./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/geo1-ll_valuebound20.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/nla-digbench-scaling/geo1-ll_valuebound20.c ../results/automizer-verification-files/SV-COMP24_unreach-call/geo1-ll_valuebound20.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 20:15:09,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:15:09,588 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-15 20:15:09,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:15:09,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:15:09,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:15:09,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:15:09,613 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:15:09,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:15:09,614 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:15:09,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:15:09,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:15:09,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:15:09,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:15:09,615 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:15:09,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:15:09,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:15:09,617 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:15:09,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 20:15:09,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:15:09,618 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:15:09,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:15:09,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:15:09,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:15:09,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:15:09,619 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:15:09,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:15:09,619 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:15:09,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:15:09,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:15:09,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:15:09,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:15:09,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:15:09,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:15:09,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:15:09,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:15:09,621 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 20:15:09,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 20:15:09,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:15:09,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:15:09,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:15:09,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:15:09,626 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:15:09,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:15:09,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:15:09,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:15:09,890 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:15:09,890 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:15:09,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c [2024-09-15 20:15:11,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:15:11,234 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:15:11,235 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c [2024-09-15 20:15:11,242 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/8691b1974/6494ae88be844aeca9535fabcbfd029e/FLAGa016b1daa [2024-09-15 20:15:11,255 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/8691b1974/6494ae88be844aeca9535fabcbfd029e [2024-09-15 20:15:11,257 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:15:11,259 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:15:11,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/geo1-ll_valuebound20.yml/witness-2.1.yml [2024-09-15 20:15:11,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:15:11,316 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-15 20:15:11,317 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:15:11,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:15:11,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:15:11,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:15:11" (1/2) ... [2024-09-15 20:15:11,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e27c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:15:11, skipping insertion in model container [2024-09-15 20:15:11,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:15:11" (1/2) ... [2024-09-15 20:15:11,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24eb50a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:15:11, skipping insertion in model container [2024-09-15 20:15:11,329 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 08:15:11" (2/2) ... [2024-09-15 20:15:11,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e27c6a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11, skipping insertion in model container [2024-09-15 20:15:11,330 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 08:15:11" (2/2) ... [2024-09-15 20:15:11,335 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-15 20:15:11,337 INFO L1541 ArrayList]: Loop invariant at [L36-L46] (((z <= 20) && (1 <= z)) && ((((((z * x) + ((unsigned __int128) 18446744073709551615U * x)) + ((unsigned __int128) 18446744073709551615U * y)) + 1) % ((unsigned __int128) 1 << 64)) == 0)) [2024-09-15 20:15:11,337 INFO L1541 ArrayList]: Function contract at [L12]: requires null, ensures (\old(cond) != 0) [2024-09-15 20:15:11,337 INFO L1541 ArrayList]: Function contract at [L15]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-15 20:15:11,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:15:11,474 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c[545,558] [2024-09-15 20:15:11,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:15:11,499 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-15 20:15:11,530 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound20.c[545,558] Start Parsing Local [2024-09-15 20:15:11,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:15:11,553 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:15:11,554 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11 WrapperNode [2024-09-15 20:15:11,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:15:11,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-15 20:15:11,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-15 20:15:11,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-15 20:15:11,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,578 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-09-15 20:15:11,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-15 20:15:11,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:15:11,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:15:11,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:15:11,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,592 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,598 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure assume_abort_if_not is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-15 20:15:11,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:15:11,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:15:11,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:15:11,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:15:11,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (1/1) ... [2024-09-15 20:15:11,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:15:11,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:15:11,635 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 20:15:11,639 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 20:15:11,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:15:11,676 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-15 20:15:11,676 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-15 20:15:11,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-15 20:15:11,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:15:11,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:15:11,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-15 20:15:11,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-15 20:15:11,727 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:15:11,729 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:15:11,865 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-15 20:15:11,887 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-09-15 20:15:11,887 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:15:11,910 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:15:11,911 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-15 20:15:11,911 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:15:11 BoogieIcfgContainer [2024-09-15 20:15:11,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:15:11,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-15 20:15:11,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-15 20:15:11,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-15 20:15:11,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:15:11" (1/4) ... [2024-09-15 20:15:11,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf47bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:15:11, skipping insertion in model container [2024-09-15 20:15:11,918 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 08:15:11" (2/4) ... [2024-09-15 20:15:11,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf47bad and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:15:11, skipping insertion in model container [2024-09-15 20:15:11,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:15:11" (3/4) ... [2024-09-15 20:15:11,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf47bad and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:15:11, skipping insertion in model container [2024-09-15 20:15:11,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:15:11" (4/4) ... [2024-09-15 20:15:11,920 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound20.c [2024-09-15 20:15:11,933 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-15 20:15:11,933 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-15 20:15:11,977 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-15 20:15:11,985 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;@48273272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-15 20:15:11,985 INFO L337 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-09-15 20:15:11,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-15 20:15:11,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-09-15 20:15:11,995 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:15:11,996 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-09-15 20:15:11,996 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 3 more)] === [2024-09-15 20:15:12,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:15:12,001 INFO L85 PathProgramCache]: Analyzing trace with hash 96917174, now seen corresponding path program 1 times [2024-09-15 20:15:12,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:15:12,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639585998] [2024-09-15 20:15:12,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:15:12,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:15:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:12,123 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 20:15:12,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:15:12,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639585998] [2024-09-15 20:15:12,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639585998] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:15:12,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:15:12,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-15 20:15:12,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704265805] [2024-09-15 20:15:12,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:15:12,130 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-15 20:15:12,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:15:12,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-15 20:15:12,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-15 20:15:12,157 INFO L87 Difference]: Start difference. First operand has 30 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:15:12,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:15:12,183 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-09-15 20:15:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-15 20:15:12,186 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-09-15 20:15:12,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:15:12,190 INFO L225 Difference]: With dead ends: 30 [2024-09-15 20:15:12,191 INFO L226 Difference]: Without dead ends: 28 [2024-09-15 20:15:12,193 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-15 20:15:12,196 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:15:12,197 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:15:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-09-15 20:15:12,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-09-15 20:15:12,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 16 states have (on average 1.3125) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-15 20:15:12,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-09-15 20:15:12,232 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 5 [2024-09-15 20:15:12,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:15:12,232 INFO L474 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-09-15 20:15:12,232 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:15:12,233 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-09-15 20:15:12,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-09-15 20:15:12,234 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:15:12,234 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-09-15 20:15:12,234 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-15 20:15:12,234 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 3 more)] === [2024-09-15 20:15:12,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:15:12,235 INFO L85 PathProgramCache]: Analyzing trace with hash 96917236, now seen corresponding path program 1 times [2024-09-15 20:15:12,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:15:12,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647157638] [2024-09-15 20:15:12,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:15:12,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:15:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:12,330 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 20:15:12,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:15:12,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647157638] [2024-09-15 20:15:12,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647157638] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:15:12,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:15:12,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-15 20:15:12,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798981695] [2024-09-15 20:15:12,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:15:12,334 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-15 20:15:12,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:15:12,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-15 20:15:12,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-15 20:15:12,336 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:15:12,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:15:12,380 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2024-09-15 20:15:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-15 20:15:12,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-09-15 20:15:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:15:12,381 INFO L225 Difference]: With dead ends: 27 [2024-09-15 20:15:12,381 INFO L226 Difference]: Without dead ends: 27 [2024-09-15 20:15:12,382 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-15 20:15:12,382 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:15:12,383 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 59 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:15:12,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-09-15 20:15:12,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-09-15 20:15:12,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-15 20:15:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-09-15 20:15:12,391 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 5 [2024-09-15 20:15:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:15:12,391 INFO L474 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-09-15 20:15:12,391 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:15:12,391 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-09-15 20:15:12,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-15 20:15:12,393 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:15:12,393 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:15:12,393 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-15 20:15:12,393 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 3 more)] === [2024-09-15 20:15:12,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:15:12,397 INFO L85 PathProgramCache]: Analyzing trace with hash -557282657, now seen corresponding path program 1 times [2024-09-15 20:15:12,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:15:12,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032767731] [2024-09-15 20:15:12,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:15:12,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:15:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-15 20:15:12,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1749051727] [2024-09-15 20:15:12,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:15:12,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:15:12,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:15:12,439 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 20:15:12,441 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 20:15:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:12,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-15 20:15:12,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:15:12,612 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-15 20:15:12,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:15:12,766 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-15 20:15:12,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:15:12,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032767731] [2024-09-15 20:15:12,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-15 20:15:12,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749051727] [2024-09-15 20:15:12,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749051727] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:15:12,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-15 20:15:12,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-09-15 20:15:12,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350808760] [2024-09-15 20:15:12,771 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-15 20:15:12,772 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-15 20:15:12,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:15:12,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-15 20:15:12,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-15 20:15:12,773 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-15 20:15:14,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-15 20:15:14,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:15:14,708 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2024-09-15 20:15:14,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-15 20:15:14,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 24 [2024-09-15 20:15:14,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:15:14,710 INFO L225 Difference]: With dead ends: 30 [2024-09-15 20:15:14,710 INFO L226 Difference]: Without dead ends: 30 [2024-09-15 20:15:14,710 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-15 20:15:14,711 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 14 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-09-15 20:15:14,711 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 95 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-09-15 20:15:14,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-09-15 20:15:14,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2024-09-15 20:15:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-15 20:15:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-09-15 20:15:14,715 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 24 [2024-09-15 20:15:14,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:15:14,715 INFO L474 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-09-15 20:15:14,715 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-15 20:15:14,715 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-09-15 20:15:14,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-15 20:15:14,716 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:15:14,716 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:15:14,729 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 20:15:14,920 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:15:14,921 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 3 more)] === [2024-09-15 20:15:14,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:15:14,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1389336356, now seen corresponding path program 1 times [2024-09-15 20:15:14,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:15:14,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134206648] [2024-09-15 20:15:14,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:15:14,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:15:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:15:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-15 20:15:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-15 20:15:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-15 20:15:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-15 20:15:15,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:15:15,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134206648] [2024-09-15 20:15:15,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134206648] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:15:15,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:15:15,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-15 20:15:15,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263447354] [2024-09-15 20:15:15,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:15:15,042 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-15 20:15:15,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:15:15,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-15 20:15:15,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:15:15,043 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-15 20:15:15,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:15:15,053 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2024-09-15 20:15:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-15 20:15:15,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-09-15 20:15:15,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:15:15,054 INFO L225 Difference]: With dead ends: 23 [2024-09-15 20:15:15,054 INFO L226 Difference]: Without dead ends: 23 [2024-09-15 20:15:15,054 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 20:15:15,055 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:15:15,055 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:15:15,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-15 20:15:15,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-15 20:15:15,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-15 20:15:15,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2024-09-15 20:15:15,058 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 29 [2024-09-15 20:15:15,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:15:15,059 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-09-15 20:15:15,059 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-15 20:15:15,059 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-09-15 20:15:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-15 20:15:15,059 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:15:15,059 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:15:15,060 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-15 20:15:15,060 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 3 more)] === [2024-09-15 20:15:15,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:15:15,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1389336195, now seen corresponding path program 1 times [2024-09-15 20:15:15,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:15:15,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124668205] [2024-09-15 20:15:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:15:15,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:15:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:15:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-15 20:15:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-15 20:15:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-15 20:15:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,119 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-15 20:15:15,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:15:15,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124668205] [2024-09-15 20:15:15,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124668205] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:15:15,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:15:15,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-15 20:15:15,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947423709] [2024-09-15 20:15:15,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:15:15,120 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-15 20:15:15,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:15:15,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-15 20:15:15,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-15 20:15:15,121 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-15 20:15:15,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:15:15,133 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2024-09-15 20:15:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-15 20:15:15,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-09-15 20:15:15,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:15:15,135 INFO L225 Difference]: With dead ends: 22 [2024-09-15 20:15:15,135 INFO L226 Difference]: Without dead ends: 22 [2024-09-15 20:15:15,135 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 20:15:15,136 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:15:15,136 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:15:15,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-09-15 20:15:15,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-09-15 20:15:15,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-15 20:15:15,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-09-15 20:15:15,139 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 29 [2024-09-15 20:15:15,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:15:15,140 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-09-15 20:15:15,140 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-15 20:15:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-09-15 20:15:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-15 20:15:15,142 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:15:15,143 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 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 20:15:15,143 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-15 20:15:15,143 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 3 more)] === [2024-09-15 20:15:15,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:15:15,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1673958034, now seen corresponding path program 1 times [2024-09-15 20:15:15,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:15:15,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499391267] [2024-09-15 20:15:15,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:15:15,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:15:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:15:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-15 20:15:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-15 20:15:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-15 20:15:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-15 20:15:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:15:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-15 20:15:15,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:15:15,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499391267] [2024-09-15 20:15:15,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499391267] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:15:15,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:15:15,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-15 20:15:15,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078268914] [2024-09-15 20:15:15,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:15:15,343 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-15 20:15:15,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:15:15,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-15 20:15:15,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-15 20:15:15,344 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-15 20:15:19,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-15 20:15:19,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:15:19,366 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2024-09-15 20:15:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-15 20:15:19,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2024-09-15 20:15:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:15:19,368 INFO L225 Difference]: With dead ends: 22 [2024-09-15 20:15:19,368 INFO L226 Difference]: Without dead ends: 0 [2024-09-15 20:15:19,368 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-15 20:15:19,369 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:15:19,370 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-09-15 20:15:19,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-15 20:15:19,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-15 20:15:19,371 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 20:15:19,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-15 20:15:19,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2024-09-15 20:15:19,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:15:19,371 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-15 20:15:19,371 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-15 20:15:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-15 20:15:19,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-15 20:15:19,374 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-09-15 20:15:19,374 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION (4 of 6 remaining) [2024-09-15 20:15:19,375 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (3 of 6 remaining) [2024-09-15 20:15:19,375 INFO L785 garLoopResultBuilder]: Registering result SAFE for location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION (2 of 6 remaining) [2024-09-15 20:15:19,375 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-09-15 20:15:19,375 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION (0 of 6 remaining) [2024-09-15 20:15:19,375 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-15 20:15:19,378 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-09-15 20:15:19,379 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-15 20:15:19,380 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-09-15 20:15:19,381 INFO L470 ceAbstractionStarter]: WitnessConsidered=1 [2024-09-15 20:15:19,381 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:15:19 BoogieIcfgContainer [2024-09-15 20:15:19,381 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-15 20:15:19,382 INFO L158 Benchmark]: Toolchain (without parser) took 8066.00ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 56.4MB in the beginning and 51.3MB in the end (delta: 5.1MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2024-09-15 20:15:19,382 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:15:19,382 INFO L158 Benchmark]: Witness Parser took 0.08ms. Allocated memory is still 75.5MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:15:19,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.22ms. Allocated memory is still 75.5MB. Free memory was 56.4MB in the beginning and 42.6MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-15 20:15:19,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.59ms. Allocated memory is still 75.5MB. Free memory was 42.6MB in the beginning and 41.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:15:19,382 INFO L158 Benchmark]: Boogie Preprocessor took 28.67ms. Allocated memory is still 75.5MB. Free memory was 41.2MB in the beginning and 39.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:15:19,383 INFO L158 Benchmark]: RCFGBuilder took 303.19ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 39.6MB in the beginning and 70.4MB in the end (delta: -30.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-15 20:15:19,383 INFO L158 Benchmark]: TraceAbstraction took 7468.38ms. Allocated memory is still 98.6MB. Free memory was 70.0MB in the beginning and 51.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2024-09-15 20:15:19,385 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.08ms. Allocated memory is still 75.5MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.22ms. Allocated memory is still 75.5MB. Free memory was 56.4MB in the beginning and 42.6MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.59ms. Allocated memory is still 75.5MB. Free memory was 42.6MB in the beginning and 41.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.67ms. Allocated memory is still 75.5MB. Free memory was 41.2MB in the beginning and 39.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.19ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 39.6MB in the beginning and 70.4MB in the end (delta: -30.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7468.38ms. Allocated memory is still 98.6MB. Free memory was 70.0MB in the beginning and 51.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.6MB. 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: 36]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 15]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 15]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 12]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - PositiveResult [Line: 18]: 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: 15]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 325 SdHoareTripleChecker+Invalid, 6.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 189 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 136 mSDtfsCounter, 142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 24, 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 102/120 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-15 20:15:19,401 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