This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:25:53,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:53,252 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:25:53,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:53,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:53,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:53,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:53,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:53,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:53,301 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:53,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:53,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:53,302 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:53,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:53,303 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:53,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:53,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:53,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:53,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:25:53,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:53,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:53,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:53,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:53,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:53,306 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:53,307 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:53,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:53,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:53,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:53,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:53,308 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:53,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:53,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:53,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:53,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:53,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:53,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:53,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:25:53,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:25:53,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:53,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:53,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:53,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:53,312 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:53,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:53,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:53,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:53,580 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:53,580 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:53,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-20 13:25:53,636 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:53,636 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:53,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-20 13:25:55,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:25:55,234 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:25:55,235 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-20 13:25:55,242 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/838704180/ac9505b9fa81462292b9070ced01732e/FLAG1ece95876 [2024-09-20 13:25:55,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/838704180/ac9505b9fa81462292b9070ced01732e [2024-09-20 13:25:55,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:25:55,261 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:25:55,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:55,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:25:55,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:25:55,271 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 01:25:53" (1/2) ... [2024-09-20 13:25:55,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ab9fcc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:55, skipping insertion in model container [2024-09-20 13:25:55,272 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 01:25:53" (1/2) ... [2024-09-20 13:25:55,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4708a595 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:55, skipping insertion in model container [2024-09-20 13:25:55,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:55" (2/2) ... [2024-09-20 13:25:55,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ab9fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55, skipping insertion in model container [2024-09-20 13:25:55,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:55" (2/2) ... [2024-09-20 13:25:55,280 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:25:55,283 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_65) == __return_65)) [2024-09-20 13:25:55,301 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:25:55,473 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-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] [2024-09-20 13:25:55,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:55,496 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:25:55,515 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-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] Start Parsing Local [2024-09-20 13:25:55,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:55,558 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:25:55,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55 WrapperNode [2024-09-20 13:25:55,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:55,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:25:55,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:25:55,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:25:55,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (1/1) ... [2024-09-20 13:25:55,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (1/1) ... [2024-09-20 13:25:55,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (1/1) ... [2024-09-20 13:25:55,663 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-20 13:25:55,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (1/1) ... [2024-09-20 13:25:55,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (1/1) ... [2024-09-20 13:25:55,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (1/1) ... [2024-09-20 13:25:55,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (1/1) ... [2024-09-20 13:25:55,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (1/1) ... [2024-09-20 13:25:55,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (1/1) ... [2024-09-20 13:25:55,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:25:55,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:25:55,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:25:55,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:25:55,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (1/1) ... [2024-09-20 13:25:55,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:55,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:25:55,717 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 13:25:55,723 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 13:25:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:25:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:25:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:25:55,767 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:25:55,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:25:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:25:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:25:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:25:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:25:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:25:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:25:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:25:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:25:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:25:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:25:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:25:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-20 13:25:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-20 13:25:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:25:55,826 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:25:55,828 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:25:55,929 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:25:55,952 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:25:55,956 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:25:55,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:55 BoogieIcfgContainer [2024-09-20 13:25:55,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:25:55,957 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:25:55,957 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:25:55,958 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:25:55,958 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 01:25:53" (1/4) ... [2024-09-20 13:25:55,958 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2d11ec9c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:55, skipping insertion in model container [2024-09-20 13:25:55,959 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:25:55" (2/4) ... [2024-09-20 13:25:55,959 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2d11ec9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:55, skipping insertion in model container [2024-09-20 13:25:55,959 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:55" (3/4) ... [2024-09-20 13:25:55,959 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2d11ec9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:55, skipping insertion in model container [2024-09-20 13:25:55,959 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:55" (4/4) ... [2024-09-20 13:25:55,963 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2024-09-20 13:25:55,967 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:25:55,968 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 13:25:55,968 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-20 13:25:55,969 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 13:25:56,009 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-20 13:25:56,011 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:56,012 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:56,014 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:56,015 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:56,017 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:56,042 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:25:56,043 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:56,043 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:56,044 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:56,044 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:56,045 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 13:25:56,045 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) [2024-09-20 13:25:56,051 INFO L158 Benchmark]: Toolchain (without parser) took 788.26ms. Allocated memory is still 176.2MB. Free memory was 108.9MB in the beginning and 130.4MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:56,052 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 104.9MB. Free memory was 75.0MB in the beginning and 74.8MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:56,053 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory was 153.6MB in the beginning and 153.4MB in the end (delta: 195.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:56,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.76ms. Allocated memory is still 176.2MB. Free memory was 108.7MB in the beginning and 95.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:56,054 INFO L158 Benchmark]: Boogie Preprocessor took 121.11ms. Allocated memory is still 176.2MB. Free memory was 95.2MB in the beginning and 147.8MB in the end (delta: -52.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-20 13:25:56,055 INFO L158 Benchmark]: RCFGBuilder took 274.52ms. Allocated memory is still 176.2MB. Free memory was 147.8MB in the beginning and 136.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:25:56,056 INFO L158 Benchmark]: Referee took 91.08ms. Allocated memory is still 176.2MB. Free memory was 136.0MB in the beginning and 130.4MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-20 13:25:56,059 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 0.11ms. Allocated memory is still 104.9MB. Free memory was 75.0MB in the beginning and 74.8MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory was 153.6MB in the beginning and 153.4MB in the end (delta: 195.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.76ms. Allocated memory is still 176.2MB. Free memory was 108.7MB in the beginning and 95.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.11ms. Allocated memory is still 176.2MB. Free memory was 95.2MB in the beginning and 147.8MB in the end (delta: -52.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 274.52ms. Allocated memory is still 176.2MB. Free memory was 147.8MB in the beginning and 136.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 91.08ms. Allocated memory is still 176.2MB. Free memory was 136.0MB in the beginning and 130.4MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:25:56,088 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... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:25:58,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:58,331 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:25:58,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:58,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:58,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:58,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:58,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:58,368 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:58,369 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:58,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:58,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:58,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:58,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:58,374 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:58,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:58,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:58,375 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:58,375 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:58,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:58,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:58,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:58,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:58,380 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:25:58,380 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:25:58,381 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:58,381 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:25:58,381 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:58,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:58,382 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:58,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:58,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:58,383 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:58,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:58,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:58,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:58,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:58,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:58,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:58,384 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:25:58,385 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:25:58,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:58,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:58,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:58,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:58,387 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:25:58,387 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:58,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:58,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:58,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:58,723 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:58,724 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:58,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-20 13:25:58,782 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:58,782 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:58,783 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-20 13:26:00,258 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:26:00,469 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:26:00,470 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-20 13:26:00,477 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/ffd43c2d1/6fec91893eec4d36a8654e399557a72d/FLAG9d7c8dd3e [2024-09-20 13:26:00,848 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/ffd43c2d1/6fec91893eec4d36a8654e399557a72d [2024-09-20 13:26:00,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:26:00,850 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:26:00,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:00,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:26:00,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:26:00,855 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 01:25:58" (1/2) ... [2024-09-20 13:26:00,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb48373 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:00, skipping insertion in model container [2024-09-20 13:26:00,856 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 01:25:58" (1/2) ... [2024-09-20 13:26:00,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4039113d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:00, skipping insertion in model container [2024-09-20 13:26:00,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:00" (2/2) ... [2024-09-20 13:26:00,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb48373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:00, skipping insertion in model container [2024-09-20 13:26:00,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:00" (2/2) ... [2024-09-20 13:26:00,863 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:26:00,865 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_65) == __return_65)) [2024-09-20 13:26:00,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:26:01,021 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-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] [2024-09-20 13:26:01,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:01,040 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:26:01,059 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-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] Start Parsing Local [2024-09-20 13:26:01,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:01,104 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:26:01,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01 WrapperNode [2024-09-20 13:26:01,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:01,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:26:01,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:26:01,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:26:01,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,140 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-20 13:26:01,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:26:01,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:26:01,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:26:01,165 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:26:01,166 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:01,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:26:01,196 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 13:26:01,210 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 13:26:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:26:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:26:01,251 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:26:01,251 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:26:01,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:26:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:26:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:26:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:26:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:26:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:26:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:26:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:26:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:26:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:26:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-20 13:26:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:26:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-20 13:26:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-20 13:26:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:26:01,333 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:26:01,335 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:26:01,484 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:26:01,530 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:26:01,531 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:26:01,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:01 BoogieIcfgContainer [2024-09-20 13:26:01,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:26:01,532 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:26:01,532 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:26:01,533 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:26:01,533 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 01:25:58" (1/4) ... [2024-09-20 13:26:01,533 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6034c597 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:01, skipping insertion in model container [2024-09-20 13:26:01,533 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:26:00" (2/4) ... [2024-09-20 13:26:01,534 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6034c597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:01, skipping insertion in model container [2024-09-20 13:26:01,534 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01" (3/4) ... [2024-09-20 13:26:01,534 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6034c597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:01, skipping insertion in model container [2024-09-20 13:26:01,534 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:01" (4/4) ... [2024-09-20 13:26:01,536 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2024-09-20 13:26:01,539 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:26:01,540 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 13:26:01,540 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-20 13:26:01,540 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 13:26:01,588 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-20 13:26:01,589 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:01,589 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:01,590 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:01,591 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:01,592 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:01,616 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:01,620 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:01,621 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:01,621 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:01,621 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:01,622 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 13:26:01,623 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) [2024-09-20 13:26:01,628 INFO L158 Benchmark]: Toolchain (without parser) took 777.86ms. Allocated memory is still 67.1MB. Free memory was 45.3MB in the beginning and 31.5MB in the end (delta: 13.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-09-20 13:26:01,629 INFO L158 Benchmark]: Witness Parser took 0.34ms. Allocated memory is still 46.1MB. Free memory was 27.3MB in the beginning and 27.2MB in the end (delta: 60.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:01,629 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 46.1MB. Free memory is still 25.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:01,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.30ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 31.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:26:01,630 INFO L158 Benchmark]: Boogie Preprocessor took 57.45ms. Allocated memory is still 67.1MB. Free memory was 31.6MB in the beginning and 29.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:26:01,630 INFO L158 Benchmark]: RCFGBuilder took 366.52ms. Allocated memory is still 67.1MB. Free memory was 29.3MB in the beginning and 36.8MB in the end (delta: -7.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-20 13:26:01,631 INFO L158 Benchmark]: Referee took 94.98ms. Allocated memory is still 67.1MB. Free memory was 36.8MB in the beginning and 31.5MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-20 13:26:01,635 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 0.34ms. Allocated memory is still 46.1MB. Free memory was 27.3MB in the beginning and 27.2MB in the end (delta: 60.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 46.1MB. Free memory is still 25.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.30ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 31.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.45ms. Allocated memory is still 67.1MB. Free memory was 31.6MB in the beginning and 29.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 366.52ms. Allocated memory is still 67.1MB. Free memory was 29.3MB in the beginning and 36.8MB in the end (delta: -7.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Referee took 94.98ms. Allocated memory is still 67.1MB. Free memory was 36.8MB in the beginning and 31.5MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:26:01,663 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...