This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:31:08,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:31:08,956 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-10-15 15:31:08,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:31:08,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:31:08,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:31:08,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:31:08,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:31:08,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:31:08,989 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:31:08,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:31:08,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:31:08,990 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:31:08,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:31:08,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:31:08,991 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:31:08,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 15:31:08,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:31:08,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:31:08,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:31:08,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:31:08,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:31:08,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:31:08,997 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:31:08,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:31:08,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:31:08,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:31:08,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:31:08,997 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:31:08,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:31:08,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:31:08,998 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:31:09,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:31:09,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:31:09,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:31:09,296 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:31:09,299 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:31:09,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-10-15 15:31:10,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:31:10,988 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:31:10,990 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-10-15 15:31:11,001 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/a44554370/c529e7fe138e4056abd191fb985ed967/FLAG7d0db03ca [2024-10-15 15:31:11,018 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/a44554370/c529e7fe138e4056abd191fb985ed967 [2024-10-15 15:31:11,021 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:31:11,021 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:31:11,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-10-15 15:31:11,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:31:11,072 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:31:11,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:11,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:31:11,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:31:11,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:11" (1/2) ... [2024-10-15 15:31:11,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ab87f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:11, skipping insertion in model container [2024-10-15 15:31:11,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:11" (1/2) ... [2024-10-15 15:31:11,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3080459f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:11, skipping insertion in model container [2024-10-15 15:31:11,083 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 03:31:11" (2/2) ... [2024-10-15 15:31:11,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ab87f6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:11, skipping insertion in model container [2024-10-15 15:31:11,086 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 03:31:11" (2/2) ... [2024-10-15 15:31:11,094 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:31:11,095 INFO L1541 ArrayList]: Location invariant before [L34-L58] (((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (\old(__return_80) == __return_80)) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-10-15 15:31:11,097 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-10-15 15:31:11,116 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:31:11,249 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+cfa-reducer.c[1014,1027] [2024-10-15 15:31:11,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:11,262 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-10-15 15:31:11,293 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+cfa-reducer.c[1014,1027] Start Parsing Local [2024-10-15 15:31:11,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:11,312 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:31:11,313 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:11 WrapperNode [2024-10-15 15:31:11,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:11,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:11,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:31:11,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:31:11,320 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,325 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,331 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:31:11,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:11,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:31:11,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:31:11,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:31:11,339 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,339 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,341 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,346 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 15:31:11,346 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,347 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,349 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,350 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,355 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,355 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:31:11,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:31:11,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:31:11,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:31:11,361 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 03:31:11" (1/1) ... [2024-10-15 15:31:11,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:31:11,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:31:11,396 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 15:31:11,408 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 15:31:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:31:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:31:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:31:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-15 15:31:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:31:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:31:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:31:11,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:31:11,510 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:31:11,511 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:31:11,610 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:31:11,648 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:31:11,649 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:31:11,649 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 15:31:11,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:31:11,652 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:31:11,652 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:31:11,652 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:31:11,652 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:31:11" (1/4) ... [2024-10-15 15:31:11,653 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@659e32e8 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 15:31:11,653 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 03:31:11" (2/4) ... [2024-10-15 15:31:11,653 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@659e32e8 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 15:31:11,653 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 03:31:11" (3/4) ... [2024-10-15 15:31:11,654 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@659e32e8 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 15:31:11,654 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 15:31:11,655 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-10-15 15:31:11,659 INFO L113 InvariantChecker]: Found 0 loops. [2024-10-15 15:31:11,659 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-10-15 15:31:11,660 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-10-15 15:31:11,660 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-10-15 15:31:11,660 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-10-15 15:31:11,699 INFO L309 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2024-10-15 15:31:11,700 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:31:11,701 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:31:11,702 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:31:11,703 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:31:11,705 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:11,733 INFO L101 BaseMinimizeStates]: Removed 19 edges and 6 locations by large block encoding [2024-10-15 15:31:11,734 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:11,734 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:31:11,734 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:31:11,735 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:31:11,741 INFO L309 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-10-15 15:31:11,742 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 15:31:11,750 INFO L158 Benchmark]: Toolchain (without parser) took 676.72ms. Allocated memory was 73.4MB in the beginning and 127.9MB in the end (delta: 54.5MB). Free memory was 49.7MB in the beginning and 91.5MB in the end (delta: -41.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:11,751 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 73.4MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:11,751 INFO L158 Benchmark]: Witness Parser took 1.45ms. Allocated memory is still 73.4MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:11,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.33ms. Allocated memory is still 73.4MB. Free memory was 49.6MB in the beginning and 35.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-15 15:31:11,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.92ms. Allocated memory is still 73.4MB. Free memory was 35.4MB in the beginning and 34.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:11,755 INFO L158 Benchmark]: Boogie Preprocessor took 27.40ms. Allocated memory is still 73.4MB. Free memory was 34.3MB in the beginning and 32.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:11,756 INFO L158 Benchmark]: RCFGBuilder took 290.93ms. Allocated memory was 73.4MB in the beginning and 127.9MB in the end (delta: 54.5MB). Free memory was 32.8MB in the beginning and 97.3MB in the end (delta: -64.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-15 15:31:11,756 INFO L158 Benchmark]: Referee took 96.47ms. Allocated memory is still 127.9MB. Free memory was 97.3MB in the beginning and 91.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-15 15:31:11,762 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 0.20ms. Allocated memory is still 73.4MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 1.45ms. Allocated memory is still 73.4MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.33ms. Allocated memory is still 73.4MB. Free memory was 49.6MB in the beginning and 35.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.92ms. Allocated memory is still 73.4MB. Free memory was 35.4MB in the beginning and 34.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.40ms. Allocated memory is still 73.4MB. Free memory was 34.3MB in the beginning and 32.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 290.93ms. Allocated memory was 73.4MB in the beginning and 127.9MB in the end (delta: 54.5MB). Free memory was 32.8MB in the beginning and 97.3MB in the end (delta: -64.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Referee took 96.47ms. Allocated memory is still 127.9MB. Free memory was 97.3MB in the beginning and 91.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-15 15:31:11,791 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 15:31:14,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:31:14,334 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-10-15 15:31:14,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:31:14,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:31:14,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:31:14,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:31:14,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:31:14,390 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:31:14,390 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:31:14,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:31:14,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:31:14,391 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:31:14,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:31:14,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:31:14,392 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:31:14,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:31:14,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:31:14,395 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:31:14,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:31:14,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:31:14,400 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-15 15:31:14,400 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-15 15:31:14,400 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:31:14,400 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-15 15:31:14,401 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:31:14,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:31:14,401 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:31:14,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:31:14,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:31:14,402 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:31:14,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:31:14,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:31:14,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:31:14,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:31:14,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:31:14,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:31:14,976 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:31:14,977 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:31:14,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-10-15 15:31:16,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:31:16,647 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:31:16,649 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-10-15 15:31:16,659 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/5faf3cffa/483b26c0527d4779b0809200a2090881/FLAG82c4cd7b6 [2024-10-15 15:31:16,677 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/5faf3cffa/483b26c0527d4779b0809200a2090881 [2024-10-15 15:31:16,681 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:31:16,682 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:31:16,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-10-15 15:31:16,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:31:16,730 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:31:16,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:16,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:31:16,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:31:16,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:16" (1/2) ... [2024-10-15 15:31:16,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773b60df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:16, skipping insertion in model container [2024-10-15 15:31:16,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:16" (1/2) ... [2024-10-15 15:31:16,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@59795eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:16, skipping insertion in model container [2024-10-15 15:31:16,739 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 03:31:16" (2/2) ... [2024-10-15 15:31:16,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773b60df and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:16, skipping insertion in model container [2024-10-15 15:31:16,740 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 03:31:16" (2/2) ... [2024-10-15 15:31:16,745 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:31:16,749 INFO L1541 ArrayList]: Location invariant before [L34-L58] (((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (\old(__return_80) == __return_80)) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-10-15 15:31:16,751 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-10-15 15:31:16,768 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:31:16,920 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+cfa-reducer.c[1014,1027] [2024-10-15 15:31:16,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:16,936 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-10-15 15:31:16,986 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+cfa-reducer.c[1014,1027] Start Parsing Local [2024-10-15 15:31:16,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:17,014 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:31:17,015 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:17 WrapperNode [2024-10-15 15:31:17,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:17,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:17,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:31:17,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:31:17,023 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,030 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,036 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:31:17,037 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:17,038 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:31:17,038 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:31:17,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:31:17,046 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,047 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,050 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,060 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 15:31:17,062 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,062 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,067 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,069 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,070 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,071 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:31:17,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:31:17,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:31:17,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:31:17,077 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 03:31:17" (1/1) ... [2024-10-15 15:31:17,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:31:17,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:31:17,108 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 15:31:17,119 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 15:31:17,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:31:17,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-15 15:31:17,167 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:31:17,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:31:17,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:31:17,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:31:17,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:31:17,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:31:17,220 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:31:17,221 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:31:19,722 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:31:19,782 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:31:19,790 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:31:19,791 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:19 BoogieIcfgContainer [2024-10-15 15:31:19,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:31:19,791 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:31:19,791 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:31:19,792 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:31:19,792 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:31:16" (1/4) ... [2024-10-15 15:31:19,792 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6a6ef6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:31:19, skipping insertion in model container [2024-10-15 15:31:19,793 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 03:31:16" (2/4) ... [2024-10-15 15:31:19,793 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6a6ef6d1 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:19, skipping insertion in model container [2024-10-15 15:31:19,793 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 03:31:17" (3/4) ... [2024-10-15 15:31:19,793 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6a6ef6d1 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:19, skipping insertion in model container [2024-10-15 15:31:19,793 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 03:31:19" (4/4) ... [2024-10-15 15:31:19,794 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-10-15 15:31:19,804 INFO L113 InvariantChecker]: Found 0 loops. [2024-10-15 15:31:19,812 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-10-15 15:31:19,812 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-10-15 15:31:19,812 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-10-15 15:31:19,813 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-10-15 15:31:19,891 INFO L309 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2024-10-15 15:31:19,892 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:31:19,892 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:31:19,893 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:31:19,899 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:31:19,905 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:19,951 INFO L101 BaseMinimizeStates]: Removed 19 edges and 6 locations by large block encoding [2024-10-15 15:31:19,952 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:19,952 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:31:19,952 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:31:19,953 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:31:19,957 INFO L309 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-10-15 15:31:19,958 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 15:31:19,961 INFO L158 Benchmark]: Toolchain (without parser) took 3230.35ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 40.9MB in the beginning and 40.0MB in the end (delta: 893.5kB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-10-15 15:31:19,962 INFO L158 Benchmark]: CDTParser took 4.19ms. Allocated memory is still 67.1MB. Free memory is still 38.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:19,962 INFO L158 Benchmark]: Witness Parser took 0.75ms. Allocated memory is still 67.1MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:19,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.90ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 40.7MB in the beginning and 63.0MB in the end (delta: -22.3MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-10-15 15:31:19,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.13ms. Allocated memory is still 86.0MB. Free memory was 63.0MB in the beginning and 62.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:19,971 INFO L158 Benchmark]: Boogie Preprocessor took 37.59ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 60.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:19,972 INFO L158 Benchmark]: RCFGBuilder took 2714.87ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 47.0MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-15 15:31:19,972 INFO L158 Benchmark]: Referee took 168.88ms. Allocated memory is still 86.0MB. Free memory was 47.0MB in the beginning and 40.0MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-15 15:31:19,974 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 4.19ms. Allocated memory is still 67.1MB. Free memory is still 38.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.75ms. Allocated memory is still 67.1MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.90ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 40.7MB in the beginning and 63.0MB in the end (delta: -22.3MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.13ms. Allocated memory is still 86.0MB. Free memory was 63.0MB in the beginning and 62.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.59ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 60.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2714.87ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 47.0MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 168.88ms. Allocated memory is still 86.0MB. Free memory was 47.0MB in the beginning and 40.0MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-15 15:31:20,026 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...