./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 ca4ee3dd Calling Ultimate with: /root/.sdkman/candidates/java/current/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-ca4ee3d-m [2024-09-20 20:08:40,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:08:40,106 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 20:08:40,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:08:40,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:08:40,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:08:40,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:08:40,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:08:40,150 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:08:40,150 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:08:40,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:08:40,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:08:40,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:08:40,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:08:40,152 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:08:40,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:08:40,152 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:08:40,153 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:08:40,153 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 20:08:40,157 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:08:40,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:08:40,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:08:40,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:08:40,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:08:40,158 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:08:40,159 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:08:40,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:08:40,159 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:08:40,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:08:40,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:08:40,159 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:08:40,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:08:40,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:08:40,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:40,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:08:40,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:08:40,161 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:08:40,161 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 20:08:40,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 20:08:40,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:08:40,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:08:40,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:08:40,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:08:40,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:08:40,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:08:40,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:08:40,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:08:40,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:08:40,409 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:08:40,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-20 20:08:41,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:08:42,012 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:08:42,012 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-20 20:08:42,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/7bc52a8f4/a52d45bc38bf476faad9a8f0a6fffd83/FLAGfdf8717bf [2024-09-20 20:08:42,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/7bc52a8f4/a52d45bc38bf476faad9a8f0a6fffd83 [2024-09-20 20:08:42,042 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:08:42,045 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:08:42,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml [2024-09-20 20:08:42,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:08:42,098 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:08:42,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:08:42,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:08:42,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:08:42,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:08:42" (1/2) ... [2024-09-20 20:08:42,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a30f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:42, skipping insertion in model container [2024-09-20 20:08:42,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:08:42" (1/2) ... [2024-09-20 20:08:42,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56fced2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:42, skipping insertion in model container [2024-09-20 20:08:42,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:08:42" (2/2) ... [2024-09-20 20:08:42,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a30f70 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:42, skipping insertion in model container [2024-09-20 20:08:42,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:08:42" (2/2) ... [2024-09-20 20:08:42,113 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:08:42,113 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((x == 1) && (1 <= y)) [2024-09-20 20:08:42,113 INFO L1541 ArrayList]: Function contract at [L10]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-20 20:08:42,128 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:08:42,262 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] [2024-09-20 20:08:42,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:08:42,292 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 20:08:42,350 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 [2024-09-20 20:08:42,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:08:42,380 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:08:42,380 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:42 WrapperNode [2024-09-20 20:08:42,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:08:42,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:08:42,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:08:42,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:08:42,395 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 20.09 08:08:42" (1/1) ... [2024-09-20 20:08:42,396 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 20.09 08:08:42" (1/1) ... [2024-09-20 20:08:42,400 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 20.09 08:08:42" (1/1) ... [2024-09-20 20:08:42,407 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 [2024-09-20 20:08:42,408 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 20.09 08:08:42" (1/1) ... [2024-09-20 20:08:42,408 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 20.09 08:08:42" (1/1) ... [2024-09-20 20:08:42,410 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 20.09 08:08:42" (1/1) ... [2024-09-20 20:08:42,413 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 20.09 08:08:42" (1/1) ... [2024-09-20 20:08:42,413 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 20.09 08:08:42" (1/1) ... [2024-09-20 20:08:42,414 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 20.09 08:08:42" (1/1) ... [2024-09-20 20:08:42,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:08:42,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:08:42,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:08:42,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:08:42,417 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 20.09 08:08:42" (1/1) ... [2024-09-20 20:08:42,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:42,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:08:42,463 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) [2024-09-20 20:08:42,465 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 [2024-09-20 20:08:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:08:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:08:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:08:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 20:08:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 20:08:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:08:42,614 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:08:42,616 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:08:42,712 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:08:42,719 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:08:42,741 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:08:42,742 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 20:08:42,742 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:08:42 BoogieIcfgContainer [2024-09-20 20:08:42,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:08:42,743 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:08:42,743 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:08:42,743 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:08:42,744 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:08:42" (1/4) ... [2024-09-20 20:08:42,744 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3f0a6f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:08:42, skipping insertion in model container [2024-09-20 20:08:42,744 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:08:42" (2/4) ... [2024-09-20 20:08:42,744 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3f0a6f78 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:08:42, skipping insertion in model container [2024-09-20 20:08:42,744 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 20.09 08:08:42" (3/4) ... [2024-09-20 20:08:42,745 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3f0a6f78 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:08:42, skipping insertion in model container [2024-09-20 20:08:42,745 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:08:42" (4/4) ... [2024-09-20 20:08:42,746 INFO L79 RefereeObserver]: Analyzing ICFG phases_2-2.c [2024-09-20 20:08:42,749 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 20:08:42,750 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:08:42,750 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-20 20:08:42,750 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 20:08:42,750 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:08:42,750 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 20:08:42,750 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to error location, 2 loop-free subgraphs from procedure entry to error location [2024-09-20 20:08:42,780 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 20:08:42,781 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:42,781 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:42,782 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:42,785 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:42,787 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,797 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 20:08:42,798 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,799 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:42,799 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:42,799 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:42,804 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:42,816 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:08:42,825 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:08:42,825 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:42,826 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:42,826 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:42,826 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:42,826 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,829 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:08:42,829 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,829 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:42,829 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:42,830 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:42,830 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:42,834 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:08:42,852 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:08:42,852 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:42,852 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:42,852 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:42,852 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:42,853 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,876 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:08:42,876 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,876 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:42,876 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:42,877 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:42,881 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:46,885 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:08:46,897 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:08:46,897 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:46,897 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:46,897 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:46,898 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:46,898 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,900 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:08:46,901 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,901 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:46,901 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:46,901 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:46,902 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:46,903 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:08:46,909 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:08:46,910 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:46,910 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:46,910 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:46,910 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:46,910 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,912 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:08:46,912 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,912 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:46,913 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:46,913 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:46,913 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:46,914 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 20:08:46,919 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 20:08:46,919 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3f0a6f78 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 08:08:46, skipping insertion in model container [2024-09-20 20:08:46,919 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 20:08:46,921 INFO L158 Benchmark]: Toolchain (without parser) took 4822.46ms. Allocated memory was 159.4MB in the beginning and 230.7MB in the end (delta: 71.3MB). Free memory was 85.7MB in the beginning and 176.2MB in the end (delta: -90.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:46,921 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 159.4MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:46,921 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 159.4MB. Free memory was 87.7MB in the beginning and 87.6MB in the end (delta: 166.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:46,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.83ms. Allocated memory is still 159.4MB. Free memory was 85.6MB in the beginning and 72.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 20:08:46,922 INFO L158 Benchmark]: Boogie Preprocessor took 34.22ms. Allocated memory is still 159.4MB. Free memory was 72.5MB in the beginning and 70.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:08:46,923 INFO L158 Benchmark]: RCFGBuilder took 326.42ms. Allocated memory was 159.4MB in the beginning and 230.7MB in the end (delta: 71.3MB). Free memory was 70.3MB in the beginning and 191.9MB in the end (delta: -121.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-09-20 20:08:46,923 INFO L158 Benchmark]: Referee took 4176.74ms. Allocated memory is still 230.7MB. Free memory was 191.9MB in the beginning and 176.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 20:08:46,928 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 __VERIFIER_assert to exit of procedure __VERIFIER_assert. 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 main to loop head 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 0.72ms. Allocated memory is still 159.4MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 159.4MB. Free memory was 87.7MB in the beginning and 87.6MB in the end (delta: 166.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.83ms. Allocated memory is still 159.4MB. Free memory was 85.6MB in the beginning and 72.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.22ms. Allocated memory is still 159.4MB. Free memory was 72.5MB in the beginning and 70.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.42ms. Allocated memory was 159.4MB in the beginning and 230.7MB in the end (delta: 71.3MB). Free memory was 70.3MB in the beginning and 191.9MB in the end (delta: -121.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Referee took 4176.74ms. Allocated memory is still 230.7MB. Free memory was 191.9MB in the beginning and 176.2MB 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. [2024-09-20 20:08:46,947 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/current/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-ca4ee3d-m [2024-09-20 20:08:48,931 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:08:48,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 20:08:48,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:08:48,993 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:08:49,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:08:49,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:08:49,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:08:49,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:08:49,025 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:08:49,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:08:49,026 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:08:49,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:08:49,027 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:08:49,027 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:08:49,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:08:49,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:08:49,028 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:08:49,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:08:49,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:08:49,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:08:49,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:08:49,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:08:49,033 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 20:08:49,033 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 20:08:49,033 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:08:49,033 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 20:08:49,033 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:08:49,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:08:49,034 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:08:49,034 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:08:49,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:08:49,034 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:08:49,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:08:49,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:08:49,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:49,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:08:49,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:08:49,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:08:49,035 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 20:08:49,035 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 20:08:49,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:08:49,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:08:49,038 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:08:49,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:08:49,039 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 20:08:49,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:08:49,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:08:49,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:08:49,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:08:49,328 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:08:49,329 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:08:49,331 INFO L431 ainManager$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 [2024-09-20 20:08:49,376 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:08:49,377 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:08:49,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-20 20:08:50,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:08:51,131 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:08:51,131 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-20 20:08:51,137 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/2cb4dc411/930d0374f8514857bbf8605b2e19ca64/FLAG1d79d642a [2024-09-20 20:08:51,458 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/2cb4dc411/930d0374f8514857bbf8605b2e19ca64 [2024-09-20 20:08:51,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:08:51,460 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:08:51,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:08:51,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:08:51,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:08:51,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:08:49" (1/2) ... [2024-09-20 20:08:51,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7689a7cb and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:51, skipping insertion in model container [2024-09-20 20:08:51,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:08:49" (1/2) ... [2024-09-20 20:08:51,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43ba69d7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:51, skipping insertion in model container [2024-09-20 20:08:51,467 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:08:51" (2/2) ... [2024-09-20 20:08:51,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7689a7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51, skipping insertion in model container [2024-09-20 20:08:51,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:08:51" (2/2) ... [2024-09-20 20:08:51,473 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:08:51,473 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((x == 1) && (1 <= y)) [2024-09-20 20:08:51,473 INFO L1541 ArrayList]: Function contract at [L10]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-20 20:08:51,486 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:08:51,661 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] [2024-09-20 20:08:51,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:08:51,678 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 20:08:51,733 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 [2024-09-20 20:08:51,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:08:51,765 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:08:51,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51 WrapperNode [2024-09-20 20:08:51,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:08:51,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:08:51,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:08:51,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:08:51,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (1/1) ... [2024-09-20 20:08:51,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (1/1) ... [2024-09-20 20:08:51,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (1/1) ... [2024-09-20 20:08:51,815 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 [2024-09-20 20:08:51,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (1/1) ... [2024-09-20 20:08:51,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (1/1) ... [2024-09-20 20:08:51,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (1/1) ... [2024-09-20 20:08:51,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (1/1) ... [2024-09-20 20:08:51,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (1/1) ... [2024-09-20 20:08:51,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (1/1) ... [2024-09-20 20:08:51,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:08:51,838 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:08:51,838 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:08:51,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:08:51,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (1/1) ... [2024-09-20 20:08:51,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:51,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:08:51,863 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) [2024-09-20 20:08:51,872 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 [2024-09-20 20:08:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:08:51,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:08:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:08:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 20:08:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 20:08:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:08:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:08:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:08:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:08:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:08:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 20:08:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 20:08:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:08:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:08:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:08:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-20 20:08:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:08:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-20 20:08:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-20 20:08:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:08:51,978 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:08:51,981 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:08:52,143 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:08:52,162 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:08:52,192 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:08:52,194 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 20:08:52,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:08:52 BoogieIcfgContainer [2024-09-20 20:08:52,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:08:52,195 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:08:52,195 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:08:52,195 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:08:52,196 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:08:49" (1/4) ... [2024-09-20 20:08:52,197 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2715b23a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:08:52, skipping insertion in model container [2024-09-20 20:08:52,197 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:08:51" (2/4) ... [2024-09-20 20:08:52,197 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2715b23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:08:52, skipping insertion in model container [2024-09-20 20:08:52,197 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:51" (3/4) ... [2024-09-20 20:08:52,198 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2715b23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:08:52, skipping insertion in model container [2024-09-20 20:08:52,198 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:08:52" (4/4) ... [2024-09-20 20:08:52,199 INFO L79 RefereeObserver]: Analyzing ICFG phases_2-2.c [2024-09-20 20:08:52,202 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 20:08:52,203 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:08:52,203 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-20 20:08:52,203 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 20:08:52,203 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:08:52,203 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 20:08:52,204 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from procedure entry to error location [2024-09-20 20:08:52,244 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 20:08:52,245 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:52,245 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:52,246 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:52,247 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:52,248 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:52,261 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 20:08:52,263 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:52,263 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:52,263 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:52,264 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:52,267 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:52,292 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:08:52,306 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:08:52,309 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:52,309 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:52,310 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:52,310 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:52,311 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:52,313 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:08:52,315 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:52,315 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:52,316 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:52,316 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:52,316 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:52,321 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:08:52,335 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:08:52,337 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:52,337 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:52,337 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:52,337 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:52,337 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:52,345 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:08:52,347 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:52,348 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:52,348 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:52,348 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:52,355 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:52,377 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:08:52,394 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:08:52,396 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:52,396 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:52,396 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:52,397 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:52,397 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:52,400 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:08:52,402 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:52,403 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:52,403 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:52,403 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:52,403 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:52,405 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:08:52,414 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:08:52,414 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:52,415 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:52,415 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:52,415 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:52,415 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:52,418 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:08:52,419 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:52,419 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:52,419 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:52,420 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:52,420 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:52,422 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 20:08:52,425 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-20 20:08:52,426 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2715b23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 08:08:52, skipping insertion in model container [2024-09-20 20:08:52,426 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 20:08:52,428 INFO L158 Benchmark]: Toolchain (without parser) took 967.23ms. Allocated memory was 77.6MB in the beginning and 121.6MB in the end (delta: 44.0MB). Free memory was 40.2MB in the beginning and 90.1MB in the end (delta: -49.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-09-20 20:08:52,428 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 77.6MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:52,429 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:52,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.27ms. Allocated memory is still 77.6MB. Free memory was 40.2MB in the beginning and 50.9MB in the end (delta: -10.6MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-09-20 20:08:52,430 INFO L158 Benchmark]: Boogie Preprocessor took 67.04ms. Allocated memory is still 77.6MB. Free memory was 50.6MB in the beginning and 48.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:08:52,431 INFO L158 Benchmark]: RCFGBuilder took 356.18ms. Allocated memory is still 77.6MB. Free memory was 48.5MB in the beginning and 36.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 20:08:52,432 INFO L158 Benchmark]: Referee took 231.62ms. Allocated memory was 77.6MB in the beginning and 121.6MB in the end (delta: 44.0MB). Free memory was 36.3MB in the beginning and 90.1MB in the end (delta: -53.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-20 20:08:52,434 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 check that procedure precondition always holds 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 loop head 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: * Witness Parser took 0.21ms. Allocated memory is still 77.6MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.27ms. Allocated memory is still 77.6MB. Free memory was 40.2MB in the beginning and 50.9MB in the end (delta: -10.6MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.04ms. Allocated memory is still 77.6MB. Free memory was 50.6MB in the beginning and 48.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.18ms. Allocated memory is still 77.6MB. Free memory was 48.5MB in the beginning and 36.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 231.62ms. Allocated memory was 77.6MB in the beginning and 121.6MB in the end (delta: 44.0MB). Free memory was 36.3MB in the beginning and 90.1MB in the end (delta: -53.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-20 20:08:52,464 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE