./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.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 27b49876 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/recursive-simple/fibo_2calls_8-1.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 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 --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-27b4987-m [2024-09-21 12:28:29,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:28:29,705 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-21 12:28:29,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:28:29,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:28:29,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:28:29,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:28:29,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:28:29,730 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:28:29,730 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:28:29,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:28:29,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:28:29,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:28:29,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:28:29,732 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:28:29,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:28:29,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:28:29,733 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:28:29,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 12:28:29,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:28:29,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:28:29,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:28:29,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:28:29,735 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:28:29,735 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:28:29,735 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:28:29,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:28:29,736 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:28:29,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:28:29,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:28:29,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:28:29,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:28:29,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:28:29,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:28:29,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:28:29,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:28:29,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 12:28:29,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 12:28:29,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:28:29,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:28:29,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:28:29,740 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:28:29,740 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-21 12:28:29,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:28:29,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:28:29,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:28:29,999 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:28:29,999 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:28:30,000 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-21 12:28:31,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:28:31,764 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:28:31,765 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-21 12:28:31,773 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/d373d2061/a0d4d45c5bc442e2bdbc370174f4a0be/FLAGef9bde1cc [2024-09-21 12:28:31,792 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/d373d2061/a0d4d45c5bc442e2bdbc370174f4a0be [2024-09-21 12:28:31,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:28:31,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-21 12:28:31,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:28:31,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:28:31,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:28:31,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:28:31" (1/1) ... [2024-09-21 12:28:31,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7148ac86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:31, skipping insertion in model container [2024-09-21 12:28:31,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:28:31" (1/1) ... [2024-09-21 12:28:31,826 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:28:31,975 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/recursive-simple/fibo_2calls_8-1.c[947,960] [2024-09-21 12:28:31,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:28:31,993 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:28:32,007 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/recursive-simple/fibo_2calls_8-1.c[947,960] [2024-09-21 12:28:32,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:28:32,023 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:28:32,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32 WrapperNode [2024-09-21 12:28:32,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:28:32,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-21 12:28:32,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-21 12:28:32,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-21 12:28:32,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,044 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-21 12:28:32,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-21 12:28:32,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:28:32,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:28:32,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:28:32,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,059 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,071 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]. [2024-09-21 12:28:32,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:28:32,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:28:32,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:28:32,085 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:28:32,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (1/1) ... [2024-09-21 12:28:32,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:28:32,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:32,128 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) [2024-09-21 12:28:32,132 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 [2024-09-21 12:28:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:28:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:28:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:28:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-21 12:28:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-21 12:28:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-21 12:28:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-21 12:28:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-21 12:28:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:28:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:28:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:28:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:28:32,244 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:28:32,246 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:28:32,437 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-09-21 12:28:32,441 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:28:32,473 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:28:32,473 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:28:32,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:28:32 BoogieIcfgContainer [2024-09-21 12:28:32,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:28:32,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-21 12:28:32,475 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-21 12:28:32,478 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-21 12:28:32,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:28:31" (1/3) ... [2024-09-21 12:28:32,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42039a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:28:32, skipping insertion in model container [2024-09-21 12:28:32,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32" (2/3) ... [2024-09-21 12:28:32,480 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42039a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:28:32, skipping insertion in model container [2024-09-21 12:28:32,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:28:32" (3/3) ... [2024-09-21 12:28:32,481 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-09-21 12:28:32,497 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-21 12:28:32,497 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-21 12:28:32,553 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-21 12:28:32,559 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;@21903918, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-21 12:28:32,559 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-21 12:28:32,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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) [2024-09-21 12:28:32,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-21 12:28:32,570 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:32,570 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:32,571 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:32,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:32,575 INFO L85 PathProgramCache]: Analyzing trace with hash -685851838, now seen corresponding path program 1 times [2024-09-21 12:28:32,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:32,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520647146] [2024-09-21 12:28:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:32,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:32,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:32,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-21 12:28:32,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:32,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520647146] [2024-09-21 12:28:32,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520647146] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-21 12:28:32,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-21 12:28:32,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-21 12:28:32,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931512632] [2024-09-21 12:28:32,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-21 12:28:32,892 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-21 12:28:32,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:32,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-21 12:28:32,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-21 12:28:32,921 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-21 12:28:33,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:33,018 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2024-09-21 12:28:33,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-21 12:28:33,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-09-21 12:28:33,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:33,029 INFO L225 Difference]: With dead ends: 44 [2024-09-21 12:28:33,030 INFO L226 Difference]: Without dead ends: 32 [2024-09-21 12:28:33,032 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-21 12:28:33,036 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 10 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:33,039 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 103 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-21 12:28:33,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-21 12:28:33,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-09-21 12:28:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-21 12:28:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-09-21 12:28:33,080 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2024-09-21 12:28:33,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:33,080 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-09-21 12:28:33,081 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-21 12:28:33,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-09-21 12:28:33,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-21 12:28:33,083 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:33,083 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:33,083 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-21 12:28:33,083 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:33,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:33,084 INFO L85 PathProgramCache]: Analyzing trace with hash 924954813, now seen corresponding path program 1 times [2024-09-21 12:28:33,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:33,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364660518] [2024-09-21 12:28:33,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:33,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:33,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:33,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-21 12:28:33,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:33,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364660518] [2024-09-21 12:28:33,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364660518] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-21 12:28:33,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-21 12:28:33,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-21 12:28:33,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694352142] [2024-09-21 12:28:33,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-21 12:28:33,197 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-21 12:28:33,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:33,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-21 12:28:33,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-21 12:28:33,199 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-21 12:28:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:33,282 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2024-09-21 12:28:33,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-21 12:28:33,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-09-21 12:28:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:33,284 INFO L225 Difference]: With dead ends: 36 [2024-09-21 12:28:33,284 INFO L226 Difference]: Without dead ends: 32 [2024-09-21 12:28:33,285 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-21 12:28:33,286 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:33,288 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 88 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-21 12:28:33,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-21 12:28:33,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-09-21 12:28:33,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-21 12:28:33,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-09-21 12:28:33,302 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2024-09-21 12:28:33,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:33,302 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-09-21 12:28:33,302 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-21 12:28:33,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:33,303 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-09-21 12:28:33,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-21 12:28:33,306 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:33,306 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] [2024-09-21 12:28:33,306 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-21 12:28:33,307 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:33,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1782416332, now seen corresponding path program 1 times [2024-09-21 12:28:33,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:33,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568037118] [2024-09-21 12:28:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:33,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:33,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:33,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:33,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:33,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-21 12:28:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-21 12:28:33,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:33,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568037118] [2024-09-21 12:28:33,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568037118] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:33,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465110562] [2024-09-21 12:28:33,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:33,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:33,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:33,532 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) [2024-09-21 12:28:33,538 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-21 12:28:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:33,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-21 12:28:33,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-21 12:28:33,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:33,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-21 12:28:33,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465110562] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:33,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:33,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-09-21 12:28:33,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109278362] [2024-09-21 12:28:33,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:33,910 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-21 12:28:33,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:33,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-21 12:28:33,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-21 12:28:33,911 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-21 12:28:34,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:34,076 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2024-09-21 12:28:34,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-21 12:28:34,077 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) Word has length 26 [2024-09-21 12:28:34,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:34,078 INFO L225 Difference]: With dead ends: 58 [2024-09-21 12:28:34,078 INFO L226 Difference]: Without dead ends: 34 [2024-09-21 12:28:34,079 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-09-21 12:28:34,082 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 25 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:34,084 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 160 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-21 12:28:34,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-09-21 12:28:34,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-09-21 12:28:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-21 12:28:34,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-09-21 12:28:34,097 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2024-09-21 12:28:34,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:34,098 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-09-21 12:28:34,098 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-21 12:28:34,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:34,100 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-09-21 12:28:34,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-21 12:28:34,102 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:34,102 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] [2024-09-21 12:28:34,119 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-21 12:28:34,302 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:34,303 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:34,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:34,304 INFO L85 PathProgramCache]: Analyzing trace with hash -836643613, now seen corresponding path program 1 times [2024-09-21 12:28:34,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:34,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098609962] [2024-09-21 12:28:34,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:34,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:34,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:34,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:34,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:34,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:34,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-21 12:28:34,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:34,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098609962] [2024-09-21 12:28:34,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098609962] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:34,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345999556] [2024-09-21 12:28:34,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:34,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:34,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:34,502 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) [2024-09-21 12:28:34,503 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-21 12:28:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:34,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-21 12:28:34,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-21 12:28:34,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-21 12:28:34,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345999556] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:34,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:34,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-09-21 12:28:34,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171311475] [2024-09-21 12:28:34,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:34,814 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-21 12:28:34,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:34,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-21 12:28:34,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-09-21 12:28:34,816 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-21 12:28:35,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:35,026 INFO L93 Difference]: Finished difference Result 56 states and 77 transitions. [2024-09-21 12:28:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-21 12:28:35,027 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Word has length 27 [2024-09-21 12:28:35,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:35,029 INFO L225 Difference]: With dead ends: 56 [2024-09-21 12:28:35,029 INFO L226 Difference]: Without dead ends: 52 [2024-09-21 12:28:35,029 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-09-21 12:28:35,030 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:35,030 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 182 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-21 12:28:35,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-09-21 12:28:35,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2024-09-21 12:28:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 33 states have internal predecessors, (39), 11 states have call successors, (11), 6 states have call predecessors, (11), 7 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2024-09-21 12:28:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2024-09-21 12:28:35,039 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 27 [2024-09-21 12:28:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:35,039 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2024-09-21 12:28:35,040 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-21 12:28:35,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:35,040 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2024-09-21 12:28:35,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-21 12:28:35,041 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:35,041 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:35,054 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-21 12:28:35,245 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:35,246 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:35,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:35,246 INFO L85 PathProgramCache]: Analyzing trace with hash -925704228, now seen corresponding path program 1 times [2024-09-21 12:28:35,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:35,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877142978] [2024-09-21 12:28:35,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:35,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:35,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:35,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:35,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:35,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:35,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-21 12:28:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:35,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-21 12:28:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:35,362 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-21 12:28:35,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:35,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877142978] [2024-09-21 12:28:35,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877142978] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:35,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112661803] [2024-09-21 12:28:35,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:35,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:35,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:35,364 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) [2024-09-21 12:28:35,365 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-21 12:28:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:35,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-21 12:28:35,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:35,482 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-21 12:28:35,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-21 12:28:35,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112661803] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:35,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:35,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2024-09-21 12:28:35,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379347971] [2024-09-21 12:28:35,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:35,799 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-21 12:28:35,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:35,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-21 12:28:35,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-21 12:28:35,801 INFO L87 Difference]: Start difference. First operand 50 states and 68 transitions. Second operand has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-21 12:28:36,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:36,030 INFO L93 Difference]: Finished difference Result 112 states and 180 transitions. [2024-09-21 12:28:36,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-21 12:28:36,031 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) Word has length 39 [2024-09-21 12:28:36,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:36,032 INFO L225 Difference]: With dead ends: 112 [2024-09-21 12:28:36,032 INFO L226 Difference]: Without dead ends: 68 [2024-09-21 12:28:36,033 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-09-21 12:28:36,034 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 38 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:36,035 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 200 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-21 12:28:36,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-09-21 12:28:36,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2024-09-21 12:28:36,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 44 states have internal predecessors, (51), 14 states have call successors, (14), 7 states have call predecessors, (14), 10 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) [2024-09-21 12:28:36,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 95 transitions. [2024-09-21 12:28:36,049 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 95 transitions. Word has length 39 [2024-09-21 12:28:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:36,050 INFO L474 AbstractCegarLoop]: Abstraction has 66 states and 95 transitions. [2024-09-21 12:28:36,050 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-21 12:28:36,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2024-09-21 12:28:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-21 12:28:36,052 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:36,052 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:36,071 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-21 12:28:36,253 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:36,253 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:36,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:36,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1261961157, now seen corresponding path program 1 times [2024-09-21 12:28:36,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:36,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961672849] [2024-09-21 12:28:36,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:36,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:36,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:36,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:36,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:36,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:36,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:36,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-21 12:28:36,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:36,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961672849] [2024-09-21 12:28:36,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961672849] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:36,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976766878] [2024-09-21 12:28:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:36,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:36,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:36,444 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) [2024-09-21 12:28:36,445 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-21 12:28:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:36,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-21 12:28:36,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:36,568 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-21 12:28:36,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:36,938 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-21 12:28:36,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976766878] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:36,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:36,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2024-09-21 12:28:36,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315769033] [2024-09-21 12:28:36,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:36,940 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-21 12:28:36,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:36,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-21 12:28:36,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-09-21 12:28:36,944 INFO L87 Difference]: Start difference. First operand 66 states and 95 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-21 12:28:37,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:37,319 INFO L93 Difference]: Finished difference Result 182 states and 328 transitions. [2024-09-21 12:28:37,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-21 12:28:37,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) Word has length 40 [2024-09-21 12:28:37,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:37,322 INFO L225 Difference]: With dead ends: 182 [2024-09-21 12:28:37,325 INFO L226 Difference]: Without dead ends: 122 [2024-09-21 12:28:37,327 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-09-21 12:28:37,329 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:37,329 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 343 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-21 12:28:37,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-09-21 12:28:37,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 103. [2024-09-21 12:28:37,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.21875) internal successors, (78), 67 states have internal predecessors, (78), 23 states have call successors, (23), 9 states have call predecessors, (23), 15 states have return successors, (64), 26 states have call predecessors, (64), 22 states have call successors, (64) [2024-09-21 12:28:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 165 transitions. [2024-09-21 12:28:37,362 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 165 transitions. Word has length 40 [2024-09-21 12:28:37,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:37,363 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 165 transitions. [2024-09-21 12:28:37,363 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-21 12:28:37,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:37,364 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 165 transitions. [2024-09-21 12:28:37,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-21 12:28:37,366 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:37,367 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:37,386 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-21 12:28:37,574 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:37,575 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:37,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1624375296, now seen corresponding path program 1 times [2024-09-21 12:28:37,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:37,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996763149] [2024-09-21 12:28:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:37,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:37,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:37,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:37,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:37,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:37,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:37,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:37,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:37,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-21 12:28:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-21 12:28:37,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:37,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996763149] [2024-09-21 12:28:37,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996763149] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:37,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929952893] [2024-09-21 12:28:37,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:37,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:37,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:37,749 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) [2024-09-21 12:28:37,750 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-21 12:28:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:37,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-21 12:28:37,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-21 12:28:37,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:38,304 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-21 12:28:38,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929952893] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:38,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:38,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2024-09-21 12:28:38,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834599530] [2024-09-21 12:28:38,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:38,305 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-21 12:28:38,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:38,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-21 12:28:38,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-21 12:28:38,307 INFO L87 Difference]: Start difference. First operand 103 states and 165 transitions. Second operand has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2024-09-21 12:28:38,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:38,602 INFO L93 Difference]: Finished difference Result 252 states and 489 transitions. [2024-09-21 12:28:38,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-21 12:28:38,603 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) Word has length 54 [2024-09-21 12:28:38,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:38,606 INFO L225 Difference]: With dead ends: 252 [2024-09-21 12:28:38,606 INFO L226 Difference]: Without dead ends: 155 [2024-09-21 12:28:38,607 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 118 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2024-09-21 12:28:38,608 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 41 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:38,608 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 256 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-21 12:28:38,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-21 12:28:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 112. [2024-09-21 12:28:38,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 72 states have internal predecessors, (87), 26 states have call successors, (26), 11 states have call predecessors, (26), 14 states have return successors, (67), 28 states have call predecessors, (67), 25 states have call successors, (67) [2024-09-21 12:28:38,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 180 transitions. [2024-09-21 12:28:38,632 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 180 transitions. Word has length 54 [2024-09-21 12:28:38,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:38,633 INFO L474 AbstractCegarLoop]: Abstraction has 112 states and 180 transitions. [2024-09-21 12:28:38,633 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2024-09-21 12:28:38,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:38,634 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 180 transitions. [2024-09-21 12:28:38,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-21 12:28:38,637 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:38,637 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:38,655 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-21 12:28:38,841 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-21 12:28:38,842 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:38,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:38,842 INFO L85 PathProgramCache]: Analyzing trace with hash -805611050, now seen corresponding path program 1 times [2024-09-21 12:28:38,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:38,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634735323] [2024-09-21 12:28:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:38,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:38,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:38,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-21 12:28:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 44 proven. 79 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-21 12:28:39,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:39,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634735323] [2024-09-21 12:28:39,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634735323] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:39,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075503484] [2024-09-21 12:28:39,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:39,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:39,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:39,170 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) [2024-09-21 12:28:39,171 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-21 12:28:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:39,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-21 12:28:39,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:39,361 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 119 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-09-21 12:28:39,362 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:40,140 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 129 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-09-21 12:28:40,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075503484] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:40,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:40,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2024-09-21 12:28:40,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522868323] [2024-09-21 12:28:40,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:40,141 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-21 12:28:40,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:40,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-21 12:28:40,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-09-21 12:28:40,143 INFO L87 Difference]: Start difference. First operand 112 states and 180 transitions. Second operand has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) [2024-09-21 12:28:40,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:40,652 INFO L93 Difference]: Finished difference Result 256 states and 494 transitions. [2024-09-21 12:28:40,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-21 12:28:40,653 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) Word has length 110 [2024-09-21 12:28:40,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:40,655 INFO L225 Difference]: With dead ends: 256 [2024-09-21 12:28:40,655 INFO L226 Difference]: Without dead ends: 108 [2024-09-21 12:28:40,657 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 235 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2024-09-21 12:28:40,658 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 59 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:40,658 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 365 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-21 12:28:40,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-09-21 12:28:40,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 91. [2024-09-21 12:28:40,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 60 states have internal predecessors, (70), 18 states have call successors, (18), 10 states have call predecessors, (18), 13 states have return successors, (39), 20 states have call predecessors, (39), 17 states have call successors, (39) [2024-09-21 12:28:40,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2024-09-21 12:28:40,686 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 110 [2024-09-21 12:28:40,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:40,686 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2024-09-21 12:28:40,687 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) [2024-09-21 12:28:40,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:40,687 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2024-09-21 12:28:40,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-21 12:28:40,689 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:40,689 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:40,705 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-21 12:28:40,890 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:40,890 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:40,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:40,891 INFO L85 PathProgramCache]: Analyzing trace with hash 222670340, now seen corresponding path program 1 times [2024-09-21 12:28:40,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:40,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542397155] [2024-09-21 12:28:40,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:40,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-21 12:28:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-21 12:28:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 71 proven. 160 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2024-09-21 12:28:41,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:41,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542397155] [2024-09-21 12:28:41,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542397155] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:41,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259409585] [2024-09-21 12:28:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:41,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:41,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:41,333 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) [2024-09-21 12:28:41,340 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-21 12:28:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:41,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-21 12:28:41,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 34 proven. 242 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2024-09-21 12:28:41,578 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:42,628 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 34 proven. 258 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-09-21 12:28:42,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259409585] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:42,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:42,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 15] total 26 [2024-09-21 12:28:42,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400583047] [2024-09-21 12:28:42,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:42,630 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-21 12:28:42,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:42,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-21 12:28:42,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-09-21 12:28:42,632 INFO L87 Difference]: Start difference. First operand 91 states and 127 transitions. Second operand has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) [2024-09-21 12:28:43,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:43,157 INFO L93 Difference]: Finished difference Result 229 states and 395 transitions. [2024-09-21 12:28:43,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-21 12:28:43,158 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) Word has length 164 [2024-09-21 12:28:43,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:43,160 INFO L225 Difference]: With dead ends: 229 [2024-09-21 12:28:43,160 INFO L226 Difference]: Without dead ends: 131 [2024-09-21 12:28:43,162 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 357 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2024-09-21 12:28:43,166 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 85 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:43,166 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 437 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-21 12:28:43,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-21 12:28:43,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 111. [2024-09-21 12:28:43,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 74 states have internal predecessors, (89), 22 states have call successors, (22), 13 states have call predecessors, (22), 15 states have return successors, (52), 23 states have call predecessors, (52), 21 states have call successors, (52) [2024-09-21 12:28:43,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2024-09-21 12:28:43,187 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 163 transitions. Word has length 164 [2024-09-21 12:28:43,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:43,187 INFO L474 AbstractCegarLoop]: Abstraction has 111 states and 163 transitions. [2024-09-21 12:28:43,188 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) [2024-09-21 12:28:43,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:43,188 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 163 transitions. [2024-09-21 12:28:43,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-09-21 12:28:43,190 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:43,190 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:43,209 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-21 12:28:43,391 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:43,392 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:43,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash 501832710, now seen corresponding path program 2 times [2024-09-21 12:28:43,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:43,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222833916] [2024-09-21 12:28:43,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:43,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-21 12:28:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:43,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-21 12:28:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:44,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 167 proven. 260 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-09-21 12:28:44,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:44,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222833916] [2024-09-21 12:28:44,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222833916] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:44,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299024013] [2024-09-21 12:28:44,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-21 12:28:44,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:44,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:44,037 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) [2024-09-21 12:28:44,039 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-21 12:28:44,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-21 12:28:44,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-21 12:28:44,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-21 12:28:44,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 418 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-09-21 12:28:44,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 442 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2024-09-21 12:28:45,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299024013] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:45,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:45,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 27 [2024-09-21 12:28:45,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411697841] [2024-09-21 12:28:45,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:45,754 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-21 12:28:45,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:45,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-21 12:28:45,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-09-21 12:28:45,755 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. Second operand has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) [2024-09-21 12:28:46,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:46,282 INFO L93 Difference]: Finished difference Result 254 states and 432 transitions. [2024-09-21 12:28:46,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-21 12:28:46,282 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) Word has length 231 [2024-09-21 12:28:46,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:46,284 INFO L225 Difference]: With dead ends: 254 [2024-09-21 12:28:46,284 INFO L226 Difference]: Without dead ends: 156 [2024-09-21 12:28:46,286 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 510 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1553, Unknown=0, NotChecked=0, Total=1892 [2024-09-21 12:28:46,286 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 64 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:46,286 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 336 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-21 12:28:46,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-21 12:28:46,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 143. [2024-09-21 12:28:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 97 states have (on average 1.2474226804123711) internal successors, (121), 96 states have internal predecessors, (121), 28 states have call successors, (28), 19 states have call predecessors, (28), 17 states have return successors, (72), 27 states have call predecessors, (72), 27 states have call successors, (72) [2024-09-21 12:28:46,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 221 transitions. [2024-09-21 12:28:46,306 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 221 transitions. Word has length 231 [2024-09-21 12:28:46,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:46,306 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 221 transitions. [2024-09-21 12:28:46,306 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) [2024-09-21 12:28:46,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:46,307 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 221 transitions. [2024-09-21 12:28:46,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-09-21 12:28:46,316 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:46,316 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 37, 37, 31, 30, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 12, 11, 10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:46,337 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-21 12:28:46,520 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:46,521 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:46,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:46,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1090979059, now seen corresponding path program 3 times [2024-09-21 12:28:46,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:46,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358728170] [2024-09-21 12:28:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:46,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:46,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:46,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-21 12:28:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-21 12:28:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-21 12:28:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-21 12:28:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,731 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-21 12:28:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:47,752 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 302 proven. 934 refuted. 0 times theorem prover too weak. 6820 trivial. 0 not checked. [2024-09-21 12:28:47,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:47,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358728170] [2024-09-21 12:28:47,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358728170] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:47,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024283131] [2024-09-21 12:28:47,752 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-21 12:28:47,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:47,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:47,754 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) [2024-09-21 12:28:47,755 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-21 12:28:47,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-21 12:28:47,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-21 12:28:47,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-21 12:28:47,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:47,981 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 2122 proven. 34 refuted. 0 times theorem prover too weak. 5900 trivial. 0 not checked. [2024-09-21 12:28:47,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:49,472 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 1190 proven. 112 refuted. 0 times theorem prover too weak. 6754 trivial. 0 not checked. [2024-09-21 12:28:49,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024283131] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:49,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:49,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 23 [2024-09-21 12:28:49,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605252752] [2024-09-21 12:28:49,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:49,475 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-21 12:28:49,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:49,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-21 12:28:49,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-09-21 12:28:49,477 INFO L87 Difference]: Start difference. First operand 143 states and 221 transitions. Second operand has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) [2024-09-21 12:28:49,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:49,750 INFO L93 Difference]: Finished difference Result 283 states and 456 transitions. [2024-09-21 12:28:49,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-21 12:28:49,751 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) Word has length 530 [2024-09-21 12:28:49,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:49,754 INFO L225 Difference]: With dead ends: 283 [2024-09-21 12:28:49,755 INFO L226 Difference]: Without dead ends: 153 [2024-09-21 12:28:49,756 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1237 GetRequests, 1203 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2024-09-21 12:28:49,757 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 40 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:49,757 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 275 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-21 12:28:49,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-21 12:28:49,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2024-09-21 12:28:49,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 98 states have internal predecessors, (117), 28 states have call successors, (28), 21 states have call predecessors, (28), 17 states have return successors, (69), 27 states have call predecessors, (69), 27 states have call successors, (69) [2024-09-21 12:28:49,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2024-09-21 12:28:49,781 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 530 [2024-09-21 12:28:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:49,782 INFO L474 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2024-09-21 12:28:49,782 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) [2024-09-21 12:28:49,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2024-09-21 12:28:49,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-09-21 12:28:49,787 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:49,787 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 26, 26, 24, 22, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 13, 13, 11, 7, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:49,802 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-21 12:28:49,991 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-21 12:28:49,992 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:49,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:49,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1175745416, now seen corresponding path program 4 times [2024-09-21 12:28:49,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:49,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828674128] [2024-09-21 12:28:49,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:49,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:50,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-21 12:28:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-21 12:28:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-21 12:28:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 4399 backedges. 542 proven. 693 refuted. 0 times theorem prover too weak. 3164 trivial. 0 not checked. [2024-09-21 12:28:51,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:51,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828674128] [2024-09-21 12:28:51,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828674128] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:51,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420029535] [2024-09-21 12:28:51,216 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-21 12:28:51,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:51,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:51,218 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) [2024-09-21 12:28:51,218 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-21 12:28:51,350 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-21 12:28:51,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-21 12:28:51,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-21 12:28:51,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:51,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4399 backedges. 425 proven. 657 refuted. 0 times theorem prover too weak. 3317 trivial. 0 not checked. [2024-09-21 12:28:51,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:53,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4399 backedges. 427 proven. 685 refuted. 0 times theorem prover too weak. 3287 trivial. 0 not checked. [2024-09-21 12:28:53,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420029535] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:53,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:53,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 19] total 37 [2024-09-21 12:28:53,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553433935] [2024-09-21 12:28:53,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:53,739 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-09-21 12:28:53,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:53,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-09-21 12:28:53,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1138, Unknown=0, NotChecked=0, Total=1332 [2024-09-21 12:28:53,741 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand has 37 states, 36 states have (on average 3.0) internal successors, (108), 37 states have internal predecessors, (108), 27 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 24 states have call predecessors, (47), 27 states have call successors, (47) [2024-09-21 12:28:54,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:54,542 INFO L93 Difference]: Finished difference Result 338 states and 610 transitions. [2024-09-21 12:28:54,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-21 12:28:54,543 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.0) internal successors, (108), 37 states have internal predecessors, (108), 27 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 24 states have call predecessors, (47), 27 states have call successors, (47) Word has length 395 [2024-09-21 12:28:54,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:54,546 INFO L225 Difference]: With dead ends: 338 [2024-09-21 12:28:54,546 INFO L226 Difference]: Without dead ends: 176 [2024-09-21 12:28:54,548 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 943 GetRequests, 882 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=426, Invalid=2436, Unknown=0, NotChecked=0, Total=2862 [2024-09-21 12:28:54,549 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 66 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:54,549 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 814 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-21 12:28:54,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-09-21 12:28:54,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 156. [2024-09-21 12:28:54,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 108 states have (on average 1.0740740740740742) internal successors, (116), 104 states have internal predecessors, (116), 30 states have call successors, (30), 24 states have call predecessors, (30), 17 states have return successors, (48), 27 states have call predecessors, (48), 29 states have call successors, (48) [2024-09-21 12:28:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 194 transitions. [2024-09-21 12:28:54,566 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 194 transitions. Word has length 395 [2024-09-21 12:28:54,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:54,566 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 194 transitions. [2024-09-21 12:28:54,567 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.0) internal successors, (108), 37 states have internal predecessors, (108), 27 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 24 states have call predecessors, (47), 27 states have call successors, (47) [2024-09-21 12:28:54,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:54,567 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 194 transitions. [2024-09-21 12:28:54,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-09-21 12:28:54,569 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:54,569 INFO L216 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 26, 25, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 11, 9, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:54,582 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-21 12:28:54,769 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-21 12:28:54,769 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:54,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:54,770 INFO L85 PathProgramCache]: Analyzing trace with hash 143598254, now seen corresponding path program 5 times [2024-09-21 12:28:54,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:54,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100136342] [2024-09-21 12:28:54,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:54,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-21 12:28:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-21 12:28:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-21 12:28:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-21 12:28:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:55,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:56,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:56,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:56,011 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 1060 proven. 718 refuted. 0 times theorem prover too weak. 3591 trivial. 0 not checked. [2024-09-21 12:28:56,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:56,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100136342] [2024-09-21 12:28:56,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100136342] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:56,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885438829] [2024-09-21 12:28:56,012 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-21 12:28:56,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:56,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:56,014 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) [2024-09-21 12:28:56,018 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-21 12:28:56,236 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-09-21 12:28:56,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-21 12:28:56,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-21 12:28:56,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 918 proven. 135 refuted. 0 times theorem prover too weak. 4316 trivial. 0 not checked. [2024-09-21 12:28:56,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:28:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 920 proven. 137 refuted. 0 times theorem prover too weak. 4312 trivial. 0 not checked. [2024-09-21 12:28:57,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885438829] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:28:57,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:28:57,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 13, 15] total 41 [2024-09-21 12:28:57,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808830302] [2024-09-21 12:28:57,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:28:57,688 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-21 12:28:57,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:28:57,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-21 12:28:57,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1407, Unknown=0, NotChecked=0, Total=1640 [2024-09-21 12:28:57,690 INFO L87 Difference]: Start difference. First operand 156 states and 194 transitions. Second operand has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) [2024-09-21 12:28:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:28:58,182 INFO L93 Difference]: Finished difference Result 337 states and 445 transitions. [2024-09-21 12:28:58,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-21 12:28:58,183 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) Word has length 436 [2024-09-21 12:28:58,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:28:58,185 INFO L225 Difference]: With dead ends: 337 [2024-09-21 12:28:58,185 INFO L226 Difference]: Without dead ends: 194 [2024-09-21 12:28:58,187 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 981 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=416, Invalid=2446, Unknown=0, NotChecked=0, Total=2862 [2024-09-21 12:28:58,188 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 94 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-21 12:28:58,188 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 783 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-21 12:28:58,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-21 12:28:58,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 163. [2024-09-21 12:28:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 113 states have (on average 1.0353982300884956) internal successors, (117), 111 states have internal predecessors, (117), 33 states have call successors, (33), 26 states have call predecessors, (33), 16 states have return successors, (45), 25 states have call predecessors, (45), 32 states have call successors, (45) [2024-09-21 12:28:58,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 195 transitions. [2024-09-21 12:28:58,217 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 195 transitions. Word has length 436 [2024-09-21 12:28:58,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:28:58,218 INFO L474 AbstractCegarLoop]: Abstraction has 163 states and 195 transitions. [2024-09-21 12:28:58,218 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) [2024-09-21 12:28:58,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 195 transitions. [2024-09-21 12:28:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-09-21 12:28:58,219 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:28:58,220 INFO L216 NwaCegarLoop]: trace histogram [29, 29, 28, 28, 23, 23, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 9, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:28:58,233 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-21 12:28:58,423 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:58,423 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:28:58,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:28:58,424 INFO L85 PathProgramCache]: Analyzing trace with hash -47366488, now seen corresponding path program 6 times [2024-09-21 12:28:58,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:28:58,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420405565] [2024-09-21 12:28:58,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:28:58,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:28:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:58,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:28:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:58,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:28:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:58,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:58,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-21 12:28:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-21 12:28:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-21 12:28:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:28:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:28:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:28:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:28:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:28:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:28:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 726 proven. 662 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2024-09-21 12:28:59,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:28:59,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420405565] [2024-09-21 12:28:59,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420405565] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:28:59,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485857061] [2024-09-21 12:28:59,463 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-21 12:28:59,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:28:59,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:28:59,465 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) [2024-09-21 12:28:59,466 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-21 12:28:59,621 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-09-21 12:28:59,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-21 12:28:59,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-21 12:28:59,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:28:59,722 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 603 proven. 95 refuted. 0 times theorem prover too weak. 3672 trivial. 0 not checked. [2024-09-21 12:28:59,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:29:00,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 607 proven. 101 refuted. 0 times theorem prover too weak. 3662 trivial. 0 not checked. [2024-09-21 12:29:00,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485857061] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:29:00,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:29:00,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 10, 13] total 36 [2024-09-21 12:29:00,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183973289] [2024-09-21 12:29:00,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:29:00,662 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-21 12:29:00,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:29:00,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-21 12:29:00,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1077, Unknown=0, NotChecked=0, Total=1260 [2024-09-21 12:29:00,663 INFO L87 Difference]: Start difference. First operand 163 states and 195 transitions. Second operand has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) [2024-09-21 12:29:01,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:29:01,190 INFO L93 Difference]: Finished difference Result 244 states and 295 transitions. [2024-09-21 12:29:01,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-21 12:29:01,191 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) Word has length 395 [2024-09-21 12:29:01,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:29:01,193 INFO L225 Difference]: With dead ends: 244 [2024-09-21 12:29:01,193 INFO L226 Difference]: Without dead ends: 220 [2024-09-21 12:29:01,196 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 889 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=442, Invalid=2638, Unknown=0, NotChecked=0, Total=3080 [2024-09-21 12:29:01,197 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 125 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-21 12:29:01,197 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 604 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-21 12:29:01,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-09-21 12:29:01,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 180. [2024-09-21 12:29:01,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 125 states have (on average 1.032) internal successors, (129), 123 states have internal predecessors, (129), 37 states have call successors, (37), 29 states have call predecessors, (37), 17 states have return successors, (46), 27 states have call predecessors, (46), 36 states have call successors, (46) [2024-09-21 12:29:01,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 212 transitions. [2024-09-21 12:29:01,217 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 212 transitions. Word has length 395 [2024-09-21 12:29:01,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:29:01,217 INFO L474 AbstractCegarLoop]: Abstraction has 180 states and 212 transitions. [2024-09-21 12:29:01,218 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) [2024-09-21 12:29:01,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:29:01,218 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 212 transitions. [2024-09-21 12:29:01,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-09-21 12:29:01,220 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:29:01,220 INFO L216 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:29:01,234 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-21 12:29:01,424 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-21 12:29:01,425 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:29:01,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:29:01,425 INFO L85 PathProgramCache]: Analyzing trace with hash -853718073, now seen corresponding path program 7 times [2024-09-21 12:29:01,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:29:01,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759364748] [2024-09-21 12:29:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:29:01,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:29:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:03,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:29:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:03,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:29:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:04,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:05,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:05,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:05,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:05,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:05,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:05,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:05,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:05,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:29:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-21 12:29:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-21 12:29:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:29:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-21 12:29:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:29:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:06,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-21 12:29:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:07,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:07,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:07,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:07,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:07,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:07,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:07,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:07,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-21 12:29:07,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:29:07,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759364748] [2024-09-21 12:29:07,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759364748] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:29:07,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110849320] [2024-09-21 12:29:07,067 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-21 12:29:07,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:29:07,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:29:07,068 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-21 12:29:07,070 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-21 12:29:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:07,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 271 conjuncts are in the unsatisfiable core [2024-09-21 12:29:07,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:29:07,799 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-21 12:29:07,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:29:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-21 12:29:09,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110849320] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:29:09,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:29:09,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 52 [2024-09-21 12:29:09,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044301415] [2024-09-21 12:29:09,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:29:09,500 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-09-21 12:29:09,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:29:09,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-09-21 12:29:09,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-21 12:29:09,501 INFO L87 Difference]: Start difference. First operand 180 states and 212 transitions. Second operand has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) [2024-09-21 12:29:10,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:29:10,011 INFO L93 Difference]: Finished difference Result 235 states and 297 transitions. [2024-09-21 12:29:10,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-21 12:29:10,012 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) Word has length 463 [2024-09-21 12:29:10,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:29:10,014 INFO L225 Difference]: With dead ends: 235 [2024-09-21 12:29:10,014 INFO L226 Difference]: Without dead ends: 228 [2024-09-21 12:29:10,015 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1198 GetRequests, 1148 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-21 12:29:10,016 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-21 12:29:10,016 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3090 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-21 12:29:10,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-21 12:29:10,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 223. [2024-09-21 12:29:10,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 151 states have (on average 1.0264900662251655) internal successors, (155), 149 states have internal predecessors, (155), 45 states have call successors, (45), 29 states have call predecessors, (45), 26 states have return successors, (85), 44 states have call predecessors, (85), 44 states have call successors, (85) [2024-09-21 12:29:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 285 transitions. [2024-09-21 12:29:10,043 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 285 transitions. Word has length 463 [2024-09-21 12:29:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:29:10,044 INFO L474 AbstractCegarLoop]: Abstraction has 223 states and 285 transitions. [2024-09-21 12:29:10,044 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) [2024-09-21 12:29:10,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:29:10,045 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 285 transitions. [2024-09-21 12:29:10,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-09-21 12:29:10,047 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:29:10,047 INFO L216 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 29, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 12, 11, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:29:10,065 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-21 12:29:10,247 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-21 12:29:10,247 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:29:10,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:29:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1879272131, now seen corresponding path program 8 times [2024-09-21 12:29:10,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:29:10,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919818678] [2024-09-21 12:29:10,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:29:10,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:29:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:10,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:29:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:10,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:29:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:10,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:10,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:29:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-21 12:29:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-21 12:29:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:29:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-21 12:29:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-21 12:29:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-21 12:29:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-21 12:29:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-21 12:29:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 748 proven. 1131 refuted. 0 times theorem prover too weak. 4258 trivial. 0 not checked. [2024-09-21 12:29:11,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:29:11,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919818678] [2024-09-21 12:29:11,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919818678] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:29:11,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640489809] [2024-09-21 12:29:11,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-21 12:29:11,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:29:11,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:29:11,428 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-21 12:29:11,430 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-21 12:29:11,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-21 12:29:11,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-21 12:29:11,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-21 12:29:11,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:29:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 837 proven. 325 refuted. 0 times theorem prover too weak. 4975 trivial. 0 not checked. [2024-09-21 12:29:11,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:29:13,513 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 841 proven. 342 refuted. 0 times theorem prover too weak. 4954 trivial. 0 not checked. [2024-09-21 12:29:13,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640489809] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:29:13,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:29:13,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 17] total 38 [2024-09-21 12:29:13,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246065767] [2024-09-21 12:29:13,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:29:13,515 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-21 12:29:13,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:29:13,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-21 12:29:13,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2024-09-21 12:29:13,516 INFO L87 Difference]: Start difference. First operand 223 states and 285 transitions. Second operand has 38 states, 37 states have (on average 2.918918918918919) internal successors, (108), 38 states have internal predecessors, (108), 25 states have call successors, (35), 1 states have call predecessors, (35), 17 states have return successors, (47), 26 states have call predecessors, (47), 25 states have call successors, (47) [2024-09-21 12:29:14,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:29:14,104 INFO L93 Difference]: Finished difference Result 434 states and 588 transitions. [2024-09-21 12:29:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-21 12:29:14,104 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.918918918918919) internal successors, (108), 38 states have internal predecessors, (108), 25 states have call successors, (35), 1 states have call predecessors, (35), 17 states have return successors, (47), 26 states have call predecessors, (47), 25 states have call successors, (47) Word has length 465 [2024-09-21 12:29:14,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:29:14,107 INFO L225 Difference]: With dead ends: 434 [2024-09-21 12:29:14,107 INFO L226 Difference]: Without dead ends: 170 [2024-09-21 12:29:14,109 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1048 SyntacticMatches, 8 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=575, Invalid=3585, Unknown=0, NotChecked=0, Total=4160 [2024-09-21 12:29:14,109 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 104 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-21 12:29:14,110 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 653 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-21 12:29:14,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-09-21 12:29:14,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 165. [2024-09-21 12:29:14,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 115 states have (on average 1.0347826086956522) internal successors, (119), 113 states have internal predecessors, (119), 33 states have call successors, (33), 27 states have call predecessors, (33), 16 states have return successors, (36), 24 states have call predecessors, (36), 32 states have call successors, (36) [2024-09-21 12:29:14,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 188 transitions. [2024-09-21 12:29:14,124 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 188 transitions. Word has length 465 [2024-09-21 12:29:14,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:29:14,125 INFO L474 AbstractCegarLoop]: Abstraction has 165 states and 188 transitions. [2024-09-21 12:29:14,125 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.918918918918919) internal successors, (108), 38 states have internal predecessors, (108), 25 states have call successors, (35), 1 states have call predecessors, (35), 17 states have return successors, (47), 26 states have call predecessors, (47), 25 states have call successors, (47) [2024-09-21 12:29:14,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:29:14,125 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 188 transitions. [2024-09-21 12:29:14,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-09-21 12:29:14,127 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:29:14,127 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 37, 37, 31, 31, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 13, 11, 9, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:29:14,141 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-21 12:29:14,327 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-21 12:29:14,328 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:29:14,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:29:14,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1544679608, now seen corresponding path program 9 times [2024-09-21 12:29:14,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:29:14,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012896196] [2024-09-21 12:29:14,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:29:14,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:29:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:14,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:29:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:14,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:29:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:14,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:29:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-21 12:29:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-21 12:29:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-21 12:29:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:29:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-21 12:29:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-21 12:29:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-21 12:29:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-21 12:29:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-21 12:29:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-21 12:29:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-21 12:29:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:29:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 575 proven. 1278 refuted. 0 times theorem prover too weak. 6233 trivial. 0 not checked. [2024-09-21 12:29:15,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:29:15,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012896196] [2024-09-21 12:29:15,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012896196] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:29:15,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108191504] [2024-09-21 12:29:15,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-21 12:29:15,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:29:15,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:29:15,485 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-21 12:29:15,486 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-21 12:29:15,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2024-09-21 12:29:15,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-21 12:29:15,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-21 12:29:15,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:29:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 423 proven. 918 refuted. 0 times theorem prover too weak. 6745 trivial. 0 not checked. [2024-09-21 12:29:15,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:29:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 429 proven. 936 refuted. 0 times theorem prover too weak. 6721 trivial. 0 not checked. [2024-09-21 12:29:17,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108191504] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:29:17,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:29:17,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 17] total 36 [2024-09-21 12:29:17,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711915979] [2024-09-21 12:29:17,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:29:17,615 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-21 12:29:17,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:29:17,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-21 12:29:17,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1075, Unknown=0, NotChecked=0, Total=1260 [2024-09-21 12:29:17,616 INFO L87 Difference]: Start difference. First operand 165 states and 188 transitions. Second operand has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) [2024-09-21 12:29:18,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:29:18,130 INFO L93 Difference]: Finished difference Result 276 states and 315 transitions. [2024-09-21 12:29:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-21 12:29:18,131 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) Word has length 531 [2024-09-21 12:29:18,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:29:18,133 INFO L225 Difference]: With dead ends: 276 [2024-09-21 12:29:18,133 INFO L226 Difference]: Without dead ends: 0 [2024-09-21 12:29:18,134 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1252 GetRequests, 1197 SyntacticMatches, 8 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=343, Invalid=2009, Unknown=0, NotChecked=0, Total=2352 [2024-09-21 12:29:18,135 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 60 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-21 12:29:18,136 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 481 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-21 12:29:18,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-21 12:29:18,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-21 12:29:18,136 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) [2024-09-21 12:29:18,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-21 12:29:18,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 531 [2024-09-21 12:29:18,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:29:18,137 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-21 12:29:18,138 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) [2024-09-21 12:29:18,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:29:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-21 12:29:18,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-21 12:29:18,141 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-21 12:29:18,157 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-21 12:29:18,341 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-21 12:29:18,345 INFO L408 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:29:18,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-21 12:29:28,789 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-21 12:29:28,807 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-21 12:29:28,816 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-21 12:29:28,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:29:28 BoogieIcfgContainer [2024-09-21 12:29:28,817 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-21 12:29:28,818 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-21 12:29:28,818 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-21 12:29:28,818 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-21 12:29:28,818 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:28:32" (3/4) ... [2024-09-21 12:29:28,821 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-21 12:29:28,865 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-21 12:29:28,865 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-21 12:29:28,866 INFO L158 Benchmark]: Toolchain (without parser) took 57070.10ms. Allocated memory was 174.1MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 108.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2024-09-21 12:29:28,866 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory was 71.7MB in the beginning and 71.6MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:29:28,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.20ms. Allocated memory is still 174.1MB. Free memory was 108.5MB in the beginning and 97.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 12:29:28,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.16ms. Allocated memory is still 174.1MB. Free memory was 97.2MB in the beginning and 96.4MB in the end (delta: 860.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:29:28,868 INFO L158 Benchmark]: Boogie Preprocessor took 33.79ms. Allocated memory is still 174.1MB. Free memory was 96.4MB in the beginning and 94.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:29:28,869 INFO L158 Benchmark]: RCFGBuilder took 390.54ms. Allocated memory is still 174.1MB. Free memory was 94.7MB in the beginning and 144.7MB in the end (delta: -50.0MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-09-21 12:29:28,869 INFO L158 Benchmark]: TraceAbstraction took 56342.12ms. Allocated memory was 174.1MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 144.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 827.3MB. Max. memory is 16.1GB. [2024-09-21 12:29:28,871 INFO L158 Benchmark]: Witness Printer took 47.44ms. Allocated memory is still 1.4GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:29:28,872 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory was 71.7MB in the beginning and 71.6MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.20ms. Allocated memory is still 174.1MB. Free memory was 108.5MB in the beginning and 97.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.16ms. Allocated memory is still 174.1MB. Free memory was 97.2MB in the beginning and 96.4MB in the end (delta: 860.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.79ms. Allocated memory is still 174.1MB. Free memory was 96.4MB in the beginning and 94.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 390.54ms. Allocated memory is still 174.1MB. Free memory was 94.7MB in the beginning and 144.7MB in the end (delta: -50.0MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * TraceAbstraction took 56342.12ms. Allocated memory was 174.1MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 144.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 827.3MB. Max. memory is 16.1GB. * Witness Printer took 47.44ms. Allocated memory is still 1.4GB. Free memory was 1.2GB in the beginning and 1.2GB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 41]: 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, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.8s, OverallIterations: 17, TraceHistogramMax: 40, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 970 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 882 mSDsluCounter, 9170 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8524 mSDsCounter, 828 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10146 IncrementalHoareTripleChecker+Invalid, 10974 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 828 mSolverCounterUnsat, 646 mSDtfsCounter, 10146 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9490 GetRequests, 8856 SyntacticMatches, 77 SemanticMatches, 557 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7096 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=15, InterpolantAutomatonStates: 420, 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, 17 MinimizatonAttempts, 229 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 33.1s InterpolantComputationTime, 7839 NumberOfCodeBlocks, 7096 NumberOfCodeBlocksAsserted, 107 NumberOfCheckSat, 11698 ConstructedInterpolants, 0 QuantifiedInterpolants, 17744 SizeOfPredicates, 58 NumberOfNonLiveVariables, 7227 ConjunctsInSsa, 439 ConjunctsInUnsatCore, 47 InterpolantComputations, 2 PerfectInterpolantSequences, 116569/134787 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 - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2. Ensures: (((((n < 6) || (\result == 13)) || (7 < n)) && (((\result == 0) || (n == 1)) || (1 < n))) && (((\result == 1) || (n < 1)) || (3 < n))) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1. Ensures: (((((n < 2) || (n == 4)) || (5 < n)) && (((\result == 0) || ((n == 1) && (\result == 1))) || (2 < n))) && ((((n == 1) && (\result == 1)) || (n < 1)) || (2 < n))) RESULT: Ultimate proved your program to be correct! [2024-09-21 12:29:28,896 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