This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:31:08,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:31:08,931 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-10-15 15:31:08,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:31:08,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:31:08,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:31:08,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:31:08,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:31:08,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:31:08,959 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:31:08,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:31:08,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:31:08,962 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:31:08,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:31:08,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:31:08,965 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:31:08,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 15:31:08,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:31:08,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:31:08,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:31:08,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:31:08,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:31:08,967 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:31:08,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:31:08,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:31:08,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:31:08,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:31:08,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:31:08,968 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:31:08,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:31:08,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:31:08,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:31:09,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:31:09,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:31:09,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:31:09,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:31:09,224 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:31:09,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-10-15 15:31:10,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:31:10,659 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:31:10,659 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-10-15 15:31:10,665 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/3ee013768/3c34d3ea022744c392d96bbca0df70bf/FLAGea901b41a [2024-10-15 15:31:10,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/3ee013768/3c34d3ea022744c392d96bbca0df70bf [2024-10-15 15:31:10,677 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:31:10,677 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:31:10,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-10-15 15:31:10,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:31:10,713 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:31:10,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:10,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:31:10,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:31:10,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:10" (1/2) ... [2024-10-15 15:31:10,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26443195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:10, skipping insertion in model container [2024-10-15 15:31:10,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:10" (1/2) ... [2024-10-15 15:31:10,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@540678f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:10, skipping insertion in model container [2024-10-15 15:31:10,723 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 03:31:10" (2/2) ... [2024-10-15 15:31:10,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26443195 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:10, skipping insertion in model container [2024-10-15 15:31:10,723 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 03:31:10" (2/2) ... [2024-10-15 15:31:10,730 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:31:10,734 INFO L1541 ArrayList]: Location invariant before [L54-L78] ((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-10-15 15:31:10,736 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-10-15 15:31:10,750 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:31:10,899 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-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-10-15 15:31:10,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:10,914 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-10-15 15:31:10,953 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-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] Start Parsing Local [2024-10-15 15:31:10,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:10,974 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:31:10,974 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:10 WrapperNode [2024-10-15 15:31:10,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:10,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:10,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:31:10,976 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:31:10,982 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 03:31:10" (1/1) ... [2024-10-15 15:31:10,987 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 03:31:10" (1/1) ... [2024-10-15 15:31:10,992 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:31:10,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:10,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:31:10,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:31:10,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:31:11,001 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 03:31:10" (1/1) ... [2024-10-15 15:31:11,002 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 03:31:10" (1/1) ... [2024-10-15 15:31:11,003 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 03:31:10" (1/1) ... [2024-10-15 15:31:11,009 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 15:31:11,009 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 03:31:10" (1/1) ... [2024-10-15 15:31:11,009 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 03:31:10" (1/1) ... [2024-10-15 15:31:11,016 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 03:31:10" (1/1) ... [2024-10-15 15:31:11,021 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 03:31:10" (1/1) ... [2024-10-15 15:31:11,022 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 03:31:10" (1/1) ... [2024-10-15 15:31:11,022 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 03:31:10" (1/1) ... [2024-10-15 15:31:11,023 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:31:11,024 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:31:11,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:31:11,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:31:11,027 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 03:31:10" (1/1) ... [2024-10-15 15:31:11,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:31:11,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:31:11,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-15 15:31:11,062 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-15 15:31:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:31:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:31:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:31:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-15 15:31:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:31:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:31:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:31:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:31:11,164 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:31:11,168 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:31:11,311 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:31:11,335 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:31:11,335 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:31:11,336 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:11 BoogieIcfgContainer [2024-10-15 15:31:11,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:31:11,337 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:31:11,337 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:31:11,338 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:31:11,338 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:31:10" (1/4) ... [2024-10-15 15:31:11,339 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@49f8488a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:31:11, skipping insertion in model container [2024-10-15 15:31:11,340 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 03:31:10" (2/4) ... [2024-10-15 15:31:11,340 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@49f8488a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:11, skipping insertion in model container [2024-10-15 15:31:11,340 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 03:31:10" (3/4) ... [2024-10-15 15:31:11,340 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@49f8488a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:11, skipping insertion in model container [2024-10-15 15:31:11,341 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 03:31:11" (4/4) ... [2024-10-15 15:31:11,342 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-10-15 15:31:11,346 INFO L113 InvariantChecker]: Found 0 loops. [2024-10-15 15:31:11,347 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 22 edges. [2024-10-15 15:31:11,347 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-10-15 15:31:11,348 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-10-15 15:31:11,348 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-10-15 15:31:11,393 INFO L309 BlockEncoder]: Initial Icfg 14 locations, 22 edges [2024-10-15 15:31:11,394 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:31:11,394 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:31:11,394 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:31:11,395 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:31:11,397 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:11,456 INFO L101 BaseMinimizeStates]: Removed 47 edges and 11 locations by large block encoding [2024-10-15 15:31:11,457 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:11,457 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:31:11,457 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:31:11,458 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:31:11,462 INFO L309 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-10-15 15:31:11,464 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 15:31:11,468 INFO L158 Benchmark]: Toolchain (without parser) took 753.86ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 45.8MB in the beginning and 59.7MB in the end (delta: -13.9MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2024-10-15 15:31:11,469 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 39.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:11,469 INFO L158 Benchmark]: Witness Parser took 0.08ms. Allocated memory is still 67.1MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:11,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.60ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 31.0MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-15 15:31:11,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.11ms. Allocated memory is still 67.1MB. Free memory was 31.0MB in the beginning and 30.0MB in the end (delta: 984.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:11,470 INFO L158 Benchmark]: Boogie Preprocessor took 29.35ms. Allocated memory is still 67.1MB. Free memory was 30.0MB in the beginning and 28.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:11,471 INFO L158 Benchmark]: RCFGBuilder took 312.28ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 28.4MB in the beginning and 70.4MB in the end (delta: -42.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-15 15:31:11,471 INFO L158 Benchmark]: Referee took 130.18ms. Allocated memory is still 98.6MB. Free memory was 70.4MB in the beginning and 59.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-15 15:31:11,473 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 0.12ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 39.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.08ms. Allocated memory is still 67.1MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.60ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 31.0MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.11ms. Allocated memory is still 67.1MB. Free memory was 31.0MB in the beginning and 30.0MB in the end (delta: 984.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.35ms. Allocated memory is still 67.1MB. Free memory was 30.0MB in the beginning and 28.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 312.28ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 28.4MB in the beginning and 70.4MB in the end (delta: -42.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 130.18ms. Allocated memory is still 98.6MB. Free memory was 70.4MB in the beginning and 59.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-15 15:31:11,500 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 15:31:13,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:31:13,268 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-10-15 15:31:13,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:31:13,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:31:13,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:31:13,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:31:13,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:31:13,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:31:13,297 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:31:13,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:31:13,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:31:13,298 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:31:13,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:31:13,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:31:13,299 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:31:13,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:31:13,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:31:13,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:31:13,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:31:13,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:31:13,304 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-15 15:31:13,305 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-15 15:31:13,305 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:31:13,305 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-15 15:31:13,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:31:13,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:31:13,306 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:31:13,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:31:13,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:31:13,307 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:31:13,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:31:13,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:31:13,307 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:31:13,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:31:13,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:31:13,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:31:13,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:31:13,593 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:31:13,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-10-15 15:31:14,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:31:15,051 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:31:15,055 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-10-15 15:31:15,062 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/bb1721d3c/34c2ecbe60904b3abf27623e6f5e2eac/FLAGec53bc17b [2024-10-15 15:31:15,458 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/bb1721d3c/34c2ecbe60904b3abf27623e6f5e2eac [2024-10-15 15:31:15,460 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:31:15,461 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:31:15,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-10-15 15:31:15,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:31:15,503 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:31:15,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:15,505 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:31:15,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:31:15,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:15" (1/2) ... [2024-10-15 15:31:15,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313e7c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:15, skipping insertion in model container [2024-10-15 15:31:15,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:15" (1/2) ... [2024-10-15 15:31:15,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48bcf6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:15, skipping insertion in model container [2024-10-15 15:31:15,512 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 03:31:15" (2/2) ... [2024-10-15 15:31:15,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313e7c86 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:15, skipping insertion in model container [2024-10-15 15:31:15,513 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 03:31:15" (2/2) ... [2024-10-15 15:31:15,519 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:31:15,523 INFO L1541 ArrayList]: Location invariant before [L54-L78] ((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-10-15 15:31:15,523 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-10-15 15:31:15,541 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:31:15,702 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-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-10-15 15:31:15,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:15,726 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-10-15 15:31:15,762 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-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] Start Parsing Local [2024-10-15 15:31:15,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:15,780 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:31:15,781 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:15 WrapperNode [2024-10-15 15:31:15,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:15,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:15,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:31:15,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:31:15,787 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,794 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,799 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:31:15,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:15,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:31:15,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:31:15,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:31:15,807 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,808 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,810 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,823 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 15:31:15,823 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,823 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,829 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,833 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,834 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,835 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:31:15,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:31:15,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:31:15,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:31:15,842 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 03:31:15" (1/1) ... [2024-10-15 15:31:15,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:31:15,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:31:15,866 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 15:31:15,872 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 15:31:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:31:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-15 15:31:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:31:15,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:31:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:31:15,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:31:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:31:15,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:31:15,968 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:31:15,970 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:31:16,685 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:31:16,714 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:31:16,714 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:31:16,714 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:16 BoogieIcfgContainer [2024-10-15 15:31:16,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:31:16,715 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:31:16,715 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:31:16,716 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:31:16,716 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:31:15" (1/4) ... [2024-10-15 15:31:16,716 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4f576f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:31:16, skipping insertion in model container [2024-10-15 15:31:16,716 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 03:31:15" (2/4) ... [2024-10-15 15:31:16,717 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4f576f96 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:16, skipping insertion in model container [2024-10-15 15:31:16,717 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 03:31:15" (3/4) ... [2024-10-15 15:31:16,717 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4f576f96 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:16, skipping insertion in model container [2024-10-15 15:31:16,717 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 03:31:16" (4/4) ... [2024-10-15 15:31:16,718 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-10-15 15:31:16,724 INFO L113 InvariantChecker]: Found 0 loops. [2024-10-15 15:31:16,725 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 22 edges. [2024-10-15 15:31:16,725 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-10-15 15:31:16,725 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-10-15 15:31:16,725 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-10-15 15:31:16,767 INFO L309 BlockEncoder]: Initial Icfg 14 locations, 22 edges [2024-10-15 15:31:16,768 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:31:16,768 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:31:16,769 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:31:16,769 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:31:16,771 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:16,849 INFO L101 BaseMinimizeStates]: Removed 47 edges and 11 locations by large block encoding [2024-10-15 15:31:16,851 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:16,851 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:31:16,851 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:31:16,852 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:31:16,856 INFO L309 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-10-15 15:31:16,860 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 15:31:16,863 INFO L158 Benchmark]: Toolchain (without parser) took 1358.90ms. Allocated memory is still 86.0MB. Free memory was 55.2MB in the beginning and 57.0MB in the end (delta: -1.7MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2024-10-15 15:31:16,863 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 32.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:16,864 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 86.0MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:16,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.06ms. Allocated memory is still 86.0MB. Free memory was 55.0MB in the beginning and 62.3MB in the end (delta: -7.2MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-10-15 15:31:16,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.38ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 61.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:16,865 INFO L158 Benchmark]: Boogie Preprocessor took 40.37ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 59.1MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-15 15:31:16,866 INFO L158 Benchmark]: RCFGBuilder took 873.67ms. Allocated memory is still 86.0MB. Free memory was 59.1MB in the beginning and 45.1MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-15 15:31:16,867 INFO L158 Benchmark]: Referee took 146.37ms. Allocated memory is still 86.0MB. Free memory was 45.1MB in the beginning and 57.0MB in the end (delta: -11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-15 15:31:16,869 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 0.17ms. Allocated memory is still 62.9MB. Free memory is still 32.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 86.0MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.06ms. Allocated memory is still 86.0MB. Free memory was 55.0MB in the beginning and 62.3MB in the end (delta: -7.2MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.38ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 61.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.37ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 59.1MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 873.67ms. Allocated memory is still 86.0MB. Free memory was 59.1MB in the beginning and 45.1MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 146.37ms. Allocated memory is still 86.0MB. Free memory was 45.1MB in the beginning and 57.0MB in the end (delta: -11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-15 15:31:16,897 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...