This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:30:58,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:30:58,229 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-10-15 15:30:58,234 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:30:58,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:30:58,266 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:30:58,266 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:30:58,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:30:58,267 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:30:58,268 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:30:58,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:30:58,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:30:58,270 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:30:58,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:30:58,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:30:58,273 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:30:58,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 15:30:58,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:30:58,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:30:58,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:30:58,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:30:58,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:30:58,275 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:30:58,279 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:30:58,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:30:58,280 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:30:58,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:30:58,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:30:58,280 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:30:58,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:30:58,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:30:58,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:30:58,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:30:58,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:30:58,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:30:58,646 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:30:58,647 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:30:58,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-10-15 15:31:00,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:31:00,456 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:31:00,457 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-10-15 15:31:00,468 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/de553b3c0/ccbc1d6a44254973a0c4d9f88c1d712c/FLAG918fb6ab0 [2024-10-15 15:31:00,488 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/de553b3c0/ccbc1d6a44254973a0c4d9f88c1d712c [2024-10-15 15:31:00,491 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:31:00,492 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:31:00,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-reducer.yml/witness-2.1.yml [2024-10-15 15:31:00,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:31:00,548 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:31:00,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:00,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:31:00,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:31:00,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:00" (1/2) ... [2024-10-15 15:31:00,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a6589a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:00, skipping insertion in model container [2024-10-15 15:31:00,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:00" (1/2) ... [2024-10-15 15:31:00,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@719a2c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:00, skipping insertion in model container [2024-10-15 15:31:00,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:31:00" (2/2) ... [2024-10-15 15:31:00,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a6589a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00, skipping insertion in model container [2024-10-15 15:31:00,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:31:00" (2/2) ... [2024-10-15 15:31:00,569 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:31:00,570 INFO L1541 ArrayList]: Location invariant before [L33-L67] ((main__x < 0) || (0 < main__y)) [2024-10-15 15:31:00,572 INFO L1541 ArrayList]: Function contract at [L14]: requires null, ensures (__return_main == \old(__return_main)) [2024-10-15 15:31:00,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:31:00,781 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2024-10-15 15:31:00,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:00,800 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-10-15 15:31:00,849 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] Start Parsing Local [2024-10-15 15:31:00,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:00,874 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:31:00,875 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00 WrapperNode [2024-10-15 15:31:00,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:00,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:00,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:31:00,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:31:00,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,897 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:31:00,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:00,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:31:00,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:31:00,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:31:00,922 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 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,923 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 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,926 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 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,934 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-10-15 15:31:00,935 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 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,935 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 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,942 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 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,944 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 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,949 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 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,950 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 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:31:00,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:31:00,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:31:00,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:31:00,953 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 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:31:00,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:31:00,984 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) [2024-10-15 15:31:00,987 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 [2024-10-15 15:31:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:31:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:31:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:31:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-15 15:31:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:31:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:31:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:31:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:31:01,096 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:31:01,098 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:31:01,255 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:31:01,295 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:31:01,295 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:31:01,296 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:01 BoogieIcfgContainer [2024-10-15 15:31:01,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:31:01,296 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:31:01,296 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:31:01,299 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:31:01,299 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:31:00" (1/4) ... [2024-10-15 15:31:01,300 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21f8cb4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:31:01, skipping insertion in model container [2024-10-15 15:31:01,300 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:31:00" (2/4) ... [2024-10-15 15:31:01,300 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21f8cb4d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:01, skipping insertion in model container [2024-10-15 15:31:01,300 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 15.10 03:31:00" (3/4) ... [2024-10-15 15:31:01,300 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21f8cb4d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:01, skipping insertion in model container [2024-10-15 15:31:01,302 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:01" (4/4) ... [2024-10-15 15:31:01,304 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2024-10-15 15:31:01,308 INFO L113 InvariantChecker]: Found 0 loops. [2024-10-15 15:31:01,309 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 16 edges. [2024-10-15 15:31:01,310 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-10-15 15:31:01,310 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 11 edges. [2024-10-15 15:31:01,312 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-10-15 15:31:01,363 INFO L309 BlockEncoder]: Initial Icfg 12 locations, 16 edges [2024-10-15 15:31:01,366 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:31:01,367 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:31:01,367 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:31:01,368 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:31:01,370 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:01,421 INFO L101 BaseMinimizeStates]: Removed 28 edges and 9 locations by large block encoding [2024-10-15 15:31:01,423 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:01,424 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:31:01,425 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:31:01,425 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:31:01,430 INFO L309 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-10-15 15:31:01,431 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:168) 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) [2024-10-15 15:31:01,437 INFO L158 Benchmark]: Toolchain (without parser) took 887.62ms. Allocated memory is still 94.4MB. Free memory was 63.7MB in the beginning and 54.6MB in the end (delta: 9.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-10-15 15:31:01,438 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory was 44.3MB in the beginning and 44.3MB in the end (delta: 46.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:01,439 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 94.4MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:01,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.16ms. Allocated memory is still 94.4MB. Free memory was 63.5MB in the beginning and 49.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-15 15:31:01,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.80ms. Allocated memory is still 94.4MB. Free memory was 49.2MB in the beginning and 48.2MB in the end (delta: 959.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:01,441 INFO L158 Benchmark]: Boogie Preprocessor took 51.95ms. Allocated memory is still 94.4MB. Free memory was 48.2MB in the beginning and 72.5MB in the end (delta: -24.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-15 15:31:01,442 INFO L158 Benchmark]: RCFGBuilder took 343.63ms. Allocated memory is still 94.4MB. Free memory was 72.5MB in the beginning and 61.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-15 15:31:01,442 INFO L158 Benchmark]: Referee took 139.01ms. Allocated memory is still 94.4MB. Free memory was 61.8MB in the beginning and 54.6MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-15 15:31:01,446 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:168) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 60.8MB. Free memory was 44.3MB in the beginning and 44.3MB in the end (delta: 46.5kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 94.4MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.16ms. Allocated memory is still 94.4MB. Free memory was 63.5MB in the beginning and 49.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.80ms. Allocated memory is still 94.4MB. Free memory was 49.2MB in the beginning and 48.2MB in the end (delta: 959.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.95ms. Allocated memory is still 94.4MB. Free memory was 48.2MB in the beginning and 72.5MB in the end (delta: -24.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 343.63ms. Allocated memory is still 94.4MB. Free memory was 72.5MB in the beginning and 61.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 139.01ms. Allocated memory is still 94.4MB. Free memory was 61.8MB in the beginning and 54.6MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-15 15:31:01,478 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 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:31:03,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:31:03,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-10-15 15:31:03,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:31:03,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:31:03,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:31:03,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:31:03,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:31:03,700 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:31:03,701 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:31:03,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:31:03,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:31:03,703 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:31:03,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:31:03,707 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:31:03,707 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:31:03,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:31:03,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:31:03,708 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:31:03,708 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:31:03,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:31:03,709 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-15 15:31:03,709 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-15 15:31:03,710 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:31:03,710 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-15 15:31:03,710 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:31:03,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:31:03,711 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:31:03,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:31:03,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:31:03,711 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:31:03,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:31:03,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:31:03,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:31:04,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:31:04,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:31:04,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:31:04,074 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:31:04,075 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:31:04,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-reducer.yml/witness-2.1.yml [2024-10-15 15:31:04,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:31:04,140 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:31:04,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-10-15 15:31:05,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:31:05,955 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:31:05,956 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-10-15 15:31:05,964 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/8c24be711/f9a6bddfdeac4955b52bd21ce435845c/FLAGfed29c38d [2024-10-15 15:31:05,984 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/8c24be711/f9a6bddfdeac4955b52bd21ce435845c [2024-10-15 15:31:05,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:31:05,986 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:31:05,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:05,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:31:05,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:31:05,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:31:04" (1/2) ... [2024-10-15 15:31:05,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24410bd8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:05, skipping insertion in model container [2024-10-15 15:31:05,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:31:04" (1/2) ... [2024-10-15 15:31:06,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b99bbf3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:05, skipping insertion in model container [2024-10-15 15:31:06,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:05" (2/2) ... [2024-10-15 15:31:06,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24410bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06, skipping insertion in model container [2024-10-15 15:31:06,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:05" (2/2) ... [2024-10-15 15:31:06,011 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:31:06,012 INFO L1541 ArrayList]: Location invariant before [L33-L67] ((main__x < 0) || (0 < main__y)) [2024-10-15 15:31:06,012 INFO L1541 ArrayList]: Function contract at [L14]: requires null, ensures (__return_main == \old(__return_main)) [2024-10-15 15:31:06,033 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:31:06,222 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2024-10-15 15:31:06,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:06,239 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-10-15 15:31:06,281 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] Start Parsing Local [2024-10-15 15:31:06,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:06,307 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:31:06,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06 WrapperNode [2024-10-15 15:31:06,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:06,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:06,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:31:06,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:31:06,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,329 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:31:06,330 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:06,331 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:31:06,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:31:06,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:31:06,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,355 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-10-15 15:31:06,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,365 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:31:06,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:31:06,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:31:06,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:31:06,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (1/1) ... [2024-10-15 15:31:06,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:31:06,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:31:06,403 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) [2024-10-15 15:31:06,409 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 [2024-10-15 15:31:06,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:31:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-15 15:31:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:31:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:31:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:31:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:31:06,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:31:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:31:06,521 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:31:06,523 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:31:06,702 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:31:06,749 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:31:06,750 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:31:06,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:06 BoogieIcfgContainer [2024-10-15 15:31:06,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:31:06,751 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:31:06,753 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:31:06,753 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:31:06,754 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:31:04" (1/4) ... [2024-10-15 15:31:06,754 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@48491435 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:06, skipping insertion in model container [2024-10-15 15:31:06,754 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:31:05" (2/4) ... [2024-10-15 15:31:06,755 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@48491435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:31:06, skipping insertion in model container [2024-10-15 15:31:06,755 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:06" (3/4) ... [2024-10-15 15:31:06,756 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@48491435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:31:06, skipping insertion in model container [2024-10-15 15:31:06,756 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:06" (4/4) ... [2024-10-15 15:31:06,757 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2024-10-15 15:31:06,761 INFO L113 InvariantChecker]: Found 0 loops. [2024-10-15 15:31:06,762 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 16 edges. [2024-10-15 15:31:06,763 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-10-15 15:31:06,763 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 11 edges. [2024-10-15 15:31:06,763 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-10-15 15:31:06,813 INFO L309 BlockEncoder]: Initial Icfg 12 locations, 16 edges [2024-10-15 15:31:06,818 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:31:06,818 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:31:06,819 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:31:06,819 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:31:06,821 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:06,868 INFO L101 BaseMinimizeStates]: Removed 28 edges and 9 locations by large block encoding [2024-10-15 15:31:06,869 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:06,870 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:31:06,870 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:31:06,870 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:31:06,874 INFO L309 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-10-15 15:31:06,875 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:168) 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) [2024-10-15 15:31:06,882 INFO L158 Benchmark]: Toolchain (without parser) took 895.66ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 66.9MB in the end (delta: 10.5MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,883 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 62.9MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:06,885 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 62.9MB. Free memory was 42.4MB in the beginning and 42.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:06,886 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.95ms. Allocated memory is still 102.8MB. Free memory was 77.2MB in the beginning and 62.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.89ms. Allocated memory is still 102.8MB. Free memory was 62.5MB in the beginning and 61.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,888 INFO L158 Benchmark]: Boogie Preprocessor took 40.12ms. Allocated memory is still 102.8MB. Free memory was 61.3MB in the beginning and 59.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,888 INFO L158 Benchmark]: RCFGBuilder took 378.81ms. Allocated memory is still 102.8MB. Free memory was 59.5MB in the beginning and 75.3MB in the end (delta: -15.7MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,889 INFO L158 Benchmark]: Referee took 129.27ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 66.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,893 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:168) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 62.9MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.44ms. Allocated memory is still 62.9MB. Free memory was 42.4MB in the beginning and 42.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.95ms. Allocated memory is still 102.8MB. Free memory was 77.2MB in the beginning and 62.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.89ms. Allocated memory is still 102.8MB. Free memory was 62.5MB in the beginning and 61.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.12ms. Allocated memory is still 102.8MB. Free memory was 61.3MB in the beginning and 59.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.81ms. Allocated memory is still 102.8MB. Free memory was 59.5MB in the beginning and 75.3MB in the end (delta: -15.7MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Referee took 129.27ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 66.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-15 15:31:06,926 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...