./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/array-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/array-1.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5189fb62 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/array-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/array-1.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-dev-5189fb6-m [2024-09-13 05:11:54,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:11:54,592 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 05:11:54,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:11:54,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:11:54,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:11:54,621 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:11:54,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:11:54,622 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:11:54,622 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:11:54,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:11:54,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:11:54,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:11:54,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:11:54,624 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:11:54,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:11:54,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:11:54,627 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:11:54,628 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 05:11:54,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:11:54,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:11:54,631 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:11:54,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:11:54,631 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:11:54,632 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:11:54,632 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:11:54,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:11:54,632 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:11:54,633 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:11:54,633 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:11:54,633 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:11:54,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:11:54,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:11:54,634 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:11:54,634 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:11:54,634 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:11:54,634 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 05:11:54,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 05:11:54,635 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:11:54,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:11:54,635 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:11:54,636 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:11:54,636 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:11:54,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:11:54,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:11:54,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:11:54,891 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:11:54,892 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:11:54,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/array-1.yml/witness-2.1.yml [2024-09-13 05:11:54,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:11:54,966 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:11:54,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops/array-1.c [2024-09-13 05:11:56,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:11:56,511 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:11:56,511 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/array-1.c [2024-09-13 05:11:56,517 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/eda7df58e/3185235674b041ad81b1c880c35bd90a/FLAGd9338a294 [2024-09-13 05:11:56,908 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/eda7df58e/3185235674b041ad81b1c880c35bd90a [2024-09-13 05:11:56,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:11:56,911 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-13 05:11:56,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:11:56,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:11:56,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:11:56,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:11:54" (1/2) ... [2024-09-13 05:11:56,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fe006c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:11:56, skipping insertion in model container [2024-09-13 05:11:56,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:11:54" (1/2) ... [2024-09-13 05:11:56,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58e08ee and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:11:56, skipping insertion in model container [2024-09-13 05:11:56,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:11:56" (2/2) ... [2024-09-13 05:11:56,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fe006c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:56, skipping insertion in model container [2024-09-13 05:11:56,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:11:56" (2/2) ... [2024-09-13 05:11:56,929 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:11:56,930 INFO L1541 ArrayList]: Loop invariant at [L21-L26] (((j == 1) && (SIZE == 1)) || ((j == 0) && (SIZE == 1))) [2024-09-13 05:11:56,930 INFO L1541 ArrayList]: Function contract at [L5]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-13 05:11:56,943 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:11:57,105 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/array-1.c[319,332] [2024-09-13 05:11:57,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:11:57,155 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-13 05:11:57,187 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/array-1.c[319,332] Start Parsing Local [2024-09-13 05:11:57,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:11:57,208 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:11:57,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57 WrapperNode [2024-09-13 05:11:57,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:11:57,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 05:11:57,210 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 05:11:57,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 05:11:57,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,244 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2024-09-13 05:11:57,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 05:11:57,247 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:11:57,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:11:57,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:11:57,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,284 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-09-13 05:11:57,284 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,285 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:11:57,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:11:57,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:11:57,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:11:57,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:11:57,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:11:57,333 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) [2024-09-13 05:11:57,338 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 [2024-09-13 05:11:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:11:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 05:11:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-13 05:11:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-13 05:11:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-13 05:11:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-13 05:11:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:11:57,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:11:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-13 05:11:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-13 05:11:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 05:11:57,438 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:11:57,440 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:11:57,568 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-09-13 05:11:57,569 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:11:57,596 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:11:57,596 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-13 05:11:57,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:11:57 BoogieIcfgContainer [2024-09-13 05:11:57,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:11:57,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 05:11:57,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 05:11:57,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 05:11:57,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:11:54" (1/4) ... [2024-09-13 05:11:57,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5caac6b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:11:57, skipping insertion in model container [2024-09-13 05:11:57,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 05:11:56" (2/4) ... [2024-09-13 05:11:57,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5caac6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:11:57, skipping insertion in model container [2024-09-13 05:11:57,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (3/4) ... [2024-09-13 05:11:57,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5caac6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:11:57, skipping insertion in model container [2024-09-13 05:11:57,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:11:57" (4/4) ... [2024-09-13 05:11:57,610 INFO L112 eAbstractionObserver]: Analyzing ICFG array-1.c [2024-09-13 05:11:57,624 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 05:11:57,624 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-13 05:11:57,661 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 05:11:57,668 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;@184d8c33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 05:11:57,669 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-13 05:11:57,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.8) internal successors, (18), 14 states have internal predecessors, (18), 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) [2024-09-13 05:11:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-09-13 05:11:57,676 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:11:57,677 INFO L216 NwaCegarLoop]: trace histogram [1, 1] [2024-09-13 05:11:57,677 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:11:57,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:11:57,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2267, now seen corresponding path program 1 times [2024-09-13 05:11:57,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:11:57,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671913424] [2024-09-13 05:11:57,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:11:57,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:11:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:11:58,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:11:58,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:11:58,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671913424] [2024-09-13 05:11:58,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671913424] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:11:58,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:11:58,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-13 05:11:58,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215496648] [2024-09-13 05:11:58,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:11:58,050 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 05:11:58,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:11:58,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 05:11:58,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:11:58,091 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.8) internal successors, (18), 14 states have internal predecessors, (18), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-09-13 05:11:58,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:11:58,190 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2024-09-13 05:11:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 05:11:58,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-09-13 05:11:58,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:11:58,197 INFO L225 Difference]: With dead ends: 19 [2024-09-13 05:11:58,197 INFO L226 Difference]: Without dead ends: 18 [2024-09-13 05:11:58,199 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:11:58,202 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 05:11:58,203 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 05:11:58,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-09-13 05:11:58,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2024-09-13 05:11:58,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 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) [2024-09-13 05:11:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-09-13 05:11:58,227 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 2 [2024-09-13 05:11:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:11:58,227 INFO L474 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-09-13 05:11:58,228 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-09-13 05:11:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-09-13 05:11:58,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-09-13 05:11:58,228 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:11:58,229 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-09-13 05:11:58,229 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 05:11:58,229 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:11:58,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:11:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2094920050, now seen corresponding path program 1 times [2024-09-13 05:11:58,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:11:58,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831537789] [2024-09-13 05:11:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:11:58,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:11:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:11:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:11:58,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:11:58,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831537789] [2024-09-13 05:11:58,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831537789] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 05:11:58,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844008157] [2024-09-13 05:11:58,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:11:58,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:11:58,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:11:58,537 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) [2024-09-13 05:11:58,539 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-13 05:11:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:11:58,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-13 05:11:58,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 05:11:58,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:11:58,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 05:11:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:11:58,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844008157] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 05:11:58,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 05:11:58,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 3] total 8 [2024-09-13 05:11:58,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605074330] [2024-09-13 05:11:58,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 05:11:58,828 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-13 05:11:58,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:11:58,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-13 05:11:58,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-13 05:11:58,830 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2024-09-13 05:11:58,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:11:58,872 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-09-13 05:11:58,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:11:58,873 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 6 [2024-09-13 05:11:58,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:11:58,873 INFO L225 Difference]: With dead ends: 15 [2024-09-13 05:11:58,873 INFO L226 Difference]: Without dead ends: 15 [2024-09-13 05:11:58,874 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-13 05:11:58,875 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:11:58,875 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 45 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:11:58,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-09-13 05:11:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-09-13 05:11:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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) [2024-09-13 05:11:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-09-13 05:11:58,879 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2024-09-13 05:11:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:11:58,879 INFO L474 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-09-13 05:11:58,880 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2024-09-13 05:11:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-09-13 05:11:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-13 05:11:58,880 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:11:58,880 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:11:58,898 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-13 05:11:59,084 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 [2024-09-13 05:11:59,085 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:11:59,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:11:59,086 INFO L85 PathProgramCache]: Analyzing trace with hash -406528488, now seen corresponding path program 1 times [2024-09-13 05:11:59,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:11:59,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929768570] [2024-09-13 05:11:59,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:11:59,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:11:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:11:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:11:59,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:11:59,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929768570] [2024-09-13 05:11:59,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929768570] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 05:11:59,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217343553] [2024-09-13 05:11:59,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:11:59,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:11:59,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:11:59,759 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) [2024-09-13 05:11:59,761 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-13 05:11:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:11:59,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-13 05:11:59,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 05:11:59,868 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 [2024-09-13 05:11:59,990 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 17 treesize of output 9 [2024-09-13 05:11:59,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:11:59,997 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 05:12:00,194 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 18 treesize of output 16 [2024-09-13 05:12:00,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 18 [2024-09-13 05:12:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:12:00,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217343553] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-13 05:12:00,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-13 05:12:00,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 6] total 17 [2024-09-13 05:12:00,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135061467] [2024-09-13 05:12:00,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:12:00,213 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-13 05:12:00,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:12:00,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-13 05:12:00,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-09-13 05:12:00,215 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-09-13 05:12:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:12:00,359 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-09-13 05:12:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-13 05:12:00,359 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 9 [2024-09-13 05:12:00,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:12:00,360 INFO L225 Difference]: With dead ends: 16 [2024-09-13 05:12:00,360 INFO L226 Difference]: Without dead ends: 15 [2024-09-13 05:12:00,360 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2024-09-13 05:12:00,361 INFO L434 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:12:00,362 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:12:00,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-09-13 05:12:00,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2024-09-13 05:12:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-09-13 05:12:00,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-09-13 05:12:00,365 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2024-09-13 05:12:00,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:12:00,366 INFO L474 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-09-13 05:12:00,367 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-09-13 05:12:00,367 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-09-13 05:12:00,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-13 05:12:00,367 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:12:00,367 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:12:00,384 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-13 05:12:00,567 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 [2024-09-13 05:12:00,568 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:12:00,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:12:00,569 INFO L85 PathProgramCache]: Analyzing trace with hash 168148827, now seen corresponding path program 1 times [2024-09-13 05:12:00,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:12:00,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724545024] [2024-09-13 05:12:00,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:12:00,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:12:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:12:00,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-13 05:12:00,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:12:00,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724545024] [2024-09-13 05:12:00,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724545024] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:12:00,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:12:00,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:12:00,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797621804] [2024-09-13 05:12:00,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:12:00,608 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 05:12:00,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:12:00,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 05:12:00,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:12:00,609 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-09-13 05:12:00,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:12:00,614 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2024-09-13 05:12:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 05:12:00,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 11 [2024-09-13 05:12:00,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:12:00,615 INFO L225 Difference]: With dead ends: 10 [2024-09-13 05:12:00,615 INFO L226 Difference]: Without dead ends: 0 [2024-09-13 05:12:00,615 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:12:00,616 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:12:00,617 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:12:00,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-13 05:12:00,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-13 05:12:00,619 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) [2024-09-13 05:12:00,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-13 05:12:00,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-09-13 05:12:00,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:12:00,622 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-13 05:12:00,622 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-09-13 05:12:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-13 05:12:00,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-13 05:12:00,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-13 05:12:00,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION (2 of 4 remaining) [2024-09-13 05:12:00,627 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-09-13 05:12:00,627 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONPOST_CONDITION (0 of 4 remaining) [2024-09-13 05:12:00,627 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-13 05:12:00,632 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-09-13 05:12:00,634 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 05:12:00,636 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-09-13 05:12:00,636 INFO L470 ceAbstractionStarter]: WitnessConsidered=1 [2024-09-13 05:12:00,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 05:12:00 BoogieIcfgContainer [2024-09-13 05:12:00,638 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 05:12:00,638 INFO L158 Benchmark]: Toolchain (without parser) took 3727.57ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 69.9MB in the beginning and 136.6MB in the end (delta: -66.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:12:00,639 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 140.5MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:12:00,641 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 140.5MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:12:00,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.92ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 69.8MB in the beginning and 160.9MB in the end (delta: -91.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-09-13 05:12:00,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.22ms. Allocated memory is still 190.8MB. Free memory was 160.9MB in the beginning and 159.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 05:12:00,641 INFO L158 Benchmark]: Boogie Preprocessor took 49.64ms. Allocated memory is still 190.8MB. Free memory was 159.8MB in the beginning and 157.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 05:12:00,642 INFO L158 Benchmark]: RCFGBuilder took 297.28ms. Allocated memory is still 190.8MB. Free memory was 157.7MB in the beginning and 144.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 05:12:00,642 INFO L158 Benchmark]: TraceAbstraction took 3038.43ms. Allocated memory is still 190.8MB. Free memory was 143.0MB in the beginning and 136.6MB in the end (delta: 6.5MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2024-09-13 05:12:00,644 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 0.20ms. Allocated memory is still 140.5MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.08ms. Allocated memory is still 140.5MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.92ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 69.8MB in the beginning and 160.9MB in the end (delta: -91.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.22ms. Allocated memory is still 190.8MB. Free memory was 160.9MB in the beginning and 159.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.64ms. Allocated memory is still 190.8MB. Free memory was 159.8MB in the beginning and 157.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.28ms. Allocated memory is still 190.8MB. Free memory was 157.7MB in the beginning and 144.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3038.43ms. Allocated memory is still 190.8MB. Free memory was 143.0MB in the beginning and 136.6MB in the end (delta: 6.5MB). Peak memory consumption was 5.4MB. 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: 21]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 5]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 7]: 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: 5]: 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, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 30 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=1, InterpolantAutomatonStates: 20, 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 6 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 5/11 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-13 05:12:00,671 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE