./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05d860f4c0b8d355d8344160864c48286246164c4c6e8e3a08816fe000adfcec --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 19:34:07,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:34:07,279 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:34:07,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:34:07,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:34:07,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:34:07,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:34:07,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:34:07,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:34:07,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:34:07,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:34:07,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:34:07,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:34:07,308 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:34:07,309 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:34:07,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:34:07,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:34:07,309 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:34:07,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:34:07,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:34:07,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:34:07,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:34:07,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:34:07,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:34:07,314 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:34:07,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:34:07,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:34:07,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:34:07,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:34:07,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:34:07,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:34:07,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:34:07,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:34:07,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:34:07,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:34:07,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:34:07,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:34:07,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:34:07,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:34:07,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:34:07,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:34:07,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:34:07,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05d860f4c0b8d355d8344160864c48286246164c4c6e8e3a08816fe000adfcec Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:34:07,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:34:07,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:34:07,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:34:07,597 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:34:07,597 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:34:07,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c [2024-09-12 19:34:08,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:34:09,012 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:34:09,012 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c [2024-09-12 19:34:09,021 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/d4c7c1897/de26033ba84846a0be5c07d6d30757fd/FLAG710545863 [2024-09-12 19:34:09,404 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/d4c7c1897/de26033ba84846a0be5c07d6d30757fd [2024-09-12 19:34:09,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:34:09,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:34:09,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:34:09,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:34:09,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:34:09,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bd69dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09, skipping insertion in model container [2024-09-12 19:34:09,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,427 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:34:09,530 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/ps2-ll_valuebound1.c[454,467] [2024-09-12 19:34:09,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:34:09,545 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:34:09,553 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/ps2-ll_valuebound1.c[454,467] [2024-09-12 19:34:09,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:34:09,572 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:34:09,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09 WrapperNode [2024-09-12 19:34:09,574 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:34:09,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:34:09,575 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:34:09,575 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:34:09,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,590 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:34:09,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:34:09,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:34:09,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:34:09,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:34:09,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,603 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,611 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 19:34:09,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,617 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:34:09,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:34:09,619 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:34:09,619 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:34:09,622 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (1/1) ... [2024-09-12 19:34:09,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:34:09,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:09,648 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 19:34:09,651 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 19:34:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:34:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:34:09,698 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:34:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:34:09,698 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:34:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:34:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:34:09,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:34:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:34:09,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:34:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:34:09,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:34:09,754 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:34:09,755 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:34:09,953 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-09-12 19:34:09,953 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:34:09,981 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:34:09,981 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:34:09,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:34:09 BoogieIcfgContainer [2024-09-12 19:34:09,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:34:09,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:34:09,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:34:09,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:34:09,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:34:09" (1/3) ... [2024-09-12 19:34:09,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ceb8d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:34:09, skipping insertion in model container [2024-09-12 19:34:09,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:34:09" (2/3) ... [2024-09-12 19:34:09,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ceb8d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:34:09, skipping insertion in model container [2024-09-12 19:34:09,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:34:09" (3/3) ... [2024-09-12 19:34:09,989 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound1.c [2024-09-12 19:34:10,004 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:34:10,005 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-09-12 19:34:10,060 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:34:10,065 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;@426ebd4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:34:10,065 INFO L337 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-09-12 19:34:10,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 59 states have internal predecessors, (64), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:34:10,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 19:34:10,076 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:10,076 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:10,077 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:10,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:10,081 INFO L85 PathProgramCache]: Analyzing trace with hash 112086656, now seen corresponding path program 1 times [2024-09-12 19:34:10,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:10,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007847942] [2024-09-12 19:34:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:10,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:10,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:10,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:10,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:10,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:10,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007847942] [2024-09-12 19:34:10,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007847942] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:10,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:34:10,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:34:10,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171860279] [2024-09-12 19:34:10,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:10,219 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:34:10,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:10,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:34:10,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:34:10,242 INFO L87 Difference]: Start difference. First operand has 69 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 59 states have internal predecessors, (64), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:34:10,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:10,275 INFO L93 Difference]: Finished difference Result 128 states and 141 transitions. [2024-09-12 19:34:10,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:34:10,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 19:34:10,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:10,283 INFO L225 Difference]: With dead ends: 128 [2024-09-12 19:34:10,283 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 19:34:10,286 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:34:10,290 INFO L434 NwaCegarLoop]: 66 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, 66 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 19:34:10,291 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:34:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 19:34:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-09-12 19:34:10,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 34 states have (on average 1.6470588235294117) internal successors, (56), 55 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:34:10,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2024-09-12 19:34:10,327 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 13 [2024-09-12 19:34:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:10,327 INFO L474 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2024-09-12 19:34:10,327 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:34:10,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2024-09-12 19:34:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 19:34:10,329 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:10,329 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:10,329 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:34:10,329 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:10,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash 954727235, now seen corresponding path program 1 times [2024-09-12 19:34:10,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:10,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440164048] [2024-09-12 19:34:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:10,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:34:10,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585457268] [2024-09-12 19:34:10,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:10,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:10,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:10,355 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 19:34:10,362 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 19:34:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:10,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:34:10,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:10,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:10,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:34:10,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:10,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440164048] [2024-09-12 19:34:10,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:34:10,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585457268] [2024-09-12 19:34:10,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585457268] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:10,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:34:10,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:34:10,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703662754] [2024-09-12 19:34:10,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:10,438 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:34:10,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:10,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:34:10,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:34:10,441 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:34:10,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:10,528 INFO L93 Difference]: Finished difference Result 97 states and 108 transitions. [2024-09-12 19:34:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:34:10,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-09-12 19:34:10,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:10,530 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:34:10,530 INFO L226 Difference]: Without dead ends: 93 [2024-09-12 19:34:10,531 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:34:10,531 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:10,532 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 72 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-09-12 19:34:10,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 80. [2024-09-12 19:34:10,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 50 states have (on average 1.62) internal successors, (81), 71 states have internal predecessors, (81), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:34:10,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2024-09-12 19:34:10,545 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 14 [2024-09-12 19:34:10,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:10,545 INFO L474 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2024-09-12 19:34:10,545 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:34:10,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:10,546 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2024-09-12 19:34:10,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 19:34:10,547 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:10,547 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:10,560 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 19:34:10,747 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:10,749 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:10,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:10,753 INFO L85 PathProgramCache]: Analyzing trace with hash -468226727, now seen corresponding path program 1 times [2024-09-12 19:34:10,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:10,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238109490] [2024-09-12 19:34:10,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:10,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:10,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:10,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:10,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:10,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:10,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238109490] [2024-09-12 19:34:10,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238109490] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:10,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:34:10,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:34:10,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400630708] [2024-09-12 19:34:10,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:10,837 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:34:10,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:10,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:34:10,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:34:10,838 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:34:10,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:10,923 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2024-09-12 19:34:10,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:34:10,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-09-12 19:34:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:10,925 INFO L225 Difference]: With dead ends: 99 [2024-09-12 19:34:10,926 INFO L226 Difference]: Without dead ends: 91 [2024-09-12 19:34:10,926 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:34:10,927 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 23 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:10,927 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 76 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:10,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-09-12 19:34:10,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2024-09-12 19:34:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 55 states have (on average 1.509090909090909) internal successors, (83), 76 states have internal predecessors, (83), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:34:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2024-09-12 19:34:10,940 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 15 [2024-09-12 19:34:10,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:10,941 INFO L474 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2024-09-12 19:34:10,941 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:34:10,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2024-09-12 19:34:10,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:34:10,941 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:10,943 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:10,943 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:34:10,944 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:10,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:10,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1111414983, now seen corresponding path program 1 times [2024-09-12 19:34:10,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:10,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634392944] [2024-09-12 19:34:10,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:10,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:11,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:11,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634392944] [2024-09-12 19:34:11,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634392944] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:11,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:34:11,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:34:11,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965616730] [2024-09-12 19:34:11,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:11,053 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:34:11,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:11,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:34:11,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:34:11,054 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:34:11,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:11,147 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2024-09-12 19:34:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:34:11,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-09-12 19:34:11,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:11,148 INFO L225 Difference]: With dead ends: 95 [2024-09-12 19:34:11,148 INFO L226 Difference]: Without dead ends: 91 [2024-09-12 19:34:11,148 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:34:11,149 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 40 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:11,150 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 74 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:11,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-09-12 19:34:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 86. [2024-09-12 19:34:11,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 77 states have internal predecessors, (81), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:34:11,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2024-09-12 19:34:11,169 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 18 [2024-09-12 19:34:11,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:11,170 INFO L474 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2024-09-12 19:34:11,170 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:34:11,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2024-09-12 19:34:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 19:34:11,171 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:11,171 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:11,171 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:34:11,171 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:11,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:11,171 INFO L85 PathProgramCache]: Analyzing trace with hash -187384453, now seen corresponding path program 1 times [2024-09-12 19:34:11,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:11,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444347756] [2024-09-12 19:34:11,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:11,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:34:11,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202248368] [2024-09-12 19:34:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:11,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:11,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:11,188 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 19:34:11,192 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 19:34:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:34:11,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:11,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:11,298 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:34:11,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:11,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444347756] [2024-09-12 19:34:11,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:34:11,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202248368] [2024-09-12 19:34:11,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202248368] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:11,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:34:11,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:34:11,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651524172] [2024-09-12 19:34:11,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:11,300 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:34:11,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:11,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:34:11,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:34:11,301 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:34:11,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:11,429 INFO L93 Difference]: Finished difference Result 95 states and 97 transitions. [2024-09-12 19:34:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:34:11,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-09-12 19:34:11,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:11,430 INFO L225 Difference]: With dead ends: 95 [2024-09-12 19:34:11,430 INFO L226 Difference]: Without dead ends: 84 [2024-09-12 19:34:11,430 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 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 19:34:11,431 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 18 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:11,431 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 145 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-09-12 19:34:11,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2024-09-12 19:34:11,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 72 states have internal predecessors, (75), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:34:11,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 85 transitions. [2024-09-12 19:34:11,441 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 85 transitions. Word has length 24 [2024-09-12 19:34:11,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:11,441 INFO L474 AbstractCegarLoop]: Abstraction has 82 states and 85 transitions. [2024-09-12 19:34:11,441 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:34:11,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:11,442 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 85 transitions. [2024-09-12 19:34:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:34:11,442 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:11,442 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:11,453 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 19:34:11,644 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 19:34:11,645 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:11,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:11,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1092108649, now seen corresponding path program 1 times [2024-09-12 19:34:11,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:11,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553412968] [2024-09-12 19:34:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:11,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:11,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:11,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553412968] [2024-09-12 19:34:11,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553412968] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:11,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:34:11,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:34:11,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290967923] [2024-09-12 19:34:11,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:11,734 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:34:11,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:11,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:34:11,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:34:11,735 INFO L87 Difference]: Start difference. First operand 82 states and 85 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:34:11,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:11,756 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2024-09-12 19:34:11,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:34:11,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-09-12 19:34:11,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:11,757 INFO L225 Difference]: With dead ends: 84 [2024-09-12 19:34:11,758 INFO L226 Difference]: Without dead ends: 82 [2024-09-12 19:34:11,758 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:34:11,759 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 1 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:11,760 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 115 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:34:11,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-09-12 19:34:11,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-09-12 19:34:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 72 states have internal predecessors, (73), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:34:11,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 83 transitions. [2024-09-12 19:34:11,776 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 83 transitions. Word has length 27 [2024-09-12 19:34:11,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:11,779 INFO L474 AbstractCegarLoop]: Abstraction has 82 states and 83 transitions. [2024-09-12 19:34:11,779 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:34:11,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:11,780 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 83 transitions. [2024-09-12 19:34:11,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 19:34:11,780 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:11,780 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:11,780 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 19:34:11,780 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:11,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:11,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1896021779, now seen corresponding path program 1 times [2024-09-12 19:34:11,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:11,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498002421] [2024-09-12 19:34:11,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:11,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:11,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:11,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498002421] [2024-09-12 19:34:11,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498002421] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:11,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:34:11,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:34:11,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976620435] [2024-09-12 19:34:11,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:11,872 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:34:11,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:11,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:34:11,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:34:11,873 INFO L87 Difference]: Start difference. First operand 82 states and 83 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:34:11,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:11,961 INFO L93 Difference]: Finished difference Result 85 states and 87 transitions. [2024-09-12 19:34:11,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:34:11,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-09-12 19:34:11,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:11,962 INFO L225 Difference]: With dead ends: 85 [2024-09-12 19:34:11,962 INFO L226 Difference]: Without dead ends: 84 [2024-09-12 19:34:11,962 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:34:11,962 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:11,963 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 95 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:11,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-09-12 19:34:11,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2024-09-12 19:34:11,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 73 states have internal predecessors, (74), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:34:11,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2024-09-12 19:34:11,971 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 31 [2024-09-12 19:34:11,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:11,971 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2024-09-12 19:34:11,971 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:34:11,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:11,971 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2024-09-12 19:34:11,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 19:34:11,974 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:11,974 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:11,974 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:34:11,974 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:11,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:11,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1352867083, now seen corresponding path program 1 times [2024-09-12 19:34:11,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:11,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927720553] [2024-09-12 19:34:11,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:11,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:12,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:12,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:12,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:12,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:12,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927720553] [2024-09-12 19:34:12,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927720553] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:12,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:34:12,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:34:12,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32941264] [2024-09-12 19:34:12,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:12,061 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:34:12,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:12,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:34:12,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:34:12,063 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:34:12,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:12,147 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2024-09-12 19:34:12,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:34:12,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-09-12 19:34:12,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:12,148 INFO L225 Difference]: With dead ends: 85 [2024-09-12 19:34:12,148 INFO L226 Difference]: Without dead ends: 84 [2024-09-12 19:34:12,148 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:34:12,149 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:12,149 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-09-12 19:34:12,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-09-12 19:34:12,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 74 states have internal predecessors, (75), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:34:12,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2024-09-12 19:34:12,156 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 32 [2024-09-12 19:34:12,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:12,156 INFO L474 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2024-09-12 19:34:12,156 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:34:12,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:12,157 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2024-09-12 19:34:12,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:34:12,157 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:12,157 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:12,157 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 19:34:12,158 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:12,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:12,158 INFO L85 PathProgramCache]: Analyzing trace with hash -709782323, now seen corresponding path program 1 times [2024-09-12 19:34:12,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:12,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146828315] [2024-09-12 19:34:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:12,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:34:12,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525214618] [2024-09-12 19:34:12,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:12,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:12,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:12,172 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 19:34:12,172 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 19:34:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:12,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:34:12,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:12,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:12,241 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:34:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:12,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:12,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146828315] [2024-09-12 19:34:12,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:34:12,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525214618] [2024-09-12 19:34:12,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525214618] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:34:12,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:34:12,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 19:34:12,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042650293] [2024-09-12 19:34:12,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:34:12,314 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:34:12,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:12,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:34:12,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:34:12,314 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:34:12,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:12,461 INFO L93 Difference]: Finished difference Result 152 states and 185 transitions. [2024-09-12 19:34:12,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:34:12,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 35 [2024-09-12 19:34:12,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:12,462 INFO L225 Difference]: With dead ends: 152 [2024-09-12 19:34:12,462 INFO L226 Difference]: Without dead ends: 148 [2024-09-12 19:34:12,463 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:34:12,463 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 95 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:12,463 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 152 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:12,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-09-12 19:34:12,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 118. [2024-09-12 19:34:12,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 88 states have (on average 1.4659090909090908) internal successors, (129), 106 states have internal predecessors, (129), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:34:12,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 143 transitions. [2024-09-12 19:34:12,478 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 143 transitions. Word has length 35 [2024-09-12 19:34:12,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:12,478 INFO L474 AbstractCegarLoop]: Abstraction has 118 states and 143 transitions. [2024-09-12 19:34:12,479 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:34:12,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:12,479 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 143 transitions. [2024-09-12 19:34:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 19:34:12,479 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:12,480 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:12,492 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 19:34:12,683 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-09-12 19:34:12,684 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:12,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash -528415473, now seen corresponding path program 1 times [2024-09-12 19:34:12,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:12,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451481099] [2024-09-12 19:34:12,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:12,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:12,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:12,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:12,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:12,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:12,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:12,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451481099] [2024-09-12 19:34:12,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451481099] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:34:12,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047446016] [2024-09-12 19:34:12,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:12,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:12,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:12,780 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 19:34:12,782 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 19:34:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:12,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:34:12,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:12,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:34:12,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:12,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047446016] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:34:12,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:34:12,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-09-12 19:34:12,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971216642] [2024-09-12 19:34:12,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:34:12,979 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:34:12,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:12,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:34:12,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:34:12,979 INFO L87 Difference]: Start difference. First operand 118 states and 143 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:34:13,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:13,105 INFO L93 Difference]: Finished difference Result 118 states and 143 transitions. [2024-09-12 19:34:13,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:34:13,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 36 [2024-09-12 19:34:13,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:13,107 INFO L225 Difference]: With dead ends: 118 [2024-09-12 19:34:13,107 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 19:34:13,107 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:34:13,107 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 48 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:13,108 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 133 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:13,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 19:34:13,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-09-12 19:34:13,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 103 states have internal predecessors, (122), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:34:13,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2024-09-12 19:34:13,136 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 36 [2024-09-12 19:34:13,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:13,136 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2024-09-12 19:34:13,136 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 10 states have internal predecessors, (67), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:34:13,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:13,136 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2024-09-12 19:34:13,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 19:34:13,137 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:13,137 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:13,149 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 19:34:13,341 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:13,342 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:13,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:13,342 INFO L85 PathProgramCache]: Analyzing trace with hash 798989583, now seen corresponding path program 1 times [2024-09-12 19:34:13,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:13,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328850324] [2024-09-12 19:34:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:13,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:13,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:13,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:13,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:13,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:13,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:13,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328850324] [2024-09-12 19:34:13,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328850324] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:34:13,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337429946] [2024-09-12 19:34:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:13,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:13,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:13,399 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 19:34:13,400 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 19:34:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:13,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:34:13,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:13,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:34:13,566 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:13,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337429946] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:34:13,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:34:13,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-09-12 19:34:13,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111814417] [2024-09-12 19:34:13,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:34:13,567 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:34:13,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:13,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:34:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:34:13,568 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:34:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:13,691 INFO L93 Difference]: Finished difference Result 128 states and 150 transitions. [2024-09-12 19:34:13,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:34:13,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2024-09-12 19:34:13,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:13,692 INFO L225 Difference]: With dead ends: 128 [2024-09-12 19:34:13,692 INFO L226 Difference]: Without dead ends: 121 [2024-09-12 19:34:13,692 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:34:13,693 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 88 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:13,693 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 88 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:13,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-09-12 19:34:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 110. [2024-09-12 19:34:13,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.25) internal successors, (110), 98 states have internal predecessors, (110), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:34:13,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2024-09-12 19:34:13,706 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 37 [2024-09-12 19:34:13,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:13,706 INFO L474 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2024-09-12 19:34:13,707 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:34:13,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:13,707 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2024-09-12 19:34:13,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:34:13,708 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:13,708 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:13,721 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:34:13,908 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 19:34:13,909 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:13,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:13,909 INFO L85 PathProgramCache]: Analyzing trace with hash -970154671, now seen corresponding path program 1 times [2024-09-12 19:34:13,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:13,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442787399] [2024-09-12 19:34:13,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:13,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:13,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:13,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:13,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:13,984 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:13,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:13,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442787399] [2024-09-12 19:34:13,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442787399] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:34:13,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540019111] [2024-09-12 19:34:13,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:13,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:13,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:13,988 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 19:34:13,989 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 19:34:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:14,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:34:14,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:14,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:34:14,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540019111] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:14,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:34:14,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-09-12 19:34:14,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854111318] [2024-09-12 19:34:14,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:14,121 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:34:14,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:14,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:34:14,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:34:14,122 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:34:14,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:14,179 INFO L93 Difference]: Finished difference Result 110 states and 124 transitions. [2024-09-12 19:34:14,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:34:14,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-09-12 19:34:14,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:14,181 INFO L225 Difference]: With dead ends: 110 [2024-09-12 19:34:14,181 INFO L226 Difference]: Without dead ends: 106 [2024-09-12 19:34:14,181 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:34:14,181 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 54 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:14,181 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 68 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:34:14,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-09-12 19:34:14,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-09-12 19:34:14,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 88 states have (on average 1.1590909090909092) internal successors, (102), 94 states have internal predecessors, (102), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:34:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 116 transitions. [2024-09-12 19:34:14,204 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 116 transitions. Word has length 39 [2024-09-12 19:34:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:14,204 INFO L474 AbstractCegarLoop]: Abstraction has 106 states and 116 transitions. [2024-09-12 19:34:14,204 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:34:14,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 116 transitions. [2024-09-12 19:34:14,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 19:34:14,206 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:14,206 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:14,218 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:34:14,407 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:34:14,407 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:14,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:14,408 INFO L85 PathProgramCache]: Analyzing trace with hash -595889531, now seen corresponding path program 1 times [2024-09-12 19:34:14,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:14,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915233253] [2024-09-12 19:34:14,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:14,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:34:14,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178620817] [2024-09-12 19:34:14,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:14,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:14,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:14,420 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 19:34:14,421 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 19:34:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:14,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:34:14,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:14,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:34:14,552 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:34:14,627 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:34:14,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915233253] [2024-09-12 19:34:14,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:34:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178620817] [2024-09-12 19:34:14,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178620817] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:34:14,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:34:14,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:34:14,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793216805] [2024-09-12 19:34:14,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:14,628 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:34:14,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:14,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:34:14,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:34:14,629 INFO L87 Difference]: Start difference. First operand 106 states and 116 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:34:14,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:14,719 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2024-09-12 19:34:14,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:34:14,719 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-09-12 19:34:14,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:14,720 INFO L225 Difference]: With dead ends: 106 [2024-09-12 19:34:14,720 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:34:14,720 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:34:14,721 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 27 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:14,721 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 86 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:14,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:34:14,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-09-12 19:34:14,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 79 states have (on average 1.1265822784810127) internal successors, (89), 83 states have internal predecessors, (89), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:34:14,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2024-09-12 19:34:14,733 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 102 transitions. Word has length 45 [2024-09-12 19:34:14,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:14,741 INFO L474 AbstractCegarLoop]: Abstraction has 95 states and 102 transitions. [2024-09-12 19:34:14,741 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:34:14,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:14,742 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 102 transitions. [2024-09-12 19:34:14,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 19:34:14,744 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:14,744 INFO L216 NwaCegarLoop]: trace histogram [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 19:34:14,757 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 19:34:14,944 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:14,945 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:14,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:14,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1040320481, now seen corresponding path program 1 times [2024-09-12 19:34:14,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:14,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482667978] [2024-09-12 19:34:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:14,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:14,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:14,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:14,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:14,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:34:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:14,994 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:34:14,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:14,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482667978] [2024-09-12 19:34:14,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482667978] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:34:14,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391607221] [2024-09-12 19:34:14,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:14,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:14,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:14,997 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 19:34:14,998 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 19:34:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:34:15,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:34:15,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:34:15,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391607221] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:15,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:34:15,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:34:15,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621421525] [2024-09-12 19:34:15,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:15,070 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:34:15,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:15,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:34:15,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:34:15,071 INFO L87 Difference]: Start difference. First operand 95 states and 102 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:34:15,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:15,105 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2024-09-12 19:34:15,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:34:15,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2024-09-12 19:34:15,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:15,107 INFO L225 Difference]: With dead ends: 95 [2024-09-12 19:34:15,107 INFO L226 Difference]: Without dead ends: 94 [2024-09-12 19:34:15,107 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 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 19:34:15,107 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:15,108 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 77 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:34:15,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-09-12 19:34:15,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-09-12 19:34:15,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 79 states have (on average 1.0886075949367089) internal successors, (86), 82 states have internal predecessors, (86), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:34:15,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2024-09-12 19:34:15,121 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 48 [2024-09-12 19:34:15,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:15,121 INFO L474 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2024-09-12 19:34:15,121 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:34:15,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:15,122 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2024-09-12 19:34:15,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:34:15,122 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:15,122 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:34:15,139 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 19:34:15,326 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:15,327 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:15,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:15,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2109803537, now seen corresponding path program 1 times [2024-09-12 19:34:15,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:15,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987055621] [2024-09-12 19:34:15,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:15,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:34:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,368 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:34:15,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:15,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987055621] [2024-09-12 19:34:15,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987055621] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:34:15,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092836128] [2024-09-12 19:34:15,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:15,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:15,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:15,371 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 19:34:15,372 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 19:34:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:34:15,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:34:15,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:34:15,490 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:34:15,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092836128] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:34:15,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:34:15,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:34:15,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90869487] [2024-09-12 19:34:15,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:34:15,491 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:34:15,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:15,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:34:15,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:34:15,492 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-12 19:34:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:15,543 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2024-09-12 19:34:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:34:15,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 49 [2024-09-12 19:34:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:15,544 INFO L225 Difference]: With dead ends: 107 [2024-09-12 19:34:15,545 INFO L226 Difference]: Without dead ends: 106 [2024-09-12 19:34:15,545 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:34:15,545 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:15,546 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 117 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:34:15,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-09-12 19:34:15,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-09-12 19:34:15,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 91 states have internal predecessors, (94), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:34:15,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 109 transitions. [2024-09-12 19:34:15,562 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 109 transitions. Word has length 49 [2024-09-12 19:34:15,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:15,563 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 109 transitions. [2024-09-12 19:34:15,563 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-12 19:34:15,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 109 transitions. [2024-09-12 19:34:15,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 19:34:15,564 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:15,564 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:15,577 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 19:34:15,768 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 19:34:15,769 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:15,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:15,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1033979723, now seen corresponding path program 1 times [2024-09-12 19:34:15,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:15,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026289935] [2024-09-12 19:34:15,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:15,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:34:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 19:34:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:34:15,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:15,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026289935] [2024-09-12 19:34:15,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026289935] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:34:15,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237343703] [2024-09-12 19:34:15,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:15,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:15,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:15,884 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 19:34:15,885 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 19:34:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:15,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:34:15,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:34:16,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:34:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:34:16,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237343703] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:34:16,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:34:16,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-09-12 19:34:16,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291629606] [2024-09-12 19:34:16,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:34:16,220 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 19:34:16,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:16,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 19:34:16,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:34:16,220 INFO L87 Difference]: Start difference. First operand 104 states and 109 transitions. Second operand has 20 states, 19 states have (on average 8.157894736842104) internal successors, (155), 20 states have internal predecessors, (155), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-09-12 19:34:16,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:16,431 INFO L93 Difference]: Finished difference Result 145 states and 158 transitions. [2024-09-12 19:34:16,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:34:16,432 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.157894736842104) internal successors, (155), 20 states have internal predecessors, (155), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 74 [2024-09-12 19:34:16,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:16,433 INFO L225 Difference]: With dead ends: 145 [2024-09-12 19:34:16,433 INFO L226 Difference]: Without dead ends: 144 [2024-09-12 19:34:16,434 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=248, Invalid=402, Unknown=0, NotChecked=0, Total=650 [2024-09-12 19:34:16,435 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:16,435 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 127 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-09-12 19:34:16,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2024-09-12 19:34:16,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 124 states have (on average 1.0887096774193548) internal successors, (135), 127 states have internal predecessors, (135), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:34:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 154 transitions. [2024-09-12 19:34:16,462 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 154 transitions. Word has length 74 [2024-09-12 19:34:16,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:16,463 INFO L474 AbstractCegarLoop]: Abstraction has 142 states and 154 transitions. [2024-09-12 19:34:16,463 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.157894736842104) internal successors, (155), 20 states have internal predecessors, (155), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-09-12 19:34:16,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:16,463 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 154 transitions. [2024-09-12 19:34:16,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 19:34:16,463 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:16,464 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:16,476 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 19:34:16,664 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:34:16,664 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:16,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:16,665 INFO L85 PathProgramCache]: Analyzing trace with hash -903750961, now seen corresponding path program 2 times [2024-09-12 19:34:16,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:16,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833609660] [2024-09-12 19:34:16,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:16,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:16,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:16,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:16,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:16,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:34:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:16,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 19:34:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:34:16,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:16,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833609660] [2024-09-12 19:34:16,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833609660] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:34:16,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139970217] [2024-09-12 19:34:16,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:34:16,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:16,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:16,794 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 19:34:16,795 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 19:34:16,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:34:16,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:34:16,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:34:16,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:17,005 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:34:17,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:34:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:34:17,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139970217] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:34:17,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:34:17,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-09-12 19:34:17,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123877175] [2024-09-12 19:34:17,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:34:17,171 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 19:34:17,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:17,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 19:34:17,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=297, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:34:17,172 INFO L87 Difference]: Start difference. First operand 142 states and 154 transitions. Second operand has 22 states, 21 states have (on average 7.857142857142857) internal successors, (165), 22 states have internal predecessors, (165), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-09-12 19:34:17,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:17,439 INFO L93 Difference]: Finished difference Result 151 states and 161 transitions. [2024-09-12 19:34:17,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:34:17,440 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.857142857142857) internal successors, (165), 22 states have internal predecessors, (165), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 79 [2024-09-12 19:34:17,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:17,441 INFO L225 Difference]: With dead ends: 151 [2024-09-12 19:34:17,441 INFO L226 Difference]: Without dead ends: 150 [2024-09-12 19:34:17,441 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=321, Invalid=549, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:34:17,442 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 58 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:17,442 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 207 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:34:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-09-12 19:34:17,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2024-09-12 19:34:17,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 129 states have (on average 1.069767441860465) internal successors, (138), 132 states have internal predecessors, (138), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:34:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2024-09-12 19:34:17,459 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 79 [2024-09-12 19:34:17,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:17,460 INFO L474 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2024-09-12 19:34:17,460 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.857142857142857) internal successors, (165), 22 states have internal predecessors, (165), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-09-12 19:34:17,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:17,460 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2024-09-12 19:34:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-09-12 19:34:17,461 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:17,461 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:17,476 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 19:34:17,661 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:34:17,662 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-09-12 19:34:17,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:17,662 INFO L85 PathProgramCache]: Analyzing trace with hash -52715581, now seen corresponding path program 2 times [2024-09-12 19:34:17,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:17,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211920968] [2024-09-12 19:34:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:17,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:17,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:34:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:17,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:34:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:17,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 19:34:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:17,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:34:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:17,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 19:34:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:17,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:34:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:34:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 77 proven. 37 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:34:17,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:17,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211920968] [2024-09-12 19:34:17,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211920968] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:34:17,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82828615] [2024-09-12 19:34:17,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:34:17,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:17,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:17,835 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 19:34:17,836 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 19:34:17,875 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:34:17,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:34:17,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:34:17,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:34:18,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:34:18,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82828615] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:34:18,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:34:18,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2024-09-12 19:34:18,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895439279] [2024-09-12 19:34:18,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:34:18,140 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:34:18,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:18,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:34:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:34:18,141 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:34:18,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:18,176 INFO L93 Difference]: Finished difference Result 151 states and 160 transitions. [2024-09-12 19:34:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:34:18,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 98 [2024-09-12 19:34:18,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:18,177 INFO L225 Difference]: With dead ends: 151 [2024-09-12 19:34:18,177 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:34:18,178 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:34:18,178 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:18,178 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:34:18,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:34:18,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:34:18,178 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 19:34:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:34:18,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2024-09-12 19:34:18,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:18,179 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:34:18,179 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:34:18,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:18,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:34:18,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:34:18,181 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 23 remaining) [2024-09-12 19:34:18,181 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2024-09-12 19:34:18,182 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2024-09-12 19:34:18,183 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2024-09-12 19:34:18,183 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2024-09-12 19:34:18,183 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2024-09-12 19:34:18,183 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2024-09-12 19:34:18,183 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2024-09-12 19:34:18,183 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2024-09-12 19:34:18,183 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2024-09-12 19:34:18,183 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2024-09-12 19:34:18,183 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2024-09-12 19:34:18,183 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 23 remaining) [2024-09-12 19:34:18,195 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 19:34:18,384 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:34:18,386 INFO L408 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:34:18,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:34:18,852 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:34:18,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:34:18 BoogieIcfgContainer [2024-09-12 19:34:18,862 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:34:18,863 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:34:18,863 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:34:18,863 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:34:18,863 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:34:09" (3/4) ... [2024-09-12 19:34:18,864 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:34:18,867 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:34:18,867 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-09-12 19:34:18,867 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:34:18,867 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:34:18,870 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-09-12 19:34:18,870 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 19:34:18,870 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:34:18,870 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:34:18,935 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:34:18,936 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:34:18,936 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:34:18,936 INFO L158 Benchmark]: Toolchain (without parser) took 9529.27ms. Allocated memory was 67.1MB in the beginning and 172.0MB in the end (delta: 104.9MB). Free memory was 44.6MB in the beginning and 86.1MB in the end (delta: -41.5MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2024-09-12 19:34:18,937 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:34:18,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.79ms. Allocated memory is still 67.1MB. Free memory was 44.3MB in the beginning and 32.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 19:34:18,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.09ms. Allocated memory is still 67.1MB. Free memory was 32.7MB in the beginning and 31.8MB in the end (delta: 957.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:34:18,937 INFO L158 Benchmark]: Boogie Preprocessor took 26.35ms. Allocated memory is still 67.1MB. Free memory was 31.8MB in the beginning and 30.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:34:18,937 INFO L158 Benchmark]: RCFGBuilder took 363.47ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 30.2MB in the beginning and 63.9MB in the end (delta: -33.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-09-12 19:34:18,938 INFO L158 Benchmark]: TraceAbstraction took 8878.82ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 62.9MB in the beginning and 91.3MB in the end (delta: -28.4MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2024-09-12 19:34:18,938 INFO L158 Benchmark]: Witness Printer took 73.22ms. Allocated memory is still 172.0MB. Free memory was 91.3MB in the beginning and 86.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 19:34:18,939 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.79ms. Allocated memory is still 67.1MB. Free memory was 44.3MB in the beginning and 32.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.09ms. Allocated memory is still 67.1MB. Free memory was 32.7MB in the beginning and 31.8MB in the end (delta: 957.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.35ms. Allocated memory is still 67.1MB. Free memory was 31.8MB in the beginning and 30.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.47ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 30.2MB in the beginning and 63.9MB in the end (delta: -33.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8878.82ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 62.9MB in the beginning and 91.3MB in the end (delta: -28.4MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Witness Printer took 73.22ms. Allocated memory is still 172.0MB. Free memory was 91.3MB in the beginning and 86.1MB 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: 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, 69 locations, 23 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 18, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 504 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 495 mSDsluCounter, 1969 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1271 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1562 IncrementalHoareTripleChecker+Invalid, 1638 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 698 mSDtfsCounter, 1562 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1096 GetRequests, 968 SyntacticMatches, 3 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=17, InterpolantAutomatonStates: 106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 75 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1292 NumberOfCodeBlocks, 1292 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1496 ConstructedInterpolants, 0 QuantifiedInterpolants, 6235 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1172 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 33 InterpolantComputations, 12 PerfectInterpolantSequences, 364/853 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 23 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((x == 0) && (0 <= k)) && (k <= 1)) && (c == 0)) && (y == 0)) || (((((0 <= k) && (k <= 1)) && (y == 1)) && (x == 1)) && (c == 1))) - ProcedureContractResult [Line: 6]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (\old(cond) != 0) - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:34:18,963 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE