This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:07:27,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:28,054 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:07:28,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:28,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:28,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:28,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:28,088 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:28,088 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:28,090 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:28,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:28,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:28,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:28,091 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:28,091 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:28,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:28,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:28,093 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:28,094 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:07:28,094 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:28,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:28,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:28,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:28,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:28,097 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:28,097 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:28,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:28,098 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:28,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:28,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:28,098 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:28,098 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:28,098 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:28,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:28,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:28,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:28,099 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:28,099 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:07:28,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:07:28,100 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:28,100 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:28,101 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:28,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:28,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:28,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:28,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:28,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:28,352 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:28,353 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:28,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/mod3.c.v+lhb-reducer.yml/output/witness-2.1.yml [2024-09-21 19:07:28,391 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:28,391 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:28,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2024-09-21 19:07:29,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:29,880 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:29,880 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2024-09-21 19:07:29,886 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/49f0ec956/c37d5394ea0d40fd90fb01bef0ed5807/FLAG055015672 [2024-09-21 19:07:29,897 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/49f0ec956/c37d5394ea0d40fd90fb01bef0ed5807 [2024-09-21 19:07:29,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:29,900 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:29,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:29,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:29,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:29,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:28" (1/2) ... [2024-09-21 19:07:29,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bee3f60 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:29, skipping insertion in model container [2024-09-21 19:07:29,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:28" (1/2) ... [2024-09-21 19:07:29,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c5953d8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:29, skipping insertion in model container [2024-09-21 19:07:29,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:29" (2/2) ... [2024-09-21 19:07:29,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bee3f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:29, skipping insertion in model container [2024-09-21 19:07:29,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:29" (2/2) ... [2024-09-21 19:07:29,915 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:29,916 INFO L1541 ArrayList]: Function contract at [L16]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:29,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:30,060 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-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2024-09-21 19:07:30,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:30,083 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-21 19:07:30,121 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-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2024-09-21 19:07:30,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:30,139 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:30,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30 WrapperNode [2024-09-21 19:07:30,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:30,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:30,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:30,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:30,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (1/1) ... [2024-09-21 19:07:30,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (1/1) ... [2024-09-21 19:07:30,155 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (1/1) ... [2024-09-21 19:07:30,168 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-21 19:07:30,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (1/1) ... [2024-09-21 19:07:30,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (1/1) ... [2024-09-21 19:07:30,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (1/1) ... [2024-09-21 19:07:30,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (1/1) ... [2024-09-21 19:07:30,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (1/1) ... [2024-09-21 19:07:30,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (1/1) ... [2024-09-21 19:07:30,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:30,182 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:30,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:30,182 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:30,183 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (1/1) ... [2024-09-21 19:07:30,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:30,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:30,210 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) [2024-09-21 19:07:30,213 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 [2024-09-21 19:07:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:07:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:07:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:07:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:07:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:30,317 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:30,319 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:30,340 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:30,510 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:30,536 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:30,537 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-21 19:07:30,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:30 BoogieIcfgContainer [2024-09-21 19:07:30,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:30,538 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:30,538 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:30,538 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:30,539 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:28" (1/4) ... [2024-09-21 19:07:30,539 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6859dbf8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:30, skipping insertion in model container [2024-09-21 19:07:30,539 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:29" (2/4) ... [2024-09-21 19:07:30,539 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6859dbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:30, skipping insertion in model container [2024-09-21 19:07:30,540 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:30" (3/4) ... [2024-09-21 19:07:30,540 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6859dbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:30, skipping insertion in model container [2024-09-21 19:07:30,540 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:30" (4/4) ... [2024-09-21 19:07:30,541 INFO L79 RefereeObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2024-09-21 19:07:30,544 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 19:07:30,545 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 25 edges. [2024-09-21 19:07:30,545 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 29 edges. [2024-09-21 19:07:30,546 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:30,546 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-21 19:07:30,603 INFO L314 BlockEncoder]: Initial Icfg 19 locations, 25 edges [2024-09-21 19:07:30,606 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:30,606 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:30,607 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:30,607 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:30,610 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:30,709 INFO L101 BaseMinimizeStates]: Removed 53 edges and 15 locations by large block encoding [2024-09-21 19:07:30,710 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:30,710 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:30,710 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:30,711 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:30,726 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2024-09-21 19:07:30,742 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 29 edges [2024-09-21 19:07:30,743 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:30,743 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:30,743 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:30,743 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:30,744 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:30,814 INFO L101 BaseMinimizeStates]: Removed 73 edges and 16 locations by large block encoding [2024-09-21 19:07:30,815 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:30,815 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:30,815 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:30,816 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:30,828 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2024-09-21 19:07:30,829 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-21 19:07:30,835 INFO L158 Benchmark]: Toolchain (without parser) took 934.03ms. Allocated memory is still 182.5MB. Free memory was 111.6MB in the beginning and 113.0MB in the end (delta: -1.4MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2024-09-21 19:07:30,835 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 123.7MB. Free memory was 85.6MB in the beginning and 85.5MB in the end (delta: 48.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:30,835 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 123.7MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:30,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.98ms. Allocated memory is still 182.5MB. Free memory was 111.6MB in the beginning and 97.7MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:30,836 INFO L158 Benchmark]: Boogie Preprocessor took 40.00ms. Allocated memory is still 182.5MB. Free memory was 97.4MB in the beginning and 95.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:30,836 INFO L158 Benchmark]: RCFGBuilder took 355.32ms. Allocated memory is still 182.5MB. Free memory was 95.4MB in the beginning and 80.5MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:30,837 INFO L158 Benchmark]: Referee took 295.78ms. Allocated memory is still 182.5MB. Free memory was 80.5MB in the beginning and 113.0MB in the end (delta: -32.5MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-09-21 19:07:30,838 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.10ms. Allocated memory is still 123.7MB. Free memory was 85.6MB in the beginning and 85.5MB in the end (delta: 48.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 123.7MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.98ms. Allocated memory is still 182.5MB. Free memory was 111.6MB in the beginning and 97.7MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.00ms. Allocated memory is still 182.5MB. Free memory was 97.4MB in the beginning and 95.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.32ms. Allocated memory is still 182.5MB. Free memory was 95.4MB in the beginning and 80.5MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 295.78ms. Allocated memory is still 182.5MB. Free memory was 80.5MB in the beginning and 113.0MB in the end (delta: -32.5MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 19:07:30,861 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... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:07:32,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:32,933 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 19:07:32,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:32,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:32,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:32,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:32,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:32,966 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:32,969 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:32,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:32,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:32,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:32,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:32,970 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:32,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:32,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:32,971 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:32,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:32,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:32,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:32,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:32,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:32,974 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 19:07:32,974 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 19:07:32,975 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:32,975 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 19:07:32,975 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:32,975 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:32,975 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:32,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:32,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:32,975 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:32,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:32,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:32,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:32,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:32,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:32,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:32,977 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 19:07:32,977 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 19:07:32,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:32,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:32,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:32,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:32,979 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 19:07:32,980 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:33,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:33,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:33,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:33,283 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:33,283 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:33,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2024-09-21 19:07:34,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:34,745 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:34,746 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2024-09-21 19:07:34,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/cf2d3314c/7e2302d085b54abea7c0cd9e1f1b5daf/FLAG5975e4828 [2024-09-21 19:07:34,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/cf2d3314c/7e2302d085b54abea7c0cd9e1f1b5daf [2024-09-21 19:07:34,773 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:34,773 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:34,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/mod3.c.v+lhb-reducer.yml/output/witness-2.1.yml [2024-09-21 19:07:34,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:34,820 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:34,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:34,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:34,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:34,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:34" (1/2) ... [2024-09-21 19:07:34,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b10f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:34, skipping insertion in model container [2024-09-21 19:07:34,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:34" (1/2) ... [2024-09-21 19:07:34,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2474e342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:34, skipping insertion in model container [2024-09-21 19:07:34,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:34" (2/2) ... [2024-09-21 19:07:34,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b10f32 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:34, skipping insertion in model container [2024-09-21 19:07:34,834 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:34" (2/2) ... [2024-09-21 19:07:34,841 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:34,842 INFO L1541 ArrayList]: Function contract at [L16]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:34,863 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:35,018 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-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2024-09-21 19:07:35,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:35,049 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-21 19:07:35,106 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-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2024-09-21 19:07:35,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:35,126 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:35,126 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:35 WrapperNode [2024-09-21 19:07:35,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:35,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:35,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:35,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:35,142 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 21.09 07:07:35" (1/1) ... [2024-09-21 19:07:35,143 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 21.09 07:07:35" (1/1) ... [2024-09-21 19:07:35,150 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 21.09 07:07:35" (1/1) ... [2024-09-21 19:07:35,163 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-21 19:07:35,163 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 21.09 07:07:35" (1/1) ... [2024-09-21 19:07:35,164 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 21.09 07:07:35" (1/1) ... [2024-09-21 19:07:35,169 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 21.09 07:07:35" (1/1) ... [2024-09-21 19:07:35,171 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 21.09 07:07:35" (1/1) ... [2024-09-21 19:07:35,173 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 21.09 07:07:35" (1/1) ... [2024-09-21 19:07:35,174 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 21.09 07:07:35" (1/1) ... [2024-09-21 19:07:35,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:35,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:35,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:35,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:35,182 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 21.09 07:07:35" (1/1) ... [2024-09-21 19:07:35,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:35,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:35,206 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) [2024-09-21 19:07:35,208 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 [2024-09-21 19:07:35,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:07:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-21 19:07:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-21 19:07:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-21 19:07:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:35,327 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:35,329 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:35,353 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:35,536 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:35,571 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:35,571 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-21 19:07:35,571 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:35 BoogieIcfgContainer [2024-09-21 19:07:35,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:35,572 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:35,572 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:35,573 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:35,573 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:34" (1/4) ... [2024-09-21 19:07:35,574 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2361e700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:35, skipping insertion in model container [2024-09-21 19:07:35,575 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:34" (2/4) ... [2024-09-21 19:07:35,575 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2361e700 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:35, skipping insertion in model container [2024-09-21 19:07:35,575 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 21.09 07:07:35" (3/4) ... [2024-09-21 19:07:35,576 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2361e700 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:35, skipping insertion in model container [2024-09-21 19:07:35,576 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:35" (4/4) ... [2024-09-21 19:07:35,577 INFO L79 RefereeObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2024-09-21 19:07:35,580 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 19:07:35,581 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 25 edges. [2024-09-21 19:07:35,581 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 29 edges. [2024-09-21 19:07:35,581 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:35,581 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-21 19:07:35,645 INFO L314 BlockEncoder]: Initial Icfg 19 locations, 25 edges [2024-09-21 19:07:35,646 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:35,646 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:35,646 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:35,650 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:35,652 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:35,785 INFO L101 BaseMinimizeStates]: Removed 53 edges and 15 locations by large block encoding [2024-09-21 19:07:35,786 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:35,786 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:35,786 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:35,788 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:35,804 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2024-09-21 19:07:35,830 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 29 edges [2024-09-21 19:07:35,830 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:35,831 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:35,831 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:35,831 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:35,831 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:35,911 INFO L101 BaseMinimizeStates]: Removed 73 edges and 16 locations by large block encoding [2024-09-21 19:07:35,911 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:35,912 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:35,912 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:35,912 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:35,926 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2024-09-21 19:07:35,927 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-21 19:07:35,932 INFO L158 Benchmark]: Toolchain (without parser) took 1110.67ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 40.9MB in the beginning and 40.7MB in the end (delta: 229.6kB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2024-09-21 19:07:35,932 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 46.1MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:35,932 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 71.3MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:35,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.59ms. Allocated memory is still 71.3MB. Free memory was 40.9MB in the beginning and 48.4MB in the end (delta: -7.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:35,934 INFO L158 Benchmark]: Boogie Preprocessor took 46.56ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 46.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:35,935 INFO L158 Benchmark]: RCFGBuilder took 391.35ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 30.9MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:35,936 INFO L158 Benchmark]: Referee took 358.28ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 30.9MB in the beginning and 40.7MB in the end (delta: -9.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-09-21 19:07:35,939 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 46.1MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.22ms. Allocated memory is still 71.3MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.59ms. Allocated memory is still 71.3MB. Free memory was 40.9MB in the beginning and 48.4MB in the end (delta: -7.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.56ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 46.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 391.35ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 30.9MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 358.28ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 30.9MB in the beginning and 40.7MB in the end (delta: -9.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 19:07:35,966 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...