This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:31:09,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:31:09,575 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-10-15 15:31:09,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:31:09,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:31:09,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:31:09,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:31:09,610 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:31:09,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:31:09,611 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:31:09,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:31:09,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:31:09,614 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:31:09,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:31:09,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:31:09,615 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:31:09,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 15:31:09,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:31:09,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:31:09,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:31:09,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:31:09,621 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:31:09,622 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:31:09,622 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:31:09,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:31:09,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:31:09,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:31:09,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:31:09,624 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:31:09,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:31:09,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:31:09,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:31:09,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:31:09,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:31:09,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:31:09,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:31:09,975 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:31:09,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-10-15 15:31:11,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:31:11,661 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:31:11,662 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-10-15 15:31:11,669 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/8e75f271c/d17b34043d9f41cf9faf350c409c9290/FLAG443e44fe1 [2024-10-15 15:31:11,679 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/8e75f271c/d17b34043d9f41cf9faf350c409c9290 [2024-10-15 15:31:11,682 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:31:11,682 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:31:11,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-10-15 15:31:11,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:31:11,731 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:31:11,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:11,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:31:11,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:31:11,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:11" (1/2) ... [2024-10-15 15:31:11,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce7e5a5 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 15:31:11,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:11" (1/2) ... [2024-10-15 15:31:11,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22bde976 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 15:31:11,747 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 15:31:11,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce7e5a5 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 15:31:11,748 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 15:31:11,758 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:31:11,759 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((\old(__return_60) == __return_60) && ((((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 15:31:11,762 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-10-15 15:31:11,780 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:31:11,986 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.v+cfa-reducer.c[1014,1027] [2024-10-15 15:31:11,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:12,006 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-10-15 15:31:12,046 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.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-10-15 15:31:12,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:12,072 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:31:12,074 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:12 WrapperNode [2024-10-15 15:31:12,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:12,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:12,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:31:12,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:31:12,082 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,087 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,094 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:31:12,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:12,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:31:12,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:31:12,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:31:12,104 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,104 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,109 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,121 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 15:31:12,125 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,125 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,128 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,132 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,132 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,133 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:31:12,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:31:12,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:31:12,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:31:12,140 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 03:31:12" (1/1) ... [2024-10-15 15:31:12,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:31:12,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:31:12,171 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 15:31:12,173 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 15:31:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:31:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:31:12,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:31:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-15 15:31:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:31:12,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:31:12,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:31:12,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:31:12,286 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:31:12,288 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:31:12,438 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:31:12,481 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:31:12,482 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:31:12,482 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:12 BoogieIcfgContainer [2024-10-15 15:31:12,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:31:12,483 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:31:12,483 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:31:12,485 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:31:12,485 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:31:11" (1/4) ... [2024-10-15 15:31:12,486 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e303f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:31:12, skipping insertion in model container [2024-10-15 15:31:12,487 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 15:31:12,487 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e303f91 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:12, skipping insertion in model container [2024-10-15 15:31:12,487 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 03:31:12" (3/4) ... [2024-10-15 15:31:12,487 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e303f91 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:12, skipping insertion in model container [2024-10-15 15:31:12,488 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 03:31:12" (4/4) ... [2024-10-15 15:31:12,490 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-10-15 15:31:12,493 INFO L113 InvariantChecker]: Found 0 loops. [2024-10-15 15:31:12,493 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-10-15 15:31:12,494 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-10-15 15:31:12,494 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-10-15 15:31:12,495 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-10-15 15:31:12,542 INFO L309 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2024-10-15 15:31:12,544 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:31:12,544 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:31:12,545 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:31:12,546 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:31:12,548 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:12,582 INFO L101 BaseMinimizeStates]: Removed 19 edges and 6 locations by large block encoding [2024-10-15 15:31:12,585 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:12,585 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:31:12,585 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:31:12,586 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:31:12,590 INFO L309 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-10-15 15:31:12,591 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 15:31:12,596 INFO L158 Benchmark]: Toolchain (without parser) took 864.46ms. Allocated memory is still 69.2MB. Free memory was 27.1MB in the beginning and 41.4MB in the end (delta: -14.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:12,597 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.3MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:12,598 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 69.2MB. Free memory is still 28.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:12,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.88ms. Allocated memory is still 69.2MB. Free memory was 26.8MB in the beginning and 38.1MB in the end (delta: -11.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2024-10-15 15:31:12,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.81ms. Allocated memory is still 69.2MB. Free memory was 38.1MB in the beginning and 37.2MB in the end (delta: 851.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:12,602 INFO L158 Benchmark]: Boogie Preprocessor took 43.08ms. Allocated memory is still 69.2MB. Free memory was 37.2MB in the beginning and 35.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:12,603 INFO L158 Benchmark]: RCFGBuilder took 343.83ms. Allocated memory is still 69.2MB. Free memory was 35.7MB in the beginning and 47.5MB in the end (delta: -11.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-15 15:31:12,603 INFO L158 Benchmark]: Referee took 111.88ms. Allocated memory is still 69.2MB. Free memory was 47.5MB in the beginning and 41.4MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-15 15:31:12,608 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 0.22ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.3MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.11ms. Allocated memory is still 69.2MB. Free memory is still 28.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.88ms. Allocated memory is still 69.2MB. Free memory was 26.8MB in the beginning and 38.1MB in the end (delta: -11.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.81ms. Allocated memory is still 69.2MB. Free memory was 38.1MB in the beginning and 37.2MB in the end (delta: 851.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.08ms. Allocated memory is still 69.2MB. Free memory was 37.2MB in the beginning and 35.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 343.83ms. Allocated memory is still 69.2MB. Free memory was 35.7MB in the beginning and 47.5MB in the end (delta: -11.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 111.88ms. Allocated memory is still 69.2MB. Free memory was 47.5MB in the beginning and 41.4MB in the end (delta: 6.1MB). 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 15:31:12,639 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... ### Bit-precise run ### This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:31:14,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:31:14,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-10-15 15:31:14,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:31:14,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:31:14,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:31:14,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:31:14,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:31:14,882 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:31:14,883 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:31:14,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:31:14,884 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:31:14,884 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:31:14,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:31:14,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:31:14,887 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:31:14,888 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:31:14,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:31:14,888 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:31:14,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:31:14,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:31:14,893 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-15 15:31:14,894 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-15 15:31:14,894 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:31:14,894 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-15 15:31:14,894 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:31:14,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:31:14,895 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:31:14,895 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:31:14,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:31:14,896 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:31:14,896 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:31:14,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:31:14,897 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:31:15,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:31:15,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:31:15,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:31:15,235 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:31:15,236 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:31:15,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-10-15 15:31:16,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:31:17,049 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:31:17,049 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-10-15 15:31:17,056 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/1af7de4b1/7433515ecb784779898956d1d6b9ac01/FLAG941344738 [2024-10-15 15:31:17,069 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/1af7de4b1/7433515ecb784779898956d1d6b9ac01 [2024-10-15 15:31:17,071 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:31:17,071 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:31:17,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-10-15 15:31:17,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:31:17,123 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:31:17,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:17,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:31:17,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:31:17,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:17" (1/2) ... [2024-10-15 15:31:17,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5812feed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:17, skipping insertion in model container [2024-10-15 15:31:17,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:17" (1/2) ... [2024-10-15 15:31:17,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f1a383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:17, skipping insertion in model container [2024-10-15 15:31:17,134 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 03:31:17" (2/2) ... [2024-10-15 15:31:17,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5812feed and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:17, skipping insertion in model container [2024-10-15 15:31:17,134 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 03:31:17" (2/2) ... [2024-10-15 15:31:17,144 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:31:17,145 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((\old(__return_60) == __return_60) && ((((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 15:31:17,145 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-10-15 15:31:17,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:31:17,372 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.v+cfa-reducer.c[1014,1027] [2024-10-15 15:31:17,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:17,392 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-10-15 15:31:17,436 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.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-10-15 15:31:17,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:17,465 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:31:17,466 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 15:31:17,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:17,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:17,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:31:17,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:31:17,475 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 15:31:17,482 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 15:31:17,489 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:31:17,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:17,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:31:17,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:31:17,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:31:17,500 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 15:31:17,500 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 15:31:17,502 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 15:31:17,516 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 15:31:17,519 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 15:31:17,520 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 15:31:17,529 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 15:31:17,531 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 15:31:17,532 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 15:31:17,534 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 15:31:17,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:31:17,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:31:17,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:31:17,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:31:17,539 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 15:31:17,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:31:17,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:31:17,571 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 15:31:17,579 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 15:31:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:31:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-15 15:31:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:31:17,626 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:31:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:31:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:31:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:31:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:31:17,698 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:31:17,702 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:31:20,865 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:31:20,917 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:31:20,918 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:31:20,918 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:20 BoogieIcfgContainer [2024-10-15 15:31:20,918 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:31:20,919 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:31:20,919 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:31:20,920 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:31:20,921 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:31:17" (1/4) ... [2024-10-15 15:31:20,922 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ed8824c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:31:20, skipping insertion in model container [2024-10-15 15:31:20,924 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 03:31:17" (2/4) ... [2024-10-15 15:31:20,925 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ed8824c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:20, skipping insertion in model container [2024-10-15 15:31:20,925 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 15:31:20,925 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ed8824c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:20, skipping insertion in model container [2024-10-15 15:31:20,925 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 03:31:20" (4/4) ... [2024-10-15 15:31:20,927 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-10-15 15:31:20,931 INFO L113 InvariantChecker]: Found 0 loops. [2024-10-15 15:31:20,933 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-10-15 15:31:20,933 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-10-15 15:31:20,934 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-10-15 15:31:20,934 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-10-15 15:31:20,992 INFO L309 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2024-10-15 15:31:20,993 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:31:21,002 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:31:21,003 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:31:21,004 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:31:21,007 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:21,041 INFO L101 BaseMinimizeStates]: Removed 19 edges and 6 locations by large block encoding [2024-10-15 15:31:21,042 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:21,042 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:31:21,043 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:31:21,043 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:31:21,048 INFO L309 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-10-15 15:31:21,050 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 15:31:21,055 INFO L158 Benchmark]: Toolchain (without parser) took 3930.07ms. Allocated memory is still 79.7MB. Free memory was 42.6MB in the beginning and 53.5MB in the end (delta: -10.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-10-15 15:31:21,055 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 54.5MB. Free memory was 34.2MB in the beginning and 34.1MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:21,056 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 79.7MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:21,056 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.26ms. Allocated memory is still 79.7MB. Free memory was 42.4MB in the beginning and 47.5MB in the end (delta: -5.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-10-15 15:31:21,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.08ms. Allocated memory is still 79.7MB. Free memory was 47.5MB in the beginning and 46.6MB in the end (delta: 937.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:21,057 INFO L158 Benchmark]: Boogie Preprocessor took 46.06ms. Allocated memory is still 79.7MB. Free memory was 46.2MB in the beginning and 44.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:21,057 INFO L158 Benchmark]: RCFGBuilder took 3381.04ms. Allocated memory is still 79.7MB. Free memory was 44.5MB in the beginning and 31.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-15 15:31:21,058 INFO L158 Benchmark]: Referee took 133.14ms. Allocated memory is still 79.7MB. Free memory was 31.5MB in the beginning and 53.5MB in the end (delta: -22.0MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-10-15 15:31:21,061 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 0.71ms. Allocated memory is still 54.5MB. Free memory was 34.2MB in the beginning and 34.1MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 79.7MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.26ms. Allocated memory is still 79.7MB. Free memory was 42.4MB in the beginning and 47.5MB in the end (delta: -5.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.08ms. Allocated memory is still 79.7MB. Free memory was 47.5MB in the beginning and 46.6MB in the end (delta: 937.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.06ms. Allocated memory is still 79.7MB. Free memory was 46.2MB in the beginning and 44.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 3381.04ms. Allocated memory is still 79.7MB. Free memory was 44.5MB in the beginning and 31.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 133.14ms. Allocated memory is still 79.7MB. Free memory was 31.5MB in the beginning and 53.5MB in the end (delta: -22.0MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-15 15:31:21,107 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...