./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound100.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 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version de325976 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/ps5-ll_valuebound100.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 2436c69c19f049d89ef519f7bd9d4cf3f7b648737fca21472b0299c532d84f11 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-de32597-m [2024-09-18 16:34:23,466 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-18 16:34:23,539 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-18 16:34:23,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-18 16:34:23,543 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-18 16:34:23,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-18 16:34:23,567 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-18 16:34:23,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-18 16:34:23,569 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-18 16:34:23,570 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-18 16:34:23,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-18 16:34:23,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-18 16:34:23,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-18 16:34:23,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-18 16:34:23,571 INFO L153 SettingsManager]: * Use SBE=true [2024-09-18 16:34:23,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-18 16:34:23,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-18 16:34:23,573 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-18 16:34:23,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-18 16:34:23,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-18 16:34:23,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-18 16:34:23,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-18 16:34:23,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-18 16:34:23,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-18 16:34:23,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-18 16:34:23,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-18 16:34:23,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-18 16:34:23,578 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-18 16:34:23,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-18 16:34:23,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-18 16:34:23,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-18 16:34:23,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-18 16:34:23,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-18 16:34:23,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-18 16:34:23,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-18 16:34:23,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-18 16:34:23,579 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-18 16:34:23,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-18 16:34:23,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-18 16:34:23,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-18 16:34:23,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-18 16:34:23,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-18 16:34:23,580 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2436c69c19f049d89ef519f7bd9d4cf3f7b648737fca21472b0299c532d84f11 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-18 16:34:23,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-18 16:34:23,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-18 16:34:23,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-18 16:34:23,809 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-18 16:34:23,809 INFO L274 PluginConnector]: CDTParser initialized [2024-09-18 16:34:23,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound100.c [2024-09-18 16:34:25,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-18 16:34:25,169 INFO L384 CDTParser]: Found 1 translation units. [2024-09-18 16:34:25,170 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound100.c [2024-09-18 16:34:25,175 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/9a40cdc1e/ba2c5e437da24bf1a73b3bf1f01b51c1/FLAG90730b2f0 [2024-09-18 16:34:25,580 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/9a40cdc1e/ba2c5e437da24bf1a73b3bf1f01b51c1 [2024-09-18 16:34:25,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-18 16:34:25,583 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-18 16:34:25,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-18 16:34:25,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-18 16:34:25,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-18 16:34:25,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aacbfe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25, skipping insertion in model container [2024-09-18 16:34:25,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-18 16:34:25,763 WARN L248 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/ps5-ll_valuebound100.c[458,471] [2024-09-18 16:34:25,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-18 16:34:25,789 INFO L200 MainTranslator]: Completed pre-run [2024-09-18 16:34:25,799 WARN L248 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/ps5-ll_valuebound100.c[458,471] [2024-09-18 16:34:25,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-18 16:34:25,817 INFO L204 MainTranslator]: Completed translation [2024-09-18 16:34:25,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25 WrapperNode [2024-09-18 16:34:25,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-18 16:34:25,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-18 16:34:25,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-18 16:34:25,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-18 16:34:25,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,835 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-18 16:34:25,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-18 16:34:25,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-18 16:34:25,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-18 16:34:25,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-18 16:34:25,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,859 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]. [2024-09-18 16:34:25,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-18 16:34:25,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-18 16:34:25,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-18 16:34:25,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-18 16:34:25,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (1/1) ... [2024-09-18 16:34:25,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-18 16:34:25,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:34:25,899 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) [2024-09-18 16:34:25,900 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 [2024-09-18 16:34:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-18 16:34:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-18 16:34:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-18 16:34:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-18 16:34:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-18 16:34:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-18 16:34:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-18 16:34:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-18 16:34:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-18 16:34:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-18 16:34:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-18 16:34:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-18 16:34:25,976 INFO L242 CfgBuilder]: Building ICFG [2024-09-18 16:34:25,978 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-18 16:34:26,085 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-09-18 16:34:26,085 INFO L291 CfgBuilder]: Performing block encoding [2024-09-18 16:34:26,105 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-18 16:34:26,105 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-18 16:34:26,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 04:34:26 BoogieIcfgContainer [2024-09-18 16:34:26,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-18 16:34:26,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-18 16:34:26,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-18 16:34:26,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-18 16:34:26,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 04:34:25" (1/3) ... [2024-09-18 16:34:26,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542ed16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 04:34:26, skipping insertion in model container [2024-09-18 16:34:26,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:34:25" (2/3) ... [2024-09-18 16:34:26,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542ed16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 04:34:26, skipping insertion in model container [2024-09-18 16:34:26,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 04:34:26" (3/3) ... [2024-09-18 16:34:26,113 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound100.c [2024-09-18 16:34:26,127 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-18 16:34:26,127 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-18 16:34:26,168 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-18 16:34:26,173 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;@7f982dbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-18 16:34:26,173 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-18 16:34:26,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-18 16:34:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-18 16:34:26,182 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:34:26,182 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:34:26,183 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:34:26,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:26,187 INFO L85 PathProgramCache]: Analyzing trace with hash -620791457, now seen corresponding path program 1 times [2024-09-18 16:34:26,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:34:26,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735068121] [2024-09-18 16:34:26,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:34:26,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:34:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:34:26,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:34:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:34:26,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:34:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:34:26,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:34:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:34:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-18 16:34:26,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:34:26,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735068121] [2024-09-18 16:34:26,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735068121] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-18 16:34:26,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-18 16:34:26,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-18 16:34:26,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684724822] [2024-09-18 16:34:26,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-18 16:34:26,336 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-18 16:34:26,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:34:26,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-18 16:34:26,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-18 16:34:26,355 INFO L87 Difference]: Start difference. First operand has 27 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-18 16:34:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:34:26,376 INFO L93 Difference]: Finished difference Result 48 states and 66 transitions. [2024-09-18 16:34:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-18 16:34:26,378 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-09-18 16:34:26,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:34:26,384 INFO L225 Difference]: With dead ends: 48 [2024-09-18 16:34:26,384 INFO L226 Difference]: Without dead ends: 23 [2024-09-18 16:34:26,386 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-18 16:34:26,389 INFO L434 NwaCegarLoop]: 28 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, 28 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 [2024-09-18 16:34:26,389 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-18 16:34:26,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-18 16:34:26,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-18 16:34:26,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-18 16:34:26,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2024-09-18 16:34:26,416 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 21 [2024-09-18 16:34:26,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:34:26,417 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2024-09-18 16:34:26,418 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-18 16:34:26,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:26,421 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2024-09-18 16:34:26,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-18 16:34:26,423 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:34:26,423 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:34:26,423 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-18 16:34:26,423 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:34:26,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:26,424 INFO L85 PathProgramCache]: Analyzing trace with hash -959298087, now seen corresponding path program 1 times [2024-09-18 16:34:26,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:34:26,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865674170] [2024-09-18 16:34:26,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:34:26,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:34:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-18 16:34:26,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293000154] [2024-09-18 16:34:26,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:34:26,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:34:26,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:34:26,455 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) [2024-09-18 16:34:26,456 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-18 16:34:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:34:26,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-18 16:34:26,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:34:26,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-18 16:34:26,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-18 16:34:26,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:34:26,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865674170] [2024-09-18 16:34:26,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-18 16:34:26,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293000154] [2024-09-18 16:34:26,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293000154] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-18 16:34:26,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-18 16:34:26,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-18 16:34:26,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321546353] [2024-09-18 16:34:26,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-18 16:34:26,591 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-18 16:34:26,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:34:26,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-18 16:34:26,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-18 16:34:26,592 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-18 16:34:26,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:34:26,638 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2024-09-18 16:34:26,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-18 16:34:26,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2024-09-18 16:34:26,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:34:26,640 INFO L225 Difference]: With dead ends: 34 [2024-09-18 16:34:26,640 INFO L226 Difference]: Without dead ends: 30 [2024-09-18 16:34:26,640 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-18 16:34:26,641 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-18 16:34:26,641 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 77 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-18 16:34:26,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-09-18 16:34:26,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-09-18 16:34:26,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 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) [2024-09-18 16:34:26,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2024-09-18 16:34:26,648 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2024-09-18 16:34:26,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:34:26,648 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2024-09-18 16:34:26,648 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-18 16:34:26,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:26,649 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2024-09-18 16:34:26,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-18 16:34:26,649 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:34:26,649 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] [2024-09-18 16:34:26,662 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-18 16:34:26,853 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 [2024-09-18 16:34:26,854 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:34:26,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:26,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1544704875, now seen corresponding path program 1 times [2024-09-18 16:34:26,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:34:26,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768429140] [2024-09-18 16:34:26,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:34:26,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:34:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-18 16:34:26,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804399015] [2024-09-18 16:34:26,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:34:26,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:34:26,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:34:26,882 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) [2024-09-18 16:34:26,882 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-18 16:34:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:34:26,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-18 16:34:26,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:34:27,000 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-18 16:34:27,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:34:27,104 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-18 16:34:27,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:34:27,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768429140] [2024-09-18 16:34:27,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-18 16:34:27,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804399015] [2024-09-18 16:34:27,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804399015] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-18 16:34:27,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-18 16:34:27,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2024-09-18 16:34:27,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488284922] [2024-09-18 16:34:27,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-18 16:34:27,105 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-18 16:34:27,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:34:27,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-18 16:34:27,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-18 16:34:27,106 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-18 16:34:27,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:34:27,150 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2024-09-18 16:34:27,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-18 16:34:27,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2024-09-18 16:34:27,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:34:27,151 INFO L225 Difference]: With dead ends: 36 [2024-09-18 16:34:27,151 INFO L226 Difference]: Without dead ends: 32 [2024-09-18 16:34:27,152 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-18 16:34:27,152 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-18 16:34:27,153 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 73 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-18 16:34:27,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-18 16:34:27,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-09-18 16:34:27,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-18 16:34:27,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2024-09-18 16:34:27,168 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 28 [2024-09-18 16:34:27,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:34:27,168 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2024-09-18 16:34:27,168 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-18 16:34:27,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:27,169 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2024-09-18 16:34:27,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-18 16:34:27,169 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:34:27,169 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:34:27,181 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-18 16:34:27,370 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:34:27,370 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:34:27,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:27,371 INFO L85 PathProgramCache]: Analyzing trace with hash 21814286, now seen corresponding path program 1 times [2024-09-18 16:34:27,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:34:27,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860472654] [2024-09-18 16:34:27,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:34:27,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:34:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-18 16:34:27,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731483544] [2024-09-18 16:34:27,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:34:27,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:34:27,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:34:27,409 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) [2024-09-18 16:34:27,422 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-18 16:34:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:34:27,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-18 16:34:27,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:34:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-18 16:34:27,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:34:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-18 16:34:27,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:34:27,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860472654] [2024-09-18 16:34:27,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-18 16:34:27,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731483544] [2024-09-18 16:34:27,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731483544] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:34:27,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-18 16:34:27,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-09-18 16:34:27,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540389263] [2024-09-18 16:34:27,662 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-18 16:34:27,662 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-18 16:34:27,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:34:27,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-18 16:34:27,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-18 16:34:27,664 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 10 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-18 16:34:27,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:34:27,777 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-09-18 16:34:27,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-18 16:34:27,778 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 39 [2024-09-18 16:34:27,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:34:27,780 INFO L225 Difference]: With dead ends: 49 [2024-09-18 16:34:27,781 INFO L226 Difference]: Without dead ends: 41 [2024-09-18 16:34:27,781 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 67 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-09-18 16:34:27,782 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-18 16:34:27,782 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 135 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-18 16:34:27,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-09-18 16:34:27,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-09-18 16:34:27,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-18 16:34:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2024-09-18 16:34:27,796 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 39 [2024-09-18 16:34:27,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:34:27,796 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2024-09-18 16:34:27,797 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-18 16:34:27,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:27,799 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2024-09-18 16:34:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-18 16:34:27,801 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:34:27,801 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:34:27,814 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-18 16:34:28,005 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:34:28,006 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:34:28,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:28,006 INFO L85 PathProgramCache]: Analyzing trace with hash -244405920, now seen corresponding path program 2 times [2024-09-18 16:34:28,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:34:28,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628543033] [2024-09-18 16:34:28,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:34:28,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:34:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-18 16:34:28,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514517098] [2024-09-18 16:34:28,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-18 16:34:28,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:34:28,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:34:28,068 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) [2024-09-18 16:34:28,069 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-18 16:34:28,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-18 16:34:28,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-18 16:34:28,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-18 16:34:28,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:34:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-09-18 16:34:28,368 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:34:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-09-18 16:34:28,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:34:28,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628543033] [2024-09-18 16:34:28,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-18 16:34:28,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514517098] [2024-09-18 16:34:28,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514517098] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:34:28,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-18 16:34:28,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2024-09-18 16:34:28,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55422790] [2024-09-18 16:34:28,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-18 16:34:28,666 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-18 16:34:28,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:34:28,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-18 16:34:28,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-09-18 16:34:28,668 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 21 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 13 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 14 states have call predecessors, (16), 13 states have call successors, (16) [2024-09-18 16:34:29,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:34:29,130 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2024-09-18 16:34:29,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-18 16:34:29,131 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 13 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 14 states have call predecessors, (16), 13 states have call successors, (16) Word has length 60 [2024-09-18 16:34:29,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:34:29,132 INFO L225 Difference]: With dead ends: 66 [2024-09-18 16:34:29,132 INFO L226 Difference]: Without dead ends: 58 [2024-09-18 16:34:29,133 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=173, Invalid=819, Unknown=0, NotChecked=0, Total=992 [2024-09-18 16:34:29,134 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 19 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-18 16:34:29,134 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 387 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-18 16:34:29,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-09-18 16:34:29,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-09-18 16:34:29,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 16 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-18 16:34:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2024-09-18 16:34:29,162 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 60 [2024-09-18 16:34:29,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:34:29,162 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2024-09-18 16:34:29,163 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 13 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 14 states have call predecessors, (16), 13 states have call successors, (16) [2024-09-18 16:34:29,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2024-09-18 16:34:29,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-18 16:34:29,164 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:34:29,164 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:34:29,176 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-18 16:34:29,365 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:34:29,365 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:34:29,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:34:29,366 INFO L85 PathProgramCache]: Analyzing trace with hash -235169010, now seen corresponding path program 3 times [2024-09-18 16:34:29,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:34:29,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55558076] [2024-09-18 16:34:29,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:34:29,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:34:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-18 16:34:29,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068017238] [2024-09-18 16:34:29,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-18 16:34:29,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:34:29,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:34:29,459 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) [2024-09-18 16:34:29,460 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-18 16:34:29,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-18 16:34:29,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-18 16:34:29,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-09-18 16:34:29,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:34:29,868 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 27 proven. 160 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-09-18 16:34:29,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:34:38,221 WARN L854 $PredicateComparison]: unable to prove that (or (= (+ (* 7 c_main_~c~0) (* c_main_~c~0 c_main_~y~0)) (+ (* 7 c_main_~y~0) (* c_main_~y~0 c_main_~y~0))) (not (= (mod (+ (* 15 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0) (* 29 c_main_~y~0) (* 10 c_main_~y~0 c_main_~y~0 c_main_~y~0) (* 6 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0)) 30) 0))) is different from false [2024-09-18 16:34:50,273 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-18 16:35:02,288 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-18 16:35:10,311 WARN L876 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((v_main_~y~0_BEFORE_CALL_45 Int) (v_main_~c~0_BEFORE_CALL_32 Int)) (or (= (+ (* 7 v_main_~c~0_BEFORE_CALL_32) (* v_main_~y~0_BEFORE_CALL_45 v_main_~c~0_BEFORE_CALL_32)) (+ (* 7 v_main_~y~0_BEFORE_CALL_45) (* v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45))) (= (mod (+ (* 29 v_main_~y~0_BEFORE_CALL_45) (* v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 15) (* v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 10) (* v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 6)) 30) 0)))) is different from true [2024-09-18 16:35:22,328 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-18 16:35:41,063 WARN L293 SmtUtils]: Spent 10.71s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-18 16:35:49,077 WARN L876 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((v_main_~y~0_BEFORE_CALL_45 Int) (v_main_~c~0_BEFORE_CALL_32 Int)) (or (= (+ (* 7 v_main_~c~0_BEFORE_CALL_32) (* v_main_~y~0_BEFORE_CALL_45 v_main_~c~0_BEFORE_CALL_32)) (+ (* 7 v_main_~y~0_BEFORE_CALL_45) (* v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45))) (= (mod (+ (* 29 v_main_~y~0_BEFORE_CALL_45) (* v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 15) (* v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 10) (* v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 v_main_~y~0_BEFORE_CALL_45 6)) 30) 0))) (= c___VERIFIER_assert_~cond 0)) is different from true [2024-09-18 16:36:01,134 WARN L854 $PredicateComparison]: unable to prove that (or (= (+ (* 8 c_main_~y~0) (* c_main_~y~0 c_main_~y~0)) (+ (* c_main_~c~0 8) (* c_main_~c~0 c_main_~y~0))) (not (= (mod (+ (* 15 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0) (* 29 c_main_~y~0) (* 10 c_main_~y~0 c_main_~y~0 c_main_~y~0) (* 6 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0)) 30) 0))) is different from false [2024-09-18 16:36:17,219 WARN L854 $PredicateComparison]: unable to prove that (or (= (+ (* 9 c_main_~y~0) (* c_main_~y~0 c_main_~y~0)) (+ (* c_main_~c~0 c_main_~y~0) (* 9 c_main_~c~0))) (not (= (mod (+ (* 15 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0) (* 29 c_main_~y~0) (* 10 c_main_~y~0 c_main_~y~0 c_main_~y~0) (* 6 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0 c_main_~y~0)) 30) 0))) is different from false [2024-09-18 16:36:24,737 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 27 proven. 70 refuted. 24 times theorem prover too weak. 194 trivial. 66 not checked. [2024-09-18 16:36:24,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:36:24,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55558076] [2024-09-18 16:36:24,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-18 16:36:24,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068017238] [2024-09-18 16:36:24,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068017238] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:36:24,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-18 16:36:24,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 32 [2024-09-18 16:36:24,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281150164] [2024-09-18 16:36:24,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-18 16:36:24,738 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-18 16:36:24,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:36:24,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-18 16:36:24,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=585, Unknown=5, NotChecked=270, Total=992 [2024-09-18 16:36:24,739 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 32 states, 30 states have (on average 2.033333333333333) internal successors, (61), 30 states have internal predecessors, (61), 23 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2024-09-18 16:36:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:36:25,261 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2024-09-18 16:36:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-18 16:36:25,261 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 2.033333333333333) internal successors, (61), 30 states have internal predecessors, (61), 23 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) Word has length 95 [2024-09-18 16:36:25,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:36:25,263 INFO L225 Difference]: With dead ends: 61 [2024-09-18 16:36:25,263 INFO L226 Difference]: Without dead ends: 0 [2024-09-18 16:36:25,264 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 159 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=258, Invalid=1163, Unknown=5, NotChecked=380, Total=1806 [2024-09-18 16:36:25,265 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 3 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 255 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-18 16:36:25,266 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 581 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 449 Invalid, 0 Unknown, 255 Unchecked, 0.3s Time] [2024-09-18 16:36:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-18 16:36:25,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-18 16:36:25,267 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) [2024-09-18 16:36:25,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-18 16:36:25,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2024-09-18 16:36:25,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:36:25,267 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-18 16:36:25,269 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 2.033333333333333) internal successors, (61), 30 states have internal predecessors, (61), 23 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2024-09-18 16:36:25,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:36:25,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-18 16:36:25,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-18 16:36:25,271 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-18 16:36:25,284 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-18 16:36:25,471 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-18 16:36:25,474 INFO L408 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2024-09-18 16:36:25,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-18 16:36:25,954 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-18 16:36:25,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 04:36:25 BoogieIcfgContainer [2024-09-18 16:36:25,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-18 16:36:25,977 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-18 16:36:25,977 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-18 16:36:25,977 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-18 16:36:25,978 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 04:34:26" (3/4) ... [2024-09-18 16:36:25,979 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-18 16:36:26,025 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-18 16:36:26,026 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-18 16:36:26,026 INFO L158 Benchmark]: Toolchain (without parser) took 120442.92ms. Allocated memory was 134.2MB in the beginning and 230.7MB in the end (delta: 96.5MB). Free memory was 64.9MB in the beginning and 69.0MB in the end (delta: -4.1MB). Peak memory consumption was 93.3MB. Max. memory is 16.1GB. [2024-09-18 16:36:26,026 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-18 16:36:26,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.05ms. Allocated memory was 134.2MB in the beginning and 190.8MB in the end (delta: 56.6MB). Free memory was 64.7MB in the beginning and 158.6MB in the end (delta: -93.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-09-18 16:36:26,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.44ms. Allocated memory is still 190.8MB. Free memory was 158.6MB in the beginning and 157.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-18 16:36:26,027 INFO L158 Benchmark]: Boogie Preprocessor took 34.14ms. Allocated memory is still 190.8MB. Free memory was 157.6MB in the beginning and 156.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-18 16:36:26,027 INFO L158 Benchmark]: RCFGBuilder took 234.89ms. Allocated memory is still 190.8MB. Free memory was 156.5MB in the beginning and 142.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-18 16:36:26,028 INFO L158 Benchmark]: TraceAbstraction took 119869.24ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 141.9MB in the beginning and 71.1MB in the end (delta: 70.8MB). Peak memory consumption was 109.6MB. Max. memory is 16.1GB. [2024-09-18 16:36:26,028 INFO L158 Benchmark]: Witness Printer took 48.51ms. Allocated memory is still 230.7MB. Free memory was 71.1MB in the beginning and 69.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-18 16:36:26,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.05ms. Allocated memory was 134.2MB in the beginning and 190.8MB in the end (delta: 56.6MB). Free memory was 64.7MB in the beginning and 158.6MB in the end (delta: -93.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.44ms. Allocated memory is still 190.8MB. Free memory was 158.6MB in the beginning and 157.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.14ms. Allocated memory is still 190.8MB. Free memory was 157.6MB in the beginning and 156.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 234.89ms. Allocated memory is still 190.8MB. Free memory was 156.5MB in the beginning and 142.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 119869.24ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 141.9MB in the beginning and 71.1MB in the end (delta: 70.8MB). Peak memory consumption was 109.6MB. Max. memory is 16.1GB. * Witness Printer took 48.51ms. Allocated memory is still 230.7MB. Free memory was 71.1MB in the beginning and 69.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 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, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 119.3s, OverallIterations: 6, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 1281 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 255 IncrementalHoareTripleChecker+Unchecked, 1119 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 794 IncrementalHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 162 mSDtfsCounter, 794 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 501 GetRequests, 401 SyntacticMatches, 8 SemanticMatches, 92 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 21.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=5, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 116.2s InterpolantComputationTime, 507 NumberOfCodeBlocks, 507 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 476 ConstructedInterpolants, 3 QuantifiedInterpolants, 2273 SizeOfPredicates, 10 NumberOfNonLiveVariables, 632 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 660/1048 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 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((k <= 256) && ((((__int128) y * y) + ((__int128) y * 4)) == (((__int128) c * 4) + ((__int128) c * y)))) && ((c + ((__int128) c * y)) == (y + ((__int128) y * y)))) && ((y + ((__int128) 30 * x)) == (((((((__int128) y * y) * y) * y) * 15) + (6 * (((((__int128) y * y) * y) * y) * y))) + ((((__int128) y * y) * y) * 10)))) && ((c < k) || (((__int128) y * y) == ((__int128) k * y)))) - 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! [2024-09-18 16:36:26,060 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE