./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/veris.c_OpenSER_cases1_stripFullBoth_arr.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 04d6fb36 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReachWitnessValidation.xml -i ../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i ../results/automizer-verification-files/SV-COMP24_unreach-call/veris.c_OpenSER_cases1_stripFullBoth_arr.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m [2024-09-15 20:09:52,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:09:53,016 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-15 20:09:53,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:09:53,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:09:53,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:09:53,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:09:53,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:09:53,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:09:53,058 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:09:53,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:09:53,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:09:53,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:09:53,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:09:53,062 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:09:53,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:09:53,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:09:53,063 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:09:53,063 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 20:09:53,063 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:09:53,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:09:53,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:09:53,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:09:53,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:09:53,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:09:53,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:09:53,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:09:53,067 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:09:53,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:09:53,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:09:53,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:09:53,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:09:53,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:09:53,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:09:53,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:09:53,079 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:09:53,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 20:09:53,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 20:09:53,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:09:53,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:09:53,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:09:53,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:09:53,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:09:53,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:09:53,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:09:53,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:09:53,432 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:09:53,433 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:09:53,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/veris.c_OpenSER_cases1_stripFullBoth_arr.yml/witness-2.1.yml [2024-09-15 20:09:53,482 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:09:53,482 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:09:53,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2024-09-15 20:09:55,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:09:55,313 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:09:55,313 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2024-09-15 20:09:55,334 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/94aed84c9/7183daf536b74903a59c11da02f278d2/FLAG548975a64 [2024-09-15 20:09:55,351 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/94aed84c9/7183daf536b74903a59c11da02f278d2 [2024-09-15 20:09:55,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:09:55,354 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-15 20:09:55,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:09:55,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:09:55,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:09:55,367 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 08:09:53" (1/2) ... [2024-09-15 20:09:55,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7f4ed2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:55, skipping insertion in model container [2024-09-15 20:09:55,370 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 08:09:53" (1/2) ... [2024-09-15 20:09:55,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22e189eb and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:09:55, skipping insertion in model container [2024-09-15 20:09:55,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:09:55" (2/2) ... [2024-09-15 20:09:55,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7f4ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55, skipping insertion in model container [2024-09-15 20:09:55,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:09:55" (2/2) ... [2024-09-15 20:09:55,380 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-15 20:09:55,383 INFO L1541 ArrayList]: Function contract at [L14]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-15 20:09:55,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:09:55,568 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/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i[878,891] [2024-09-15 20:09:55,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:09:55,644 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-15 20:09:55,680 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/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i[878,891] [2024-09-15 20:09:55,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:09:55,726 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:09:55,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55 WrapperNode [2024-09-15 20:09:55,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:09:55,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-15 20:09:55,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-15 20:09:55,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-15 20:09:55,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,773 INFO L138 Inliner]: procedures = 42, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 151 [2024-09-15 20:09:55,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-15 20:09:55,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:09:55,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:09:55,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:09:55,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,817 INFO L175 MemorySlicer]: Split 13 memory accesses to 3 slices as follows [2, 10, 1]. 77 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 2, 1]. [2024-09-15 20:09:55,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:09:55,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:09:55,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:09:55,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:09:55,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (1/1) ... [2024-09-15 20:09:55,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:09:55,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:09:55,887 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 20:09:55,890 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 20:09:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:09:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-15 20:09:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-15 20:09:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-15 20:09:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-09-15 20:09:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-15 20:09:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-15 20:09:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-09-15 20:09:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-15 20:09:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-15 20:09:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-09-15 20:09:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:09:55,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:09:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-15 20:09:56,046 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:09:56,048 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:09:56,348 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-09-15 20:09:56,348 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:09:56,394 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:09:56,396 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-15 20:09:56,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:09:56 BoogieIcfgContainer [2024-09-15 20:09:56,397 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:09:56,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-15 20:09:56,400 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-15 20:09:56,404 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-15 20:09:56,404 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 08:09:53" (1/4) ... [2024-09-15 20:09:56,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0ee838 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:09:56, skipping insertion in model container [2024-09-15 20:09:56,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:09:55" (2/4) ... [2024-09-15 20:09:56,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0ee838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:09:56, skipping insertion in model container [2024-09-15 20:09:56,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:09:55" (3/4) ... [2024-09-15 20:09:56,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0ee838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:09:56, skipping insertion in model container [2024-09-15 20:09:56,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:09:56" (4/4) ... [2024-09-15 20:09:56,408 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2024-09-15 20:09:56,425 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-15 20:09:56,425 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-15 20:09:56,475 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-15 20:09:56,484 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;@65981b67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-15 20:09:56,484 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-15 20:09:56,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 33 states have internal predecessors, (52), 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 20:09:56,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-15 20:09:56,496 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:09:56,497 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:09:56,498 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] === [2024-09-15 20:09:56,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:09:56,505 INFO L85 PathProgramCache]: Analyzing trace with hash -328869555, now seen corresponding path program 1 times [2024-09-15 20:09:56,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:09:56,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261071561] [2024-09-15 20:09:56,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:09:56,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:09:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:09:56,814 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 20:09:56,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:09:56,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261071561] [2024-09-15 20:09:56,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261071561] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:09:56,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:09:56,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-15 20:09:56,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341902370] [2024-09-15 20:09:56,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:09:56,824 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-15 20:09:56,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:09:56,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-15 20:09:56,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:09:56,859 INFO L87 Difference]: Start difference. First operand has 34 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 33 states have internal predecessors, (52), 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) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 20:09:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:09:56,899 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2024-09-15 20:09:56,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-15 20:09:56,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) Word has length 17 [2024-09-15 20:09:56,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:09:56,910 INFO L225 Difference]: With dead ends: 35 [2024-09-15 20:09:56,910 INFO L226 Difference]: Without dead ends: 32 [2024-09-15 20:09:56,912 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:09:56,919 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:09:56,920 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:09:56,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-15 20:09:56,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-09-15 20:09:56,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 31 states have internal predecessors, (42), 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 20:09:56,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2024-09-15 20:09:56,946 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 17 [2024-09-15 20:09:56,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:09:56,947 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2024-09-15 20:09:56,947 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 20:09:56,947 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2024-09-15 20:09:56,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-15 20:09:56,948 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:09:56,948 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:09:56,949 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-15 20:09:56,949 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] === [2024-09-15 20:09:56,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:09:56,950 INFO L85 PathProgramCache]: Analyzing trace with hash -490909722, now seen corresponding path program 1 times [2024-09-15 20:09:56,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:09:56,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932876829] [2024-09-15 20:09:56,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:09:56,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:09:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:09:57,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:09:57,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:09:57,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932876829] [2024-09-15 20:09:57,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932876829] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:09:57,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889368489] [2024-09-15 20:09:57,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:09:57,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:09:57,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:09:57,075 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 20:09:57,078 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 20:09:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:09:57,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-09-15 20:09:57,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:09:57,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-15 20:09:57,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-15 20:09:57,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889368489] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:09:57,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-15 20:09:57,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-09-15 20:09:57,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817052966] [2024-09-15 20:09:57,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:09:57,198 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-15 20:09:57,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:09:57,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-15 20:09:57,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-15 20:09:57,203 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 20:09:57,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:09:57,226 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2024-09-15 20:09:57,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-15 20:09:57,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) Word has length 22 [2024-09-15 20:09:57,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:09:57,228 INFO L225 Difference]: With dead ends: 33 [2024-09-15 20:09:57,228 INFO L226 Difference]: Without dead ends: 33 [2024-09-15 20:09:57,228 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-15 20:09:57,229 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:09:57,230 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:09:57,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-09-15 20:09:57,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-09-15 20:09:57,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 32 states have internal predecessors, (43), 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 20:09:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2024-09-15 20:09:57,240 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 22 [2024-09-15 20:09:57,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:09:57,240 INFO L474 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2024-09-15 20:09:57,240 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 20:09:57,241 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-09-15 20:09:57,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-15 20:09:57,242 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:09:57,242 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:09:57,257 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 20:09:57,447 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:09:57,448 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] === [2024-09-15 20:09:57,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:09:57,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1502026972, now seen corresponding path program 1 times [2024-09-15 20:09:57,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:09:57,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071015418] [2024-09-15 20:09:57,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:09:57,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:09:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:09:57,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:09:57,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:09:57,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071015418] [2024-09-15 20:09:57,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071015418] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:09:57,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252680734] [2024-09-15 20:09:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:09:57,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:09:57,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:09:57,583 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 20:09:57,590 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 20:09:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:09:57,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-15 20:09:57,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:09:57,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-15 20:09:57,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-15 20:09:57,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252680734] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:09:57,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-15 20:09:57,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2024-09-15 20:09:57,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617455952] [2024-09-15 20:09:57,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:09:57,776 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-15 20:09:57,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:09:57,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-15 20:09:57,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-15 20:09:57,778 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 20:09:57,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:09:57,867 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-09-15 20:09:57,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-15 20:09:57,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) Word has length 22 [2024-09-15 20:09:57,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:09:57,868 INFO L225 Difference]: With dead ends: 47 [2024-09-15 20:09:57,869 INFO L226 Difference]: Without dead ends: 47 [2024-09-15 20:09:57,869 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-09-15 20:09:57,870 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:09:57,870 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 102 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:09:57,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-09-15 20:09:57,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 37. [2024-09-15 20:09:57,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 36 states have internal predecessors, (47), 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 20:09:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2024-09-15 20:09:57,875 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 22 [2024-09-15 20:09:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:09:57,875 INFO L474 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2024-09-15 20:09:57,876 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 20:09:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2024-09-15 20:09:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-15 20:09:57,876 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:09:57,877 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:09:57,892 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-15 20:09:58,077 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:09:58,078 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] === [2024-09-15 20:09:58,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:09:58,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1500120348, now seen corresponding path program 1 times [2024-09-15 20:09:58,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:09:58,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182403177] [2024-09-15 20:09:58,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:09:58,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:09:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:09:58,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:09:58,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:09:58,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182403177] [2024-09-15 20:09:58,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182403177] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:09:58,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775648590] [2024-09-15 20:09:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:09:58,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:09:58,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:09:58,166 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 20:09:58,168 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 20:09:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:09:58,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-15 20:09:58,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:09:58,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:09:58,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:09:58,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:09:58,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775648590] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:09:58,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:09:58,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-15 20:09:58,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334618629] [2024-09-15 20:09:58,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:09:58,308 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-15 20:09:58,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:09:58,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-15 20:09:58,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-15 20:09:58,311 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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 20:09:58,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:09:58,337 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2024-09-15 20:09:58,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-15 20:09:58,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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) Word has length 22 [2024-09-15 20:09:58,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:09:58,339 INFO L225 Difference]: With dead ends: 40 [2024-09-15 20:09:58,340 INFO L226 Difference]: Without dead ends: 40 [2024-09-15 20:09:58,340 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-15 20:09:58,341 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:09:58,343 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:09:58,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-09-15 20:09:58,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-09-15 20:09:58,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 39 states have internal predecessors, (50), 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 20:09:58,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2024-09-15 20:09:58,347 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 22 [2024-09-15 20:09:58,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:09:58,348 INFO L474 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2024-09-15 20:09:58,348 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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 20:09:58,348 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2024-09-15 20:09:58,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-15 20:09:58,349 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:09:58,349 INFO L216 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:09:58,363 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 20:09:58,549 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:09:58,550 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] === [2024-09-15 20:09:58,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:09:58,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1645402484, now seen corresponding path program 2 times [2024-09-15 20:09:58,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:09:58,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350666045] [2024-09-15 20:09:58,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:09:58,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:09:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:09:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-15 20:09:58,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:09:58,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350666045] [2024-09-15 20:09:58,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350666045] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:09:58,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:09:58,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-15 20:09:58,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797151988] [2024-09-15 20:09:58,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:09:58,733 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-15 20:09:58,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:09:58,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-15 20:09:58,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:09:58,734 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 20:09:58,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:09:58,749 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2024-09-15 20:09:58,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-15 20:09:58,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) Word has length 25 [2024-09-15 20:09:58,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:09:58,751 INFO L225 Difference]: With dead ends: 38 [2024-09-15 20:09:58,751 INFO L226 Difference]: Without dead ends: 38 [2024-09-15 20:09:58,751 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:09:58,752 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 4 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:09:58,752 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 63 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:09:58,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-09-15 20:09:58,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-09-15 20:09:58,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 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 20:09:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2024-09-15 20:09:58,756 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 25 [2024-09-15 20:09:58,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:09:58,756 INFO L474 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2024-09-15 20:09:58,756 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 20:09:58,756 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2024-09-15 20:09:58,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-15 20:09:58,757 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:09:58,757 INFO L216 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:09:58,757 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-15 20:09:58,758 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] === [2024-09-15 20:09:58,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:09:58,758 INFO L85 PathProgramCache]: Analyzing trace with hash 683826647, now seen corresponding path program 1 times [2024-09-15 20:09:58,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:09:58,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80376213] [2024-09-15 20:09:58,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:09:58,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:09:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:09:58,835 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-15 20:09:58,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:09:58,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80376213] [2024-09-15 20:09:58,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80376213] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:09:58,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:09:58,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-15 20:09:58,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318640253] [2024-09-15 20:09:58,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:09:58,839 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-15 20:09:58,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:09:58,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-15 20:09:58,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:09:58,840 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 20:09:58,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:09:58,854 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2024-09-15 20:09:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-15 20:09:58,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) Word has length 27 [2024-09-15 20:09:58,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:09:58,857 INFO L225 Difference]: With dead ends: 36 [2024-09-15 20:09:58,857 INFO L226 Difference]: Without dead ends: 0 [2024-09-15 20:09:58,857 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:09:58,858 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:09:58,858 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:09:58,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-15 20:09:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-15 20:09:58,861 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 20:09:58,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-15 20:09:58,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2024-09-15 20:09:58,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:09:58,862 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-15 20:09:58,862 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 20:09:58,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-15 20:09:58,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-15 20:09:58,865 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION (2 of 3 remaining) [2024-09-15 20:09:58,867 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-09-15 20:09:58,867 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (0 of 3 remaining) [2024-09-15 20:09:58,867 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-15 20:09:58,870 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-09-15 20:09:58,872 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-15 20:09:58,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:09:58 BoogieIcfgContainer [2024-09-15 20:09:58,875 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-15 20:09:58,877 INFO L158 Benchmark]: Toolchain (without parser) took 3521.87ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 47.7MB in the beginning and 52.6MB in the end (delta: -4.9MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-09-15 20:09:58,877 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 67.1MB. Free memory was 42.0MB in the beginning and 42.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:09:58,877 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory was 40.0MB in the beginning and 39.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:09:58,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.73ms. Allocated memory is still 67.1MB. Free memory was 47.5MB in the beginning and 33.0MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-15 20:09:58,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.04ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 31.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:09:58,878 INFO L158 Benchmark]: Boogie Preprocessor took 67.17ms. Allocated memory is still 67.1MB. Free memory was 31.1MB in the beginning and 28.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:09:58,878 INFO L158 Benchmark]: RCFGBuilder took 555.23ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 28.6MB in the beginning and 63.1MB in the end (delta: -34.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-15 20:09:58,879 INFO L158 Benchmark]: TraceAbstraction took 2475.77ms. Allocated memory is still 100.7MB. Free memory was 62.2MB in the beginning and 52.6MB in the end (delta: 9.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-09-15 20:09:58,883 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 0.18ms. Allocated memory is still 67.1MB. Free memory was 42.0MB in the beginning and 42.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory was 40.0MB in the beginning and 39.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.73ms. Allocated memory is still 67.1MB. Free memory was 47.5MB in the beginning and 33.0MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.04ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 31.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.17ms. Allocated memory is still 67.1MB. Free memory was 31.1MB in the beginning and 28.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.23ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 28.6MB in the beginning and 63.1MB in the end (delta: -34.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2475.77ms. Allocated memory is still 100.7MB. Free memory was 62.2MB in the beginning and 52.6MB in the end (delta: 9.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 16]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 14]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 475 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 270 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 205 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 257 SizeOfPredicates, 2 NumberOfNonLiveVariables, 335 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 22/27 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-15 20:09:58,913 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE