./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/phases_2-2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6908dde5 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-acceleration/phases_2-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_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-6908dde-m [2024-09-25 00:26:41,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:26:41,508 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 00:26:41,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:26:41,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:26:41,539 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:26:41,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:26:41,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:26:41,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:26:41,543 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:26:41,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:26:41,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:26:41,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:26:41,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:26:41,547 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:26:41,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:26:41,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:26:41,547 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:26:41,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 00:26:41,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:26:41,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:26:41,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:26:41,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:26:41,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:26:41,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:26:41,553 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:26:41,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:26:41,553 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:26:41,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:26:41,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:26:41,554 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:26:41,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:26:41,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:26:41,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:26:41,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:26:41,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:26:41,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:26:41,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 00:26:41,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 00:26:41,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:26:41,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:26:41,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:26:41,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:26:41,558 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/referee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:26:41,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:26:41,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:26:41,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:26:41,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:26:41,852 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:26:41,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-25 00:26:43,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:26:43,535 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:26:43,535 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-25 00:26:43,545 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/3a9813b7e/af7d48f7f2784aa8b0510e52f5d3e266/FLAGbedfcc328 [2024-09-25 00:26:43,559 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/3a9813b7e/af7d48f7f2784aa8b0510e52f5d3e266 [2024-09-25 00:26:43,561 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:26:43,562 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:26:43,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml [2024-09-25 00:26:43,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:26:43,611 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:26:43,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:26:43,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:26:43,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:26:43,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:26:43" (1/2) ... [2024-09-25 00:26:43,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48894cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:26:43, skipping insertion in model container [2024-09-25 00:26:43,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:26:43" (1/2) ... [2024-09-25 00:26:43,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3540d59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:26:43, skipping insertion in model container [2024-09-25 00:26:43,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:26:43" (2/2) ... [2024-09-25 00:26:43,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48894cac and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:26:43, skipping insertion in model container [2024-09-25 00:26:43,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:26:43" (2/2) ... [2024-09-25 00:26:43,633 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:26:43,633 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((x == 1) && (1 <= y)) [2024-09-25 00:26:43,634 INFO L1541 ArrayList]: Function contract at [L10]: requires (cond != 0), ensures (cond != 0) [2024-09-25 00:26:43,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:26:43,815 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/loop-acceleration/phases_2-2.c[459,472] [2024-09-25 00:26:43,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:26:43,844 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 00:26:43,885 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/loop-acceleration/phases_2-2.c[459,472] Start Parsing Local [2024-09-25 00:26:43,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:26:43,907 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:26:43,908 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:26:43 WrapperNode [2024-09-25 00:26:43,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:26:43,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:26:43,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:26:43,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:26:43,921 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 25.09 12:26:43" (1/1) ... [2024-09-25 00:26:43,922 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 25.09 12:26:43" (1/1) ... [2024-09-25 00:26:43,928 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 25.09 12:26:43" (1/1) ... [2024-09-25 00:26:43,942 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-25 00:26:43,942 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 25.09 12:26:43" (1/1) ... [2024-09-25 00:26:43,943 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 25.09 12:26:43" (1/1) ... [2024-09-25 00:26:43,946 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 25.09 12:26:43" (1/1) ... [2024-09-25 00:26:43,949 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 25.09 12:26:43" (1/1) ... [2024-09-25 00:26:43,950 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 25.09 12:26:43" (1/1) ... [2024-09-25 00:26:43,951 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 25.09 12:26:43" (1/1) ... [2024-09-25 00:26:43,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:26:43,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:26:43,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:26:43,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:26:43,955 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 25.09 12:26:43" (1/1) ... [2024-09-25 00:26:43,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:26:43,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:26:43,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 00:26:43,995 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 00:26:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:26:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:26:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:26:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:26:44,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-25 00:26:44,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:26:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:26:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:26:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:26:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:26:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:26:44,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-25 00:26:44,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:26:44,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:26:44,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:26:44,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 00:26:44,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:26:44,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 00:26:44,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 00:26:44,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:26:44,123 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:26:44,126 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:26:44,287 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 00:26:44,303 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:26:44,338 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:26:44,339 INFO L317 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-25 00:26:44,340 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:26:44 BoogieIcfgContainer [2024-09-25 00:26:44,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:26:44,341 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:26:44,341 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:26:44,342 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:26:44,342 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:26:43" (1/4) ... [2024-09-25 00:26:44,343 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6e629bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:26:44, skipping insertion in model container [2024-09-25 00:26:44,343 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:26:43" (2/4) ... [2024-09-25 00:26:44,343 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6e629bf5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:26:44, skipping insertion in model container [2024-09-25 00:26:44,345 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:26:43" (3/4) ... [2024-09-25 00:26:44,345 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6e629bf5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:26:44, skipping insertion in model container [2024-09-25 00:26:44,345 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:26:44" (4/4) ... [2024-09-25 00:26:44,347 INFO L79 RefereeObserver]: Analyzing ICFG phases_2-2.c [2024-09-25 00:26:44,350 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-25 00:26:44,351 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-25 00:26:44,352 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-25 00:26:44,352 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 00:26:44,352 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-25 00:26:44,352 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-25 00:26:44,352 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head [2024-09-25 00:26:44,413 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-25 00:26:44,416 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:26:44,416 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:26:44,417 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:26:44,418 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:26:44,420 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:44,445 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-25 00:26:44,447 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:44,447 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:26:44,447 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:26:44,448 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:26:44,454 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:26:44,470 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 00:26:44,488 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 00:26:44,488 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:26:44,489 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:26:44,489 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:26:44,489 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:26:44,489 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:44,493 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 00:26:44,493 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:44,494 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:26:44,496 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:26:44,496 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:26:44,496 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:26:44,505 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:26:44,522 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 00:26:44,522 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:26:44,522 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:26:44,523 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:26:44,523 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:26:44,523 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:44,538 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:26:44,539 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:44,539 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:26:44,539 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:26:44,539 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:26:44,545 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:26:48,549 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-25 00:26:48,568 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 00:26:48,571 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:26:48,571 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:26:48,571 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:26:48,571 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:26:48,571 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:48,576 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:26:48,576 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:48,576 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:26:48,577 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:26:48,577 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:26:48,577 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:26:48,583 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 00:26:48,595 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 00:26:48,597 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:26:48,597 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:26:48,598 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:26:48,598 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:26:48,598 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:48,600 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 00:26:48,601 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:48,601 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:26:48,601 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:26:48,601 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:26:48,602 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:26:48,603 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 00:26:48,610 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-25 00:26:48,610 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6e629bf5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 12:26:48, skipping insertion in model container [2024-09-25 00:26:48,611 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 00:26:48,617 INFO L158 Benchmark]: Toolchain (without parser) took 5000.66ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 48.8MB in the beginning and 94.9MB in the end (delta: -46.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:26:48,617 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 119.5MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:26:48,617 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:26:48,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.62ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 48.6MB in the beginning and 125.3MB in the end (delta: -76.7MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-09-25 00:26:48,619 INFO L158 Benchmark]: Boogie Preprocessor took 44.18ms. Allocated memory is still 159.4MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:26:48,619 INFO L158 Benchmark]: RCFGBuilder took 386.33ms. Allocated memory is still 159.4MB. Free memory was 123.2MB in the beginning and 110.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 00:26:48,620 INFO L158 Benchmark]: Referee took 4270.08ms. Allocated memory is still 159.4MB. Free memory was 110.7MB in the beginning and 94.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 00:26:48,625 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 23. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 23. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 12. Annotation is valid for all loop-free paths from loop head at line 23 to check that procedure precondition always holds at line 23. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 119.5MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.62ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 48.6MB in the beginning and 125.3MB in the end (delta: -76.7MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.18ms. Allocated memory is still 159.4MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.33ms. Allocated memory is still 159.4MB. Free memory was 123.2MB in the beginning and 110.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 4270.08ms. Allocated memory is still 159.4MB. Free memory was 110.7MB in the beginning and 94.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:26:48,654 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-acceleration/phases_2-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.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-6908dde-m [2024-09-25 00:26:50,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:26:50,956 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 00:26:50,963 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:26:50,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:26:50,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:26:50,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:26:51,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:26:51,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:26:51,002 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:26:51,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:26:51,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:26:51,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:26:51,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:26:51,005 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:26:51,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:26:51,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:26:51,009 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:26:51,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:26:51,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:26:51,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:26:51,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:26:51,014 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:26:51,014 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 00:26:51,015 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 00:26:51,015 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:26:51,015 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 00:26:51,016 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:26:51,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:26:51,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:26:51,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:26:51,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:26:51,018 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:26:51,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:26:51,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:26:51,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:26:51,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:26:51,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:26:51,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:26:51,020 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 00:26:51,021 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 00:26:51,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:26:51,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:26:51,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:26:51,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:26:51,022 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 00:26:51,022 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/referee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:26:51,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:26:51,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:26:51,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:26:51,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:26:51,381 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:26:51,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-25 00:26:53,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:26:53,241 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:26:53,242 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-25 00:26:53,248 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/2b1bd63f7/d58d6c64363144b1bc97f5fc46e3414a/FLAG5c74da74d [2024-09-25 00:26:53,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/2b1bd63f7/d58d6c64363144b1bc97f5fc46e3414a [2024-09-25 00:26:53,263 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:26:53,264 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:26:53,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml [2024-09-25 00:26:53,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:26:53,321 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:26:53,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:26:53,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:26:53,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:26:53,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:26:53" (1/2) ... [2024-09-25 00:26:53,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cec3fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:26:53, skipping insertion in model container [2024-09-25 00:26:53,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:26:53" (1/2) ... [2024-09-25 00:26:53,334 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@34f322d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:26:53, skipping insertion in model container [2024-09-25 00:26:53,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:26:53" (2/2) ... [2024-09-25 00:26:53,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cec3fa8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:26:53, skipping insertion in model container [2024-09-25 00:26:53,335 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:26:53" (2/2) ... [2024-09-25 00:26:53,347 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:26:53,348 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((x == 1) && (1 <= y)) [2024-09-25 00:26:53,348 INFO L1541 ArrayList]: Function contract at [L10]: requires (cond != 0), ensures (cond != 0) [2024-09-25 00:26:53,366 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:26:53,543 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/loop-acceleration/phases_2-2.c[459,472] [2024-09-25 00:26:53,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:26:53,574 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 00:26:53,614 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/loop-acceleration/phases_2-2.c[459,472] Start Parsing Local [2024-09-25 00:26:53,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:26:53,645 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:26:53,646 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:26:53 WrapperNode [2024-09-25 00:26:53,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:26:53,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:26:53,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:26:53,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:26:53,661 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 25.09 12:26:53" (1/1) ... [2024-09-25 00:26:53,661 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 25.09 12:26:53" (1/1) ... [2024-09-25 00:26:53,670 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 25.09 12:26:53" (1/1) ... [2024-09-25 00:26:53,680 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-25 00:26:53,693 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 25.09 12:26:53" (1/1) ... [2024-09-25 00:26:53,694 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 25.09 12:26:53" (1/1) ... [2024-09-25 00:26:53,702 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 25.09 12:26:53" (1/1) ... [2024-09-25 00:26:53,708 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 25.09 12:26:53" (1/1) ... [2024-09-25 00:26:53,710 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 25.09 12:26:53" (1/1) ... [2024-09-25 00:26:53,711 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 25.09 12:26:53" (1/1) ... [2024-09-25 00:26:53,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:26:53,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:26:53,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:26:53,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:26:53,716 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 25.09 12:26:53" (1/1) ... [2024-09-25 00:26:53,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:26:53,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:26:53,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 00:26:53,750 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 00:26:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:26:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:26:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:26:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:26:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-25 00:26:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:26:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:26:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:26:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:26:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:26:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:26:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-25 00:26:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:26:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:26:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:26:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-25 00:26:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:26:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-25 00:26:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-25 00:26:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:26:53,881 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:26:53,885 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:26:54,105 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 00:26:54,121 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:26:54,163 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:26:54,164 INFO L317 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-25 00:26:54,164 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:26:54 BoogieIcfgContainer [2024-09-25 00:26:54,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:26:54,165 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:26:54,166 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:26:54,167 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:26:54,167 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:26:53" (1/4) ... [2024-09-25 00:26:54,167 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56f31522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:26:54, skipping insertion in model container [2024-09-25 00:26:54,169 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:26:53" (2/4) ... [2024-09-25 00:26:54,169 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56f31522 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:26:54, skipping insertion in model container [2024-09-25 00:26:54,169 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:26:53" (3/4) ... [2024-09-25 00:26:54,170 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56f31522 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:26:54, skipping insertion in model container [2024-09-25 00:26:54,170 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:26:54" (4/4) ... [2024-09-25 00:26:54,171 INFO L79 RefereeObserver]: Analyzing ICFG phases_2-2.c [2024-09-25 00:26:54,176 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-25 00:26:54,176 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-25 00:26:54,177 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-25 00:26:54,177 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 00:26:54,177 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-25 00:26:54,177 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-25 00:26:54,178 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head [2024-09-25 00:26:54,225 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-25 00:26:54,227 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:26:54,227 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:26:54,228 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:26:54,229 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:26:54,232 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:54,242 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-25 00:26:54,244 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:54,244 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:26:54,245 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:26:54,245 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:26:54,253 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:26:54,267 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 00:26:54,281 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 00:26:54,282 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:26:54,282 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:26:54,282 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:26:54,282 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:26:54,282 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:54,287 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 00:26:54,287 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:54,287 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:26:54,287 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:26:54,287 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:26:54,288 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:26:54,293 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:26:54,309 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 00:26:54,310 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:26:54,310 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:26:54,310 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:26:54,310 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:26:54,310 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:54,322 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:26:54,322 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:54,322 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:26:54,323 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:26:54,323 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:26:54,327 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:26:54,359 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:26:54,381 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 00:26:54,382 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:26:54,382 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:26:54,382 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:26:54,382 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:26:54,382 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:54,388 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:26:54,388 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:54,388 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:26:54,388 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:26:54,388 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:26:54,389 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:26:54,395 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 00:26:54,410 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 00:26:54,412 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:26:54,412 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:26:54,412 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:26:54,413 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:26:54,413 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:54,415 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 00:26:54,416 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:26:54,416 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:26:54,416 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:26:54,416 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:26:54,417 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:26:54,420 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 00:26:54,424 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-25 00:26:54,424 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56f31522 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 12:26:54, skipping insertion in model container [2024-09-25 00:26:54,425 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 00:26:54,426 INFO L158 Benchmark]: Toolchain (without parser) took 1105.11ms. Allocated memory is still 90.2MB. Free memory was 61.5MB in the beginning and 41.4MB in the end (delta: 20.1MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-09-25 00:26:54,427 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 41.6MB in the beginning and 41.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:26:54,427 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 90.2MB. Free memory was 63.5MB in the beginning and 63.3MB in the end (delta: 195.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:26:54,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.54ms. Allocated memory is still 90.2MB. Free memory was 61.3MB in the beginning and 47.8MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 00:26:54,429 INFO L158 Benchmark]: Boogie Preprocessor took 65.94ms. Allocated memory is still 90.2MB. Free memory was 47.8MB in the beginning and 69.1MB in the end (delta: -21.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 00:26:54,429 INFO L158 Benchmark]: RCFGBuilder took 450.20ms. Allocated memory is still 90.2MB. Free memory was 69.1MB in the beginning and 56.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 00:26:54,430 INFO L158 Benchmark]: Referee took 259.67ms. Allocated memory is still 90.2MB. Free memory was 56.6MB in the beginning and 41.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 00:26:54,435 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 23. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 23. Annotation is valid for all loop-free paths from loop head at line 23 to check that procedure precondition always holds at line 23. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 12. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 41.6MB in the beginning and 41.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 90.2MB. Free memory was 63.5MB in the beginning and 63.3MB in the end (delta: 195.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.54ms. Allocated memory is still 90.2MB. Free memory was 61.3MB in the beginning and 47.8MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.94ms. Allocated memory is still 90.2MB. Free memory was 47.8MB in the beginning and 69.1MB in the end (delta: -21.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 450.20ms. Allocated memory is still 90.2MB. Free memory was 69.1MB in the beginning and 56.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 259.67ms. Allocated memory is still 90.2MB. Free memory was 56.6MB in the beginning and 41.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-25 00:26:54,465 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/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