This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m [2024-09-15 20:25:52,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:25:53,055 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-15 20:25:53,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:25:53,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:25:53,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:25:53,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:25:53,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:25:53,093 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:25:53,094 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:25:53,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:25:53,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:25:53,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:25:53,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:25:53,099 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:25:53,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:25:53,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:25:53,100 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:25:53,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 20:25:53,101 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:25:53,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:25:53,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:25:53,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:25:53,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:25:53,106 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:25:53,106 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:25:53,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:25:53,106 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:25:53,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:25:53,107 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:25:53,107 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:25:53,107 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:25:53,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:25:53,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:25:53,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:25:53,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:25:53,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 20:25:53,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 20:25:53,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:25:53,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:25:53,110 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:25:53,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:25:53,111 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:25:53,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:25:53,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:25:53,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:25:53,464 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:25:53,465 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:25:53,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_nested_2.yml/witness-2.1.yml [2024-09-15 20:25:53,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:25:53,513 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:25:53,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursified_loop-simple/recursified_nested_2.c [2024-09-15 20:25:55,112 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:25:55,305 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:25:55,306 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-simple/recursified_nested_2.c [2024-09-15 20:25:55,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/07fddc6e0/abc23dbb034344dfb2d4b3958306cab7/FLAG1d3e98be2 [2024-09-15 20:25:55,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/07fddc6e0/abc23dbb034344dfb2d4b3958306cab7 [2024-09-15 20:25:55,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:25:55,336 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-15 20:25:55,338 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:25:55,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:25:55,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:25:55,346 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:25:53" (1/2) ... [2024-09-15 20:25:55,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c223c59 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:25:55, skipping insertion in model container [2024-09-15 20:25:55,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:25:53" (1/2) ... [2024-09-15 20:25:55,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@86b63e2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:25:55, skipping insertion in model container [2024-09-15 20:25:55,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:25:55" (2/2) ... [2024-09-15 20:25:55,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c223c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55, skipping insertion in model container [2024-09-15 20:25:55,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:25:55" (2/2) ... [2024-09-15 20:25:55,356 INFO L90 nessWitnessExtractor]: Witness did not contain any usable entries. [2024-09-15 20:25:55,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:25:55,549 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/recursified_loop-simple/recursified_nested_2.c[1611,1624] [2024-09-15 20:25:55,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:25:55,566 INFO L200 MainTranslator]: Completed pre-run [2024-09-15 20:25:55,583 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/recursified_loop-simple/recursified_nested_2.c[1611,1624] [2024-09-15 20:25:55,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:25:55,600 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:25:55,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55 WrapperNode [2024-09-15 20:25:55,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:25:55,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-15 20:25:55,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-15 20:25:55,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-15 20:25:55,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,635 INFO L138 Inliner]: procedures = 13, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2024-09-15 20:25:55,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-15 20:25:55,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:25:55,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:25:55,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:25:55,646 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,665 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 6, 6]. 43 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1]. The 4 writes are split as follows [0, 2, 2]. [2024-09-15 20:25:55,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:25:55,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:25:55,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:25:55,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:25:55,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (1/1) ... [2024-09-15 20:25:55,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:25:55,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:25:55,718 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) [2024-09-15 20:25:55,721 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 [2024-09-15 20:25:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:25:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-15 20:25:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-15 20:25:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-09-15 20:25:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-15 20:25:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-15 20:25:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-15 20:25:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-09-15 20:25:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_20_to_21_0 [2024-09-15 20:25:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_20_to_21_0 [2024-09-15 20:25:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:25:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:25:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-15 20:25:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-15 20:25:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-09-15 20:25:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_21_to_21_0 [2024-09-15 20:25:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_21_to_21_0 [2024-09-15 20:25:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-15 20:25:55,836 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:25:55,838 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:25:55,971 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-09-15 20:25:55,971 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:25:56,005 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:25:56,005 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-15 20:25:56,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:25:56 BoogieIcfgContainer [2024-09-15 20:25:56,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:25:56,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-15 20:25:56,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-15 20:25:56,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-15 20:25:56,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:25:53" (1/4) ... [2024-09-15 20:25:56,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c350d0b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:25:56, skipping insertion in model container [2024-09-15 20:25:56,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:25:55" (2/4) ... [2024-09-15 20:25:56,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c350d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:25:56, skipping insertion in model container [2024-09-15 20:25:56,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:55" (3/4) ... [2024-09-15 20:25:56,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c350d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:25:56, skipping insertion in model container [2024-09-15 20:25:56,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:25:56" (4/4) ... [2024-09-15 20:25:56,015 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_nested_2.c [2024-09-15 20:25:56,031 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-15 20:25:56,031 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-15 20:25:56,073 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-15 20:25:56,080 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=None, 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;@42636187, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-15 20:25:56,081 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-15 20:25:56,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-15 20:25:56,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-15 20:25:56,092 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:25:56,093 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:25:56,093 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:25:56,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:25:56,101 INFO L85 PathProgramCache]: Analyzing trace with hash 855928239, now seen corresponding path program 1 times [2024-09-15 20:25:56,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:25:56,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828002426] [2024-09-15 20:25:56,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:25:56,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:25:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:56,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:25:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:25:56,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:25:56,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828002426] [2024-09-15 20:25:56,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828002426] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:25:56,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:25:56,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-15 20:25:56,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090214742] [2024-09-15 20:25:56,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:25:56,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-15 20:25:56,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:25:56,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-15 20:25:56,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-15 20:25:56,739 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 20:25:56,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:25:56,881 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-09-15 20:25:56,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-15 20:25:56,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-15 20:25:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:25:56,892 INFO L225 Difference]: With dead ends: 25 [2024-09-15 20:25:56,893 INFO L226 Difference]: Without dead ends: 23 [2024-09-15 20:25:56,895 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-15 20:25:56,897 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:25:56,899 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 48 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:25:56,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-15 20:25:56,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2024-09-15 20:25:56,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-15 20:25:56,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-09-15 20:25:56,936 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 10 [2024-09-15 20:25:56,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:25:56,936 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-09-15 20:25:56,937 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 20:25:56,937 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-09-15 20:25:56,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-15 20:25:56,938 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:25:56,938 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:25:56,939 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-15 20:25:56,939 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:25:56,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:25:56,940 INFO L85 PathProgramCache]: Analyzing trace with hash 255373073, now seen corresponding path program 1 times [2024-09-15 20:25:56,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:25:56,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455140109] [2024-09-15 20:25:56,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:25:56,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:25:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:57,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:25:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:57,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:25:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:57,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-09-15 20:25:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:57,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-15 20:25:57,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:25:57,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455140109] [2024-09-15 20:25:57,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455140109] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:25:57,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:25:57,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-15 20:25:57,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494197866] [2024-09-15 20:25:57,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:25:57,216 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-15 20:25:57,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:25:57,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-15 20:25:57,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-15 20:25:57,219 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 1 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-15 20:25:57,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:25:57,307 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2024-09-15 20:25:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-15 20:25:57,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 1 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2024-09-15 20:25:57,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:25:57,308 INFO L225 Difference]: With dead ends: 23 [2024-09-15 20:25:57,308 INFO L226 Difference]: Without dead ends: 23 [2024-09-15 20:25:57,309 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-15 20:25:57,310 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:25:57,310 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 58 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:25:57,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-15 20:25:57,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-15 20:25:57,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-15 20:25:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2024-09-15 20:25:57,318 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 21 [2024-09-15 20:25:57,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:25:57,319 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-09-15 20:25:57,319 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 1 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-15 20:25:57,319 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-09-15 20:25:57,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-15 20:25:57,321 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:25:57,322 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:25:57,322 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-15 20:25:57,322 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:25:57,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:25:57,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1037516303, now seen corresponding path program 1 times [2024-09-15 20:25:57,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:25:57,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811091279] [2024-09-15 20:25:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:25:57,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:25:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:57,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:25:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:57,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:25:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:57,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:25:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:57,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-15 20:25:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:57,951 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-15 20:25:57,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:25:57,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811091279] [2024-09-15 20:25:57,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811091279] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:25:57,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503479826] [2024-09-15 20:25:57,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:25:57,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:25:57,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:25:57,956 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) [2024-09-15 20:25:57,957 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-15 20:25:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:58,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-15 20:25:58,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:25:58,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:25:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-15 20:25:58,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:25:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-15 20:25:58,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503479826] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:25:58,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:25:58,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 25 [2024-09-15 20:25:58,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709260814] [2024-09-15 20:25:58,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:25:58,890 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-15 20:25:58,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:25:58,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-15 20:25:58,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2024-09-15 20:25:58,892 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 25 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 20 states have internal predecessors, (37), 10 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (11), 7 states have call predecessors, (11), 10 states have call successors, (11) [2024-09-15 20:25:59,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:25:59,246 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2024-09-15 20:25:59,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-15 20:25:59,247 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 20 states have internal predecessors, (37), 10 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (11), 7 states have call predecessors, (11), 10 states have call successors, (11) Word has length 26 [2024-09-15 20:25:59,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:25:59,248 INFO L225 Difference]: With dead ends: 27 [2024-09-15 20:25:59,248 INFO L226 Difference]: Without dead ends: 27 [2024-09-15 20:25:59,249 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=881, Unknown=0, NotChecked=0, Total=1056 [2024-09-15 20:25:59,250 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 23 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:25:59,251 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 99 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:25:59,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-09-15 20:25:59,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-09-15 20:25:59,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-15 20:25:59,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-09-15 20:25:59,261 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 26 [2024-09-15 20:25:59,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:25:59,261 INFO L474 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-09-15 20:25:59,261 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 20 states have internal predecessors, (37), 10 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (11), 7 states have call predecessors, (11), 10 states have call successors, (11) [2024-09-15 20:25:59,261 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-09-15 20:25:59,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-15 20:25:59,264 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:25:59,264 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:25:59,282 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-15 20:25:59,465 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 [2024-09-15 20:25:59,466 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:25:59,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:25:59,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1013053495, now seen corresponding path program 2 times [2024-09-15 20:25:59,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:25:59,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229461831] [2024-09-15 20:25:59,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:25:59,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:25:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:59,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:25:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:59,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:25:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:00,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:00,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:00,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-15 20:26:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:00,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:00,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:00,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:00,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-15 20:26:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:00,310 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-09-15 20:26:00,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:00,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229461831] [2024-09-15 20:26:00,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229461831] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:00,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55006692] [2024-09-15 20:26:00,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-15 20:26:00,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:00,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:00,314 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) [2024-09-15 20:26:00,315 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-15 20:26:00,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-15 20:26:00,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:26:00,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-09-15 20:26:00,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:00,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:26:00,672 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 47 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-09-15 20:26:00,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 47 proven. 13 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-15 20:26:01,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55006692] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:26:01,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:26:01,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 14] total 30 [2024-09-15 20:26:01,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466734911] [2024-09-15 20:26:01,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:01,784 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-15 20:26:01,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:01,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-15 20:26:01,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=706, Unknown=0, NotChecked=0, Total=870 [2024-09-15 20:26:01,786 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 30 states, 22 states have (on average 2.090909090909091) internal successors, (46), 25 states have internal predecessors, (46), 10 states have call successors, (19), 7 states have call predecessors, (19), 9 states have return successors, (16), 7 states have call predecessors, (16), 10 states have call successors, (16) [2024-09-15 20:26:02,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:02,040 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2024-09-15 20:26:02,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-15 20:26:02,041 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 22 states have (on average 2.090909090909091) internal successors, (46), 25 states have internal predecessors, (46), 10 states have call successors, (19), 7 states have call predecessors, (19), 9 states have return successors, (16), 7 states have call predecessors, (16), 10 states have call successors, (16) Word has length 52 [2024-09-15 20:26:02,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:02,042 INFO L225 Difference]: With dead ends: 31 [2024-09-15 20:26:02,042 INFO L226 Difference]: Without dead ends: 31 [2024-09-15 20:26:02,043 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=242, Invalid=1018, Unknown=0, NotChecked=0, Total=1260 [2024-09-15 20:26:02,044 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:02,044 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 157 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:26:02,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-09-15 20:26:02,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-09-15 20:26:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 8 states have return successors, (10), 8 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-15 20:26:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-09-15 20:26:02,049 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 52 [2024-09-15 20:26:02,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:02,050 INFO L474 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-09-15 20:26:02,050 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 22 states have (on average 2.090909090909091) internal successors, (46), 25 states have internal predecessors, (46), 10 states have call successors, (19), 7 states have call predecessors, (19), 9 states have return successors, (16), 7 states have call predecessors, (16), 10 states have call successors, (16) [2024-09-15 20:26:02,050 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-09-15 20:26:02,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-15 20:26:02,052 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:02,052 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:02,069 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-15 20:26:02,252 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 [2024-09-15 20:26:02,253 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:26:02,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:02,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1958161335, now seen corresponding path program 3 times [2024-09-15 20:26:02,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:02,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744075698] [2024-09-15 20:26:02,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:02,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:02,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:26:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-15 20:26:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-15 20:26:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 10 proven. 118 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-15 20:26:03,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:03,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744075698] [2024-09-15 20:26:03,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744075698] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:03,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986239561] [2024-09-15 20:26:03,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-15 20:26:03,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:03,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:03,691 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) [2024-09-15 20:26:03,693 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-15 20:26:03,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-15 20:26:03,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:26:03,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-09-15 20:26:03,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:03,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:26:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-09-15 20:26:04,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:04,943 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-09-15 20:26:04,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986239561] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:26:04,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:26:04,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 14] total 35 [2024-09-15 20:26:04,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263090369] [2024-09-15 20:26:04,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:04,944 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-15 20:26:04,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:04,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-15 20:26:04,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1031, Unknown=0, NotChecked=0, Total=1190 [2024-09-15 20:26:04,946 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 35 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 29 states have internal predecessors, (50), 13 states have call successors, (17), 7 states have call predecessors, (17), 13 states have return successors, (19), 13 states have call predecessors, (19), 13 states have call successors, (19) [2024-09-15 20:26:05,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:05,347 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2024-09-15 20:26:05,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-15 20:26:05,347 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 29 states have internal predecessors, (50), 13 states have call successors, (17), 7 states have call predecessors, (17), 13 states have return successors, (19), 13 states have call predecessors, (19), 13 states have call successors, (19) Word has length 72 [2024-09-15 20:26:05,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:05,348 INFO L225 Difference]: With dead ends: 35 [2024-09-15 20:26:05,348 INFO L226 Difference]: Without dead ends: 35 [2024-09-15 20:26:05,349 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=311, Invalid=1759, Unknown=0, NotChecked=0, Total=2070 [2024-09-15 20:26:05,350 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 30 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:05,350 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 140 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-15 20:26:05,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-09-15 20:26:05,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-09-15 20:26:05,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 10 states have return successors, (12), 10 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-15 20:26:05,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2024-09-15 20:26:05,359 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 72 [2024-09-15 20:26:05,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:05,360 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2024-09-15 20:26:05,360 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 29 states have internal predecessors, (50), 13 states have call successors, (17), 7 states have call predecessors, (17), 13 states have return successors, (19), 13 states have call predecessors, (19), 13 states have call successors, (19) [2024-09-15 20:26:05,360 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2024-09-15 20:26:05,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-15 20:26:05,362 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:05,362 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 15, 15, 15, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:05,376 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-15 20:26:05,562 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 [2024-09-15 20:26:05,563 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:26:05,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:05,563 INFO L85 PathProgramCache]: Analyzing trace with hash 620375637, now seen corresponding path program 4 times [2024-09-15 20:26:05,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:05,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523241938] [2024-09-15 20:26:05,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:05,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:06,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:26:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:06,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-15 20:26:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-15 20:26:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-15 20:26:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:07,661 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 6 proven. 307 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-09-15 20:26:07,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:07,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523241938] [2024-09-15 20:26:07,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523241938] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:07,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2834962] [2024-09-15 20:26:07,662 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-15 20:26:07,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:07,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:07,664 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) [2024-09-15 20:26:07,666 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-15 20:26:07,824 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-15 20:26:07,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:26:07,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-09-15 20:26:07,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:07,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:26:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 522 proven. 35 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-09-15 20:26:08,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 180 proven. 242 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-09-15 20:26:10,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2834962] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:26:10,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:26:10,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 26] total 40 [2024-09-15 20:26:10,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283790419] [2024-09-15 20:26:10,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:10,496 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-15 20:26:10,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:10,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-15 20:26:10,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=1240, Unknown=0, NotChecked=0, Total=1560 [2024-09-15 20:26:10,498 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 40 states, 32 states have (on average 1.8125) internal successors, (58), 32 states have internal predecessors, (58), 10 states have call successors, (22), 10 states have call predecessors, (22), 14 states have return successors, (26), 12 states have call predecessors, (26), 10 states have call successors, (26) [2024-09-15 20:26:10,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:10,743 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2024-09-15 20:26:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-15 20:26:10,744 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 32 states have (on average 1.8125) internal successors, (58), 32 states have internal predecessors, (58), 10 states have call successors, (22), 10 states have call predecessors, (22), 14 states have return successors, (26), 12 states have call predecessors, (26), 10 states have call successors, (26) Word has length 118 [2024-09-15 20:26:10,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:10,745 INFO L225 Difference]: With dead ends: 37 [2024-09-15 20:26:10,745 INFO L226 Difference]: Without dead ends: 37 [2024-09-15 20:26:10,746 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 248 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=410, Invalid=1482, Unknown=0, NotChecked=0, Total=1892 [2024-09-15 20:26:10,746 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:10,747 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 239 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-15 20:26:10,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-09-15 20:26:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-09-15 20:26:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 23 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 11 states have return successors, (13), 11 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-15 20:26:10,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2024-09-15 20:26:10,754 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 118 [2024-09-15 20:26:10,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:10,754 INFO L474 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2024-09-15 20:26:10,755 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 32 states have (on average 1.8125) internal successors, (58), 32 states have internal predecessors, (58), 10 states have call successors, (22), 10 states have call predecessors, (22), 14 states have return successors, (26), 12 states have call predecessors, (26), 10 states have call successors, (26) [2024-09-15 20:26:10,755 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2024-09-15 20:26:10,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-15 20:26:10,756 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:10,756 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 18, 18, 18, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:10,769 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-15 20:26:10,958 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 [2024-09-15 20:26:10,958 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:26:10,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:10,958 INFO L85 PathProgramCache]: Analyzing trace with hash -149039543, now seen corresponding path program 5 times [2024-09-15 20:26:10,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:10,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378713470] [2024-09-15 20:26:10,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:10,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:11,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:26:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2024-09-15 20:26:12,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:12,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378713470] [2024-09-15 20:26:12,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378713470] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:12,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060386784] [2024-09-15 20:26:12,900 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-15 20:26:12,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:12,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:12,902 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) [2024-09-15 20:26:12,904 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-15 20:26:13,362 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-09-15 20:26:13,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:26:13,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-09-15 20:26:13,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:13,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:26:13,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-15 20:26:13,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-09-15 20:26:13,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1009 trivial. 0 not checked. [2024-09-15 20:26:13,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:14,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060386784] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:14,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-15 20:26:14,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11] total 24 [2024-09-15 20:26:14,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979292390] [2024-09-15 20:26:14,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:14,076 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-15 20:26:14,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:14,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-15 20:26:14,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=587, Unknown=0, NotChecked=0, Total=756 [2024-09-15 20:26:14,081 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 24 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 20 states have internal predecessors, (33), 10 states have call successors, (12), 4 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 10 states have call successors, (11) [2024-09-15 20:26:14,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:14,240 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2024-09-15 20:26:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-15 20:26:14,241 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 20 states have internal predecessors, (33), 10 states have call successors, (12), 4 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 10 states have call successors, (11) Word has length 133 [2024-09-15 20:26:14,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:14,243 INFO L225 Difference]: With dead ends: 45 [2024-09-15 20:26:14,243 INFO L226 Difference]: Without dead ends: 45 [2024-09-15 20:26:14,243 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2024-09-15 20:26:14,244 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:14,244 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 38 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:26:14,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-09-15 20:26:14,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2024-09-15 20:26:14,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 4 states have call successors, (4), 2 states have call predecessors, (4), 13 states have return successors, (17), 14 states have call predecessors, (17), 4 states have call successors, (17) [2024-09-15 20:26:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2024-09-15 20:26:14,250 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 133 [2024-09-15 20:26:14,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:14,251 INFO L474 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2024-09-15 20:26:14,251 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 20 states have internal predecessors, (33), 10 states have call successors, (12), 4 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 10 states have call successors, (11) [2024-09-15 20:26:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2024-09-15 20:26:14,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-15 20:26:14,252 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:14,252 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 18, 18, 18, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:14,271 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-15 20:26:14,453 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 [2024-09-15 20:26:14,453 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:26:14,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:14,454 INFO L85 PathProgramCache]: Analyzing trace with hash -149037621, now seen corresponding path program 1 times [2024-09-15 20:26:14,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:14,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961729429] [2024-09-15 20:26:14,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:14,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:14,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:26:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:15,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:16,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:16,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:16,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:16,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:16,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:16,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:16,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:16,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:16,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 1003 trivial. 0 not checked. [2024-09-15 20:26:16,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:16,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961729429] [2024-09-15 20:26:16,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961729429] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:16,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119279217] [2024-09-15 20:26:16,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:16,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:16,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:16,198 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) [2024-09-15 20:26:16,199 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-15 20:26:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:16,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-09-15 20:26:16,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:16,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:26:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2024-09-15 20:26:16,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:17,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2024-09-15 20:26:17,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119279217] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:26:17,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:26:17,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 18] total 37 [2024-09-15 20:26:17,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75085915] [2024-09-15 20:26:17,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:17,769 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-09-15 20:26:17,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:17,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-09-15 20:26:17,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1087, Unknown=0, NotChecked=0, Total=1332 [2024-09-15 20:26:17,771 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 37 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 30 states have internal predecessors, (45), 15 states have call successors, (17), 8 states have call predecessors, (17), 10 states have return successors, (18), 14 states have call predecessors, (18), 15 states have call successors, (18) [2024-09-15 20:26:18,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:18,006 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2024-09-15 20:26:18,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-15 20:26:18,006 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 30 states have internal predecessors, (45), 15 states have call successors, (17), 8 states have call predecessors, (17), 10 states have return successors, (18), 14 states have call predecessors, (18), 15 states have call successors, (18) Word has length 133 [2024-09-15 20:26:18,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:18,008 INFO L225 Difference]: With dead ends: 41 [2024-09-15 20:26:18,008 INFO L226 Difference]: Without dead ends: 41 [2024-09-15 20:26:18,009 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 288 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=358, Invalid=1448, Unknown=0, NotChecked=0, Total=1806 [2024-09-15 20:26:18,009 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 24 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:18,010 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 121 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:26:18,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-09-15 20:26:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-09-15 20:26:18,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 13 states have return successors, (15), 13 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-15 20:26:18,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2024-09-15 20:26:18,015 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 133 [2024-09-15 20:26:18,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:18,015 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2024-09-15 20:26:18,015 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 30 states have internal predecessors, (45), 15 states have call successors, (17), 8 states have call predecessors, (17), 10 states have return successors, (18), 14 states have call predecessors, (18), 15 states have call successors, (18) [2024-09-15 20:26:18,016 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2024-09-15 20:26:18,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-09-15 20:26:18,018 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:18,018 INFO L216 NwaCegarLoop]: trace histogram [35, 35, 30, 30, 30, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:18,036 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-15 20:26:18,218 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 [2024-09-15 20:26:18,219 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:26:18,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:18,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1394731601, now seen corresponding path program 6 times [2024-09-15 20:26:18,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:18,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343289329] [2024-09-15 20:26:18,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:18,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:19,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:26:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:20,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:20,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:20,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:20,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:20,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:20,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:20,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:20,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:21,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2905 backedges. 16 proven. 35 refuted. 0 times theorem prover too weak. 2854 trivial. 0 not checked. [2024-09-15 20:26:22,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:22,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343289329] [2024-09-15 20:26:22,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343289329] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:22,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403814212] [2024-09-15 20:26:22,419 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-15 20:26:22,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:22,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:22,421 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) [2024-09-15 20:26:22,422 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-15 20:26:24,203 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2024-09-15 20:26:24,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:26:24,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 178 conjuncts are in the unsatisfiable core [2024-09-15 20:26:24,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:24,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-15 20:26:24,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-09-15 20:26:24,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2905 backedges. 1192 proven. 141 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2024-09-15 20:26:24,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:25,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2024-09-15 20:26:26,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2024-09-15 20:26:26,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2024-09-15 20:26:26,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2024-09-15 20:26:27,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403814212] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:27,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-15 20:26:27,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 35 [2024-09-15 20:26:27,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841593194] [2024-09-15 20:26:27,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:27,595 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-15 20:26:27,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:27,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-15 20:26:27,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1433, Unknown=0, NotChecked=0, Total=1560 [2024-09-15 20:26:27,596 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 35 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 33 states have internal predecessors, (51), 13 states have call successors, (15), 3 states have call predecessors, (15), 15 states have return successors, (21), 18 states have call predecessors, (21), 13 states have call successors, (21) [2024-09-15 20:26:28,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:28,827 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2024-09-15 20:26:28,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-15 20:26:28,828 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 33 states have internal predecessors, (51), 13 states have call successors, (15), 3 states have call predecessors, (15), 15 states have return successors, (21), 18 states have call predecessors, (21), 13 states have call successors, (21) Word has length 215 [2024-09-15 20:26:28,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:28,830 INFO L225 Difference]: With dead ends: 76 [2024-09-15 20:26:28,830 INFO L226 Difference]: Without dead ends: 75 [2024-09-15 20:26:28,833 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1344 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=495, Invalid=4907, Unknown=0, NotChecked=0, Total=5402 [2024-09-15 20:26:28,834 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 73 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:28,834 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 70 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-15 20:26:28,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-09-15 20:26:28,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2024-09-15 20:26:28,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 5 states have call successors, (5), 3 states have call predecessors, (5), 21 states have return successors, (37), 22 states have call predecessors, (37), 5 states have call successors, (37) [2024-09-15 20:26:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2024-09-15 20:26:28,853 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 215 [2024-09-15 20:26:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:28,854 INFO L474 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2024-09-15 20:26:28,854 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 33 states have internal predecessors, (51), 13 states have call successors, (15), 3 states have call predecessors, (15), 15 states have return successors, (21), 18 states have call predecessors, (21), 13 states have call successors, (21) [2024-09-15 20:26:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2024-09-15 20:26:28,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-09-15 20:26:28,859 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:28,859 INFO L216 NwaCegarLoop]: trace histogram [35, 35, 30, 30, 30, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:28,882 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-15 20:26:29,060 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 [2024-09-15 20:26:29,060 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:26:29,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:29,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1394733523, now seen corresponding path program 2 times [2024-09-15 20:26:29,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:29,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328414092] [2024-09-15 20:26:29,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:29,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:30,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:26:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:31,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2905 backedges. 16 proven. 35 refuted. 0 times theorem prover too weak. 2854 trivial. 0 not checked. [2024-09-15 20:26:32,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:32,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328414092] [2024-09-15 20:26:32,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328414092] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:32,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022819888] [2024-09-15 20:26:32,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-15 20:26:32,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:32,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:32,711 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) [2024-09-15 20:26:32,714 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-15 20:26:33,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-15 20:26:33,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:26:33,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-09-15 20:26:33,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:33,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:26:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2905 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 2870 trivial. 0 not checked. [2024-09-15 20:26:33,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2905 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 2815 trivial. 0 not checked. [2024-09-15 20:26:36,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022819888] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:26:36,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:26:36,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 26] total 46 [2024-09-15 20:26:36,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029151258] [2024-09-15 20:26:36,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:36,084 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-15 20:26:36,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:36,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-15 20:26:36,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=1676, Unknown=0, NotChecked=0, Total=2070 [2024-09-15 20:26:36,086 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 46 states, 36 states have (on average 1.5) internal successors, (54), 37 states have internal predecessors, (54), 18 states have call successors, (21), 10 states have call predecessors, (21), 14 states have return successors, (26), 20 states have call predecessors, (26), 18 states have call successors, (26) [2024-09-15 20:26:36,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:36,342 INFO L93 Difference]: Finished difference Result 65 states and 84 transitions. [2024-09-15 20:26:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-15 20:26:36,343 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 36 states have (on average 1.5) internal successors, (54), 37 states have internal predecessors, (54), 18 states have call successors, (21), 10 states have call predecessors, (21), 14 states have return successors, (26), 20 states have call predecessors, (26), 18 states have call successors, (26) Word has length 215 [2024-09-15 20:26:36,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:36,344 INFO L225 Difference]: With dead ends: 65 [2024-09-15 20:26:36,344 INFO L226 Difference]: Without dead ends: 65 [2024-09-15 20:26:36,345 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 478 SyntacticMatches, 6 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1169 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=577, Invalid=2179, Unknown=0, NotChecked=0, Total=2756 [2024-09-15 20:26:36,345 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 27 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:36,346 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 137 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:26:36,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-09-15 20:26:36,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-09-15 20:26:36,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 5 states have call successors, (5), 3 states have call predecessors, (5), 22 states have return successors, (38), 23 states have call predecessors, (38), 5 states have call successors, (38) [2024-09-15 20:26:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2024-09-15 20:26:36,356 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 215 [2024-09-15 20:26:36,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:36,356 INFO L474 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2024-09-15 20:26:36,356 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 36 states have (on average 1.5) internal successors, (54), 37 states have internal predecessors, (54), 18 states have call successors, (21), 10 states have call predecessors, (21), 14 states have return successors, (26), 20 states have call predecessors, (26), 18 states have call successors, (26) [2024-09-15 20:26:36,357 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2024-09-15 20:26:36,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-09-15 20:26:36,359 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:36,360 INFO L216 NwaCegarLoop]: trace histogram [46, 46, 40, 40, 40, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:36,378 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-15 20:26:36,560 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 [2024-09-15 20:26:36,561 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:26:36,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:36,561 INFO L85 PathProgramCache]: Analyzing trace with hash 813985921, now seen corresponding path program 3 times [2024-09-15 20:26:36,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:36,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346323307] [2024-09-15 20:26:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:37,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:26:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:38,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-15 20:26:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-15 20:26:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-15 20:26:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-15 20:26:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 5049 backedges. 67 proven. 1069 refuted. 0 times theorem prover too weak. 3913 trivial. 0 not checked. [2024-09-15 20:26:39,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:39,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346323307] [2024-09-15 20:26:39,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346323307] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:39,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521023780] [2024-09-15 20:26:39,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-15 20:26:39,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:39,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:39,828 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) [2024-09-15 20:26:39,830 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-15 20:26:40,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-09-15 20:26:40,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:26:40,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 177 conjuncts are in the unsatisfiable core [2024-09-15 20:26:40,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:41,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:26:41,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5049 backedges. 3053 proven. 156 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2024-09-15 20:26:41,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:45,569 INFO L134 CoverageAnalysis]: Checked inductivity of 5049 backedges. 908 proven. 559 refuted. 0 times theorem prover too weak. 3582 trivial. 0 not checked. [2024-09-15 20:26:45,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521023780] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:26:45,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:26:45,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 30] total 47 [2024-09-15 20:26:45,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237387943] [2024-09-15 20:26:45,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:45,570 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-15 20:26:45,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:45,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-15 20:26:45,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1858, Unknown=0, NotChecked=0, Total=2162 [2024-09-15 20:26:45,572 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 47 states, 33 states have (on average 1.9696969696969697) internal successors, (65), 38 states have internal predecessors, (65), 19 states have call successors, (30), 11 states have call predecessors, (30), 10 states have return successors, (35), 10 states have call predecessors, (35), 19 states have call successors, (35) [2024-09-15 20:26:46,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:46,306 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2024-09-15 20:26:46,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-15 20:26:46,306 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 33 states have (on average 1.9696969696969697) internal successors, (65), 38 states have internal predecessors, (65), 19 states have call successors, (30), 11 states have call predecessors, (30), 10 states have return successors, (35), 10 states have call predecessors, (35), 19 states have call successors, (35) Word has length 276 [2024-09-15 20:26:46,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:46,307 INFO L225 Difference]: With dead ends: 62 [2024-09-15 20:26:46,307 INFO L226 Difference]: Without dead ends: 60 [2024-09-15 20:26:46,308 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 622 SyntacticMatches, 7 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1254 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1177, Invalid=4523, Unknown=0, NotChecked=0, Total=5700 [2024-09-15 20:26:46,309 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 129 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:46,309 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 254 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-15 20:26:46,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-09-15 20:26:46,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-09-15 20:26:46,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 37 states have internal predecessors, (38), 9 states have call successors, (9), 8 states have call predecessors, (9), 14 states have return successors, (15), 14 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-15 20:26:46,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2024-09-15 20:26:46,316 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 276 [2024-09-15 20:26:46,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:46,317 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2024-09-15 20:26:46,317 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 33 states have (on average 1.9696969696969697) internal successors, (65), 38 states have internal predecessors, (65), 19 states have call successors, (30), 11 states have call predecessors, (30), 10 states have return successors, (35), 10 states have call predecessors, (35), 19 states have call successors, (35) [2024-09-15 20:26:46,317 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2024-09-15 20:26:46,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-09-15 20:26:46,322 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:46,322 INFO L216 NwaCegarLoop]: trace histogram [42, 42, 36, 36, 36, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:46,343 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-15 20:26:46,522 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 [2024-09-15 20:26:46,522 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:26:46,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:46,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1043831351, now seen corresponding path program 4 times [2024-09-15 20:26:46,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:46,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542970553] [2024-09-15 20:26:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:46,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:47,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:26:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:47,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:47,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:47,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:47,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:47,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:47,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:47,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:47,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-15 20:26:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:48,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4203 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 4165 trivial. 0 not checked. [2024-09-15 20:26:48,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:48,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542970553] [2024-09-15 20:26:48,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542970553] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:48,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810040832] [2024-09-15 20:26:48,801 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-15 20:26:48,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:48,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:48,805 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) [2024-09-15 20:26:48,807 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-15 20:26:49,228 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-15 20:26:49,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:26:49,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-09-15 20:26:49,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:49,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-15 20:26:49,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4203 backedges. 1186 proven. 18 refuted. 0 times theorem prover too weak. 2999 trivial. 0 not checked. [2024-09-15 20:26:49,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:50,498 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-09-15 20:26:50,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2024-09-15 20:26:50,907 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-09-15 20:26:50,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2024-09-15 20:26:51,252 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-09-15 20:26:51,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2024-09-15 20:26:51,450 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-09-15 20:26:51,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2024-09-15 20:26:51,614 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-09-15 20:26:51,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2024-09-15 20:26:51,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810040832] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:51,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-15 20:26:51,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2024-09-15 20:26:51,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849464255] [2024-09-15 20:26:51,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:51,857 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-15 20:26:51,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:51,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-15 20:26:51,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2024-09-15 20:26:51,858 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-15 20:26:56,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-09-15 20:26:56,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:56,125 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2024-09-15 20:26:56,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-15 20:26:56,126 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 256 [2024-09-15 20:26:56,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:56,127 INFO L225 Difference]: With dead ends: 61 [2024-09-15 20:26:56,127 INFO L226 Difference]: Without dead ends: 0 [2024-09-15 20:26:56,127 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 373 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=774, Unknown=0, NotChecked=0, Total=930 [2024-09-15 20:26:56,128 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 22 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:56,128 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 25 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 178 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2024-09-15 20:26:56,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-15 20:26:56,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-15 20:26:56,128 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) [2024-09-15 20:26:56,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-15 20:26:56,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 256 [2024-09-15 20:26:56,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:56,129 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-15 20:26:56,129 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 14 states have internal predecessors, (30), 5 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-15 20:26:56,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-15 20:26:56,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-15 20:26:56,132 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-15 20:26:56,152 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-15 20:26:56,336 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 [2024-09-15 20:26:56,339 INFO L408 BasicCegarLoop]: Path program histogram: [6, 4, 1, 1] [2024-09-15 20:26:56,341 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-15 20:26:56,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:26:56 BoogieIcfgContainer [2024-09-15 20:26:56,343 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-15 20:26:56,343 INFO L158 Benchmark]: Toolchain (without parser) took 61007.24ms. Allocated memory was 65.0MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 33.8MB in the beginning and 757.3MB in the end (delta: -723.6MB). Peak memory consumption was 426.7MB. Max. memory is 16.1GB. [2024-09-15 20:26:56,343 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 44.0MB. Free memory was 21.1MB in the beginning and 21.1MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:26:56,344 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 44.0MB. Free memory was 27.7MB in the beginning and 27.7MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:26:56,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.70ms. Allocated memory is still 65.0MB. Free memory was 33.6MB in the beginning and 40.3MB in the end (delta: -6.7MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2024-09-15 20:26:56,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.14ms. Allocated memory is still 65.0MB. Free memory was 40.3MB in the beginning and 38.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:26:56,344 INFO L158 Benchmark]: Boogie Preprocessor took 47.47ms. Allocated memory is still 65.0MB. Free memory was 38.8MB in the beginning and 37.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:26:56,345 INFO L158 Benchmark]: RCFGBuilder took 321.39ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 37.0MB in the beginning and 56.2MB in the end (delta: -19.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-09-15 20:26:56,345 INFO L158 Benchmark]: TraceAbstraction took 60334.66ms. Allocated memory was 79.7MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 55.5MB in the beginning and 757.3MB in the end (delta: -701.8MB). Peak memory consumption was 432.5MB. Max. memory is 16.1GB. [2024-09-15 20:26:56,346 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.21ms. Allocated memory is still 44.0MB. Free memory was 21.1MB in the beginning and 21.1MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 44.0MB. Free memory was 27.7MB in the beginning and 27.7MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.70ms. Allocated memory is still 65.0MB. Free memory was 33.6MB in the beginning and 40.3MB in the end (delta: -6.7MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.14ms. Allocated memory is still 65.0MB. Free memory was 40.3MB in the beginning and 38.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.47ms. Allocated memory is still 65.0MB. Free memory was 38.8MB in the beginning and 37.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 321.39ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 37.0MB in the beginning and 56.2MB in the end (delta: -19.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * TraceAbstraction took 60334.66ms. Allocated memory was 79.7MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 55.5MB in the beginning and 757.3MB in the end (delta: -701.8MB). Peak memory consumption was 432.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 69]: 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 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.3s, OverallIterations: 12, TraceHistogramMax: 46, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 406 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 399 mSDsluCounter, 1386 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1244 mSDsCounter, 285 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3009 IncrementalHoareTripleChecker+Invalid, 3296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 285 mSolverCounterUnsat, 142 mSDtfsCounter, 3009 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3276 GetRequests, 2790 SyntacticMatches, 26 SemanticMatches, 460 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6816 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=10, InterpolantAutomatonStates: 200, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 44.3s InterpolantComputationTime, 3023 NumberOfCodeBlocks, 2863 NumberOfCodeBlocksAsserted, 76 NumberOfCheckSat, 3886 ConstructedInterpolants, 34 QuantifiedInterpolants, 13535 SizeOfPredicates, 147 NumberOfNonLiveVariables, 5672 ConjunctsInSsa, 792 ConjunctsInUnsatCore, 29 InterpolantComputations, 2 PerfectInterpolantSequences, 43359/46398 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 RESULT: Ultimate proved your program to be correct! [2024-09-15 20:26:56,378 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...