./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.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 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:14:11,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:14:11,381 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:14:11,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:14:11,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:14:11,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:14:11,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:14:11,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:14:11,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:14:11,422 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:14:11,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:14:11,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:14:11,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:14:11,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:14:11,426 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:14:11,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:14:11,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:14:11,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:14:11,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:14:11,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:14:11,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:14:11,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:14:11,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:14:11,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:14:11,429 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:14:11,430 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:14:11,430 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:14:11,430 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:14:11,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:14:11,431 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:14:11,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:14:11,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:14:11,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:14:11,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:14:11,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:14:11,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:14:11,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:14:11,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:14:11,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:14:11,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:14:11,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:14:11,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:14:11,436 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:14:11,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:14:11,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:14:11,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:14:11,781 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:14:11,781 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:14:11,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c [2024-09-12 19:14:13,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:14:13,332 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:14:13,333 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c [2024-09-12 19:14:13,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/ce56bcb79/77c74f1fbd9f44e686decb380223a80f/FLAGe90b0b612 [2024-09-12 19:14:13,351 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/ce56bcb79/77c74f1fbd9f44e686decb380223a80f [2024-09-12 19:14:13,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:14:13,355 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:14:13,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:14:13,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:14:13,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:14:13,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47cc8f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13, skipping insertion in model container [2024-09-12 19:14:13,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,382 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:14:13,541 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c[538,551] [2024-09-12 19:14:13,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:14:13,594 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:14:13,605 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c[538,551] [2024-09-12 19:14:13,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:14:13,637 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:14:13,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13 WrapperNode [2024-09-12 19:14:13,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:14:13,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:14:13,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:14:13,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:14:13,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,660 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:14:13,661 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:14:13,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:14:13,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:14:13,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:14:13,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,703 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:14:13,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:14:13,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:14:13,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:14:13,728 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:14:13,729 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (1/1) ... [2024-09-12 19:14:13,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:14:13,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:13,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:14:13,770 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:14:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:14:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:14:13,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:14:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:14:13,830 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:14:13,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:14:13,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:14:13,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:14:13,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:14:13,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:14:13,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:14:13,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:14:13,890 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:14:13,892 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:14:14,268 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-09-12 19:14:14,269 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:14:14,300 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:14:14,300 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 19:14:14,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:14:14 BoogieIcfgContainer [2024-09-12 19:14:14,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:14:14,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:14:14,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:14:14,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:14:14,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:14:13" (1/3) ... [2024-09-12 19:14:14,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789564cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:14:14, skipping insertion in model container [2024-09-12 19:14:14,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:14:13" (2/3) ... [2024-09-12 19:14:14,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789564cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:14:14, skipping insertion in model container [2024-09-12 19:14:14,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:14:14" (3/3) ... [2024-09-12 19:14:14,311 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound20.c [2024-09-12 19:14:14,328 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:14:14,329 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-09-12 19:14:14,393 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:14:14,398 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;@51c4ad31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:14:14,399 INFO L337 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-09-12 19:14:14,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 42 states have (on average 1.8095238095238095) internal successors, (76), 67 states have internal predecessors, (76), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:14:14,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 19:14:14,414 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:14,415 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:14,415 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:14,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1510046667, now seen corresponding path program 1 times [2024-09-12 19:14:14,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:14,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140401962] [2024-09-12 19:14:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:14,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:14,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:14,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:14,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:14,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:14:14,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:14,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140401962] [2024-09-12 19:14:14,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140401962] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:14,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:14,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:14:14,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807813684] [2024-09-12 19:14:14,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:14,601 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:14:14,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:14,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:14:14,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:14:14,625 INFO L87 Difference]: Start difference. First operand has 84 states, 42 states have (on average 1.8095238095238095) internal successors, (76), 67 states have internal predecessors, (76), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:14:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:14,664 INFO L93 Difference]: Finished difference Result 162 states and 203 transitions. [2024-09-12 19:14:14,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:14:14,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-09-12 19:14:14,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:14,672 INFO L225 Difference]: With dead ends: 162 [2024-09-12 19:14:14,672 INFO L226 Difference]: Without dead ends: 80 [2024-09-12 19:14:14,675 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:14:14,678 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:14,679 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:14:14,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-09-12 19:14:14,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-09-12 19:14:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 40 states have (on average 1.7) internal successors, (68), 65 states have internal predecessors, (68), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:14:14,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2024-09-12 19:14:14,729 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 25 [2024-09-12 19:14:14,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:14,730 INFO L474 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2024-09-12 19:14:14,730 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:14:14,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2024-09-12 19:14:14,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:14:14,732 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:14,733 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:14,733 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:14:14,733 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:14,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:14,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1712065858, now seen corresponding path program 1 times [2024-09-12 19:14:14,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:14,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575918548] [2024-09-12 19:14:14,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:14,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:14,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:14:15,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:15,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575918548] [2024-09-12 19:14:15,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575918548] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:15,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:15,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:14:15,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452897548] [2024-09-12 19:14:15,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:15,030 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:15,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:15,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:15,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:15,033 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:14:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:15,232 INFO L93 Difference]: Finished difference Result 123 states and 143 transitions. [2024-09-12 19:14:15,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:15,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-09-12 19:14:15,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:15,235 INFO L225 Difference]: With dead ends: 123 [2024-09-12 19:14:15,235 INFO L226 Difference]: Without dead ends: 117 [2024-09-12 19:14:15,236 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:15,237 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 47 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:15,237 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 250 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:14:15,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-09-12 19:14:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 101. [2024-09-12 19:14:15,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 58 states have (on average 1.6551724137931034) internal successors, (96), 83 states have internal predecessors, (96), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:14:15,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 122 transitions. [2024-09-12 19:14:15,268 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 122 transitions. Word has length 27 [2024-09-12 19:14:15,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:15,269 INFO L474 AbstractCegarLoop]: Abstraction has 101 states and 122 transitions. [2024-09-12 19:14:15,269 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:14:15,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:15,269 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 122 transitions. [2024-09-12 19:14:15,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 19:14:15,270 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:15,270 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:15,270 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:14:15,271 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:15,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:15,271 INFO L85 PathProgramCache]: Analyzing trace with hash -138509034, now seen corresponding path program 1 times [2024-09-12 19:14:15,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:15,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826118807] [2024-09-12 19:14:15,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:15,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,433 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:14:15,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:15,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826118807] [2024-09-12 19:14:15,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826118807] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:15,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:15,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:14:15,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422221598] [2024-09-12 19:14:15,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:15,435 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:15,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:15,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:15,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:15,436 INFO L87 Difference]: Start difference. First operand 101 states and 122 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:14:15,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:15,637 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2024-09-12 19:14:15,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:15,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 32 [2024-09-12 19:14:15,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:15,640 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:14:15,640 INFO L226 Difference]: Without dead ends: 117 [2024-09-12 19:14:15,640 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:15,641 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 43 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:15,642 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 263 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:14:15,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-09-12 19:14:15,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 105. [2024-09-12 19:14:15,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 61 states have (on average 1.6229508196721312) internal successors, (99), 86 states have internal predecessors, (99), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:14:15,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2024-09-12 19:14:15,662 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 32 [2024-09-12 19:14:15,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:15,663 INFO L474 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2024-09-12 19:14:15,663 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:14:15,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2024-09-12 19:14:15,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:14:15,664 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:15,664 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:15,665 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:14:15,665 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:15,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:15,665 INFO L85 PathProgramCache]: Analyzing trace with hash 36962601, now seen corresponding path program 1 times [2024-09-12 19:14:15,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:15,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066448983] [2024-09-12 19:14:15,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:15,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:15,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307411704] [2024-09-12 19:14:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:15,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:15,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:15,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:15,693 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:14:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:15,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:14:15,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:14:15,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:14:15,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:15,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066448983] [2024-09-12 19:14:15,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:15,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307411704] [2024-09-12 19:14:15,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307411704] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:15,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:15,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:14:15,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193881152] [2024-09-12 19:14:15,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:15,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:14:15,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:15,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:14:15,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:15,803 INFO L87 Difference]: Start difference. First operand 105 states and 125 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:14:15,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:15,886 INFO L93 Difference]: Finished difference Result 200 states and 245 transitions. [2024-09-12 19:14:15,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:14:15,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2024-09-12 19:14:15,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:15,890 INFO L225 Difference]: With dead ends: 200 [2024-09-12 19:14:15,890 INFO L226 Difference]: Without dead ends: 130 [2024-09-12 19:14:15,890 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:15,895 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 18 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:15,896 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 147 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:15,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-09-12 19:14:15,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2024-09-12 19:14:15,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 77 states have (on average 1.5584415584415585) internal successors, (120), 102 states have internal predecessors, (120), 19 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:14:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2024-09-12 19:14:15,921 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 34 [2024-09-12 19:14:15,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:15,922 INFO L474 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2024-09-12 19:14:15,922 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:14:15,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:15,923 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2024-09-12 19:14:15,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:14:15,923 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:15,924 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:15,941 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 19:14:16,127 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:16,128 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:16,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:16,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1021481760, now seen corresponding path program 1 times [2024-09-12 19:14:16,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:16,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981849545] [2024-09-12 19:14:16,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:16,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:16,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829398491] [2024-09-12 19:14:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:16,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:16,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:16,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:16,154 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:14:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:16,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:14:16,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:14:16,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:14:16,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:16,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981849545] [2024-09-12 19:14:16,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:16,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829398491] [2024-09-12 19:14:16,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829398491] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:16,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:16,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:14:16,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989878215] [2024-09-12 19:14:16,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:16,318 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:16,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:16,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:16,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:16,323 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:14:16,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:16,548 INFO L93 Difference]: Finished difference Result 134 states and 161 transitions. [2024-09-12 19:14:16,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:16,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-09-12 19:14:16,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:16,550 INFO L225 Difference]: With dead ends: 134 [2024-09-12 19:14:16,551 INFO L226 Difference]: Without dead ends: 130 [2024-09-12 19:14:16,552 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:16,552 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 13 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:16,555 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 240 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:14:16,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-09-12 19:14:16,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-09-12 19:14:16,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 80 states have (on average 1.5125) internal successors, (121), 105 states have internal predecessors, (121), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:14:16,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 157 transitions. [2024-09-12 19:14:16,589 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 157 transitions. Word has length 39 [2024-09-12 19:14:16,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:16,590 INFO L474 AbstractCegarLoop]: Abstraction has 130 states and 157 transitions. [2024-09-12 19:14:16,590 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:14:16,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:16,590 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 157 transitions. [2024-09-12 19:14:16,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 19:14:16,591 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:16,591 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:16,608 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:14:16,792 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:16,792 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:16,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:16,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1591000955, now seen corresponding path program 1 times [2024-09-12 19:14:16,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:16,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085258382] [2024-09-12 19:14:16,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:16,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:16,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:16,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:16,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:16,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:16,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:16,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:16,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:14:16,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:16,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085258382] [2024-09-12 19:14:16,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085258382] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:16,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:16,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:14:16,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801206269] [2024-09-12 19:14:16,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:16,952 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:14:16,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:16,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:14:16,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:14:16,953 INFO L87 Difference]: Start difference. First operand 130 states and 157 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:17,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:17,763 INFO L93 Difference]: Finished difference Result 148 states and 175 transitions. [2024-09-12 19:14:17,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:17,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 45 [2024-09-12 19:14:17,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:17,765 INFO L225 Difference]: With dead ends: 148 [2024-09-12 19:14:17,766 INFO L226 Difference]: Without dead ends: 147 [2024-09-12 19:14:17,768 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:17,768 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 93 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:17,770 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 130 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:14:17,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-09-12 19:14:17,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 134. [2024-09-12 19:14:17,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 84 states have (on average 1.4880952380952381) internal successors, (125), 109 states have internal predecessors, (125), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:14:17,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 161 transitions. [2024-09-12 19:14:17,821 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 161 transitions. Word has length 45 [2024-09-12 19:14:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:17,822 INFO L474 AbstractCegarLoop]: Abstraction has 134 states and 161 transitions. [2024-09-12 19:14:17,822 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:17,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 161 transitions. [2024-09-12 19:14:17,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:14:17,824 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:17,824 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:17,826 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 19:14:17,826 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:17,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:17,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2076389445, now seen corresponding path program 1 times [2024-09-12 19:14:17,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:17,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581548181] [2024-09-12 19:14:17,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:17,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [128805239] [2024-09-12 19:14:17,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:17,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:17,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:17,842 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:17,846 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:14:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:17,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:14:17,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:17,990 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:14:17,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:14:17,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:17,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581548181] [2024-09-12 19:14:17,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:17,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128805239] [2024-09-12 19:14:17,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128805239] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:17,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:17,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:14:17,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375161286] [2024-09-12 19:14:17,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:17,991 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:14:17,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:17,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:14:17,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:17,992 INFO L87 Difference]: Start difference. First operand 134 states and 161 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:18,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:18,086 INFO L93 Difference]: Finished difference Result 148 states and 172 transitions. [2024-09-12 19:14:18,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:14:18,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2024-09-12 19:14:18,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:18,089 INFO L225 Difference]: With dead ends: 148 [2024-09-12 19:14:18,089 INFO L226 Difference]: Without dead ends: 146 [2024-09-12 19:14:18,089 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:18,090 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 33 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:18,090 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 115 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:18,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-09-12 19:14:18,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 136. [2024-09-12 19:14:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 111 states have internal predecessors, (126), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:14:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2024-09-12 19:14:18,124 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 46 [2024-09-12 19:14:18,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:18,125 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2024-09-12 19:14:18,125 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:18,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:18,125 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2024-09-12 19:14:18,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 19:14:18,126 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:18,126 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:18,142 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 19:14:18,326 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 19:14:18,327 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:18,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:18,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1966610323, now seen corresponding path program 1 times [2024-09-12 19:14:18,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:18,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029859998] [2024-09-12 19:14:18,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:18,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:18,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1691357816] [2024-09-12 19:14:18,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:18,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:18,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:18,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:18,351 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:14:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:18,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:14:18,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:18,502 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:14:18,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:14:18,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:18,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029859998] [2024-09-12 19:14:18,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:18,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691357816] [2024-09-12 19:14:18,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691357816] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:18,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:18,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:14:18,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638830125] [2024-09-12 19:14:18,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:18,504 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:18,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:18,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:18,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:18,505 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:18,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:18,689 INFO L93 Difference]: Finished difference Result 153 states and 174 transitions. [2024-09-12 19:14:18,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:18,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2024-09-12 19:14:18,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:18,691 INFO L225 Difference]: With dead ends: 153 [2024-09-12 19:14:18,691 INFO L226 Difference]: Without dead ends: 150 [2024-09-12 19:14:18,692 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:18,692 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 35 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:18,693 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 235 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:18,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-09-12 19:14:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 141. [2024-09-12 19:14:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 89 states have (on average 1.4382022471910112) internal successors, (128), 115 states have internal predecessors, (128), 20 states have call successors, (20), 8 states have call predecessors, (20), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 19:14:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 166 transitions. [2024-09-12 19:14:18,744 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 166 transitions. Word has length 50 [2024-09-12 19:14:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:18,744 INFO L474 AbstractCegarLoop]: Abstraction has 141 states and 166 transitions. [2024-09-12 19:14:18,745 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:18,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:18,746 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 166 transitions. [2024-09-12 19:14:18,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 19:14:18,747 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:18,747 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:18,769 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:14:18,951 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:18,952 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:18,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:18,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1072179619, now seen corresponding path program 1 times [2024-09-12 19:14:18,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:18,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883248487] [2024-09-12 19:14:18,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:18,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:18,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1004107806] [2024-09-12 19:14:18,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:18,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:18,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:18,975 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:18,976 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:14:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:14:19,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-12 19:14:19,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:19,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:19,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883248487] [2024-09-12 19:14:19,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:19,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004107806] [2024-09-12 19:14:19,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004107806] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:19,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:19,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:14:19,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190275862] [2024-09-12 19:14:19,293 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:19,293 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:14:19,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:19,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:14:19,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:14:19,294 INFO L87 Difference]: Start difference. First operand 141 states and 166 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:14:19,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:19,491 INFO L93 Difference]: Finished difference Result 167 states and 196 transitions. [2024-09-12 19:14:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:14:19,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 57 [2024-09-12 19:14:19,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:19,495 INFO L225 Difference]: With dead ends: 167 [2024-09-12 19:14:19,496 INFO L226 Difference]: Without dead ends: 147 [2024-09-12 19:14:19,496 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:14:19,498 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 60 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:19,498 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 271 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:19,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-09-12 19:14:19,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-09-12 19:14:19,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 119 states have internal predecessors, (131), 22 states have call successors, (22), 8 states have call predecessors, (22), 7 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 19:14:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 173 transitions. [2024-09-12 19:14:19,543 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 173 transitions. Word has length 57 [2024-09-12 19:14:19,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:19,543 INFO L474 AbstractCegarLoop]: Abstraction has 147 states and 173 transitions. [2024-09-12 19:14:19,543 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:14:19,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:19,544 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 173 transitions. [2024-09-12 19:14:19,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:14:19,545 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:19,545 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:19,563 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:19,746 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:19,747 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:19,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:19,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1122170242, now seen corresponding path program 1 times [2024-09-12 19:14:19,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:19,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774764912] [2024-09-12 19:14:19,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:19,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:19,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1029358455] [2024-09-12 19:14:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:19,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:19,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:19,762 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:19,764 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:14:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:19,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:14:19,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:19,951 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-12 19:14:19,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:20,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:20,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774764912] [2024-09-12 19:14:20,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:20,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029358455] [2024-09-12 19:14:20,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029358455] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:20,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:20,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:14:20,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857297610] [2024-09-12 19:14:20,074 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:20,074 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:14:20,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:20,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:14:20,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:14:20,076 INFO L87 Difference]: Start difference. First operand 147 states and 173 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:14:20,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:20,305 INFO L93 Difference]: Finished difference Result 222 states and 276 transitions. [2024-09-12 19:14:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:14:20,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 58 [2024-09-12 19:14:20,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:20,308 INFO L225 Difference]: With dead ends: 222 [2024-09-12 19:14:20,308 INFO L226 Difference]: Without dead ends: 218 [2024-09-12 19:14:20,308 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:14:20,309 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 147 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:20,309 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 229 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:14:20,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-09-12 19:14:20,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2024-09-12 19:14:20,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 147 states have (on average 1.3741496598639455) internal successors, (202), 169 states have internal predecessors, (202), 31 states have call successors, (31), 8 states have call predecessors, (31), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 19:14:20,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 262 transitions. [2024-09-12 19:14:20,374 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 262 transitions. Word has length 58 [2024-09-12 19:14:20,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:20,374 INFO L474 AbstractCegarLoop]: Abstraction has 206 states and 262 transitions. [2024-09-12 19:14:20,374 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:14:20,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:20,375 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 262 transitions. [2024-09-12 19:14:20,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 19:14:20,375 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:20,376 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:20,400 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 19:14:20,582 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 19:14:20,583 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:20,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:20,583 INFO L85 PathProgramCache]: Analyzing trace with hash -2049450388, now seen corresponding path program 1 times [2024-09-12 19:14:20,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:20,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549803605] [2024-09-12 19:14:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:20,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:20,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102493285] [2024-09-12 19:14:20,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:20,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:20,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:20,600 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:20,602 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:14:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:20,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:14:20,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:20,765 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 19:14:20,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:20,920 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-09-12 19:14:20,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:20,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549803605] [2024-09-12 19:14:20,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:20,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102493285] [2024-09-12 19:14:20,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102493285] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:20,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:20,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:14:20,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475495779] [2024-09-12 19:14:20,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:20,921 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:14:20,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:20,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:14:20,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:14:20,922 INFO L87 Difference]: Start difference. First operand 206 states and 262 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:21,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:21,385 INFO L93 Difference]: Finished difference Result 216 states and 275 transitions. [2024-09-12 19:14:21,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:14:21,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-09-12 19:14:21,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:21,387 INFO L225 Difference]: With dead ends: 216 [2024-09-12 19:14:21,387 INFO L226 Difference]: Without dead ends: 214 [2024-09-12 19:14:21,388 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:14:21,388 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 13 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:21,388 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 222 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:14:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-09-12 19:14:21,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 210. [2024-09-12 19:14:21,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 150 states have (on average 1.3666666666666667) internal successors, (205), 172 states have internal predecessors, (205), 31 states have call successors, (31), 9 states have call predecessors, (31), 8 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 19:14:21,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 265 transitions. [2024-09-12 19:14:21,450 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 265 transitions. Word has length 62 [2024-09-12 19:14:21,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:21,451 INFO L474 AbstractCegarLoop]: Abstraction has 210 states and 265 transitions. [2024-09-12 19:14:21,451 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:21,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:21,452 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 265 transitions. [2024-09-12 19:14:21,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 19:14:21,453 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:21,453 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:21,471 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:14:21,653 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:21,654 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:21,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:21,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2083474338, now seen corresponding path program 1 times [2024-09-12 19:14:21,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:21,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433709237] [2024-09-12 19:14:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:21,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:21,754 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-09-12 19:14:21,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:21,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433709237] [2024-09-12 19:14:21,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433709237] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:21,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:21,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:14:21,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113727961] [2024-09-12 19:14:21,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:21,756 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:14:21,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:21,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:14:21,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:21,757 INFO L87 Difference]: Start difference. First operand 210 states and 265 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:21,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:21,897 INFO L93 Difference]: Finished difference Result 210 states and 265 transitions. [2024-09-12 19:14:21,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:14:21,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-09-12 19:14:21,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:21,900 INFO L225 Difference]: With dead ends: 210 [2024-09-12 19:14:21,900 INFO L226 Difference]: Without dead ends: 208 [2024-09-12 19:14:21,900 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:21,900 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 33 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:21,901 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 86 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-09-12 19:14:21,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-09-12 19:14:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 170 states have internal predecessors, (199), 31 states have call successors, (31), 9 states have call predecessors, (31), 8 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 19:14:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 259 transitions. [2024-09-12 19:14:21,957 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 259 transitions. Word has length 65 [2024-09-12 19:14:21,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:21,958 INFO L474 AbstractCegarLoop]: Abstraction has 208 states and 259 transitions. [2024-09-12 19:14:21,958 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:14:21,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 259 transitions. [2024-09-12 19:14:21,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 19:14:21,959 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:21,959 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:21,959 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 19:14:21,959 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:21,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:21,959 INFO L85 PathProgramCache]: Analyzing trace with hash 163195111, now seen corresponding path program 1 times [2024-09-12 19:14:21,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:21,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763513176] [2024-09-12 19:14:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:21,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:14:22,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:22,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763513176] [2024-09-12 19:14:22,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763513176] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:22,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953230788] [2024-09-12 19:14:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:22,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:22,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:22,043 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:22,045 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:14:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:14:22,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:22,121 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:14:22,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:14:22,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953230788] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:22,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:14:22,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-12 19:14:22,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019003584] [2024-09-12 19:14:22,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:22,193 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:14:22,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:22,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:14:22,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:22,193 INFO L87 Difference]: Start difference. First operand 208 states and 259 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 19:14:22,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:22,453 INFO L93 Difference]: Finished difference Result 332 states and 420 transitions. [2024-09-12 19:14:22,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:14:22,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 66 [2024-09-12 19:14:22,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:22,455 INFO L225 Difference]: With dead ends: 332 [2024-09-12 19:14:22,455 INFO L226 Difference]: Without dead ends: 330 [2024-09-12 19:14:22,456 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:22,456 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 219 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:22,456 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 179 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:22,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-09-12 19:14:22,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 276. [2024-09-12 19:14:22,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 206 states have (on average 1.3398058252427185) internal successors, (276), 226 states have internal predecessors, (276), 43 states have call successors, (43), 9 states have call predecessors, (43), 8 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-09-12 19:14:22,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 360 transitions. [2024-09-12 19:14:22,540 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 360 transitions. Word has length 66 [2024-09-12 19:14:22,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:22,540 INFO L474 AbstractCegarLoop]: Abstraction has 276 states and 360 transitions. [2024-09-12 19:14:22,541 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 19:14:22,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:22,541 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 360 transitions. [2024-09-12 19:14:22,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 19:14:22,542 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:22,542 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:22,558 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 19:14:22,745 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:22,746 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:22,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:22,746 INFO L85 PathProgramCache]: Analyzing trace with hash 790232330, now seen corresponding path program 1 times [2024-09-12 19:14:22,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:22,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307536293] [2024-09-12 19:14:22,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:22,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 19:14:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:14:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:14:22,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:22,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307536293] [2024-09-12 19:14:22,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307536293] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:22,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:22,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:14:22,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429955013] [2024-09-12 19:14:22,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:22,883 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:22,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:22,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:22,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:22,883 INFO L87 Difference]: Start difference. First operand 276 states and 360 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 19:14:23,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:23,072 INFO L93 Difference]: Finished difference Result 288 states and 372 transitions. [2024-09-12 19:14:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:23,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2024-09-12 19:14:23,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:23,075 INFO L225 Difference]: With dead ends: 288 [2024-09-12 19:14:23,075 INFO L226 Difference]: Without dead ends: 266 [2024-09-12 19:14:23,075 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:14:23,076 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 5 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:23,076 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 237 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:23,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-09-12 19:14:23,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2024-09-12 19:14:23,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 198 states have (on average 1.3484848484848484) internal successors, (267), 218 states have internal predecessors, (267), 41 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 19:14:23,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 347 transitions. [2024-09-12 19:14:23,146 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 347 transitions. Word has length 72 [2024-09-12 19:14:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:23,146 INFO L474 AbstractCegarLoop]: Abstraction has 266 states and 347 transitions. [2024-09-12 19:14:23,147 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 19:14:23,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:23,147 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 347 transitions. [2024-09-12 19:14:23,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:14:23,148 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:23,148 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:23,148 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 19:14:23,148 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:23,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:23,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1369927350, now seen corresponding path program 2 times [2024-09-12 19:14:23,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:23,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279513150] [2024-09-12 19:14:23,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:23,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:23,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326530860] [2024-09-12 19:14:23,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:14:23,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:23,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:23,163 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:23,164 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:14:23,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:14:23,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:14:23,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:14:23,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 19:14:23,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:23,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:23,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279513150] [2024-09-12 19:14:23,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:23,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326530860] [2024-09-12 19:14:23,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326530860] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:23,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:23,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 19:14:23,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492706304] [2024-09-12 19:14:23,616 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:23,616 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:14:23,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:23,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:14:23,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:14:23,617 INFO L87 Difference]: Start difference. First operand 266 states and 347 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 19:14:24,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:24,247 INFO L93 Difference]: Finished difference Result 326 states and 427 transitions. [2024-09-12 19:14:24,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:14:24,248 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 81 [2024-09-12 19:14:24,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:24,250 INFO L225 Difference]: With dead ends: 326 [2024-09-12 19:14:24,250 INFO L226 Difference]: Without dead ends: 322 [2024-09-12 19:14:24,250 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:14:24,251 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 136 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:24,251 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 496 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:14:24,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-09-12 19:14:24,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 266. [2024-09-12 19:14:24,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 198 states have (on average 1.3383838383838385) internal successors, (265), 218 states have internal predecessors, (265), 41 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 19:14:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 345 transitions. [2024-09-12 19:14:24,334 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 345 transitions. Word has length 81 [2024-09-12 19:14:24,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:24,334 INFO L474 AbstractCegarLoop]: Abstraction has 266 states and 345 transitions. [2024-09-12 19:14:24,335 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 19:14:24,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:24,335 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 345 transitions. [2024-09-12 19:14:24,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 19:14:24,336 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:24,336 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:24,353 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:14:24,536 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:14:24,537 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:24,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:24,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2040572342, now seen corresponding path program 1 times [2024-09-12 19:14:24,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:24,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831002940] [2024-09-12 19:14:24,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:24,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:14:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:14:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,606 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-09-12 19:14:24,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:24,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831002940] [2024-09-12 19:14:24,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831002940] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:24,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:24,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:14:24,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152892498] [2024-09-12 19:14:24,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:24,607 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:14:24,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:14:24,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:24,608 INFO L87 Difference]: Start difference. First operand 266 states and 345 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-09-12 19:14:24,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:24,775 INFO L93 Difference]: Finished difference Result 266 states and 345 transitions. [2024-09-12 19:14:24,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:14:24,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 88 [2024-09-12 19:14:24,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:24,778 INFO L225 Difference]: With dead ends: 266 [2024-09-12 19:14:24,778 INFO L226 Difference]: Without dead ends: 265 [2024-09-12 19:14:24,779 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:14:24,779 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 2 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:24,780 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 131 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:24,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-09-12 19:14:24,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2024-09-12 19:14:24,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 198 states have (on average 1.3232323232323233) internal successors, (262), 217 states have internal predecessors, (262), 41 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 19:14:24,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 342 transitions. [2024-09-12 19:14:24,856 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 342 transitions. Word has length 88 [2024-09-12 19:14:24,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:24,857 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 342 transitions. [2024-09-12 19:14:24,857 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-09-12 19:14:24,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:24,857 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 342 transitions. [2024-09-12 19:14:24,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 19:14:24,858 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:24,858 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:24,858 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 19:14:24,858 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:24,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:24,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1166766716, now seen corresponding path program 1 times [2024-09-12 19:14:24,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:24,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921516226] [2024-09-12 19:14:24,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:24,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:24,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:14:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:14:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,026 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-09-12 19:14:25,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:25,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921516226] [2024-09-12 19:14:25,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921516226] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:25,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:25,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:14:25,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533133389] [2024-09-12 19:14:25,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:25,027 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:25,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:25,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:25,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:25,027 INFO L87 Difference]: Start difference. First operand 265 states and 342 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 19:14:25,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:25,352 INFO L93 Difference]: Finished difference Result 432 states and 589 transitions. [2024-09-12 19:14:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:14:25,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 89 [2024-09-12 19:14:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:25,355 INFO L225 Difference]: With dead ends: 432 [2024-09-12 19:14:25,355 INFO L226 Difference]: Without dead ends: 431 [2024-09-12 19:14:25,356 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:14:25,357 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 97 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:25,357 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 246 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:14:25,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-09-12 19:14:25,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 367. [2024-09-12 19:14:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 288 states have (on average 1.3923611111111112) internal successors, (401), 307 states have internal predecessors, (401), 53 states have call successors, (53), 9 states have call predecessors, (53), 8 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 19:14:25,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 505 transitions. [2024-09-12 19:14:25,469 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 505 transitions. Word has length 89 [2024-09-12 19:14:25,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:25,470 INFO L474 AbstractCegarLoop]: Abstraction has 367 states and 505 transitions. [2024-09-12 19:14:25,470 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 19:14:25,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:25,470 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 505 transitions. [2024-09-12 19:14:25,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-09-12 19:14:25,472 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:25,472 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:25,472 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 19:14:25,472 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:25,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:25,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1810029704, now seen corresponding path program 1 times [2024-09-12 19:14:25,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:25,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372627458] [2024-09-12 19:14:25,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:25,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:14:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:14:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,662 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:25,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:25,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372627458] [2024-09-12 19:14:25,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372627458] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:25,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540521708] [2024-09-12 19:14:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:25,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:25,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:25,665 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:25,667 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:14:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:25,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:14:25,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:25,843 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:25,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:14:25,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540521708] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:25,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:25,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-09-12 19:14:25,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795697530] [2024-09-12 19:14:25,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:25,844 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:14:25,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:25,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:14:25,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:14:25,845 INFO L87 Difference]: Start difference. First operand 367 states and 505 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:14:26,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:26,046 INFO L93 Difference]: Finished difference Result 367 states and 505 transitions. [2024-09-12 19:14:26,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:14:26,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 90 [2024-09-12 19:14:26,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:26,049 INFO L225 Difference]: With dead ends: 367 [2024-09-12 19:14:26,049 INFO L226 Difference]: Without dead ends: 365 [2024-09-12 19:14:26,049 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:14:26,050 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 19 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:26,050 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 105 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:14:26,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-09-12 19:14:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-09-12 19:14:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 288 states have (on average 1.3298611111111112) internal successors, (383), 305 states have internal predecessors, (383), 53 states have call successors, (53), 9 states have call predecessors, (53), 8 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 19:14:26,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 487 transitions. [2024-09-12 19:14:26,159 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 487 transitions. Word has length 90 [2024-09-12 19:14:26,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:26,161 INFO L474 AbstractCegarLoop]: Abstraction has 365 states and 487 transitions. [2024-09-12 19:14:26,161 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:14:26,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:26,161 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 487 transitions. [2024-09-12 19:14:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 19:14:26,164 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:26,164 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:26,180 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 19:14:26,364 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:14:26,365 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:26,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:26,365 INFO L85 PathProgramCache]: Analyzing trace with hash -276345850, now seen corresponding path program 1 times [2024-09-12 19:14:26,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:26,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088813248] [2024-09-12 19:14:26,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:26,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:14:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:14:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:26,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:26,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088813248] [2024-09-12 19:14:26,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088813248] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:26,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414329951] [2024-09-12 19:14:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:26,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:26,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:26,506 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:26,507 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:14:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:26,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:14:26,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:26,677 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:27,014 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:27,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414329951] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:27,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:14:27,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2024-09-12 19:14:27,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074335134] [2024-09-12 19:14:27,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:27,015 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:14:27,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:27,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:14:27,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:14:27,016 INFO L87 Difference]: Start difference. First operand 365 states and 487 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 10 states have internal predecessors, (99), 7 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-09-12 19:14:27,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:27,576 INFO L93 Difference]: Finished difference Result 578 states and 757 transitions. [2024-09-12 19:14:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:14:27,577 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 10 states have internal predecessors, (99), 7 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 91 [2024-09-12 19:14:27,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:27,581 INFO L225 Difference]: With dead ends: 578 [2024-09-12 19:14:27,581 INFO L226 Difference]: Without dead ends: 476 [2024-09-12 19:14:27,581 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:14:27,582 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 55 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:27,582 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 411 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:14:27,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-09-12 19:14:27,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 431. [2024-09-12 19:14:27,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 348 states have (on average 1.3017241379310345) internal successors, (453), 365 states have internal predecessors, (453), 59 states have call successors, (59), 9 states have call predecessors, (59), 8 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 19:14:27,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 569 transitions. [2024-09-12 19:14:27,739 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 569 transitions. Word has length 91 [2024-09-12 19:14:27,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:27,739 INFO L474 AbstractCegarLoop]: Abstraction has 431 states and 569 transitions. [2024-09-12 19:14:27,739 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 10 states have internal predecessors, (99), 7 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-09-12 19:14:27,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 569 transitions. [2024-09-12 19:14:27,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 19:14:27,740 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:27,740 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:27,759 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:27,941 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:27,941 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:27,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:27,941 INFO L85 PathProgramCache]: Analyzing trace with hash 833176532, now seen corresponding path program 1 times [2024-09-12 19:14:27,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:27,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405621446] [2024-09-12 19:14:27,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:27,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:27,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250293546] [2024-09-12 19:14:27,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:27,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:27,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:27,976 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:27,977 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:14:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:28,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 19:14:28,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 19:14:28,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:28,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:28,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405621446] [2024-09-12 19:14:28,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:28,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250293546] [2024-09-12 19:14:28,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250293546] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:14:28,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:14:28,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 19:14:28,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372681068] [2024-09-12 19:14:28,882 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:28,883 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:14:28,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:28,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:14:28,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:14:28,884 INFO L87 Difference]: Start difference. First operand 431 states and 569 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 19:14:29,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:29,411 INFO L93 Difference]: Finished difference Result 463 states and 612 transitions. [2024-09-12 19:14:29,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:14:29,411 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 94 [2024-09-12 19:14:29,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:29,414 INFO L225 Difference]: With dead ends: 463 [2024-09-12 19:14:29,414 INFO L226 Difference]: Without dead ends: 462 [2024-09-12 19:14:29,414 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:14:29,415 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:29,415 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 352 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:14:29,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-09-12 19:14:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 446. [2024-09-12 19:14:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 361 states have (on average 1.296398891966759) internal successors, (468), 378 states have internal predecessors, (468), 61 states have call successors, (61), 9 states have call predecessors, (61), 8 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 19:14:29,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 588 transitions. [2024-09-12 19:14:29,586 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 588 transitions. Word has length 94 [2024-09-12 19:14:29,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:29,586 INFO L474 AbstractCegarLoop]: Abstraction has 446 states and 588 transitions. [2024-09-12 19:14:29,587 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 19:14:29,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:29,587 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 588 transitions. [2024-09-12 19:14:29,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 19:14:29,588 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:29,590 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:29,601 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:29,790 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-09-12 19:14:29,791 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:29,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:29,791 INFO L85 PathProgramCache]: Analyzing trace with hash 58668810, now seen corresponding path program 1 times [2024-09-12 19:14:29,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:29,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518426018] [2024-09-12 19:14:29,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:29,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:14:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:14:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:14:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:14:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:14:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:14:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:14:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:14:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:14:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:14:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:14:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:14:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-09-12 19:14:29,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518426018] [2024-09-12 19:14:29,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518426018] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:14:29,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:14:29,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:14:29,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635145302] [2024-09-12 19:14:29,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:14:29,947 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:14:29,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:29,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:14:29,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:14:29,948 INFO L87 Difference]: Start difference. First operand 446 states and 588 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-09-12 19:14:30,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:30,267 INFO L93 Difference]: Finished difference Result 446 states and 588 transitions. [2024-09-12 19:14:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:14:30,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 95 [2024-09-12 19:14:30,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:30,270 INFO L225 Difference]: With dead ends: 446 [2024-09-12 19:14:30,270 INFO L226 Difference]: Without dead ends: 445 [2024-09-12 19:14:30,270 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:14:30,271 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 71 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:30,271 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 137 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:14:30,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-09-12 19:14:30,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 433. [2024-09-12 19:14:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 349 states have (on average 1.2779369627507164) internal successors, (446), 365 states have internal predecessors, (446), 61 states have call successors, (61), 9 states have call predecessors, (61), 8 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 19:14:30,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 566 transitions. [2024-09-12 19:14:30,382 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 566 transitions. Word has length 95 [2024-09-12 19:14:30,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:30,383 INFO L474 AbstractCegarLoop]: Abstraction has 433 states and 566 transitions. [2024-09-12 19:14:30,383 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-09-12 19:14:30,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:30,383 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 566 transitions. [2024-09-12 19:14:30,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 19:14:30,384 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:30,384 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:30,384 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 19:14:30,384 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:30,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:30,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1818733206, now seen corresponding path program 1 times [2024-09-12 19:14:30,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:30,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391544079] [2024-09-12 19:14:30,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:30,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:30,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [775502490] [2024-09-12 19:14:30,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:30,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:30,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:30,412 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:30,414 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:14:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:30,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 19:14:30,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:31,088 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 19:14:31,088 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:32,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:32,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391544079] [2024-09-12 19:14:32,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:32,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775502490] [2024-09-12 19:14:32,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775502490] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:32,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:14:32,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-09-12 19:14:32,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141786471] [2024-09-12 19:14:32,536 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:32,537 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 19:14:32,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:32,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 19:14:32,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:14:32,538 INFO L87 Difference]: Start difference. First operand 433 states and 566 transitions. Second operand has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-09-12 19:14:37,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:37,074 INFO L93 Difference]: Finished difference Result 520 states and 680 transitions. [2024-09-12 19:14:37,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 19:14:37,077 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) Word has length 96 [2024-09-12 19:14:37,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:37,080 INFO L225 Difference]: With dead ends: 520 [2024-09-12 19:14:37,080 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 19:14:37,083 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 19:14:37,084 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 357 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:37,088 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 347 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-09-12 19:14:37,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 19:14:37,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 447. [2024-09-12 19:14:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 365 states have (on average 1.263013698630137) internal successors, (461), 381 states have internal predecessors, (461), 59 states have call successors, (59), 9 states have call predecessors, (59), 8 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 19:14:37,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 577 transitions. [2024-09-12 19:14:37,240 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 577 transitions. Word has length 96 [2024-09-12 19:14:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:37,241 INFO L474 AbstractCegarLoop]: Abstraction has 447 states and 577 transitions. [2024-09-12 19:14:37,241 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-09-12 19:14:37,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:37,241 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 577 transitions. [2024-09-12 19:14:37,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 19:14:37,242 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:37,242 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:37,254 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:37,442 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:37,442 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:37,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:37,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1158992446, now seen corresponding path program 1 times [2024-09-12 19:14:37,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:37,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296118775] [2024-09-12 19:14:37,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:37,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:37,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1642196870] [2024-09-12 19:14:37,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:37,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:37,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:37,463 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:37,464 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:14:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:14:37,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 19:14:37,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 19:14:38,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:40,476 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 19:14:40,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:40,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296118775] [2024-09-12 19:14:40,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:40,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642196870] [2024-09-12 19:14:40,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642196870] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:40,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:14:40,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 27 [2024-09-12 19:14:40,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654353891] [2024-09-12 19:14:40,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:40,478 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 19:14:40,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:40,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 19:14:40,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:14:40,479 INFO L87 Difference]: Start difference. First operand 447 states and 577 transitions. Second operand has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 24 states have internal predecessors, (87), 9 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2024-09-12 19:14:43,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:43,015 INFO L93 Difference]: Finished difference Result 560 states and 719 transitions. [2024-09-12 19:14:43,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 19:14:43,015 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 24 states have internal predecessors, (87), 9 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) Word has length 100 [2024-09-12 19:14:43,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:43,017 INFO L225 Difference]: With dead ends: 560 [2024-09-12 19:14:43,018 INFO L226 Difference]: Without dead ends: 558 [2024-09-12 19:14:43,018 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=296, Invalid=1596, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 19:14:43,019 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 227 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:43,019 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 462 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 19:14:43,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-09-12 19:14:43,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 506. [2024-09-12 19:14:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 413 states have (on average 1.2469733656174333) internal successors, (515), 430 states have internal predecessors, (515), 65 states have call successors, (65), 14 states have call predecessors, (65), 13 states have return successors, (63), 61 states have call predecessors, (63), 63 states have call successors, (63) [2024-09-12 19:14:43,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 643 transitions. [2024-09-12 19:14:43,239 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 643 transitions. Word has length 100 [2024-09-12 19:14:43,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:43,240 INFO L474 AbstractCegarLoop]: Abstraction has 506 states and 643 transitions. [2024-09-12 19:14:43,240 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 24 states have internal predecessors, (87), 9 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2024-09-12 19:14:43,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:43,240 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 643 transitions. [2024-09-12 19:14:43,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 19:14:43,241 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:43,242 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:43,259 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:14:43,446 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:14:43,447 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:43,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:43,447 INFO L85 PathProgramCache]: Analyzing trace with hash -751052030, now seen corresponding path program 3 times [2024-09-12 19:14:43,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:43,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672466776] [2024-09-12 19:14:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:43,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:43,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876781789] [2024-09-12 19:14:43,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:14:43,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:43,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:43,463 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:43,467 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:14:43,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:14:43,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:14:43,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:14:43,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:44,043 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-09-12 19:14:44,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-09-12 19:14:48,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:48,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672466776] [2024-09-12 19:14:48,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:48,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876781789] [2024-09-12 19:14:48,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876781789] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:48,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:14:48,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-09-12 19:14:48,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949440875] [2024-09-12 19:14:48,225 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:48,225 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:14:48,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:14:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2024-09-12 19:14:48,226 INFO L87 Difference]: Start difference. First operand 506 states and 643 transitions. Second operand has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 19:14:50,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:14:52,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:14:54,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:14:56,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:14:56,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:14:56,086 INFO L93 Difference]: Finished difference Result 514 states and 653 transitions. [2024-09-12 19:14:56,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:14:56,086 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2024-09-12 19:14:56,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:14:56,088 INFO L225 Difference]: With dead ends: 514 [2024-09-12 19:14:56,088 INFO L226 Difference]: Without dead ends: 511 [2024-09-12 19:14:56,089 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=49, Invalid=131, Unknown=2, NotChecked=0, Total=182 [2024-09-12 19:14:56,090 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 101 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 40 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:14:56,090 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 231 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 317 Invalid, 6 Unknown, 0 Unchecked, 7.6s Time] [2024-09-12 19:14:56,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-09-12 19:14:56,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 430. [2024-09-12 19:14:56,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 348 states have (on average 1.1867816091954022) internal successors, (413), 362 states have internal predecessors, (413), 57 states have call successors, (57), 14 states have call predecessors, (57), 13 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 19:14:56,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 525 transitions. [2024-09-12 19:14:56,290 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 525 transitions. Word has length 104 [2024-09-12 19:14:56,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:14:56,290 INFO L474 AbstractCegarLoop]: Abstraction has 430 states and 525 transitions. [2024-09-12 19:14:56,290 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 19:14:56,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 525 transitions. [2024-09-12 19:14:56,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 19:14:56,292 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:14:56,292 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:14:56,308 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 19:14:56,492 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:14:56,493 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:14:56,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:14:56,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1862601784, now seen corresponding path program 2 times [2024-09-12 19:14:56,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:14:56,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404425628] [2024-09-12 19:14:56,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:14:56,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:14:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:14:56,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1077119611] [2024-09-12 19:14:56,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:14:56,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:14:56,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:14:56,514 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:14:56,516 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:14:56,567 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:14:56,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:14:56,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 19:14:56,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:14:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 29 proven. 29 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-09-12 19:14:56,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:14:58,423 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 29 proven. 29 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-09-12 19:14:58,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:14:58,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404425628] [2024-09-12 19:14:58,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:14:58,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077119611] [2024-09-12 19:14:58,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077119611] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:14:58,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:14:58,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 24 [2024-09-12 19:14:58,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759955014] [2024-09-12 19:14:58,423 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:14:58,424 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:14:58,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:14:58,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:14:58,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:14:58,425 INFO L87 Difference]: Start difference. First operand 430 states and 525 transitions. Second operand has 24 states, 24 states have (on average 3.875) internal successors, (93), 23 states have internal predecessors, (93), 11 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2024-09-12 19:15:00,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:00,594 INFO L93 Difference]: Finished difference Result 560 states and 681 transitions. [2024-09-12 19:15:00,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:15:00,594 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 23 states have internal predecessors, (93), 11 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) Word has length 107 [2024-09-12 19:15:00,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:00,596 INFO L225 Difference]: With dead ends: 560 [2024-09-12 19:15:00,596 INFO L226 Difference]: Without dead ends: 445 [2024-09-12 19:15:00,597 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=196, Invalid=926, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:15:00,598 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 67 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:00,598 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 530 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 19:15:00,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-09-12 19:15:00,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 436. [2024-09-12 19:15:00,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 349 states have (on average 1.180515759312321) internal successors, (412), 365 states have internal predecessors, (412), 59 states have call successors, (59), 17 states have call predecessors, (59), 16 states have return successors, (57), 53 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 19:15:00,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 528 transitions. [2024-09-12 19:15:00,858 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 528 transitions. Word has length 107 [2024-09-12 19:15:00,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:00,858 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 528 transitions. [2024-09-12 19:15:00,858 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 23 states have internal predecessors, (93), 11 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2024-09-12 19:15:00,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:00,859 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 528 transitions. [2024-09-12 19:15:00,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 19:15:00,859 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:00,860 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:00,877 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:01,060 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:01,060 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:01,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:01,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2092158453, now seen corresponding path program 1 times [2024-09-12 19:15:01,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:01,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970901891] [2024-09-12 19:15:01,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:01,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:01,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326951840] [2024-09-12 19:15:01,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:01,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:01,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:01,082 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:01,086 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:15:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:01,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:15:01,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-09-12 19:15:01,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:01,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:01,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970901891] [2024-09-12 19:15:01,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:01,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326951840] [2024-09-12 19:15:01,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326951840] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:01,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:01,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:15:01,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918320246] [2024-09-12 19:15:01,875 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:01,875 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:15:01,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:01,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:15:01,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:15:01,877 INFO L87 Difference]: Start difference. First operand 436 states and 528 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 19:15:02,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:02,358 INFO L93 Difference]: Finished difference Result 443 states and 539 transitions. [2024-09-12 19:15:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:15:02,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 110 [2024-09-12 19:15:02,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:02,361 INFO L225 Difference]: With dead ends: 443 [2024-09-12 19:15:02,361 INFO L226 Difference]: Without dead ends: 442 [2024-09-12 19:15:02,361 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:15:02,362 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 26 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:02,362 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 287 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:15:02,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-09-12 19:15:02,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 437. [2024-09-12 19:15:02,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 350 states have (on average 1.18) internal successors, (413), 366 states have internal predecessors, (413), 59 states have call successors, (59), 17 states have call predecessors, (59), 16 states have return successors, (57), 53 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 19:15:02,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 529 transitions. [2024-09-12 19:15:02,607 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 529 transitions. Word has length 110 [2024-09-12 19:15:02,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:02,607 INFO L474 AbstractCegarLoop]: Abstraction has 437 states and 529 transitions. [2024-09-12 19:15:02,607 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 19:15:02,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:02,608 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 529 transitions. [2024-09-12 19:15:02,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 19:15:02,608 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:02,608 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:02,621 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 19:15:02,809 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:02,809 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:02,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:02,809 INFO L85 PathProgramCache]: Analyzing trace with hash 432402739, now seen corresponding path program 1 times [2024-09-12 19:15:02,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:02,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203451688] [2024-09-12 19:15:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:02,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:02,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36440854] [2024-09-12 19:15:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:02,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:02,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:02,837 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:02,838 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:15:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:02,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 19:15:02,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:03,334 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-09-12 19:15:03,335 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:04,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:04,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203451688] [2024-09-12 19:15:04,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:04,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36440854] [2024-09-12 19:15:04,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36440854] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:04,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:04,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 19:15:04,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099392000] [2024-09-12 19:15:04,418 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:04,418 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 19:15:04,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:04,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 19:15:04,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:15:04,419 INFO L87 Difference]: Start difference. First operand 437 states and 529 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 19:15:05,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:05,128 INFO L93 Difference]: Finished difference Result 592 states and 727 transitions. [2024-09-12 19:15:05,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:15:05,128 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 111 [2024-09-12 19:15:05,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:05,131 INFO L225 Difference]: With dead ends: 592 [2024-09-12 19:15:05,131 INFO L226 Difference]: Without dead ends: 385 [2024-09-12 19:15:05,132 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:15:05,132 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 106 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:05,132 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 404 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:15:05,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-09-12 19:15:05,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 376. [2024-09-12 19:15:05,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 301 states have (on average 1.186046511627907) internal successors, (357), 312 states have internal predecessors, (357), 50 states have call successors, (50), 15 states have call predecessors, (50), 14 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 19:15:05,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 455 transitions. [2024-09-12 19:15:05,334 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 455 transitions. Word has length 111 [2024-09-12 19:15:05,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:05,334 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 455 transitions. [2024-09-12 19:15:05,334 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 19:15:05,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:05,335 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 455 transitions. [2024-09-12 19:15:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-09-12 19:15:05,335 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:05,335 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:05,350 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:05,536 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:15:05,536 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:05,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:05,536 INFO L85 PathProgramCache]: Analyzing trace with hash 519583159, now seen corresponding path program 1 times [2024-09-12 19:15:05,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:05,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431028607] [2024-09-12 19:15:05,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:05,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:15:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:15:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:15:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:15:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:15:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:15:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:15:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:15:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:15:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:15:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:15:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 19:15:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 19:15:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:15:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-09-12 19:15:05,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:05,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431028607] [2024-09-12 19:15:05,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431028607] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:15:05,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:15:05,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:15:05,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601491359] [2024-09-12 19:15:05,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:15:05,667 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:15:05,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:05,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:15:05,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:15:05,668 INFO L87 Difference]: Start difference. First operand 376 states and 455 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 19:15:06,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:06,428 INFO L93 Difference]: Finished difference Result 376 states and 455 transitions. [2024-09-12 19:15:06,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:15:06,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-09-12 19:15:06,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:06,430 INFO L225 Difference]: With dead ends: 376 [2024-09-12 19:15:06,430 INFO L226 Difference]: Without dead ends: 375 [2024-09-12 19:15:06,431 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:15:06,431 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 42 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:06,431 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 166 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:15:06,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-09-12 19:15:06,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2024-09-12 19:15:06,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 301 states have (on average 1.1827242524916943) internal successors, (356), 311 states have internal predecessors, (356), 50 states have call successors, (50), 15 states have call predecessors, (50), 14 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 19:15:06,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 454 transitions. [2024-09-12 19:15:06,598 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 454 transitions. Word has length 112 [2024-09-12 19:15:06,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:06,599 INFO L474 AbstractCegarLoop]: Abstraction has 375 states and 454 transitions. [2024-09-12 19:15:06,599 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 19:15:06,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 454 transitions. [2024-09-12 19:15:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-09-12 19:15:06,600 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:06,600 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:06,600 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-09-12 19:15:06,600 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:06,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:06,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1939105271, now seen corresponding path program 1 times [2024-09-12 19:15:06,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:06,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387466291] [2024-09-12 19:15:06,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:06,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:15:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:15:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:15:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:15:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:15:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:15:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:15:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:15:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:15:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:15:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:15:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:15:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:15:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:15:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 19:15:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:15:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,701 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-09-12 19:15:06,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:06,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387466291] [2024-09-12 19:15:06,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387466291] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:06,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630186933] [2024-09-12 19:15:06,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:06,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:06,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:06,703 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:06,706 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:15:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:06,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:15:06,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-09-12 19:15:06,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:06,954 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-09-12 19:15:06,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630186933] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:06,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:15:06,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 19:15:06,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431077328] [2024-09-12 19:15:06,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:06,955 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:15:06,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:06,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:15:06,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:15:06,955 INFO L87 Difference]: Start difference. First operand 375 states and 454 transitions. Second operand has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 19:15:07,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:07,566 INFO L93 Difference]: Finished difference Result 746 states and 942 transitions. [2024-09-12 19:15:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:15:07,566 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 114 [2024-09-12 19:15:07,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:07,569 INFO L225 Difference]: With dead ends: 746 [2024-09-12 19:15:07,569 INFO L226 Difference]: Without dead ends: 744 [2024-09-12 19:15:07,570 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:15:07,570 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 272 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:07,570 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 304 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:15:07,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-09-12 19:15:07,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 452. [2024-09-12 19:15:07,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 362 states have (on average 1.171270718232044) internal successors, (424), 372 states have internal predecessors, (424), 66 states have call successors, (66), 15 states have call predecessors, (66), 14 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 19:15:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 554 transitions. [2024-09-12 19:15:07,890 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 554 transitions. Word has length 114 [2024-09-12 19:15:07,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:07,890 INFO L474 AbstractCegarLoop]: Abstraction has 452 states and 554 transitions. [2024-09-12 19:15:07,890 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 19:15:07,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:07,890 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 554 transitions. [2024-09-12 19:15:07,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-09-12 19:15:07,891 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:07,891 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:07,903 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 19:15:08,091 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:15:08,091 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:08,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:08,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1072791115, now seen corresponding path program 1 times [2024-09-12 19:15:08,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:08,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034554392] [2024-09-12 19:15:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:08,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:08,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690288900] [2024-09-12 19:15:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:08,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:08,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:08,113 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:08,117 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:15:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:08,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:15:08,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-09-12 19:15:08,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:12,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:12,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034554392] [2024-09-12 19:15:12,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:12,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690288900] [2024-09-12 19:15:12,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690288900] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:12,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:12,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:15:12,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158749634] [2024-09-12 19:15:12,247 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:12,247 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:15:12,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:12,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:15:12,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=122, Unknown=1, NotChecked=0, Total=156 [2024-09-12 19:15:12,248 INFO L87 Difference]: Start difference. First operand 452 states and 554 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 19:15:12,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:12,694 INFO L93 Difference]: Finished difference Result 462 states and 564 transitions. [2024-09-12 19:15:12,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:15:12,695 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2024-09-12 19:15:12,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:12,697 INFO L225 Difference]: With dead ends: 462 [2024-09-12 19:15:12,697 INFO L226 Difference]: Without dead ends: 461 [2024-09-12 19:15:12,697 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=56, Invalid=215, Unknown=1, NotChecked=0, Total=272 [2024-09-12 19:15:12,698 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 82 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:12,698 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 309 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:15:12,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-09-12 19:15:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 454. [2024-09-12 19:15:12,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 364 states have (on average 1.1703296703296704) internal successors, (426), 374 states have internal predecessors, (426), 66 states have call successors, (66), 15 states have call predecessors, (66), 14 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 19:15:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 556 transitions. [2024-09-12 19:15:12,998 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 556 transitions. Word has length 113 [2024-09-12 19:15:12,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:12,999 INFO L474 AbstractCegarLoop]: Abstraction has 454 states and 556 transitions. [2024-09-12 19:15:12,999 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 19:15:13,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:13,002 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 556 transitions. [2024-09-12 19:15:13,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 19:15:13,003 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:13,003 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:13,020 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:13,207 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:13,208 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:13,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:13,208 INFO L85 PathProgramCache]: Analyzing trace with hash 758043481, now seen corresponding path program 1 times [2024-09-12 19:15:13,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:13,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738268604] [2024-09-12 19:15:13,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:13,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:13,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853631615] [2024-09-12 19:15:13,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:13,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:13,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:13,232 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:13,234 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:15:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:13,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 19:15:13,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:13,993 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 52 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-09-12 19:15:13,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 46 proven. 18 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-09-12 19:15:14,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:14,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738268604] [2024-09-12 19:15:14,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:14,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853631615] [2024-09-12 19:15:14,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853631615] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:14,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:15:14,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 27 [2024-09-12 19:15:14,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182209218] [2024-09-12 19:15:14,475 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:14,476 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 19:15:14,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:14,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 19:15:14,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:15:14,477 INFO L87 Difference]: Start difference. First operand 454 states and 556 transitions. Second operand has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 23 states have internal predecessors, (106), 11 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 12 states have call predecessors, (25), 9 states have call successors, (25) [2024-09-12 19:15:15,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:15,935 INFO L93 Difference]: Finished difference Result 484 states and 583 transitions. [2024-09-12 19:15:15,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:15:15,936 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 23 states have internal predecessors, (106), 11 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 12 states have call predecessors, (25), 9 states have call successors, (25) Word has length 117 [2024-09-12 19:15:15,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:15,938 INFO L225 Difference]: With dead ends: 484 [2024-09-12 19:15:15,938 INFO L226 Difference]: Without dead ends: 442 [2024-09-12 19:15:15,939 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=294, Invalid=1346, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 19:15:15,939 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 200 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:15,940 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 478 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:15:15,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-09-12 19:15:16,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 439. [2024-09-12 19:15:16,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 348 states have (on average 1.1724137931034482) internal successors, (408), 359 states have internal predecessors, (408), 64 states have call successors, (64), 19 states have call predecessors, (64), 18 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 19:15:16,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 534 transitions. [2024-09-12 19:15:16,169 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 534 transitions. Word has length 117 [2024-09-12 19:15:16,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:16,169 INFO L474 AbstractCegarLoop]: Abstraction has 439 states and 534 transitions. [2024-09-12 19:15:16,170 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 23 states have internal predecessors, (106), 11 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 12 states have call predecessors, (25), 9 states have call successors, (25) [2024-09-12 19:15:16,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:16,170 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 534 transitions. [2024-09-12 19:15:16,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 19:15:16,171 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:16,171 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:16,183 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:16,371 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:16,372 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:16,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:16,372 INFO L85 PathProgramCache]: Analyzing trace with hash 2138845960, now seen corresponding path program 2 times [2024-09-12 19:15:16,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:16,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144560873] [2024-09-12 19:15:16,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:16,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:16,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013784576] [2024-09-12 19:15:16,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:15:16,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:16,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:16,403 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:16,404 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:15:16,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:15:16,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:16,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 19:15:16,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:17,084 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-09-12 19:15:17,084 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:17,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:17,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144560873] [2024-09-12 19:15:17,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:17,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013784576] [2024-09-12 19:15:17,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013784576] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:17,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:17,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 19:15:17,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709681011] [2024-09-12 19:15:17,607 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:17,607 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:15:17,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:17,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:15:17,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:15:17,608 INFO L87 Difference]: Start difference. First operand 439 states and 534 transitions. Second operand has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 19:15:18,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:18,401 INFO L93 Difference]: Finished difference Result 457 states and 557 transitions. [2024-09-12 19:15:18,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:15:18,401 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 117 [2024-09-12 19:15:18,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:18,403 INFO L225 Difference]: With dead ends: 457 [2024-09-12 19:15:18,403 INFO L226 Difference]: Without dead ends: 456 [2024-09-12 19:15:18,404 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=210, Invalid=782, Unknown=0, NotChecked=0, Total=992 [2024-09-12 19:15:18,404 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 133 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:18,404 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 460 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:15:18,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-09-12 19:15:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 439. [2024-09-12 19:15:18,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 348 states have (on average 1.1666666666666667) internal successors, (406), 359 states have internal predecessors, (406), 64 states have call successors, (64), 19 states have call predecessors, (64), 18 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 19:15:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 532 transitions. [2024-09-12 19:15:18,664 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 532 transitions. Word has length 117 [2024-09-12 19:15:18,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:18,665 INFO L474 AbstractCegarLoop]: Abstraction has 439 states and 532 transitions. [2024-09-12 19:15:18,665 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 19:15:18,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 532 transitions. [2024-09-12 19:15:18,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-12 19:15:18,666 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:18,666 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:18,682 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 19:15:18,867 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 19:15:18,867 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:18,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:18,867 INFO L85 PathProgramCache]: Analyzing trace with hash -548809431, now seen corresponding path program 2 times [2024-09-12 19:15:18,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:18,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612042687] [2024-09-12 19:15:18,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:18,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:18,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:15:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:18,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:15:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:18,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:15:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:18,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:15:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:18,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:15:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:18,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:15:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:18,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:15:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:15:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:15:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:15:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:15:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:15:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:15:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:15:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 19:15:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:15:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 19:15:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:19,024 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:19,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:19,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612042687] [2024-09-12 19:15:19,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612042687] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:19,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458010029] [2024-09-12 19:15:19,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:15:19,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:19,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:19,027 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:19,028 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 19:15:19,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:15:19,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:19,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:15:19,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:19,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:19,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458010029] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:19,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:15:19,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-09-12 19:15:19,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539183607] [2024-09-12 19:15:19,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:19,312 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:15:19,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:19,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:15:19,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:15:19,313 INFO L87 Difference]: Start difference. First operand 439 states and 532 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-09-12 19:15:19,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:19,680 INFO L93 Difference]: Finished difference Result 456 states and 545 transitions. [2024-09-12 19:15:19,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:15:19,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 133 [2024-09-12 19:15:19,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:19,682 INFO L225 Difference]: With dead ends: 456 [2024-09-12 19:15:19,682 INFO L226 Difference]: Without dead ends: 439 [2024-09-12 19:15:19,682 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 297 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:15:19,682 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 26 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:19,683 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 251 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:15:19,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-09-12 19:15:19,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 437. [2024-09-12 19:15:19,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 346 states have (on average 1.1560693641618498) internal successors, (400), 357 states have internal predecessors, (400), 64 states have call successors, (64), 19 states have call predecessors, (64), 18 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 19:15:19,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 526 transitions. [2024-09-12 19:15:19,906 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 526 transitions. Word has length 133 [2024-09-12 19:15:19,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:19,906 INFO L474 AbstractCegarLoop]: Abstraction has 437 states and 526 transitions. [2024-09-12 19:15:19,906 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-09-12 19:15:19,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:19,907 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 526 transitions. [2024-09-12 19:15:19,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:15:19,907 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:19,907 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:19,919 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-12 19:15:20,108 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 19:15:20,108 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:20,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:20,108 INFO L85 PathProgramCache]: Analyzing trace with hash -170622891, now seen corresponding path program 1 times [2024-09-12 19:15:20,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:20,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154918882] [2024-09-12 19:15:20,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:20,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:15:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:15:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:15:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:15:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:15:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:15:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:15:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:15:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:15:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:15:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:15:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:15:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:15:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:15:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 19:15:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:15:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 19:15:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,348 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-09-12 19:15:20,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:20,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154918882] [2024-09-12 19:15:20,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154918882] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:20,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379045744] [2024-09-12 19:15:20,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:20,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:20,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:20,351 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:20,352 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 19:15:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:20,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:15:20,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2024-09-12 19:15:20,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:21,640 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2024-09-12 19:15:21,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379045744] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:21,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:15:21,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-09-12 19:15:21,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862208576] [2024-09-12 19:15:21,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:21,641 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 19:15:21,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:21,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 19:15:21,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:15:21,642 INFO L87 Difference]: Start difference. First operand 437 states and 526 transitions. Second operand has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2024-09-12 19:15:23,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:23,955 INFO L93 Difference]: Finished difference Result 884 states and 1116 transitions. [2024-09-12 19:15:23,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 19:15:23,956 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) Word has length 139 [2024-09-12 19:15:23,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:23,960 INFO L225 Difference]: With dead ends: 884 [2024-09-12 19:15:23,960 INFO L226 Difference]: Without dead ends: 883 [2024-09-12 19:15:23,961 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=626, Invalid=1630, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 19:15:23,961 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 845 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:23,961 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 724 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:15:23,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-09-12 19:15:24,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 565. [2024-09-12 19:15:24,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 462 states have (on average 1.199134199134199) internal successors, (554), 473 states have internal predecessors, (554), 76 states have call successors, (76), 19 states have call predecessors, (76), 18 states have return successors, (74), 72 states have call predecessors, (74), 74 states have call successors, (74) [2024-09-12 19:15:24,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 704 transitions. [2024-09-12 19:15:24,347 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 704 transitions. Word has length 139 [2024-09-12 19:15:24,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:24,347 INFO L474 AbstractCegarLoop]: Abstraction has 565 states and 704 transitions. [2024-09-12 19:15:24,348 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2024-09-12 19:15:24,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:24,348 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 704 transitions. [2024-09-12 19:15:24,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-09-12 19:15:24,349 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:24,349 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:24,360 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-09-12 19:15:24,549 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 19:15:24,549 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:24,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:24,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1780312404, now seen corresponding path program 3 times [2024-09-12 19:15:24,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:24,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28717808] [2024-09-12 19:15:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:24,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:24,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [128518963] [2024-09-12 19:15:24,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:15:24,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:24,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:24,570 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:24,581 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 19:15:24,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:15:24,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:24,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:15:24,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 39 proven. 32 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-09-12 19:15:24,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:25,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:25,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28717808] [2024-09-12 19:15:25,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:25,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128518963] [2024-09-12 19:15:25,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128518963] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:25,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:25,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 19:15:25,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973136611] [2024-09-12 19:15:25,265 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:25,266 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:15:25,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:25,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:15:25,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:15:25,266 INFO L87 Difference]: Start difference. First operand 565 states and 704 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:15:27,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:27,164 INFO L93 Difference]: Finished difference Result 612 states and 764 transitions. [2024-09-12 19:15:27,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:15:27,169 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2024-09-12 19:15:27,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:27,171 INFO L225 Difference]: With dead ends: 612 [2024-09-12 19:15:27,171 INFO L226 Difference]: Without dead ends: 611 [2024-09-12 19:15:27,171 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:15:27,171 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 86 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:27,172 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 320 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 1.4s Time] [2024-09-12 19:15:27,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-09-12 19:15:27,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 595. [2024-09-12 19:15:27,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 488 states have (on average 1.194672131147541) internal successors, (583), 499 states have internal predecessors, (583), 80 states have call successors, (80), 19 states have call predecessors, (80), 18 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-09-12 19:15:27,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 741 transitions. [2024-09-12 19:15:27,561 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 741 transitions. Word has length 140 [2024-09-12 19:15:27,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:27,561 INFO L474 AbstractCegarLoop]: Abstraction has 595 states and 741 transitions. [2024-09-12 19:15:27,561 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:15:27,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:27,562 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 741 transitions. [2024-09-12 19:15:27,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-09-12 19:15:27,563 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:27,563 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:27,575 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:27,766 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 19:15:27,767 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:27,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:27,767 INFO L85 PathProgramCache]: Analyzing trace with hash -759837033, now seen corresponding path program 1 times [2024-09-12 19:15:27,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:27,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953284300] [2024-09-12 19:15:27,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:27,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:15:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:15:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:15:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:15:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:15:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:15:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:15:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:15:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:15:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:15:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:15:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:15:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:15:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:15:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 19:15:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:15:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 19:15:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,055 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:28,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:28,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953284300] [2024-09-12 19:15:28,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953284300] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:28,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856212988] [2024-09-12 19:15:28,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:28,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:28,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:28,058 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:28,060 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 19:15:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:15:28,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:15:28,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:28,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:29,213 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-09-12 19:15:29,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856212988] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:29,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:15:29,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-09-12 19:15:29,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632135799] [2024-09-12 19:15:29,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:29,214 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 19:15:29,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:29,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 19:15:29,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:15:29,215 INFO L87 Difference]: Start difference. First operand 595 states and 741 transitions. Second operand has 19 states, 18 states have (on average 9.666666666666666) internal successors, (174), 19 states have internal predecessors, (174), 13 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) [2024-09-12 19:15:30,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:30,872 INFO L93 Difference]: Finished difference Result 882 states and 1110 transitions. [2024-09-12 19:15:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 19:15:30,873 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.666666666666666) internal successors, (174), 19 states have internal predecessors, (174), 13 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) Word has length 141 [2024-09-12 19:15:30,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:30,876 INFO L225 Difference]: With dead ends: 882 [2024-09-12 19:15:30,876 INFO L226 Difference]: Without dead ends: 881 [2024-09-12 19:15:30,876 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 306 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=333, Invalid=537, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:15:30,876 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 313 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:30,877 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 568 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:15:30,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-09-12 19:15:31,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 783. [2024-09-12 19:15:31,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 656 states have (on average 1.1951219512195121) internal successors, (784), 667 states have internal predecessors, (784), 100 states have call successors, (100), 19 states have call predecessors, (100), 18 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-09-12 19:15:31,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 982 transitions. [2024-09-12 19:15:31,533 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 982 transitions. Word has length 141 [2024-09-12 19:15:31,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:31,533 INFO L474 AbstractCegarLoop]: Abstraction has 783 states and 982 transitions. [2024-09-12 19:15:31,534 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.666666666666666) internal successors, (174), 19 states have internal predecessors, (174), 13 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) [2024-09-12 19:15:31,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:31,534 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 982 transitions. [2024-09-12 19:15:31,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-09-12 19:15:31,535 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:31,535 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:31,548 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-09-12 19:15:31,735 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:31,735 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:31,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:31,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1483239446, now seen corresponding path program 2 times [2024-09-12 19:15:31,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:31,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516569156] [2024-09-12 19:15:31,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:31,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:31,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1880515831] [2024-09-12 19:15:31,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:15:31,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:31,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:31,757 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:31,762 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 19:15:31,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:15:31,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:31,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 19:15:31,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-09-12 19:15:32,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-09-12 19:15:34,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:34,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516569156] [2024-09-12 19:15:34,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:34,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880515831] [2024-09-12 19:15:34,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880515831] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:15:34,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:15:34,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2024-09-12 19:15:34,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611835033] [2024-09-12 19:15:34,232 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:34,233 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 19:15:34,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:34,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 19:15:34,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2024-09-12 19:15:34,234 INFO L87 Difference]: Start difference. First operand 783 states and 982 transitions. Second operand has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 10 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2024-09-12 19:15:40,749 WARN L293 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 90 DAG size of output: 81 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:15:48,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:48,148 INFO L93 Difference]: Finished difference Result 903 states and 1128 transitions. [2024-09-12 19:15:48,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-12 19:15:48,148 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 10 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) Word has length 142 [2024-09-12 19:15:48,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:48,151 INFO L225 Difference]: With dead ends: 903 [2024-09-12 19:15:48,151 INFO L226 Difference]: Without dead ends: 902 [2024-09-12 19:15:48,152 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=607, Invalid=2363, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 19:15:48,152 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 470 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 2569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:48,152 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 862 Invalid, 2569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-09-12 19:15:48,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-09-12 19:15:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 865. [2024-09-12 19:15:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 730 states have (on average 1.180821917808219) internal successors, (862), 741 states have internal predecessors, (862), 108 states have call successors, (108), 19 states have call predecessors, (108), 18 states have return successors, (106), 104 states have call predecessors, (106), 106 states have call successors, (106) [2024-09-12 19:15:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1076 transitions. [2024-09-12 19:15:48,819 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1076 transitions. Word has length 142 [2024-09-12 19:15:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:48,820 INFO L474 AbstractCegarLoop]: Abstraction has 865 states and 1076 transitions. [2024-09-12 19:15:48,820 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 10 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2024-09-12 19:15:48,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:48,820 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1076 transitions. [2024-09-12 19:15:48,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-09-12 19:15:48,820 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:48,821 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:48,833 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-09-12 19:15:49,021 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 19:15:49,021 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:49,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:49,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1827312733, now seen corresponding path program 4 times [2024-09-12 19:15:49,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:49,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668325756] [2024-09-12 19:15:49,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:49,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:49,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [619492619] [2024-09-12 19:15:49,059 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:15:49,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:49,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:49,062 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:49,064 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 19:15:49,127 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:15:49,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:49,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:15:49,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:15:49,742 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-09-12 19:15:49,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:15:50,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:15:50,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668325756] [2024-09-12 19:15:50,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:15:50,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619492619] [2024-09-12 19:15:50,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619492619] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:15:50,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:15:50,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 19:15:50,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403415193] [2024-09-12 19:15:50,045 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:15:50,046 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:15:50,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:15:50,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:15:50,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:15:50,046 INFO L87 Difference]: Start difference. First operand 865 states and 1076 transitions. Second operand has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 19:15:51,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:15:51,198 INFO L93 Difference]: Finished difference Result 899 states and 1118 transitions. [2024-09-12 19:15:51,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:15:51,198 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 144 [2024-09-12 19:15:51,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:15:51,201 INFO L225 Difference]: With dead ends: 899 [2024-09-12 19:15:51,201 INFO L226 Difference]: Without dead ends: 898 [2024-09-12 19:15:51,201 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:15:51,202 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 122 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:15:51,202 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 380 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:15:51,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-09-12 19:15:51,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 865. [2024-09-12 19:15:51,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 730 states have (on average 1.1767123287671233) internal successors, (859), 741 states have internal predecessors, (859), 108 states have call successors, (108), 19 states have call predecessors, (108), 18 states have return successors, (106), 104 states have call predecessors, (106), 106 states have call successors, (106) [2024-09-12 19:15:51,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1073 transitions. [2024-09-12 19:15:51,901 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1073 transitions. Word has length 144 [2024-09-12 19:15:51,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:15:51,901 INFO L474 AbstractCegarLoop]: Abstraction has 865 states and 1073 transitions. [2024-09-12 19:15:51,901 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 19:15:51,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1073 transitions. [2024-09-12 19:15:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-12 19:15:51,902 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:15:51,902 INFO L216 NwaCegarLoop]: trace histogram [15, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:15:51,914 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-09-12 19:15:52,102 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 19:15:52,103 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:15:52,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:15:52,103 INFO L85 PathProgramCache]: Analyzing trace with hash 272029630, now seen corresponding path program 3 times [2024-09-12 19:15:52,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:15:52,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183084860] [2024-09-12 19:15:52,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:15:52,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:15:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:15:52,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339313629] [2024-09-12 19:15:52,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:15:52,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:15:52,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:15:52,123 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:15:52,125 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 19:15:52,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:15:52,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:15:52,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-09-12 19:15:52,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:16:24,795 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 114 proven. 17 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-09-12 19:16:24,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:16:31,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:16:31,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183084860] [2024-09-12 19:16:31,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:16:31,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339313629] [2024-09-12 19:16:31,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339313629] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:16:31,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:16:31,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 19:16:31,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619054032] [2024-09-12 19:16:31,048 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:16:31,048 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:16:31,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:16:31,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:16:31,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:16:31,049 INFO L87 Difference]: Start difference. First operand 865 states and 1073 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:16:32,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:16:37,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:16:37,107 INFO L93 Difference]: Finished difference Result 865 states and 1073 transitions. [2024-09-12 19:16:37,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:16:37,107 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 146 [2024-09-12 19:16:37,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:16:37,108 INFO L225 Difference]: With dead ends: 865 [2024-09-12 19:16:37,108 INFO L226 Difference]: Without dead ends: 150 [2024-09-12 19:16:37,110 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:16:37,110 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 28 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:16:37,110 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 263 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-09-12 19:16:37,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-09-12 19:16:37,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-09-12 19:16:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 106 states have (on average 1.009433962264151) internal successors, (107), 106 states have internal predecessors, (107), 32 states have call successors, (32), 12 states have call predecessors, (32), 11 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 19:16:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 170 transitions. [2024-09-12 19:16:37,238 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 170 transitions. Word has length 146 [2024-09-12 19:16:37,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:16:37,238 INFO L474 AbstractCegarLoop]: Abstraction has 150 states and 170 transitions. [2024-09-12 19:16:37,238 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:16:37,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 170 transitions. [2024-09-12 19:16:37,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-09-12 19:16:37,240 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:16:37,240 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:16:37,257 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-09-12 19:16:37,444 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 19:16:37,445 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:16:37,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:37,445 INFO L85 PathProgramCache]: Analyzing trace with hash 472079421, now seen corresponding path program 2 times [2024-09-12 19:16:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:16:37,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225667790] [2024-09-12 19:16:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:16:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:16:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:16:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:16:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:16:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:16:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:16:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:16:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:16:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:16:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:16:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:16:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:16:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:16:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:16:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:16:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 19:16:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:16:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:16:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:16:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 19:16:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 19:16:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:16:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 19:16:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 19:16:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 19:16:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 19:16:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 19:16:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 19:16:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 19:16:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 19:16:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 19:16:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 19:16:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:37,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2024-09-12 19:16:37,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:16:37,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225667790] [2024-09-12 19:16:37,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225667790] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:16:37,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494310662] [2024-09-12 19:16:37,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:16:37,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:37,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:16:37,709 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:16:37,710 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 19:16:37,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:16:37,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:16:37,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:16:37,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:16:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2024-09-12 19:16:37,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:16:38,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2024-09-12 19:16:38,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494310662] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:16:38,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:16:38,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-09-12 19:16:38,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940382487] [2024-09-12 19:16:38,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:16:38,148 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:16:38,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:16:38,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:16:38,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:16:38,149 INFO L87 Difference]: Start difference. First operand 150 states and 170 transitions. Second operand has 21 states, 20 states have (on average 8.2) internal successors, (164), 21 states have internal predecessors, (164), 20 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (61), 20 states have call predecessors, (61), 20 states have call successors, (61) [2024-09-12 19:16:38,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:16:38,493 INFO L93 Difference]: Finished difference Result 261 states and 320 transitions. [2024-09-12 19:16:38,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 19:16:38,493 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 8.2) internal successors, (164), 21 states have internal predecessors, (164), 20 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (61), 20 states have call predecessors, (61), 20 states have call successors, (61) Word has length 229 [2024-09-12 19:16:38,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:16:38,495 INFO L225 Difference]: With dead ends: 261 [2024-09-12 19:16:38,495 INFO L226 Difference]: Without dead ends: 260 [2024-09-12 19:16:38,496 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 510 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:16:38,496 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:16:38,496 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:16:38,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-09-12 19:16:38,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2024-09-12 19:16:38,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 186 states have (on average 1.0053763440860215) internal successors, (187), 186 states have internal predecessors, (187), 62 states have call successors, (62), 12 states have call predecessors, (62), 11 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-09-12 19:16:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 310 transitions. [2024-09-12 19:16:38,787 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 310 transitions. Word has length 229 [2024-09-12 19:16:38,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:16:38,787 INFO L474 AbstractCegarLoop]: Abstraction has 260 states and 310 transitions. [2024-09-12 19:16:38,787 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 8.2) internal successors, (164), 21 states have internal predecessors, (164), 20 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (61), 20 states have call predecessors, (61), 20 states have call successors, (61) [2024-09-12 19:16:38,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:38,787 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 310 transitions. [2024-09-12 19:16:38,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-09-12 19:16:38,789 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:16:38,789 INFO L216 NwaCegarLoop]: trace histogram [57, 57, 57, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:16:38,802 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 19:16:38,989 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 19:16:38,990 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:16:38,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:38,990 INFO L85 PathProgramCache]: Analyzing trace with hash 54849725, now seen corresponding path program 3 times [2024-09-12 19:16:38,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:16:38,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720276881] [2024-09-12 19:16:38,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:16:38,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:16:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:16:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:16:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:16:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:16:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:16:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 19:16:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:16:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 19:16:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:16:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:16:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:16:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 19:16:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:16:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:16:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 19:16:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:16:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:16:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:16:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 19:16:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 19:16:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:16:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 19:16:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 19:16:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 19:16:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 19:16:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 19:16:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 19:16:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 19:16:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 19:16:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 19:16:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 19:16:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 19:16:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 19:16:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 19:16:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 19:16:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 19:16:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 19:16:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 19:16:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 19:16:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 19:16:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 19:16:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 19:16:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 19:16:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 19:16:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 19:16:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 19:16:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-09-12 19:16:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 19:16:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 19:16:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-09-12 19:16:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-09-12 19:16:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 19:16:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 19:16:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-09-12 19:16:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-09-12 19:16:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-09-12 19:16:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 19:16:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2024-09-12 19:16:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-09-12 19:16:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-09-12 19:16:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2024-09-12 19:16:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:16:39,718 INFO L134 CoverageAnalysis]: Checked inductivity of 8277 backedges. 0 proven. 1881 refuted. 0 times theorem prover too weak. 6396 trivial. 0 not checked. [2024-09-12 19:16:39,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:16:39,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720276881] [2024-09-12 19:16:39,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720276881] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:16:39,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999279606] [2024-09-12 19:16:39,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:16:39,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:39,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:16:39,720 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:16:39,722 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 19:16:39,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:16:39,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:16:39,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:16:39,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:16:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 8277 backedges. 174 proven. 90 refuted. 0 times theorem prover too weak. 8013 trivial. 0 not checked. [2024-09-12 19:16:40,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:16:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 8277 backedges. 174 proven. 90 refuted. 0 times theorem prover too weak. 8013 trivial. 0 not checked. [2024-09-12 19:16:40,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999279606] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:16:40,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:16:40,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 8, 8] total 31 [2024-09-12 19:16:40,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291808710] [2024-09-12 19:16:40,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:16:40,961 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 19:16:40,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:16:40,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 19:16:40,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=694, Unknown=0, NotChecked=0, Total=992 [2024-09-12 19:16:40,962 INFO L87 Difference]: Start difference. First operand 260 states and 310 transitions. Second operand has 32 states, 31 states have (on average 6.161290322580645) internal successors, (191), 32 states have internal predecessors, (191), 21 states have call successors, (65), 1 states have call predecessors, (65), 3 states have return successors, (67), 23 states have call predecessors, (67), 21 states have call successors, (67) [2024-09-12 19:16:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:16:42,478 INFO L93 Difference]: Finished difference Result 280 states and 337 transitions. [2024-09-12 19:16:42,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-12 19:16:42,479 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.161290322580645) internal successors, (191), 32 states have internal predecessors, (191), 21 states have call successors, (65), 1 states have call predecessors, (65), 3 states have return successors, (67), 23 states have call predecessors, (67), 21 states have call successors, (67) Word has length 459 [2024-09-12 19:16:42,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:16:42,480 INFO L225 Difference]: With dead ends: 280 [2024-09-12 19:16:42,480 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:16:42,482 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1100 GetRequests, 1027 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1170 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1553, Invalid=3703, Unknown=0, NotChecked=0, Total=5256 [2024-09-12 19:16:42,482 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:16:42,482 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 142 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:16:42,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:16:42,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:16:42,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 19:16:42,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:16:42,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 459 [2024-09-12 19:16:42,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:16:42,483 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:16:42,484 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.161290322580645) internal successors, (191), 32 states have internal predecessors, (191), 21 states have call successors, (65), 1 states have call predecessors, (65), 3 states have return successors, (67), 23 states have call predecessors, (67), 21 states have call successors, (67) [2024-09-12 19:16:42,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:16:42,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:16:42,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:16:42,486 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-09-12 19:16:42,487 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-09-12 19:16:42,487 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-09-12 19:16:42,487 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-09-12 19:16:42,487 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-09-12 19:16:42,487 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-09-12 19:16:42,487 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-09-12 19:16:42,487 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-09-12 19:16:42,488 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-09-12 19:16:42,488 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-09-12 19:16:42,488 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-09-12 19:16:42,488 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-09-12 19:16:42,488 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2024-09-12 19:16:42,488 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2024-09-12 19:16:42,488 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2024-09-12 19:16:42,488 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-09-12 19:16:42,488 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-09-12 19:16:42,488 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-09-12 19:16:42,489 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-09-12 19:16:42,489 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-09-12 19:16:42,489 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-09-12 19:16:42,489 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-09-12 19:16:42,489 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-09-12 19:16:42,489 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-09-12 19:16:42,489 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 25 remaining) [2024-09-12 19:16:42,506 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 19:16:42,693 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:16:42,696 INFO L408 BasicCegarLoop]: Path program histogram: [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] [2024-09-12 19:16:42,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:17:04,738 WARN L293 SmtUtils]: Spent 12.44s on a formula simplification. DAG size of input: 244 DAG size of output: 23 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 19:17:14,496 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:17:14,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:17:14 BoogieIcfgContainer [2024-09-12 19:17:14,514 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:17:14,515 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:17:14,515 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:17:14,515 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:17:14,515 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:14:14" (3/4) ... [2024-09-12 19:17:14,517 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:17:14,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:17:14,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-09-12 19:17:14,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:17:14,521 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:17:14,525 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-09-12 19:17:14,526 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-09-12 19:17:14,527 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:17:14,527 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:17:14,620 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:17:14,620 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:17:14,620 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:17:14,621 INFO L158 Benchmark]: Toolchain (without parser) took 181266.44ms. Allocated memory was 65.0MB in the beginning and 752.9MB in the end (delta: 687.9MB). Free memory was 40.9MB in the beginning and 405.0MB in the end (delta: -364.1MB). Peak memory consumption was 324.8MB. Max. memory is 16.1GB. [2024-09-12 19:17:14,621 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 29.6MB in the beginning and 29.6MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:17:14,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.13ms. Allocated memory is still 65.0MB. Free memory was 40.6MB in the beginning and 28.7MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 19:17:14,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.37ms. Allocated memory is still 65.0MB. Free memory was 28.7MB in the beginning and 27.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:17:14,621 INFO L158 Benchmark]: Boogie Preprocessor took 65.65ms. Allocated memory is still 65.0MB. Free memory was 27.6MB in the beginning and 25.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:17:14,622 INFO L158 Benchmark]: RCFGBuilder took 572.98ms. Allocated memory is still 65.0MB. Free memory was 25.7MB in the beginning and 29.2MB in the end (delta: -3.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-09-12 19:17:14,622 INFO L158 Benchmark]: TraceAbstraction took 180211.22ms. Allocated memory was 65.0MB in the beginning and 752.9MB in the end (delta: 687.9MB). Free memory was 28.6MB in the beginning and 410.2MB in the end (delta: -381.7MB). Peak memory consumption was 441.4MB. Max. memory is 16.1GB. [2024-09-12 19:17:14,622 INFO L158 Benchmark]: Witness Printer took 105.83ms. Allocated memory is still 752.9MB. Free memory was 410.2MB in the beginning and 405.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 19:17:14,623 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 29.6MB in the beginning and 29.6MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.13ms. Allocated memory is still 65.0MB. Free memory was 40.6MB in the beginning and 28.7MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.37ms. Allocated memory is still 65.0MB. Free memory was 28.7MB in the beginning and 27.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.65ms. Allocated memory is still 65.0MB. Free memory was 27.6MB in the beginning and 25.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 572.98ms. Allocated memory is still 65.0MB. Free memory was 25.7MB in the beginning and 29.2MB in the end (delta: -3.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * TraceAbstraction took 180211.22ms. Allocated memory was 65.0MB in the beginning and 752.9MB in the end (delta: 687.9MB). Free memory was 28.6MB in the beginning and 410.2MB in the end (delta: -381.7MB). Peak memory consumption was 441.4MB. Max. memory is 16.1GB. * Witness Printer took 105.83ms. Allocated memory is still 752.9MB. Free memory was 410.2MB in the beginning and 405.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 25 error locations. Started 1 CEGAR loops. OverallTime: 148.3s, OverallIterations: 41, TraceHistogramMax: 57, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 57.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 4915 SdHoareTripleChecker+Valid, 28.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4760 mSDsluCounter, 12242 SdHoareTripleChecker+Invalid, 26.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9697 mSDsCounter, 1043 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15926 IncrementalHoareTripleChecker+Invalid, 16976 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1043 mSolverCounterUnsat, 2545 mSDtfsCounter, 15926 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6756 GetRequests, 6083 SyntacticMatches, 13 SemanticMatches, 660 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4415 ImplicationChecksByTransitivity, 51.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=865occurred in iteration=37, InterpolantAutomatonStates: 506, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.4s AutomataMinimizationTime, 41 MinimizatonAttempts, 1352 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 73.8s InterpolantComputationTime, 7710 NumberOfCodeBlocks, 7106 NumberOfCodeBlocksAsserted, 85 NumberOfCheckSat, 7677 ConstructedInterpolants, 19 QuantifiedInterpolants, 46764 SizeOfPredicates, 59 NumberOfNonLiveVariables, 5679 ConjunctsInSsa, 456 ConjunctsInUnsatCore, 65 InterpolantComputations, 16 PerfectInterpolantSequences, 37645/41924 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 25 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((B % 4294967296) <= 20) && ((A % 4294967296) == r)) && ((d + ((B / 4294967296) * 4294967296)) == B)) && (q == 0)) && (p == 1)) || ((((((((A % 4294967296) == r) && (d == ((long long) 2 * (B % 4294967296)))) && ((A % 4294967296) <= 20)) && (((__int128) r + 1) <= d)) && (p == 2)) && (q == 0)) && ((B % 4294967296) <= r))) || ((((((((A % 4294967296) == (r + (B % 4294967296))) && (0 <= r)) && ((d + r) == (A % 4294967296))) && (((long long) (A % 4294967296) + 1) <= ((long long) 2 * (B % 4294967296)))) && (q == 1)) && ((r + (B % 4294967296)) <= 20)) && (p == 1))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((B % 4294967296) <= 20) && ((A % 4294967296) == r)) && ((A % 4294967296) <= 20)) && ((d + ((B / 4294967296) * 4294967296)) == B)) && (1 <= (B % 4294967296))) && (q == 0)) && (p == 1)) - ProcedureContractResult [Line: 11]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (\old(cond) != 0) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:17:14,835 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE