21,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:21,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:56:21,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:56:21,767 INFO L87 Difference]: Start difference. First operand has 218 states, 110 states have (on average 1.9454545454545455) internal successors, (214), 203 states have internal predecessors, (214), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:56:21,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:21,833 INFO L93 Difference]: Finished difference Result 420 states and 469 transitions. [2024-09-12 18:56:21,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:56:21,838 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2024-09-12 18:56:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:21,850 INFO L225 Difference]: With dead ends: 420 [2024-09-12 18:56:21,850 INFO L226 Difference]: Without dead ends: 204 [2024-09-12 18:56:21,857 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:56:21,860 INFO L434 NwaCegarLoop]: 214 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, 214 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 18:56:21,872 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:56:21,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-09-12 18:56:21,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-09-12 18:56:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 108 states have (on average 1.7962962962962963) internal successors, (194), 191 states have internal predecessors, (194), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:56:21,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 212 transitions. [2024-09-12 18:56:21,930 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 212 transitions. Word has length 17 [2024-09-12 18:56:21,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:21,931 INFO L474 AbstractCegarLoop]: Abstraction has 204 states and 212 transitions. [2024-09-12 18:56:21,931 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:56:21,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:21,932 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 212 transitions. [2024-09-12 18:56:21,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:56:21,933 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:21,934 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:21,934 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:56:21,934 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:21,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:21,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1059190153, now seen corresponding path program 1 times [2024-09-12 18:56:21,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:21,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466159039] [2024-09-12 18:56:21,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:21,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:56:22,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:22,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466159039] [2024-09-12 18:56:22,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466159039] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:22,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:22,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:22,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828141882] [2024-09-12 18:56:22,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:22,035 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:56:22,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:22,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:56:22,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:56:22,041 INFO L87 Difference]: Start difference. First operand 204 states and 212 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 18:56:22,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:22,129 INFO L93 Difference]: Finished difference Result 204 states and 212 transitions. [2024-09-12 18:56:22,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:56:22,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 17 [2024-09-12 18:56:22,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:22,134 INFO L225 Difference]: With dead ends: 204 [2024-09-12 18:56:22,135 INFO L226 Difference]: Without dead ends: 200 [2024-09-12 18:56:22,135 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 18:56:22,136 INFO L434 NwaCegarLoop]: 185 mSDtfsCounter, 13 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:22,138 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 365 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:56:22,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-09-12 18:56:22,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-09-12 18:56:22,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 108 states have (on average 1.7592592592592593) internal successors, (190), 187 states have internal predecessors, (190), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:56:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 208 transitions. [2024-09-12 18:56:22,165 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 208 transitions. Word has length 17 [2024-09-12 18:56:22,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:22,166 INFO L474 AbstractCegarLoop]: Abstraction has 200 states and 208 transitions. [2024-09-12 18:56:22,166 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 18:56:22,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:22,169 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 208 transitions. [2024-09-12 18:56:22,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 18:56:22,169 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:22,169 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:22,170 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:56:22,170 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:22,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:22,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1524843675, now seen corresponding path program 1 times [2024-09-12 18:56:22,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:22,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026810011] [2024-09-12 18:56:22,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:22,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:56:22,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:22,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026810011] [2024-09-12 18:56:22,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026810011] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:22,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:22,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:22,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738732178] [2024-09-12 18:56:22,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:22,281 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:56:22,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:22,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:56:22,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:56:22,297 INFO L87 Difference]: Start difference. First operand 200 states and 208 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 18:56:22,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:22,365 INFO L93 Difference]: Finished difference Result 200 states and 208 transitions. [2024-09-12 18:56:22,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:56:22,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 18 [2024-09-12 18:56:22,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:22,370 INFO L225 Difference]: With dead ends: 200 [2024-09-12 18:56:22,370 INFO L226 Difference]: Without dead ends: 196 [2024-09-12 18:56:22,370 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 18:56:22,371 INFO L434 NwaCegarLoop]: 185 mSDtfsCounter, 12 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:22,373 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 365 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:56:22,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-09-12 18:56:22,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-09-12 18:56:22,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 108 states have (on average 1.7222222222222223) internal successors, (186), 183 states have internal predecessors, (186), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:56:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 204 transitions. [2024-09-12 18:56:22,398 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 204 transitions. Word has length 18 [2024-09-12 18:56:22,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:22,399 INFO L474 AbstractCegarLoop]: Abstraction has 196 states and 204 transitions. [2024-09-12 18:56:22,399 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 18:56:22,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 204 transitions. [2024-09-12 18:56:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:56:22,404 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:22,404 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:22,404 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:56:22,404 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:22,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:22,405 INFO L85 PathProgramCache]: Analyzing trace with hash -129895393, now seen corresponding path program 1 times [2024-09-12 18:56:22,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:22,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619295284] [2024-09-12 18:56:22,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:22,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:22,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1543179370] [2024-09-12 18:56:22,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:22,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:22,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:22,441 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 18:56:22,444 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 18:56:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:56:22,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:56:22,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:22,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:22,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619295284] [2024-09-12 18:56:22,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:22,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543179370] [2024-09-12 18:56:22,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543179370] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:22,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:22,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:56:22,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30615811] [2024-09-12 18:56:22,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:22,591 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:22,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:22,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:22,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:22,593 INFO L87 Difference]: Start difference. First operand 196 states and 204 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:56:22,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:22,687 INFO L93 Difference]: Finished difference Result 196 states and 204 transitions. [2024-09-12 18:56:22,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:22,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2024-09-12 18:56:22,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:22,689 INFO L225 Difference]: With dead ends: 196 [2024-09-12 18:56:22,690 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:56:22,690 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:22,691 INFO L434 NwaCegarLoop]: 180 mSDtfsCounter, 8 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:22,691 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 707 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:56:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:56:22,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-09-12 18:56:22,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 108 states have (on average 1.7037037037037037) internal successors, (184), 181 states have internal predecessors, (184), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:56:22,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 202 transitions. [2024-09-12 18:56:22,710 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 202 transitions. Word has length 22 [2024-09-12 18:56:22,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:22,710 INFO L474 AbstractCegarLoop]: Abstraction has 194 states and 202 transitions. [2024-09-12 18:56:22,710 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:56:22,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:22,711 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 202 transitions. [2024-09-12 18:56:22,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:56:22,713 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:22,713 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 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 18:56:22,731 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:22,914 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:22,914 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:22,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:22,915 INFO L85 PathProgramCache]: Analyzing trace with hash -913275519, now seen corresponding path program 1 times [2024-09-12 18:56:22,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:22,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836198444] [2024-09-12 18:56:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:22,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:22,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701926504] [2024-09-12 18:56:22,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:22,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:22,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:22,961 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 18:56:22,967 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 18:56:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:56:23,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:23,148 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:23,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:23,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836198444] [2024-09-12 18:56:23,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:23,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701926504] [2024-09-12 18:56:23,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701926504] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:23,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:23,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:56:23,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865418519] [2024-09-12 18:56:23,206 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:23,207 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:23,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:23,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:23,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:56:23,208 INFO L87 Difference]: Start difference. First operand 194 states and 202 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:56:23,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:23,319 INFO L93 Difference]: Finished difference Result 194 states and 202 transitions. [2024-09-12 18:56:23,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:23,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2024-09-12 18:56:23,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:23,321 INFO L225 Difference]: With dead ends: 194 [2024-09-12 18:56:23,321 INFO L226 Difference]: Without dead ends: 191 [2024-09-12 18:56:23,322 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:56:23,322 INFO L434 NwaCegarLoop]: 164 mSDtfsCounter, 145 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:23,323 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 499 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:56:23,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-09-12 18:56:23,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-09-12 18:56:23,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 108 states have (on average 1.6759259259259258) internal successors, (181), 178 states have internal predecessors, (181), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:56:23,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 199 transitions. [2024-09-12 18:56:23,356 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 199 transitions. Word has length 39 [2024-09-12 18:56:23,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:23,357 INFO L474 AbstractCegarLoop]: Abstraction has 191 states and 199 transitions. [2024-09-12 18:56:23,357 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:56:23,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:23,357 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 199 transitions. [2024-09-12 18:56:23,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:56:23,358 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:23,358 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 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 18:56:23,371 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 18:56:23,561 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:23,561 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:23,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:23,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1753230059, now seen corresponding path program 1 times [2024-09-12 18:56:23,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:23,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207699683] [2024-09-12 18:56:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:23,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:56:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:56:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:23,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:23,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207699683] [2024-09-12 18:56:23,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207699683] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:23,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189971618] [2024-09-12 18:56:23,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:23,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:23,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:23,811 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 18:56:23,813 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 18:56:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:56:23,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:23,997 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:23,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:23,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189971618] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:23,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:23,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 18:56:23,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251489132] [2024-09-12 18:56:23,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:23,998 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:56:24,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:24,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:56:24,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:56:24,001 INFO L87 Difference]: Start difference. First operand 191 states and 199 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:24,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:24,213 INFO L93 Difference]: Finished difference Result 191 states and 199 transitions. [2024-09-12 18:56:24,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:56:24,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 40 [2024-09-12 18:56:24,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:24,215 INFO L225 Difference]: With dead ends: 191 [2024-09-12 18:56:24,216 INFO L226 Difference]: Without dead ends: 190 [2024-09-12 18:56:24,216 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:56:24,217 INFO L434 NwaCegarLoop]: 164 mSDtfsCounter, 144 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:24,217 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 653 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:56:24,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-09-12 18:56:24,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-09-12 18:56:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 108 states have (on average 1.6666666666666667) internal successors, (180), 177 states have internal predecessors, (180), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:56:24,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 198 transitions. [2024-09-12 18:56:24,242 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 198 transitions. Word has length 40 [2024-09-12 18:56:24,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:24,242 INFO L474 AbstractCegarLoop]: Abstraction has 190 states and 198 transitions. [2024-09-12 18:56:24,242 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:24,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:24,243 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 198 transitions. [2024-09-12 18:56:24,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:56:24,244 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:24,244 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 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 18:56:24,260 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:24,444 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:56:24,445 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:24,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:24,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1226909389, now seen corresponding path program 1 times [2024-09-12 18:56:24,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:24,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301810670] [2024-09-12 18:56:24,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:24,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:56:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:56:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,507 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:24,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:24,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301810670] [2024-09-12 18:56:24,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301810670] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:24,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:24,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:24,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603257036] [2024-09-12 18:56:24,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:24,508 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:56:24,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:24,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:56:24,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:56:24,508 INFO L87 Difference]: Start difference. First operand 190 states and 198 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:24,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:24,614 INFO L93 Difference]: Finished difference Result 196 states and 204 transitions. [2024-09-12 18:56:24,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:56:24,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-09-12 18:56:24,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:24,618 INFO L225 Difference]: With dead ends: 196 [2024-09-12 18:56:24,618 INFO L226 Difference]: Without dead ends: 193 [2024-09-12 18:56:24,618 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 18:56:24,619 INFO L434 NwaCegarLoop]: 161 mSDtfsCounter, 99 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:24,619 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 233 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:56:24,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-09-12 18:56:24,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-09-12 18:56:24,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 112 states have (on average 1.6339285714285714) internal successors, (183), 180 states have internal predecessors, (183), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:56:24,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 201 transitions. [2024-09-12 18:56:24,649 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 201 transitions. Word has length 42 [2024-09-12 18:56:24,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:24,649 INFO L474 AbstractCegarLoop]: Abstraction has 193 states and 201 transitions. [2024-09-12 18:56:24,649 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:24,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:24,650 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 201 transitions. [2024-09-12 18:56:24,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 18:56:24,651 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:24,651 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 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 18:56:24,651 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:56:24,651 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:24,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:24,652 INFO L85 PathProgramCache]: Analyzing trace with hash -620514516, now seen corresponding path program 1 times [2024-09-12 18:56:24,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:24,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580973044] [2024-09-12 18:56:24,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:24,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:56:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:56:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,723 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:24,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:24,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580973044] [2024-09-12 18:56:24,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580973044] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:24,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:24,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:24,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490347739] [2024-09-12 18:56:24,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:24,725 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:24,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:24,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:24,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:24,726 INFO L87 Difference]: Start difference. First operand 193 states and 201 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:24,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:24,898 INFO L93 Difference]: Finished difference Result 197 states and 205 transitions. [2024-09-12 18:56:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:24,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2024-09-12 18:56:24,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:24,901 INFO L225 Difference]: With dead ends: 197 [2024-09-12 18:56:24,901 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:56:24,902 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 18:56:24,902 INFO L434 NwaCegarLoop]: 149 mSDtfsCounter, 109 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:24,903 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 353 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:56:24,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:56:24,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-09-12 18:56:24,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 114 states have (on average 1.6140350877192982) internal successors, (184), 181 states have internal predecessors, (184), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:56:24,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 202 transitions. [2024-09-12 18:56:24,938 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 202 transitions. Word has length 43 [2024-09-12 18:56:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:24,940 INFO L474 AbstractCegarLoop]: Abstraction has 194 states and 202 transitions. [2024-09-12 18:56:24,940 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:24,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:24,940 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 202 transitions. [2024-09-12 18:56:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 18:56:24,942 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:24,943 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:24,943 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:56:24,943 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:24,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:24,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2056080721, now seen corresponding path program 1 times [2024-09-12 18:56:24,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:24,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881275012] [2024-09-12 18:56:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:24,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:24,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133092696] [2024-09-12 18:56:24,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:24,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:24,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:24,961 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 18:56:24,963 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 18:56:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:25,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-09-12 18:56:25,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:25,035 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:25,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:25,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:25,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881275012] [2024-09-12 18:56:25,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:25,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133092696] [2024-09-12 18:56:25,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133092696] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:25,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:25,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:25,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142836418] [2024-09-12 18:56:25,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:25,036 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:56:25,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:25,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:56:25,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:56:25,037 INFO L87 Difference]: Start difference. First operand 194 states and 202 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:25,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:25,210 INFO L93 Difference]: Finished difference Result 300 states and 321 transitions. [2024-09-12 18:56:25,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:56:25,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 44 [2024-09-12 18:56:25,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:25,212 INFO L225 Difference]: With dead ends: 300 [2024-09-12 18:56:25,212 INFO L226 Difference]: Without dead ends: 297 [2024-09-12 18:56:25,213 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 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 18:56:25,213 INFO L434 NwaCegarLoop]: 166 mSDtfsCounter, 97 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:25,213 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 320 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:56:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-09-12 18:56:25,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 257. [2024-09-12 18:56:25,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 174 states have (on average 1.6436781609195403) internal successors, (286), 241 states have internal predecessors, (286), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:56:25,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 310 transitions. [2024-09-12 18:56:25,273 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 310 transitions. Word has length 44 [2024-09-12 18:56:25,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:25,274 INFO L474 AbstractCegarLoop]: Abstraction has 257 states and 310 transitions. [2024-09-12 18:56:25,275 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:25,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:25,275 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 310 transitions. [2024-09-12 18:56:25,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 18:56:25,276 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:25,276 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:25,294 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:25,477 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:25,477 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:25,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:25,478 INFO L85 PathProgramCache]: Analyzing trace with hash 686007182, now seen corresponding path program 1 times [2024-09-12 18:56:25,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:25,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632512786] [2024-09-12 18:56:25,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:25,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:25,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:25,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:25,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:25,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:56:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:25,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:56:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:25,613 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:25,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:25,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632512786] [2024-09-12 18:56:25,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632512786] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:25,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670396722] [2024-09-12 18:56:25,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:25,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:25,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:25,616 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 18:56:25,619 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 18:56:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:25,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:56:25,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:25,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:26,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670396722] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:26,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:26,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-09-12 18:56:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659623964] [2024-09-12 18:56:26,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:26,114 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:56:26,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:56:26,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:56:26,115 INFO L87 Difference]: Start difference. First operand 257 states and 310 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 18:56:26,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:26,703 INFO L93 Difference]: Finished difference Result 398 states and 430 transitions. [2024-09-12 18:56:26,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:56:26,704 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 45 [2024-09-12 18:56:26,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:26,706 INFO L225 Difference]: With dead ends: 398 [2024-09-12 18:56:26,706 INFO L226 Difference]: Without dead ends: 395 [2024-09-12 18:56:26,706 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:56:26,707 INFO L434 NwaCegarLoop]: 138 mSDtfsCounter, 377 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:26,707 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1145 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:56:26,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-09-12 18:56:26,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 301. [2024-09-12 18:56:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 216 states have (on average 1.6388888888888888) internal successors, (354), 283 states have internal predecessors, (354), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:56:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 382 transitions. [2024-09-12 18:56:26,790 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 382 transitions. Word has length 45 [2024-09-12 18:56:26,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:26,791 INFO L474 AbstractCegarLoop]: Abstraction has 301 states and 382 transitions. [2024-09-12 18:56:26,791 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 18:56:26,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:26,791 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 382 transitions. [2024-09-12 18:56:26,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:56:26,792 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:26,792 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:26,809 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 18:56:26,996 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:56:26,997 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:26,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:26,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2122908656, now seen corresponding path program 1 times [2024-09-12 18:56:26,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:26,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380819922] [2024-09-12 18:56:26,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:26,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:27,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286347455] [2024-09-12 18:56:27,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:27,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:27,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:27,013 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 18:56:27,015 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 18:56:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:27,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:56:27,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:27,216 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:27,350 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:56:27,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:27,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380819922] [2024-09-12 18:56:27,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:27,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286347455] [2024-09-12 18:56:27,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286347455] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:27,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:27,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-09-12 18:56:27,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020875980] [2024-09-12 18:56:27,352 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:27,352 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:56:27,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:27,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:56:27,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:56:27,356 INFO L87 Difference]: Start difference. First operand 301 states and 382 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:56:28,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:28,512 INFO L93 Difference]: Finished difference Result 436 states and 556 transitions. [2024-09-12 18:56:28,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:56:28,513 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 47 [2024-09-12 18:56:28,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:28,516 INFO L225 Difference]: With dead ends: 436 [2024-09-12 18:56:28,516 INFO L226 Difference]: Without dead ends: 410 [2024-09-12 18:56:28,517 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:56:28,517 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 216 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:28,517 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 388 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:56:28,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-09-12 18:56:28,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 383. [2024-09-12 18:56:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 312 states have (on average 1.4455128205128205) internal successors, (451), 362 states have internal predecessors, (451), 18 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:56:28,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 485 transitions. [2024-09-12 18:56:28,618 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 485 transitions. Word has length 47 [2024-09-12 18:56:28,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:28,618 INFO L474 AbstractCegarLoop]: Abstraction has 383 states and 485 transitions. [2024-09-12 18:56:28,618 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:56:28,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 485 transitions. [2024-09-12 18:56:28,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:56:28,620 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:28,620 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:28,637 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 18:56:28,823 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:56:28,824 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:28,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:28,824 INFO L85 PathProgramCache]: Analyzing trace with hash 5755986, now seen corresponding path program 1 times [2024-09-12 18:56:28,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:28,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719731539] [2024-09-12 18:56:28,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:28,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:28,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599272088] [2024-09-12 18:56:28,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:28,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:28,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:28,838 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 18:56:28,840 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 18:56:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:28,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:56:28,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:28,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:28,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:28,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719731539] [2024-09-12 18:56:28,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:28,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599272088] [2024-09-12 18:56:28,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599272088] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:28,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:28,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:28,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494833519] [2024-09-12 18:56:28,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:28,909 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:56:28,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:28,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:56:28,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:56:28,910 INFO L87 Difference]: Start difference. First operand 383 states and 485 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:29,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:29,238 INFO L93 Difference]: Finished difference Result 586 states and 743 transitions. [2024-09-12 18:56:29,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:56:29,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 49 [2024-09-12 18:56:29,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:29,242 INFO L225 Difference]: With dead ends: 586 [2024-09-12 18:56:29,242 INFO L226 Difference]: Without dead ends: 560 [2024-09-12 18:56:29,243 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 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 18:56:29,243 INFO L434 NwaCegarLoop]: 128 mSDtfsCounter, 89 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:29,244 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 220 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:56:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-09-12 18:56:29,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 546. [2024-09-12 18:56:29,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 470 states have (on average 1.3425531914893618) internal successors, (631), 520 states have internal predecessors, (631), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:56:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 675 transitions. [2024-09-12 18:56:29,380 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 675 transitions. Word has length 49 [2024-09-12 18:56:29,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:29,380 INFO L474 AbstractCegarLoop]: Abstraction has 546 states and 675 transitions. [2024-09-12 18:56:29,380 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:29,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:29,381 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 675 transitions. [2024-09-12 18:56:29,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:56:29,382 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:29,382 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:29,398 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 18:56:29,582 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:29,583 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:29,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:29,583 INFO L85 PathProgramCache]: Analyzing trace with hash -256889496, now seen corresponding path program 1 times [2024-09-12 18:56:29,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:29,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106018219] [2024-09-12 18:56:29,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:29,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:29,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046637603] [2024-09-12 18:56:29,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:29,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:29,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:29,597 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 18:56:29,599 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 18:56:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:56:29,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:29,867 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:29,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:29,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:29,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106018219] [2024-09-12 18:56:29,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:29,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046637603] [2024-09-12 18:56:29,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046637603] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:29,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:29,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:56:29,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565539360] [2024-09-12 18:56:29,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:29,868 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:56:29,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:29,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:56:29,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:56:29,869 INFO L87 Difference]: Start difference. First operand 546 states and 675 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:32,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:56:34,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:56:34,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:34,336 INFO L93 Difference]: Finished difference Result 552 states and 680 transitions. [2024-09-12 18:56:34,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:56:34,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 63 [2024-09-12 18:56:34,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:34,339 INFO L225 Difference]: With dead ends: 552 [2024-09-12 18:56:34,340 INFO L226 Difference]: Without dead ends: 550 [2024-09-12 18:56:34,340 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:56:34,342 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 48 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:34,343 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 372 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-09-12 18:56:34,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-09-12 18:56:34,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-09-12 18:56:34,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 473 states have (on average 1.3403805496828753) internal successors, (634), 523 states have internal predecessors, (634), 23 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:56:34,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 678 transitions. [2024-09-12 18:56:34,484 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 678 transitions. Word has length 63 [2024-09-12 18:56:34,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:34,484 INFO L474 AbstractCegarLoop]: Abstraction has 550 states and 678 transitions. [2024-09-12 18:56:34,484 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:56:34,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:34,485 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 678 transitions. [2024-09-12 18:56:34,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:56:34,486 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:34,486 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:34,502 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 18:56:34,686 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:34,687 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:34,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:34,687 INFO L85 PathProgramCache]: Analyzing trace with hash 536449441, now seen corresponding path program 1 times [2024-09-12 18:56:34,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:34,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949566653] [2024-09-12 18:56:34,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:34,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:34,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:34,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:34,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:34,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:56:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:34,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:56:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:34,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:56:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:34,968 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:34,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:34,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949566653] [2024-09-12 18:56:34,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949566653] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:34,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451958379] [2024-09-12 18:56:34,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:34,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:34,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:34,971 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 18:56:34,972 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 18:56:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:35,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:56:35,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:35,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:35,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451958379] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:35,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:56:35,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 12 [2024-09-12 18:56:35,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698622138] [2024-09-12 18:56:35,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:35,239 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:56:35,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:35,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:56:35,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:56:35,239 INFO L87 Difference]: Start difference. First operand 550 states and 678 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 18:56:42,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:56:42,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:42,400 INFO L93 Difference]: Finished difference Result 612 states and 757 transitions. [2024-09-12 18:56:42,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:56:42,400 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 1 states have call successors, (8) Word has length 85 [2024-09-12 18:56:42,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:42,407 INFO L225 Difference]: With dead ends: 612 [2024-09-12 18:56:42,408 INFO L226 Difference]: Without dead ends: 593 [2024-09-12 18:56:42,408 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:56:42,408 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 132 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:42,409 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 516 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-09-12 18:56:42,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-09-12 18:56:42,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2024-09-12 18:56:42,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 512 states have (on average 1.33984375) internal successors, (686), 564 states have internal predecessors, (686), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (24), 21 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:56:42,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 735 transitions. [2024-09-12 18:56:42,576 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 735 transitions. Word has length 85 [2024-09-12 18:56:42,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:42,577 INFO L474 AbstractCegarLoop]: Abstraction has 593 states and 735 transitions. [2024-09-12 18:56:42,577 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 18:56:42,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 735 transitions. [2024-09-12 18:56:42,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 18:56:42,578 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:42,578 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:42,597 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 18:56:42,782 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:56:42,783 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:42,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:42,783 INFO L85 PathProgramCache]: Analyzing trace with hash 193759975, now seen corresponding path program 1 times [2024-09-12 18:56:42,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:42,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400235369] [2024-09-12 18:56:42,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:42,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:42,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:42,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:42,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:42,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:56:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:42,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:56:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:42,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:56:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:42,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:56:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:42,881 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:42,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:42,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400235369] [2024-09-12 18:56:42,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400235369] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:42,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:42,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:42,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045526008] [2024-09-12 18:56:42,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:42,884 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:42,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:42,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:42,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:42,885 INFO L87 Difference]: Start difference. First operand 593 states and 735 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:56:43,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:43,319 INFO L93 Difference]: Finished difference Result 606 states and 736 transitions. [2024-09-12 18:56:43,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:43,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2024-09-12 18:56:43,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:43,324 INFO L225 Difference]: With dead ends: 606 [2024-09-12 18:56:43,324 INFO L226 Difference]: Without dead ends: 605 [2024-09-12 18:56:43,324 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 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 18:56:43,325 INFO L434 NwaCegarLoop]: 166 mSDtfsCounter, 57 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:43,325 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 284 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:56:43,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-09-12 18:56:43,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 593. [2024-09-12 18:56:43,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 512 states have (on average 1.3359375) internal successors, (684), 564 states have internal predecessors, (684), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (24), 21 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:56:43,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 733 transitions. [2024-09-12 18:56:43,512 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 733 transitions. Word has length 91 [2024-09-12 18:56:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:43,512 INFO L474 AbstractCegarLoop]: Abstraction has 593 states and 733 transitions. [2024-09-12 18:56:43,512 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:56:43,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:43,513 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 733 transitions. [2024-09-12 18:56:43,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-09-12 18:56:43,514 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:43,515 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:43,515 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:56:43,515 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:43,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:43,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1711592111, now seen corresponding path program 1 times [2024-09-12 18:56:43,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:43,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281477157] [2024-09-12 18:56:43,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:43,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:43,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:43,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:43,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:43,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:56:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:43,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:56:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:43,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:56:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:43,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:56:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:43,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:43,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281477157] [2024-09-12 18:56:43,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281477157] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:43,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:43,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:56:43,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563524670] [2024-09-12 18:56:43,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:43,645 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:43,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:43,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:43,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:43,646 INFO L87 Difference]: Start difference. First operand 593 states and 733 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:56:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:44,240 INFO L93 Difference]: Finished difference Result 598 states and 734 transitions. [2024-09-12 18:56:44,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:44,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 92 [2024-09-12 18:56:44,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:44,245 INFO L225 Difference]: With dead ends: 598 [2024-09-12 18:56:44,245 INFO L226 Difference]: Without dead ends: 597 [2024-09-12 18:56:44,245 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:56:44,246 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 303 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:44,246 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 248 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:56:44,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-09-12 18:56:44,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 593. [2024-09-12 18:56:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 512 states have (on average 1.33203125) internal successors, (682), 564 states have internal predecessors, (682), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (24), 21 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:56:44,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 731 transitions. [2024-09-12 18:56:44,448 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 731 transitions. Word has length 92 [2024-09-12 18:56:44,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:44,448 INFO L474 AbstractCegarLoop]: Abstraction has 593 states and 731 transitions. [2024-09-12 18:56:44,448 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:56:44,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:44,449 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 731 transitions. [2024-09-12 18:56:44,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 18:56:44,450 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:44,450 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:44,450 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:56:44,450 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:44,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:44,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1564758707, now seen corresponding path program 1 times [2024-09-12 18:56:44,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:44,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430552480] [2024-09-12 18:56:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:44,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:44,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:44,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:44,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:44,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:56:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:44,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:56:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:44,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:56:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:44,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:56:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:44,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:44,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430552480] [2024-09-12 18:56:44,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430552480] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:44,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298852568] [2024-09-12 18:56:44,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:44,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:44,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:44,596 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 18:56:44,611 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 18:56:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:44,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:56:44,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:44,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:45,001 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:45,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298852568] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:45,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:56:45,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-09-12 18:56:45,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816221085] [2024-09-12 18:56:45,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:45,002 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:56:45,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:45,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:56:45,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:56:45,004 INFO L87 Difference]: Start difference. First operand 593 states and 731 transitions. Second operand has 14 states, 13 states have (on average 14.0) internal successors, (182), 14 states have internal predecessors, (182), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:56:46,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:46,164 INFO L93 Difference]: Finished difference Result 1229 states and 1526 transitions. [2024-09-12 18:56:46,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:56:46,165 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.0) internal successors, (182), 14 states have internal predecessors, (182), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 96 [2024-09-12 18:56:46,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:46,169 INFO L225 Difference]: With dead ends: 1229 [2024-09-12 18:56:46,169 INFO L226 Difference]: Without dead ends: 688 [2024-09-12 18:56:46,170 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:56:46,170 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 1348 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:46,171 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 436 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:56:46,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-09-12 18:56:46,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 650. [2024-09-12 18:56:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 568 states have (on average 1.323943661971831) internal successors, (752), 617 states have internal predecessors, (752), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:56:46,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 807 transitions. [2024-09-12 18:56:46,414 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 807 transitions. Word has length 96 [2024-09-12 18:56:46,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:46,414 INFO L474 AbstractCegarLoop]: Abstraction has 650 states and 807 transitions. [2024-09-12 18:56:46,415 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.0) internal successors, (182), 14 states have internal predecessors, (182), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:56:46,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:46,415 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 807 transitions. [2024-09-12 18:56:46,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 18:56:46,416 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:46,416 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:46,432 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:46,620 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:56:46,621 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:56:46,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:46,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1262879801, now seen corresponding path program 1 times [2024-09-12 18:56:46,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:46,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715083400] [2024-09-12 18:56:46,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:46,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:46,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:46,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:46,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:46,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:56:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:46,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:56:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:46,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:56:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:46,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:56:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:46,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:46,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715083400] [2024-09-12 18:56:46,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715083400] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:46,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828415257] [2024-09-12 18:56:46,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:46,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:46,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:46,718 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 18:56:46,720 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 18:56:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:46,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:56:46,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:08,167 WARN L876 $PredicateComparison]: unable to prove that (exists ((v_main_~R~0_45 Int)) (let ((.cse0 (* v_main_~R~0_45 v_main_~R~0_45))) (and (<= .cse0 9223372036854775807) (<= (+ c_main_~A~0 c_main_~r~0 1) .cse0)))) is different from true [2024-09-12 18:57:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 3 not checked. [2024-09-12 18:57:08,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:09,550 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:57:09,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828415257] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:57:09,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:57:09,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-09-12 18:57:09,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521411358] [2024-09-12 18:57:09,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:09,552 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:57:09,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:09,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:57:09,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=105, Unknown=7, NotChecked=22, Total=182 [2024-09-12 18:57:09,553 INFO L87 Difference]: Start difference. First operand 650 states and 807 transitions. Second operand has 14 states, 13 states have (on average 13.384615384615385) internal successors, (174), 14 states have internal predecessors, (174), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:57:32,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:57:36,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:57:42,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:57:43,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:57:47,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:57:48,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:57:49,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:57:53,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:57:57,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:58:01,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:58:02,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:58:06,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:58:10,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:58:14,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:58:19,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:58:24,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:58:46,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:46,273 INFO L93 Difference]: Finished difference Result 795 states and 982 transitions. [2024-09-12 18:58:46,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:58:46,273 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.384615384615385) internal successors, (174), 14 states have internal predecessors, (174), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 97 [2024-09-12 18:58:46,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:46,278 INFO L225 Difference]: With dead ends: 795 [2024-09-12 18:58:46,278 INFO L226 Difference]: Without dead ends: 787 [2024-09-12 18:58:46,279 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 59.6s TimeCoverageRelationStatistics Valid=142, Invalid=307, Unknown=17, NotChecked=40, Total=506 [2024-09-12 18:58:46,279 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 476 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 44 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 423 IncrementalHoareTripleChecker+Unchecked, 59.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:46,280 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 569 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1127 Invalid, 22 Unknown, 423 Unchecked, 59.1s Time] [2024-09-12 18:58:46,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-09-12 18:58:46,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 753. [2024-09-12 18:58:46,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 672 states have (on average 1.2991071428571428) internal successors, (873), 715 states have internal predecessors, (873), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 18:58:46,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 938 transitions. [2024-09-12 18:58:46,596 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 938 transitions. Word has length 97 [2024-09-12 18:58:46,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:46,597 INFO L474 AbstractCegarLoop]: Abstraction has 753 states and 938 transitions. [2024-09-12 18:58:46,597 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.384615384615385) internal successors, (174), 14 states have internal predecessors, (174), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:58:46,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:46,597 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 938 transitions. [2024-09-12 18:58:46,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:58:46,599 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:46,599 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:46,616 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 18:58:46,800 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:58:46,800 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:58:46,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1720175937, now seen corresponding path program 1 times [2024-09-12 18:58:46,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:46,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005245244] [2024-09-12 18:58:46,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:46,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:46,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516444718] [2024-09-12 18:58:46,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:46,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:46,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:46,825 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 18:58:46,826 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 18:58:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:58:46,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:46,935 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:58:46,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:58:47,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:47,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005245244] [2024-09-12 18:58:47,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:47,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516444718] [2024-09-12 18:58:47,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516444718] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:47,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:47,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 18:58:47,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917326138] [2024-09-12 18:58:47,072 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:47,072 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:58:47,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:47,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:58:47,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:58:47,073 INFO L87 Difference]: Start difference. First operand 753 states and 938 transitions. Second operand has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:58:48,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:48,057 INFO L93 Difference]: Finished difference Result 1348 states and 1738 transitions. [2024-09-12 18:58:48,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:58:48,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 103 [2024-09-12 18:58:48,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:48,063 INFO L225 Difference]: With dead ends: 1348 [2024-09-12 18:58:48,063 INFO L226 Difference]: Without dead ends: 1312 [2024-09-12 18:58:48,064 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:58:48,064 INFO L434 NwaCegarLoop]: 139 mSDtfsCounter, 432 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:48,065 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 381 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:58:48,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2024-09-12 18:58:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1245. [2024-09-12 18:58:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1159 states have (on average 1.176013805004314) internal successors, (1363), 1186 states have internal predecessors, (1363), 54 states have call successors, (54), 7 states have call predecessors, (54), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 18:58:48,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1470 transitions. [2024-09-12 18:58:48,546 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1470 transitions. Word has length 103 [2024-09-12 18:58:48,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:48,547 INFO L474 AbstractCegarLoop]: Abstraction has 1245 states and 1470 transitions. [2024-09-12 18:58:48,547 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:58:48,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:48,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1470 transitions. [2024-09-12 18:58:48,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 18:58:48,548 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:48,548 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:58:48,565 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 18:58:48,749 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:48,749 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr72ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:58:48,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:48,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1403267468, now seen corresponding path program 1 times [2024-09-12 18:58:48,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:48,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359732781] [2024-09-12 18:58:48,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:48,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:58:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:58:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,850 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:58:48,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:48,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359732781] [2024-09-12 18:58:48,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359732781] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:48,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:48,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:58:48,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642963782] [2024-09-12 18:58:48,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:48,852 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:58:48,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:48,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:58:48,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:58:48,853 INFO L87 Difference]: Start difference. First operand 1245 states and 1470 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:58:49,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:49,455 INFO L93 Difference]: Finished difference Result 1245 states and 1470 transitions. [2024-09-12 18:58:49,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:58:49,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 116 [2024-09-12 18:58:49,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:49,460 INFO L225 Difference]: With dead ends: 1245 [2024-09-12 18:58:49,460 INFO L226 Difference]: Without dead ends: 1244 [2024-09-12 18:58:49,461 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:58:49,461 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 202 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:49,461 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 197 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:49,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2024-09-12 18:58:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1244. [2024-09-12 18:58:50,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1159 states have (on average 1.17083692838654) internal successors, (1357), 1185 states have internal predecessors, (1357), 54 states have call successors, (54), 7 states have call predecessors, (54), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 18:58:50,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1464 transitions. [2024-09-12 18:58:50,032 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1464 transitions. Word has length 116 [2024-09-12 18:58:50,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:50,032 INFO L474 AbstractCegarLoop]: Abstraction has 1244 states and 1464 transitions. [2024-09-12 18:58:50,033 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:58:50,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1464 transitions. [2024-09-12 18:58:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:58:50,034 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:50,034 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:58:50,035 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 18:58:50,035 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr73ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:58:50,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:50,035 INFO L85 PathProgramCache]: Analyzing trace with hash 551618791, now seen corresponding path program 1 times [2024-09-12 18:58:50,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:50,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262623935] [2024-09-12 18:58:50,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:50,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:50,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:50,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:50,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:50,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:50,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:50,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:50,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:58:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:50,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:58:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:58:50,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:50,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262623935] [2024-09-12 18:58:50,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262623935] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:50,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:50,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:58:50,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692487209] [2024-09-12 18:58:50,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:50,114 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:58:50,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:50,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:58:50,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:58:50,115 INFO L87 Difference]: Start difference. First operand 1244 states and 1464 transitions. Second operand has 4 states, 3 states have (on average 28.333333333333332) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:58:50,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:50,822 INFO L93 Difference]: Finished difference Result 1297 states and 1544 transitions. [2024-09-12 18:58:50,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:58:50,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.333333333333332) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 117 [2024-09-12 18:58:50,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:50,831 INFO L225 Difference]: With dead ends: 1297 [2024-09-12 18:58:50,831 INFO L226 Difference]: Without dead ends: 1296 [2024-09-12 18:58:50,831 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 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 18:58:50,832 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 126 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:50,832 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 219 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:58:50,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2024-09-12 18:58:51,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1243. [2024-09-12 18:58:51,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1159 states have (on average 1.165660051768766) internal successors, (1351), 1184 states have internal predecessors, (1351), 54 states have call successors, (54), 7 states have call predecessors, (54), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 18:58:51,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1458 transitions. [2024-09-12 18:58:51,338 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1458 transitions. Word has length 117 [2024-09-12 18:58:51,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:51,339 INFO L474 AbstractCegarLoop]: Abstraction has 1243 states and 1458 transitions. [2024-09-12 18:58:51,339 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.333333333333332) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:58:51,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1458 transitions. [2024-09-12 18:58:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:58:51,340 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:51,340 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:58:51,340 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 18:58:51,341 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:58:51,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:51,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1683059123, now seen corresponding path program 1 times [2024-09-12 18:58:51,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:51,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216702993] [2024-09-12 18:58:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:51,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:51,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028269111] [2024-09-12 18:58:51,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:51,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:51,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:51,362 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 18:58:51,367 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 18:58:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:51,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:58:51,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-12 18:58:51,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:52,209 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-12 18:58:52,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:52,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216702993] [2024-09-12 18:58:52,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:52,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028269111] [2024-09-12 18:58:52,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028269111] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:52,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:52,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 13 [2024-09-12 18:58:52,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944632469] [2024-09-12 18:58:52,210 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:52,210 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:58:52,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:52,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:58:52,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:58:52,211 INFO L87 Difference]: Start difference. First operand 1243 states and 1458 transitions. Second operand has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 12 states have internal predecessors, (162), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:58:56,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:56,640 INFO L93 Difference]: Finished difference Result 1270 states and 1480 transitions. [2024-09-12 18:58:56,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:58:56,641 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 12 states have internal predecessors, (162), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2024-09-12 18:58:56,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:56,646 INFO L225 Difference]: With dead ends: 1270 [2024-09-12 18:58:56,646 INFO L226 Difference]: Without dead ends: 1268 [2024-09-12 18:58:56,647 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 220 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:58:56,647 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 301 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:56,647 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 464 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-09-12 18:58:56,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-09-12 18:58:57,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1247. [2024-09-12 18:58:57,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1162 states have (on average 1.1652323580034423) internal successors, (1354), 1187 states have internal predecessors, (1354), 54 states have call successors, (54), 8 states have call predecessors, (54), 7 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 18:58:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1461 transitions. [2024-09-12 18:58:57,108 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1461 transitions. Word has length 117 [2024-09-12 18:58:57,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:57,108 INFO L474 AbstractCegarLoop]: Abstraction has 1247 states and 1461 transitions. [2024-09-12 18:58:57,108 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 12 states have internal predecessors, (162), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:58:57,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:57,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1461 transitions. [2024-09-12 18:58:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 18:58:57,109 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:57,110 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:58:57,126 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 18:58:57,314 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:57,315 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:58:57,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:57,315 INFO L85 PathProgramCache]: Analyzing trace with hash 571164971, now seen corresponding path program 1 times [2024-09-12 18:58:57,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:57,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073805026] [2024-09-12 18:58:57,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:57,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:58:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 18:58:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,383 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-09-12 18:58:57,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:57,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073805026] [2024-09-12 18:58:57,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073805026] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:57,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:57,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:58:57,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497770641] [2024-09-12 18:58:57,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:57,386 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:58:57,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:57,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:58:57,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:58:57,387 INFO L87 Difference]: Start difference. First operand 1247 states and 1461 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:58:58,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:58,132 INFO L93 Difference]: Finished difference Result 1248 states and 1461 transitions. [2024-09-12 18:58:58,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:58:58,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 120 [2024-09-12 18:58:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:58,137 INFO L225 Difference]: With dead ends: 1248 [2024-09-12 18:58:58,137 INFO L226 Difference]: Without dead ends: 1247 [2024-09-12 18:58:58,137 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 18:58:58,138 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 94 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:58,139 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 193 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:58:58,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2024-09-12 18:58:58,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1246. [2024-09-12 18:58:58,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1162 states have (on average 1.1583476764199656) internal successors, (1346), 1186 states have internal predecessors, (1346), 54 states have call successors, (54), 8 states have call predecessors, (54), 7 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 18:58:58,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1453 transitions. [2024-09-12 18:58:58,600 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1453 transitions. Word has length 120 [2024-09-12 18:58:58,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:58,601 INFO L474 AbstractCegarLoop]: Abstraction has 1246 states and 1453 transitions. [2024-09-12 18:58:58,601 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:58:58,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:58,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1453 transitions. [2024-09-12 18:58:58,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-09-12 18:58:58,602 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:58,602 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:58:58,602 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-09-12 18:58:58,602 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:58:58,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:58,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1179079723, now seen corresponding path program 1 times [2024-09-12 18:58:58,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:58,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685875033] [2024-09-12 18:58:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:58,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:58:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:58:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,696 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:58:58,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:58,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685875033] [2024-09-12 18:58:58,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685875033] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:58,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051289214] [2024-09-12 18:58:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:58,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:58,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:58,698 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 18:58:58,700 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 18:58:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:58:58,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:59,012 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:58:59,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:59,189 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:58:59,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051289214] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:59,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:58:59,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 12 [2024-09-12 18:58:59,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484338989] [2024-09-12 18:58:59,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:59,191 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:58:59,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:59,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:58:59,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:58:59,192 INFO L87 Difference]: Start difference. First operand 1246 states and 1453 transitions. Second operand has 13 states, 12 states have (on average 20.916666666666668) internal successors, (251), 13 states have internal predecessors, (251), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-09-12 18:58:59,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:59,959 INFO L93 Difference]: Finished difference Result 1247 states and 1453 transitions. [2024-09-12 18:58:59,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:58:59,960 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 20.916666666666668) internal successors, (251), 13 states have internal predecessors, (251), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 121 [2024-09-12 18:58:59,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:59,964 INFO L225 Difference]: With dead ends: 1247 [2024-09-12 18:58:59,964 INFO L226 Difference]: Without dead ends: 1245 [2024-09-12 18:58:59,965 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:58:59,965 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 113 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:59,965 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 347 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:58:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2024-09-12 18:59:00,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1245. [2024-09-12 18:59:00,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1162 states have (on average 1.148881239242685) internal successors, (1335), 1185 states have internal predecessors, (1335), 54 states have call successors, (54), 8 states have call predecessors, (54), 7 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 18:59:00,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1442 transitions. [2024-09-12 18:59:00,529 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1442 transitions. Word has length 121 [2024-09-12 18:59:00,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:00,530 INFO L474 AbstractCegarLoop]: Abstraction has 1245 states and 1442 transitions. [2024-09-12 18:59:00,530 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 20.916666666666668) internal successors, (251), 13 states have internal predecessors, (251), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-09-12 18:59:00,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:00,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1442 transitions. [2024-09-12 18:59:00,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-09-12 18:59:00,531 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:00,531 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:00,548 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:59:00,731 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 18:59:00,732 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:59:00,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:00,732 INFO L85 PathProgramCache]: Analyzing trace with hash 526245099, now seen corresponding path program 1 times [2024-09-12 18:59:00,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:00,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147284117] [2024-09-12 18:59:00,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:00,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:59:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:59:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:59:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:59:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:59:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:59:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:59:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 18:59:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,868 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:59:00,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:00,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147284117] [2024-09-12 18:59:00,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147284117] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:59:00,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535436951] [2024-09-12 18:59:00,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:00,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:00,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:00,870 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 18:59:00,872 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 18:59:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:00,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:59:00,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:59:01,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:59:01,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535436951] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:59:01,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:59:01,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-09-12 18:59:01,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138149984] [2024-09-12 18:59:01,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:59:01,170 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:59:01,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:01,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:59:01,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:59:01,170 INFO L87 Difference]: Start difference. First operand 1245 states and 1442 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:59:01,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:01,989 INFO L93 Difference]: Finished difference Result 1316 states and 1528 transitions. [2024-09-12 18:59:01,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:59:01,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 121 [2024-09-12 18:59:01,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:01,996 INFO L225 Difference]: With dead ends: 1316 [2024-09-12 18:59:01,997 INFO L226 Difference]: Without dead ends: 1315 [2024-09-12 18:59:01,997 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:59:01,998 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 119 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:01,998 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 268 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:59:01,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2024-09-12 18:59:02,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1244. [2024-09-12 18:59:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1162 states have (on average 1.1419965576592082) internal successors, (1327), 1184 states have internal predecessors, (1327), 54 states have call successors, (54), 8 states have call predecessors, (54), 7 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 18:59:02,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1434 transitions. [2024-09-12 18:59:02,584 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1434 transitions. Word has length 121 [2024-09-12 18:59:02,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:02,584 INFO L474 AbstractCegarLoop]: Abstraction has 1244 states and 1434 transitions. [2024-09-12 18:59:02,585 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:59:02,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:02,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1434 transitions. [2024-09-12 18:59:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-09-12 18:59:02,586 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:02,586 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:02,603 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 18:59:02,786 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:59:02,786 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:59:02,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:02,787 INFO L85 PathProgramCache]: Analyzing trace with hash -2103234050, now seen corresponding path program 1 times [2024-09-12 18:59:02,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:02,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858777703] [2024-09-12 18:59:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:02,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:59:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:59:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:59:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:59:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:59:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:59:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:59:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:59:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:59:02,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:02,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858777703] [2024-09-12 18:59:02,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858777703] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:59:02,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520389444] [2024-09-12 18:59:02,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:02,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:02,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:02,895 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:02,897 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 18:59:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:02,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:59:02,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:03,225 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:59:03,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:03,404 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:59:03,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520389444] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:03,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:59:03,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-09-12 18:59:03,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554283040] [2024-09-12 18:59:03,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:03,406 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:59:03,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:03,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:59:03,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:59:03,407 INFO L87 Difference]: Start difference. First operand 1244 states and 1434 transitions. Second operand has 15 states, 14 states have (on average 18.214285714285715) internal successors, (255), 15 states have internal predecessors, (255), 9 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-09-12 18:59:04,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:04,371 INFO L93 Difference]: Finished difference Result 1266 states and 1454 transitions. [2024-09-12 18:59:04,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:59:04,372 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 18.214285714285715) internal successors, (255), 15 states have internal predecessors, (255), 9 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 122 [2024-09-12 18:59:04,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:04,376 INFO L225 Difference]: With dead ends: 1266 [2024-09-12 18:59:04,376 INFO L226 Difference]: Without dead ends: 1262 [2024-09-12 18:59:04,376 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:59:04,377 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 344 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:04,377 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 387 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:59:04,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2024-09-12 18:59:04,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1188. [2024-09-12 18:59:04,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1111 states have (on average 1.126012601260126) internal successors, (1251), 1131 states have internal predecessors, (1251), 52 states have call successors, (52), 8 states have call predecessors, (52), 7 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 18:59:04,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1354 transitions. [2024-09-12 18:59:04,911 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1354 transitions. Word has length 122 [2024-09-12 18:59:04,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:04,912 INFO L474 AbstractCegarLoop]: Abstraction has 1188 states and 1354 transitions. [2024-09-12 18:59:04,912 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 18.214285714285715) internal successors, (255), 15 states have internal predecessors, (255), 9 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-09-12 18:59:04,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:04,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1354 transitions. [2024-09-12 18:59:04,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 18:59:04,913 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:04,913 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:04,930 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 18:59:05,113 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:05,114 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:59:05,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:05,114 INFO L85 PathProgramCache]: Analyzing trace with hash -775745907, now seen corresponding path program 1 times [2024-09-12 18:59:05,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:05,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767514841] [2024-09-12 18:59:05,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:05,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:05,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:59:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:05,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:59:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:05,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:59:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:05,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:59:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:05,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:59:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:05,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:59:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:05,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:59:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:05,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:59:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-12 18:59:05,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:05,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767514841] [2024-09-12 18:59:05,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767514841] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:59:05,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46056336] [2024-09-12 18:59:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:05,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:05,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:05,281 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:05,282 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 18:59:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:05,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:59:05,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-12 18:59:05,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-12 18:59:05,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46056336] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:05,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:59:05,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-09-12 18:59:05,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579559060] [2024-09-12 18:59:05,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:05,737 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:59:05,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:05,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:59:05,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:59:05,738 INFO L87 Difference]: Start difference. First operand 1188 states and 1354 transitions. Second operand has 14 states, 13 states have (on average 18.307692307692307) internal successors, (238), 14 states have internal predecessors, (238), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-09-12 18:59:06,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:06,726 INFO L93 Difference]: Finished difference Result 1267 states and 1439 transitions. [2024-09-12 18:59:06,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:59:06,727 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.307692307692307) internal successors, (238), 14 states have internal predecessors, (238), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 123 [2024-09-12 18:59:06,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:06,731 INFO L225 Difference]: With dead ends: 1267 [2024-09-12 18:59:06,731 INFO L226 Difference]: Without dead ends: 1266 [2024-09-12 18:59:06,731 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 254 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:59:06,731 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 169 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:06,731 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 292 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:59:06,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-09-12 18:59:07,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1187. [2024-09-12 18:59:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 1111 states have (on average 1.1206120612061206) internal successors, (1245), 1130 states have internal predecessors, (1245), 52 states have call successors, (52), 8 states have call predecessors, (52), 7 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 18:59:07,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1348 transitions. [2024-09-12 18:59:07,326 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1348 transitions. Word has length 123 [2024-09-12 18:59:07,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:07,327 INFO L474 AbstractCegarLoop]: Abstraction has 1187 states and 1348 transitions. [2024-09-12 18:59:07,327 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.307692307692307) internal successors, (238), 14 states have internal predecessors, (238), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-09-12 18:59:07,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1348 transitions. [2024-09-12 18:59:07,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 18:59:07,328 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:07,328 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:07,345 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 18:59:07,528 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:59:07,529 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:59:07,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:07,529 INFO L85 PathProgramCache]: Analyzing trace with hash 341438641, now seen corresponding path program 1 times [2024-09-12 18:59:07,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:07,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366261375] [2024-09-12 18:59:07,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:07,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:07,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:59:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:07,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:59:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:07,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:59:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:07,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:59:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:07,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:59:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:07,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:59:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:07,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:59:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:07,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 18:59:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:07,661 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:59:07,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:07,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366261375] [2024-09-12 18:59:07,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366261375] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:59:07,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85718311] [2024-09-12 18:59:07,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:07,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:07,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:07,663 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:07,664 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 18:59:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:07,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:59:07,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:59:07,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:59:08,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85718311] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:08,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:59:08,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-09-12 18:59:08,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097897922] [2024-09-12 18:59:08,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:08,098 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:59:08,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:08,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:59:08,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:59:08,099 INFO L87 Difference]: Start difference. First operand 1187 states and 1348 transitions. Second operand has 16 states, 15 states have (on average 17.333333333333332) internal successors, (260), 16 states have internal predecessors, (260), 9 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-09-12 18:59:09,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:09,307 INFO L93 Difference]: Finished difference Result 1213 states and 1368 transitions. [2024-09-12 18:59:09,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:59:09,307 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 17.333333333333332) internal successors, (260), 16 states have internal predecessors, (260), 9 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) Word has length 127 [2024-09-12 18:59:09,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:09,311 INFO L225 Difference]: With dead ends: 1213 [2024-09-12 18:59:09,311 INFO L226 Difference]: Without dead ends: 1212 [2024-09-12 18:59:09,312 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=431, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:59:09,312 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 1209 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:09,312 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 482 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:59:09,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2024-09-12 18:59:09,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1186. [2024-09-12 18:59:09,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1111 states have (on average 1.1134113411341133) internal successors, (1237), 1129 states have internal predecessors, (1237), 52 states have call successors, (52), 8 states have call predecessors, (52), 7 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 18:59:09,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1340 transitions. [2024-09-12 18:59:09,987 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1340 transitions. Word has length 127 [2024-09-12 18:59:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:09,988 INFO L474 AbstractCegarLoop]: Abstraction has 1186 states and 1340 transitions. [2024-09-12 18:59:09,988 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 17.333333333333332) internal successors, (260), 16 states have internal predecessors, (260), 9 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-09-12 18:59:09,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1340 transitions. [2024-09-12 18:59:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-09-12 18:59:09,989 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:09,989 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:10,006 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 18:59:10,189 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:59:10,190 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr67ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:59:10,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:10,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1711705418, now seen corresponding path program 1 times [2024-09-12 18:59:10,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:10,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006978833] [2024-09-12 18:59:10,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:10,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:10,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:59:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:10,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:59:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:10,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:59:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:10,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:59:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:10,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:59:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:10,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:59:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:10,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:59:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:10,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:59:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-12 18:59:10,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:10,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006978833] [2024-09-12 18:59:10,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006978833] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:59:10,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034958968] [2024-09-12 18:59:10,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:10,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:10,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:10,365 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:10,366 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 18:59:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:10,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:59:10,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-12 18:59:10,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:18,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034958968] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:59:18,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:59:18,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2024-09-12 18:59:18,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487709978] [2024-09-12 18:59:18,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:18,864 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:59:18,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:18,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:59:18,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=118, Unknown=2, NotChecked=0, Total=156 [2024-09-12 18:59:18,865 INFO L87 Difference]: Start difference. First operand 1186 states and 1340 transitions. Second operand has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:59:20,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:20,248 INFO L93 Difference]: Finished difference Result 1187 states and 1340 transitions. [2024-09-12 18:59:20,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:59:20,248 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 134 [2024-09-12 18:59:20,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:20,252 INFO L225 Difference]: With dead ends: 1187 [2024-09-12 18:59:20,252 INFO L226 Difference]: Without dead ends: 1163 [2024-09-12 18:59:20,252 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=54, Invalid=154, Unknown=2, NotChecked=0, Total=210 [2024-09-12 18:59:20,253 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 215 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:20,253 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 474 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:59:20,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-09-12 18:59:20,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1147. [2024-09-12 18:59:20,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1080 states have (on average 1.0620370370370371) internal successors, (1147), 1090 states have internal predecessors, (1147), 52 states have call successors, (52), 8 states have call predecessors, (52), 7 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 18:59:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1250 transitions. [2024-09-12 18:59:20,824 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1250 transitions. Word has length 134 [2024-09-12 18:59:20,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:20,825 INFO L474 AbstractCegarLoop]: Abstraction has 1147 states and 1250 transitions. [2024-09-12 18:59:20,825 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:59:20,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:20,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1250 transitions. [2024-09-12 18:59:20,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-09-12 18:59:20,826 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:20,826 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:20,839 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 18:59:21,026 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:59:21,027 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:59:21,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:21,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1826205514, now seen corresponding path program 1 times [2024-09-12 18:59:21,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:21,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072472770] [2024-09-12 18:59:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:59:21,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602359547] [2024-09-12 18:59:21,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:21,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:21,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:21,046 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:21,053 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 18:59:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:21,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:59:21,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-09-12 18:59:21,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:21,607 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-09-12 18:59:21,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:21,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072472770] [2024-09-12 18:59:21,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:59:21,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602359547] [2024-09-12 18:59:21,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602359547] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:21,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:59:21,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-09-12 18:59:21,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405668039] [2024-09-12 18:59:21,608 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:21,609 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:59:21,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:21,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:59:21,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:59:21,609 INFO L87 Difference]: Start difference. First operand 1147 states and 1250 transitions. Second operand has 12 states, 12 states have (on average 16.833333333333332) internal successors, (202), 11 states have internal predecessors, (202), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:59:25,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:25,299 INFO L93 Difference]: Finished difference Result 1148 states and 1250 transitions. [2024-09-12 18:59:25,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:59:25,300 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 16.833333333333332) internal successors, (202), 11 states have internal predecessors, (202), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 142 [2024-09-12 18:59:25,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:25,303 INFO L225 Difference]: With dead ends: 1148 [2024-09-12 18:59:25,303 INFO L226 Difference]: Without dead ends: 1146 [2024-09-12 18:59:25,304 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 271 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:59:25,304 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 95 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:25,304 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 430 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-09-12 18:59:25,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2024-09-12 18:59:25,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1145. [2024-09-12 18:59:25,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 1079 states have (on average 1.061167747914736) internal successors, (1145), 1088 states have internal predecessors, (1145), 52 states have call successors, (52), 8 states have call predecessors, (52), 7 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 18:59:25,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1248 transitions. [2024-09-12 18:59:25,971 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1248 transitions. Word has length 142 [2024-09-12 18:59:25,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:25,972 INFO L474 AbstractCegarLoop]: Abstraction has 1145 states and 1248 transitions. [2024-09-12 18:59:25,972 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.833333333333332) internal successors, (202), 11 states have internal predecessors, (202), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:59:25,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:25,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1248 transitions. [2024-09-12 18:59:25,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-09-12 18:59:25,973 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:25,973 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:25,986 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 18:59:26,177 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:26,177 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:59:26,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:26,178 INFO L85 PathProgramCache]: Analyzing trace with hash -412152577, now seen corresponding path program 1 times [2024-09-12 18:59:26,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:26,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991882616] [2024-09-12 18:59:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:26,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:26,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:59:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:26,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:59:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:26,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:59:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:26,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:59:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:26,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:59:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:26,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:59:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:26,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:59:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:26,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 18:59:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:26,278 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 14 proven. 47 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:59:26,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:26,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991882616] [2024-09-12 18:59:26,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991882616] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:59:26,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144394054] [2024-09-12 18:59:26,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:26,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:26,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:26,281 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:26,283 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 18:59:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:26,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:59:26,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:59:26,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:59:26,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144394054] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:59:26,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:59:26,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 18:59:26,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521800615] [2024-09-12 18:59:26,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:59:26,441 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:59:26,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:26,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:59:26,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:59:26,442 INFO L87 Difference]: Start difference. First operand 1145 states and 1248 transitions. Second operand has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:59:27,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:27,205 INFO L93 Difference]: Finished difference Result 1146 states and 1248 transitions. [2024-09-12 18:59:27,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:59:27,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 141 [2024-09-12 18:59:27,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:27,209 INFO L225 Difference]: With dead ends: 1146 [2024-09-12 18:59:27,209 INFO L226 Difference]: Without dead ends: 1127 [2024-09-12 18:59:27,210 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:59:27,210 INFO L434 NwaCegarLoop]: 149 mSDtfsCounter, 224 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:27,211 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 380 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:59:27,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2024-09-12 18:59:27,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1126. [2024-09-12 18:59:27,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1064 states have (on average 1.0281954887218046) internal successors, (1094), 1069 states have internal predecessors, (1094), 52 states have call successors, (52), 8 states have call predecessors, (52), 7 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 18:59:27,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1197 transitions. [2024-09-12 18:59:27,871 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1197 transitions. Word has length 141 [2024-09-12 18:59:27,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:27,871 INFO L474 AbstractCegarLoop]: Abstraction has 1126 states and 1197 transitions. [2024-09-12 18:59:27,871 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:59:27,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:27,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1197 transitions. [2024-09-12 18:59:27,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-09-12 18:59:27,872 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:27,873 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:27,885 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 18:59:28,073 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:28,073 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:59:28,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:28,074 INFO L85 PathProgramCache]: Analyzing trace with hash 773109024, now seen corresponding path program 1 times [2024-09-12 18:59:28,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:28,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557763980] [2024-09-12 18:59:28,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:28,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:59:28,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388879145] [2024-09-12 18:59:28,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:28,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:28,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:28,103 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:28,105 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:59:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:28,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:59:28,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:28,730 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:59:28,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:28,971 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:59:28,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:28,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557763980] [2024-09-12 18:59:28,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:59:28,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388879145] [2024-09-12 18:59:28,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388879145] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:28,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:59:28,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-09-12 18:59:28,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814245937] [2024-09-12 18:59:28,972 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:28,972 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:59:28,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:28,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:59:28,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:59:28,973 INFO L87 Difference]: Start difference. First operand 1126 states and 1197 transitions. Second operand has 13 states, 12 states have (on average 19.333333333333332) internal successors, (232), 13 states have internal predecessors, (232), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-09-12 18:59:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:31,720 INFO L93 Difference]: Finished difference Result 3612 states and 3861 transitions. [2024-09-12 18:59:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:59:31,720 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 19.333333333333332) internal successors, (232), 13 states have internal predecessors, (232), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 155 [2024-09-12 18:59:31,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:31,729 INFO L225 Difference]: With dead ends: 3612 [2024-09-12 18:59:31,729 INFO L226 Difference]: Without dead ends: 3611 [2024-09-12 18:59:31,730 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:59:31,730 INFO L434 NwaCegarLoop]: 146 mSDtfsCounter, 548 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:31,730 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 1128 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:59:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3611 states. [2024-09-12 18:59:33,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3611 to 3602. [2024-09-12 18:59:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3602 states, 3432 states have (on average 1.0285547785547786) internal successors, (3530), 3445 states have internal predecessors, (3530), 160 states have call successors, (160), 8 states have call predecessors, (160), 7 states have return successors, (159), 148 states have call predecessors, (159), 159 states have call successors, (159) [2024-09-12 18:59:33,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3602 states to 3602 states and 3849 transitions. [2024-09-12 18:59:33,790 INFO L78 Accepts]: Start accepts. Automaton has 3602 states and 3849 transitions. Word has length 155 [2024-09-12 18:59:33,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:33,791 INFO L474 AbstractCegarLoop]: Abstraction has 3602 states and 3849 transitions. [2024-09-12 18:59:33,791 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 19.333333333333332) internal successors, (232), 13 states have internal predecessors, (232), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-09-12 18:59:33,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:33,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3602 states and 3849 transitions. [2024-09-12 18:59:33,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-09-12 18:59:33,793 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:33,793 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:33,815 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 18:59:33,994 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:59:33,994 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:59:33,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:33,994 INFO L85 PathProgramCache]: Analyzing trace with hash -154360701, now seen corresponding path program 2 times [2024-09-12 18:59:33,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:33,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133093320] [2024-09-12 18:59:33,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:33,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:59:34,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274346462] [2024-09-12 18:59:34,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:59:34,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:34,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:34,033 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:34,034 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 18:59:34,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:59:34,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:59:34,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:59:34,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-09-12 18:59:34,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:34,604 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-09-12 18:59:34,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:34,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133093320] [2024-09-12 18:59:34,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:59:34,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274346462] [2024-09-12 18:59:34,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274346462] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:34,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:59:34,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-12 18:59:34,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621620025] [2024-09-12 18:59:34,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:34,605 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:59:34,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:34,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:59:34,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:59:34,606 INFO L87 Difference]: Start difference. First operand 3602 states and 3849 transitions. Second operand has 12 states, 11 states have (on average 25.272727272727273) internal successors, (278), 12 states have internal predecessors, (278), 9 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-12 18:59:42,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:59:42,281 INFO L93 Difference]: Finished difference Result 11598 states and 12489 transitions. [2024-09-12 18:59:42,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:59:42,282 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 25.272727272727273) internal successors, (278), 12 states have internal predecessors, (278), 9 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) Word has length 190 [2024-09-12 18:59:42,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:59:42,312 INFO L225 Difference]: With dead ends: 11598 [2024-09-12 18:59:42,313 INFO L226 Difference]: Without dead ends: 11597 [2024-09-12 18:59:42,316 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:59:42,316 INFO L434 NwaCegarLoop]: 245 mSDtfsCounter, 1729 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:59:42,316 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 1355 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:59:42,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11597 states. [2024-09-12 18:59:49,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11597 to 11582. [2024-09-12 18:59:49,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11582 states, 11052 states have (on average 1.0300398117987695) internal successors, (11384), 11095 states have internal predecessors, (11384), 520 states have call successors, (520), 8 states have call predecessors, (520), 7 states have return successors, (519), 478 states have call predecessors, (519), 519 states have call successors, (519) [2024-09-12 18:59:49,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11582 states to 11582 states and 12423 transitions. [2024-09-12 18:59:49,210 INFO L78 Accepts]: Start accepts. Automaton has 11582 states and 12423 transitions. Word has length 190 [2024-09-12 18:59:49,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:59:49,211 INFO L474 AbstractCegarLoop]: Abstraction has 11582 states and 12423 transitions. [2024-09-12 18:59:49,211 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 25.272727272727273) internal successors, (278), 12 states have internal predecessors, (278), 9 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-12 18:59:49,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:49,211 INFO L276 IsEmpty]: Start isEmpty. Operand 11582 states and 12423 transitions. [2024-09-12 18:59:49,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-09-12 18:59:49,215 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:59:49,216 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:59:49,223 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-12 18:59:49,416 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 18:59:49,417 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 18:59:49,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:59:49,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1172398465, now seen corresponding path program 1 times [2024-09-12 18:59:49,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:59:49,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043950188] [2024-09-12 18:59:49,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:49,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:59:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:59:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:59:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:59:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:59:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:59:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:59:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:59:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 18:59:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:59:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 18:59:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:59:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 18:59:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 18:59:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 123 proven. 56 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:59:49,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:59:49,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043950188] [2024-09-12 18:59:49,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043950188] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:59:49,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610720272] [2024-09-12 18:59:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:59:49,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:59:49,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:59:49,600 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:59:49,601 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 18:59:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:59:49,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:59:49,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:50,609 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 67 proven. 133 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-09-12 18:59:50,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:50,958 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 67 proven. 133 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-09-12 18:59:50,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610720272] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:50,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:59:50,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 23 [2024-09-12 18:59:50,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005477927] [2024-09-12 18:59:50,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:50,959 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:59:50,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:50,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:59:50,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:59:50,961 INFO L87 Difference]: Start difference. First operand 11582 states and 12423 transitions. Second operand has 24 states, 23 states have (on average 25.17391304347826) internal successors, (579), 24 states have internal predecessors, (579), 15 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (36), 15 states have call predecessors, (36), 15 states have call successors, (36) [2024-09-12 19:00:09,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:00:09,455 INFO L93 Difference]: Finished difference Result 23223 states and 24940 transitions. [2024-09-12 19:00:09,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-09-12 19:00:09,456 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 25.17391304347826) internal successors, (579), 24 states have internal predecessors, (579), 15 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (36), 15 states have call predecessors, (36), 15 states have call successors, (36) Word has length 261 [2024-09-12 19:00:09,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:00:09,509 INFO L225 Difference]: With dead ends: 23223 [2024-09-12 19:00:09,509 INFO L226 Difference]: Without dead ends: 23222 [2024-09-12 19:00:09,519 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4417 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2988, Invalid=9222, Unknown=0, NotChecked=0, Total=12210 [2024-09-12 19:00:09,520 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 1769 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 3380 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 3535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 3380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:00:09,520 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 518 Invalid, 3535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 3380 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-09-12 19:00:09,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23222 states. [2024-09-12 19:00:14,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23222 to 7381. [2024-09-12 19:00:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7381 states, 7042 states have (on average 1.0244248792956547) internal successors, (7214), 7089 states have internal predecessors, (7214), 330 states have call successors, (330), 8 states have call predecessors, (330), 7 states have return successors, (329), 283 states have call predecessors, (329), 329 states have call successors, (329) [2024-09-12 19:00:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7381 states to 7381 states and 7873 transitions. [2024-09-12 19:00:15,031 INFO L78 Accepts]: Start accepts. Automaton has 7381 states and 7873 transitions. Word has length 261 [2024-09-12 19:00:15,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:00:15,033 INFO L474 AbstractCegarLoop]: Abstraction has 7381 states and 7873 transitions. [2024-09-12 19:00:15,033 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 25.17391304347826) internal successors, (579), 24 states have internal predecessors, (579), 15 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (36), 15 states have call predecessors, (36), 15 states have call successors, (36) [2024-09-12 19:00:15,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:00:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 7381 states and 7873 transitions. [2024-09-12 19:00:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-09-12 19:00:15,038 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:00:15,039 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:00:15,055 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 19:00:15,243 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 19:00:15,244 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-09-12 19:00:15,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:00:15,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1394226272, now seen corresponding path program 2 times [2024-09-12 19:00:15,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:00:15,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223573741] [2024-09-12 19:00:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:00:15,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:00:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:00:15,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [182862150] [2024-09-12 19:00:15,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:00:15,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:00:15,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:00:15,296 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:00:15,298 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 19:00:15,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:00:15,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:00:15,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 19:00:15,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:00:26,966 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 310 proven. 140 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-09-12 19:00:26,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:00:27,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:00:27,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223573741] [2024-09-12 19:00:27,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:00:27,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182862150] [2024-09-12 19:00:27,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182862150] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:00:27,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:00:27,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-09-12 19:00:27,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117309353] [2024-09-12 19:00:27,101 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:00:27,101 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 19:00:27,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:00:27,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 19:00:27,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=406, Unknown=2, NotChecked=0, Total=506 [2024-09-12 19:00:27,102 INFO L87 Difference]: Start difference. First operand 7381 states and 7873 transitions. Second operand has 20 states, 20 states have (on average 11.0) internal successors, (220), 20 states have internal predecessors, (220), 9 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (13), 9 states have call predecessors, (13), 9 states have call successors, (13) [2024-09-12 19:00:33,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:36,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:38,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]