This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:27:19,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:19,166 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 00:27:19,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:19,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:19,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:19,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:19,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:19,209 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:19,210 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:19,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:19,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:19,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:19,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:19,215 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:19,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:19,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:19,216 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:19,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 00:27:19,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:19,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:19,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:19,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:19,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:19,218 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:19,218 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:19,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:19,219 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:19,219 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:19,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:19,219 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:19,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:19,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:19,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:19,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:19,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:19,221 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:19,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 00:27:19,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 00:27:19,223 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:19,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:19,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:19,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:19,225 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:19,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:19,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:19,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:19,602 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:19,607 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:19,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-25 00:27:19,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:19,658 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:19,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-25 00:27:21,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:21,360 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:21,360 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-25 00:27:21,375 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/552f87ff7/418901c096fe4243afa64d82e8442983/FLAG56801d59c [2024-09-25 00:27:21,387 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/552f87ff7/418901c096fe4243afa64d82e8442983 [2024-09-25 00:27:21,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:21,389 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:21,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:21,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:21,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:21,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:19" (1/2) ... [2024-09-25 00:27:21,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fb7199 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:21, skipping insertion in model container [2024-09-25 00:27:21,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:19" (1/2) ... [2024-09-25 00:27:21,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@644b4685 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:21, skipping insertion in model container [2024-09-25 00:27:21,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:21" (2/2) ... [2024-09-25 00:27:21,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fb7199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21, skipping insertion in model container [2024-09-25 00:27:21,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:21" (2/2) ... [2024-09-25 00:27:21,410 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:21,411 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-25 00:27:21,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:21,588 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.p+cfa-reducer.c[989,1002] [2024-09-25 00:27:21,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:21,613 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:21,632 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.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-25 00:27:21,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:21,679 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:21,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21 WrapperNode [2024-09-25 00:27:21,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:21,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:21,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:21,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:21,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (1/1) ... [2024-09-25 00:27:21,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (1/1) ... [2024-09-25 00:27:21,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (1/1) ... [2024-09-25 00:27:21,714 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]. [2024-09-25 00:27:21,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (1/1) ... [2024-09-25 00:27:21,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (1/1) ... [2024-09-25 00:27:21,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (1/1) ... [2024-09-25 00:27:21,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (1/1) ... [2024-09-25 00:27:21,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (1/1) ... [2024-09-25 00:27:21,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (1/1) ... [2024-09-25 00:27:21,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:21,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:21,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:21,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:21,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (1/1) ... [2024-09-25 00:27:21,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:21,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:21,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 00:27:21,761 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 00:27:21,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:21,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:21,802 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:21,802 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:21,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:21,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-25 00:27:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-25 00:27:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-25 00:27:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:21,883 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:21,886 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:22,024 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:22,061 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:22,062 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:22,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:22 BoogieIcfgContainer [2024-09-25 00:27:22,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:22,063 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:22,063 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:22,064 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:22,064 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:19" (1/4) ... [2024-09-25 00:27:22,065 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@171f5a69 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:22, skipping insertion in model container [2024-09-25 00:27:22,065 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:21" (2/4) ... [2024-09-25 00:27:22,068 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@171f5a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:22, skipping insertion in model container [2024-09-25 00:27:22,068 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21" (3/4) ... [2024-09-25 00:27:22,069 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@171f5a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:22, skipping insertion in model container [2024-09-25 00:27:22,069 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:22" (4/4) ... [2024-09-25 00:27:22,070 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-25 00:27:22,073 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:22,073 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 00:27:22,074 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-25 00:27:22,074 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:22,113 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-25 00:27:22,114 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:22,114 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:22,115 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:22,116 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:22,118 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:22,143 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:27:22,144 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:22,144 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:22,144 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:22,145 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:22,146 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:22,146 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) [2024-09-25 00:27:22,151 INFO L158 Benchmark]: Toolchain (without parser) took 761.09ms. Allocated memory is still 172.0MB. Free memory was 143.3MB in the beginning and 130.3MB in the end (delta: 12.9MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,152 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 172.0MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:22,152 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:22,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.36ms. Allocated memory is still 172.0MB. Free memory was 143.3MB in the beginning and 129.8MB in the end (delta: 13.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,154 INFO L158 Benchmark]: Boogie Preprocessor took 42.46ms. Allocated memory is still 172.0MB. Free memory was 129.8MB in the beginning and 127.8MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,154 INFO L158 Benchmark]: RCFGBuilder took 336.93ms. Allocated memory is still 172.0MB. Free memory was 127.8MB in the beginning and 135.3MB in the end (delta: -7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,154 INFO L158 Benchmark]: Referee took 86.28ms. Allocated memory is still 172.0MB. Free memory was 135.3MB in the beginning and 130.3MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,157 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 0.22ms. Allocated memory is still 172.0MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.36ms. Allocated memory is still 172.0MB. Free memory was 143.3MB in the beginning and 129.8MB in the end (delta: 13.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.46ms. Allocated memory is still 172.0MB. Free memory was 129.8MB in the beginning and 127.8MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 336.93ms. Allocated memory is still 172.0MB. Free memory was 127.8MB in the beginning and 135.3MB in the end (delta: -7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 86.28ms. Allocated memory is still 172.0MB. Free memory was 135.3MB in the beginning and 130.3MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:27:22,188 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:27:24,470 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:24,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 00:27:24,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:24,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:24,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:24,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:24,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:24,604 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:24,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:24,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:24,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:24,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:24,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:24,607 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:24,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:24,608 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:24,608 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:24,608 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:24,609 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:24,609 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:24,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:24,610 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:24,611 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 00:27:24,611 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 00:27:24,611 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:24,612 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 00:27:24,612 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:24,612 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:24,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:24,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:24,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:24,613 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:24,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:24,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:24,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:24,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:24,616 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:24,616 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:24,616 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 00:27:24,616 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 00:27:24,617 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:24,617 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:24,617 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:24,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:24,618 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 00:27:24,618 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:24,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:24,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:24,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:24,993 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:24,994 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:24,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-25 00:27:26,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:26,808 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:26,809 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-25 00:27:26,816 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/bea5d2d24/7d283d077519477c82d4dfa4044475b1/FLAG9025203d2 [2024-09-25 00:27:27,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/bea5d2d24/7d283d077519477c82d4dfa4044475b1 [2024-09-25 00:27:27,165 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:27,165 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:27,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-25 00:27:27,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:27,220 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:27,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:27,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:27,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:27,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:27" (1/2) ... [2024-09-25 00:27:27,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d1abd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27, skipping insertion in model container [2024-09-25 00:27:27,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:27" (1/2) ... [2024-09-25 00:27:27,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42e9e93c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27, skipping insertion in model container [2024-09-25 00:27:27,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:27" (2/2) ... [2024-09-25 00:27:27,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d1abd4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27, skipping insertion in model container [2024-09-25 00:27:27,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:27" (2/2) ... [2024-09-25 00:27:27,246 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:27,247 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-25 00:27:27,266 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:27,452 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.p+cfa-reducer.c[989,1002] [2024-09-25 00:27:27,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:27,477 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:27,497 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.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-25 00:27:27,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:27,548 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:27,549 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27 WrapperNode [2024-09-25 00:27:27,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:27,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:27,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:27,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:27,565 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,574 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,593 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]. [2024-09-25 00:27:27,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:27,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:27,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:27,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:27,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:27,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:27,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 00:27:27,655 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 00:27:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:27,707 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:27,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:27,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-25 00:27:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-25 00:27:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-25 00:27:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:27,792 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:27,796 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:28,029 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:28,083 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:28,085 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:28,086 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:28 BoogieIcfgContainer [2024-09-25 00:27:28,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:28,087 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:28,087 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:28,088 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:28,088 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:27" (1/4) ... [2024-09-25 00:27:28,090 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@176e9c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:28, skipping insertion in model container [2024-09-25 00:27:28,090 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:27" (2/4) ... [2024-09-25 00:27:28,090 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@176e9c5a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:28, skipping insertion in model container [2024-09-25 00:27:28,090 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27" (3/4) ... [2024-09-25 00:27:28,090 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@176e9c5a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:28, skipping insertion in model container [2024-09-25 00:27:28,091 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:28" (4/4) ... [2024-09-25 00:27:28,092 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-25 00:27:28,096 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:28,097 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 00:27:28,097 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-25 00:27:28,098 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:28,141 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-25 00:27:28,145 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:28,145 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:28,146 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:28,147 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:28,149 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,171 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:27:28,173 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,173 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:28,173 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:28,174 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:28,175 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:28,175 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) [2024-09-25 00:27:28,180 INFO L158 Benchmark]: Toolchain (without parser) took 959.50ms. Allocated memory is still 90.2MB. Free memory was 65.2MB in the beginning and 58.1MB in the end (delta: 7.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2024-09-25 00:27:28,180 INFO L158 Benchmark]: CDTParser took 1.07ms. Allocated memory is still 62.9MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:28,181 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 90.2MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:28,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.81ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 51.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 00:27:28,182 INFO L158 Benchmark]: Boogie Preprocessor took 60.34ms. Allocated memory is still 90.2MB. Free memory was 51.3MB in the beginning and 49.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:28,182 INFO L158 Benchmark]: RCFGBuilder took 474.69ms. Allocated memory is still 90.2MB. Free memory was 49.1MB in the beginning and 63.6MB in the end (delta: -14.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:28,183 INFO L158 Benchmark]: Referee took 91.26ms. Allocated memory is still 90.2MB. Free memory was 63.6MB in the beginning and 58.1MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-25 00:27:28,185 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 1.07ms. Allocated memory is still 62.9MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 90.2MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.81ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 51.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.34ms. Allocated memory is still 90.2MB. Free memory was 51.3MB in the beginning and 49.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.69ms. Allocated memory is still 90.2MB. Free memory was 49.1MB in the beginning and 63.6MB in the end (delta: -14.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Referee took 91.26ms. Allocated memory is still 90.2MB. Free memory was 63.6MB in the beginning and 58.1MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:27:28,217 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...