This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:07:43,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:07:43,817 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 10:07:43,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:07:43,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:07:43,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:07:43,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:07:43,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:07:43,848 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:07:43,849 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:07:43,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:07:43,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:07:43,850 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:07:43,851 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:07:43,852 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:07:43,852 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:07:43,852 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:07:43,852 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:07:43,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 10:07:43,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:07:43,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:07:43,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:07:43,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:07:43,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:07:43,856 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:07:43,856 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:07:43,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:07:43,856 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:07:43,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:07:43,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:07:43,857 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:07:43,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:07:43,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:07:43,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:43,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:07:43,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:07:43,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:07:43,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 10:07:43,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 10:07:43,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:07:43,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:07:43,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:07:43,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:07:43,860 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:07:44,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:07:44,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:07:44,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:07:44,103 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:07:44,104 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:07:44,105 INFO L431 ainManager$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 [2024-09-13 10:07:44,188 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:07:44,190 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:07:44,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-13 10:07:45,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:07:45,738 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:07:45,739 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-13 10:07:45,745 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/2de0f30dd/0955a7a8679e4dc08307a9a0e1334106/FLAGfe003ba67 [2024-09-13 10:07:45,760 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/2de0f30dd/0955a7a8679e4dc08307a9a0e1334106 [2024-09-13 10:07:45,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:07:45,761 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:07:45,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:45,767 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:07:45,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:07:45,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:44" (1/2) ... [2024-09-13 10:07:45,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d2053 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:45, skipping insertion in model container [2024-09-13 10:07:45,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:44" (1/2) ... [2024-09-13 10:07:45,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@30a2023e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:45, skipping insertion in model container [2024-09-13 10:07:45,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:45" (2/2) ... [2024-09-13 10:07:45,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d2053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:45, skipping insertion in model container [2024-09-13 10:07:45,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:45" (2/2) ... [2024-09-13 10:07:45,780 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:07:45,781 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_65) == __return_65)) [2024-09-13 10:07:45,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:07:45,949 WARN L247 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] [2024-09-13 10:07:45,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:45,966 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:07:45,981 WARN L247 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 [2024-09-13 10:07:46,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:46,022 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:07:46,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46 WrapperNode [2024-09-13 10:07:46,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:46,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:07:46,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:07:46,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:07:46,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,040 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,050 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]. [2024-09-13 10:07:46,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:07:46,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:07:46,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:07:46,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:07:46,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:46,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:07:46,088 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) [2024-09-13 10:07:46,091 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 [2024-09-13 10:07:46,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:07:46,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:07:46,153 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:07:46,153 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:07:46,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:07:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:07:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:07:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:07:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:07:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:07:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:07:46,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:07:46,156 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:07:46,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:07:46,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 10:07:46,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:07:46,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-13 10:07:46,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-13 10:07:46,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:07:46,260 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:07:46,262 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:07:46,422 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:07:46,498 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:07:46,498 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:07:46,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:46 BoogieIcfgContainer [2024-09-13 10:07:46,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:07:46,499 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:07:46,499 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:07:46,500 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:07:46,500 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:44" (1/4) ... [2024-09-13 10:07:46,500 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2b258c74 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:46, skipping insertion in model container [2024-09-13 10:07:46,500 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:07:45" (2/4) ... [2024-09-13 10:07:46,501 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2b258c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:46, skipping insertion in model container [2024-09-13 10:07:46,501 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (3/4) ... [2024-09-13 10:07:46,501 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2b258c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:46, skipping insertion in model container [2024-09-13 10:07:46,501 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:46" (4/4) ... [2024-09-13 10:07:46,505 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2024-09-13 10:07:46,509 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:07:46,510 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 10:07:46,510 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-13 10:07:46,514 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:07:46,586 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:07:46,587 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:07:46,587 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:07:46,588 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:07:46,590 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:07:46,592 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:46,616 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:07:46,617 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:46,618 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:07:46,618 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:07:46,618 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:07:46,619 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:07:46,619 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:144) 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) [2024-09-13 10:07:46,623 INFO L158 Benchmark]: Toolchain (without parser) took 860.79ms. Allocated memory is still 201.3MB. Free memory was 132.7MB in the beginning and 168.7MB in the end (delta: -36.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:46,625 INFO L158 Benchmark]: Witness Parser took 0.42ms. Allocated memory is still 109.1MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:46,626 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 177.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:46,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.86ms. Allocated memory is still 201.3MB. Free memory was 132.4MB in the beginning and 119.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:07:46,627 INFO L158 Benchmark]: Boogie Preprocessor took 33.25ms. Allocated memory is still 201.3MB. Free memory was 119.3MB in the beginning and 117.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:07:46,628 INFO L158 Benchmark]: RCFGBuilder took 440.77ms. Allocated memory is still 201.3MB. Free memory was 117.2MB in the beginning and 173.2MB in the end (delta: -56.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-09-13 10:07:46,628 INFO L158 Benchmark]: Referee took 122.29ms. Allocated memory is still 201.3MB. Free memory was 173.2MB in the beginning and 168.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 10:07:46,630 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 0.42ms. Allocated memory is still 109.1MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 177.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.86ms. Allocated memory is still 201.3MB. Free memory was 132.4MB in the beginning and 119.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.25ms. Allocated memory is still 201.3MB. Free memory was 119.3MB in the beginning and 117.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.77ms. Allocated memory is still 201.3MB. Free memory was 117.2MB in the beginning and 173.2MB in the end (delta: -56.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Referee took 122.29ms. Allocated memory is still 201.3MB. Free memory was 173.2MB in the beginning and 168.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:07:46,662 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-dev-1d5fa63-m [2024-09-13 10:07:49,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:07:49,106 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-13 10:07:49,110 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:07:49,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:07:49,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:07:49,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:07:49,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:07:49,143 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:07:49,143 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:07:49,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:07:49,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:07:49,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:07:49,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:07:49,146 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:07:49,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:07:49,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:07:49,147 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:07:49,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:07:49,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:07:49,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:07:49,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:07:49,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:07:49,152 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-13 10:07:49,152 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-13 10:07:49,152 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:07:49,152 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-13 10:07:49,153 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:07:49,153 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:07:49,153 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:07:49,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:07:49,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:07:49,154 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:07:49,154 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:07:49,154 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:07:49,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:49,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:07:49,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:07:49,155 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:07:49,155 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-13 10:07:49,159 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-13 10:07:49,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:07:49,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:07:49,160 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:07:49,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:07:49,160 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-13 10:07:49,161 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:07:49,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:07:49,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:07:49,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:07:49,459 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:07:49,459 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:07:49,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-13 10:07:51,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:07:51,193 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:07:51,194 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-13 10:07:51,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/b3ad47a8b/bd5453d98f0049718f581ff53556cf26/FLAG27fbc25a8 [2024-09-13 10:07:51,609 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/b3ad47a8b/bd5453d98f0049718f581ff53556cf26 [2024-09-13 10:07:51,612 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:07:51,612 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:07:51,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-13 10:07:51,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:07:51,661 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:07:51,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:51,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:07:51,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:07:51,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:51" (1/2) ... [2024-09-13 10:07:51,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518a22ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:51, skipping insertion in model container [2024-09-13 10:07:51,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:51" (1/2) ... [2024-09-13 10:07:51,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@287b6534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:51, skipping insertion in model container [2024-09-13 10:07:51,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:51" (2/2) ... [2024-09-13 10:07:51,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518a22ab and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:51, skipping insertion in model container [2024-09-13 10:07:51,679 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:51" (2/2) ... [2024-09-13 10:07:51,685 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:07:51,690 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_65) == __return_65)) [2024-09-13 10:07:51,707 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:07:51,860 WARN L247 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] [2024-09-13 10:07:51,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:51,876 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:07:51,889 WARN L247 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 [2024-09-13 10:07:51,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:51,921 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:07:51,922 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:51 WrapperNode [2024-09-13 10:07:51,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:51,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:07:51,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:07:51,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:07:51,934 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 13.09 10:07:51" (1/1) ... [2024-09-13 10:07:51,934 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 13.09 10:07:51" (1/1) ... [2024-09-13 10:07:51,944 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 13.09 10:07:51" (1/1) ... [2024-09-13 10:07:51,969 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]. [2024-09-13 10:07:51,969 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 13.09 10:07:51" (1/1) ... [2024-09-13 10:07:51,969 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 13.09 10:07:51" (1/1) ... [2024-09-13 10:07:51,981 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 13.09 10:07:51" (1/1) ... [2024-09-13 10:07:51,987 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 13.09 10:07:51" (1/1) ... [2024-09-13 10:07:51,988 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 13.09 10:07:51" (1/1) ... [2024-09-13 10:07:51,989 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 13.09 10:07:51" (1/1) ... [2024-09-13 10:07:51,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:07:51,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:07:51,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:07:51,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:07:51,998 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 13.09 10:07:51" (1/1) ... [2024-09-13 10:07:52,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:52,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:07:52,058 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) [2024-09-13 10:07:52,062 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 [2024-09-13 10:07:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:07:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:07:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:07:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:07:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:07:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:07:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:07:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:07:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:07:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:07:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:07:52,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:07:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:07:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:07:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-13 10:07:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:07:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-13 10:07:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-13 10:07:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:07:52,201 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:07:52,204 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:07:52,309 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:07:52,343 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:07:52,346 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:07:52,347 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:52 BoogieIcfgContainer [2024-09-13 10:07:52,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:07:52,348 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:07:52,348 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:07:52,349 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:07:52,349 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:07:51" (1/4) ... [2024-09-13 10:07:52,349 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57267d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:52, skipping insertion in model container [2024-09-13 10:07:52,349 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:51" (2/4) ... [2024-09-13 10:07:52,350 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57267d07 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:52, skipping insertion in model container [2024-09-13 10:07:52,350 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 13.09 10:07:51" (3/4) ... [2024-09-13 10:07:52,350 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57267d07 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:52, skipping insertion in model container [2024-09-13 10:07:52,350 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:52" (4/4) ... [2024-09-13 10:07:52,351 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2024-09-13 10:07:52,355 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:07:52,356 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 10:07:52,356 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-13 10:07:52,356 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:07:52,395 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:07:52,397 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:07:52,397 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:07:52,398 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:07:52,399 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:07:52,401 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:52,419 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:07:52,420 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:52,421 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:07:52,421 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:07:52,421 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:07:52,422 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:07:52,422 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:144) 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) [2024-09-13 10:07:52,431 INFO L158 Benchmark]: Toolchain (without parser) took 769.34ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 55.2MB in the end (delta: 8.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,431 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 62.9MB. Free memory is still 31.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:52,432 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 92.3MB. Free memory was 65.2MB in the beginning and 65.0MB in the end (delta: 224.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.37ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 49.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,433 INFO L158 Benchmark]: Boogie Preprocessor took 73.09ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 47.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,433 INFO L158 Benchmark]: RCFGBuilder took 350.70ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 60.6MB in the end (delta: -13.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,433 INFO L158 Benchmark]: Referee took 81.73ms. Allocated memory is still 92.3MB. Free memory was 60.6MB in the beginning and 55.2MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,435 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 0.19ms. Allocated memory is still 62.9MB. Free memory is still 31.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.19ms. Allocated memory is still 92.3MB. Free memory was 65.2MB in the beginning and 65.0MB in the end (delta: 224.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.37ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 49.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.09ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 47.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.70ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 60.6MB in the end (delta: -13.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Referee took 81.73ms. Allocated memory is still 92.3MB. Free memory was 60.6MB in the beginning and 55.2MB 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. [2024-09-13 10:07:52,460 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...