This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:30:57,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:30:57,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-10-15 15:30:57,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:30:57,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:30:57,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:30:57,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:30:57,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:30:57,884 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:30:57,885 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:30:57,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:30:57,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:30:57,887 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:30:57,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:30:57,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:30:57,888 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:30:57,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 15:30:57,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:30:57,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:30:57,890 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:30:57,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:30:57,893 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:30:57,893 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:30:57,893 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:30:57,894 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:30:57,894 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:30:57,894 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:30:57,895 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:30:57,895 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:30:57,895 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:30:57,895 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:30:57,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:30:58,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:30:58,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:30:58,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:30:58,268 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:30:58,269 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:30:58,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-10-15 15:30:59,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:31:00,038 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:31:00,039 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-10-15 15:31:00,052 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/31daa6693/bf839ca60aef4a378cc1967cc78312b2/FLAGd15454963 [2024-10-15 15:31:00,072 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/31daa6693/bf839ca60aef4a378cc1967cc78312b2 [2024-10-15 15:31:00,075 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:31:00,076 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:31:00,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-10-15 15:31:00,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:31:00,132 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:31:00,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:00,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:31:00,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:31:00,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:00" (1/2) ... [2024-10-15 15:31:00,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f90a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:00, skipping insertion in model container [2024-10-15 15:31:00,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:00" (1/2) ... [2024-10-15 15:31:00,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28ebac41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:00, skipping insertion in model container [2024-10-15 15:31:00,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:31:00" (2/2) ... [2024-10-15 15:31:00,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f90a01 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00, skipping insertion in model container [2024-10-15 15:31:00,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:31:00" (2/2) ... [2024-10-15 15:31:00,154 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:31:00,155 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-10-15 15:31:00,156 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-10-15 15:31:00,177 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:31:00,378 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-10-15 15:31:00,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:00,394 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-10-15 15:31:00,435 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-10-15 15:31:00,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:00,457 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:31:00,457 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00 WrapperNode [2024-10-15 15:31:00,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:00,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:00,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:31:00,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:31:00,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,481 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:31:00,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:00,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:31:00,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:31:00,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:31:00,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,495 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,503 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-10-15 15:31:00,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,510 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:31:00,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:31:00,515 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:31:00,515 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:31:00,516 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (1/1) ... [2024-10-15 15:31:00,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:31:00,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:31:00,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-15 15:31:00,554 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 15:31:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:31:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:31:00,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:31:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-15 15:31:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:31:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:31:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:31:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:31:00,665 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:31:00,667 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:31:00,799 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:31:00,837 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:31:00,837 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:31:00,838 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:00 BoogieIcfgContainer [2024-10-15 15:31:00,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:31:00,839 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:31:00,839 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:31:00,840 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:31:00,841 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:31:00" (1/4) ... [2024-10-15 15:31:00,841 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@40294a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:31:00, skipping insertion in model container [2024-10-15 15:31:00,841 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:31:00" (2/4) ... [2024-10-15 15:31:00,842 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@40294a2d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:00, skipping insertion in model container [2024-10-15 15:31:00,842 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:00" (3/4) ... [2024-10-15 15:31:00,843 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@40294a2d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:00, skipping insertion in model container [2024-10-15 15:31:00,843 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 03:31:00" (4/4) ... [2024-10-15 15:31:00,844 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-10-15 15:31:00,848 INFO L113 InvariantChecker]: Found 0 loops. [2024-10-15 15:31:00,848 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-10-15 15:31:00,849 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-10-15 15:31:00,850 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-10-15 15:31:00,850 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-10-15 15:31:00,909 INFO L309 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2024-10-15 15:31:00,910 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:31:00,910 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:31:00,911 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:31:00,912 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:31:00,913 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:00,936 INFO L101 BaseMinimizeStates]: Removed 20 edges and 6 locations by large block encoding [2024-10-15 15:31:00,938 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:00,938 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:31:00,938 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:31:00,939 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:31:00,942 INFO L309 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-10-15 15:31:00,943 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 15:31:00,947 INFO L158 Benchmark]: Toolchain (without parser) took 813.78ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 27.2MB in the beginning and 48.3MB in the end (delta: -21.1MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-10-15 15:31:00,948 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 56.6MB. Free memory is still 26.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:00,948 INFO L158 Benchmark]: Witness Parser took 0.73ms. Allocated memory is still 56.6MB. Free memory is still 29.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:00,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.74ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 27.1MB in the beginning and 45.4MB in the end (delta: -18.4MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2024-10-15 15:31:00,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.99ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 44.6MB in the end (delta: 799.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:00,950 INFO L158 Benchmark]: Boogie Preprocessor took 30.74ms. Allocated memory is still 73.4MB. Free memory was 44.4MB in the beginning and 43.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:00,951 INFO L158 Benchmark]: RCFGBuilder took 323.21ms. Allocated memory is still 73.4MB. Free memory was 42.8MB in the beginning and 32.6MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-15 15:31:00,951 INFO L158 Benchmark]: Referee took 106.29ms. Allocated memory is still 73.4MB. Free memory was 32.6MB in the beginning and 48.3MB in the end (delta: -15.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-15 15:31:00,956 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 0.26ms. Allocated memory is still 56.6MB. Free memory is still 26.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.73ms. Allocated memory is still 56.6MB. Free memory is still 29.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.74ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 27.1MB in the beginning and 45.4MB in the end (delta: -18.4MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.99ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 44.6MB in the end (delta: 799.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.74ms. Allocated memory is still 73.4MB. Free memory was 44.4MB in the beginning and 43.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 323.21ms. Allocated memory is still 73.4MB. Free memory was 42.8MB in the beginning and 32.6MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 106.29ms. Allocated memory is still 73.4MB. Free memory was 32.6MB in the beginning and 48.3MB in the end (delta: -15.7MB). 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 15:31:00,991 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:31:03,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:31:03,203 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-10-15 15:31:03,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:31:03,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:31:03,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:31:03,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:31:03,240 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:31:03,241 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:31:03,242 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:31:03,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:31:03,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:31:03,243 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:31:03,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:31:03,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:31:03,244 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:31:03,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:31:03,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:31:03,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:31:03,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:31:03,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:31:03,247 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-15 15:31:03,247 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-15 15:31:03,251 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:31:03,251 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-15 15:31:03,251 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:31:03,252 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:31:03,252 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:31:03,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:31:03,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:31:03,253 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:31:03,253 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:31:03,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:31:03,253 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:31:03,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:31:03,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:31:03,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:31:03,578 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:31:03,578 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:31:03,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-10-15 15:31:05,030 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:31:05,204 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:31:05,205 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-10-15 15:31:05,216 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/35d18712e/9c967f8de2904fff9a8ace436d2192b0/FLAG20847bdcf [2024-10-15 15:31:05,241 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/35d18712e/9c967f8de2904fff9a8ace436d2192b0 [2024-10-15 15:31:05,244 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:31:05,244 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:31:05,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-10-15 15:31:05,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:31:05,302 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:31:05,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:05,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:31:05,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:31:05,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:05" (1/2) ... [2024-10-15 15:31:05,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bfe4629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:05, skipping insertion in model container [2024-10-15 15:31:05,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:05" (1/2) ... [2024-10-15 15:31:05,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@df45db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:05, skipping insertion in model container [2024-10-15 15:31:05,317 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 03:31:05" (2/2) ... [2024-10-15 15:31:05,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bfe4629 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:05, skipping insertion in model container [2024-10-15 15:31:05,317 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 03:31:05" (2/2) ... [2024-10-15 15:31:05,326 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:31:05,327 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-10-15 15:31:05,327 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-10-15 15:31:05,347 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:31:05,557 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-10-15 15:31:05,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:05,580 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-10-15 15:31:05,624 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-10-15 15:31:05,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:31:05,648 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:31:05,649 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:31:05 WrapperNode [2024-10-15 15:31:05,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:31:05,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:05,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:31:05,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:31:05,658 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,667 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,673 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:31:05,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:31:05,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:31:05,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:31:05,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:31:05,686 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,686 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,689 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,698 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 15:31:05,699 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,700 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,710 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,712 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,717 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,718 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:31:05,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:31:05,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:31:05,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:31:05,726 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 03:31:05" (1/1) ... [2024-10-15 15:31:05,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:31:05,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:31:05,759 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 15:31:05,766 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 15:31:05,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:31:05,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-15 15:31:05,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:31:05,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:31:05,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:31:05,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:31:05,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:31:05,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:31:05,863 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:31:05,865 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:31:06,014 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:31:06,063 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:31:06,063 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:31:06,064 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:06 BoogieIcfgContainer [2024-10-15 15:31:06,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:31:06,066 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:31:06,066 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:31:06,067 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:31:06,067 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:31:05" (1/4) ... [2024-10-15 15:31:06,068 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5f425919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:31:06, skipping insertion in model container [2024-10-15 15:31:06,068 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 03:31:05" (2/4) ... [2024-10-15 15:31:06,068 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5f425919 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:06, skipping insertion in model container [2024-10-15 15:31:06,069 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 03:31:05" (3/4) ... [2024-10-15 15:31:06,069 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5f425919 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:31:06, skipping insertion in model container [2024-10-15 15:31:06,069 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 03:31:06" (4/4) ... [2024-10-15 15:31:06,070 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-10-15 15:31:06,073 INFO L113 InvariantChecker]: Found 0 loops. [2024-10-15 15:31:06,074 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-10-15 15:31:06,075 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-10-15 15:31:06,076 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-10-15 15:31:06,076 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-10-15 15:31:06,130 INFO L309 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2024-10-15 15:31:06,131 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:31:06,131 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:31:06,132 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:31:06,135 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:31:06,138 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:06,172 INFO L101 BaseMinimizeStates]: Removed 20 edges and 6 locations by large block encoding [2024-10-15 15:31:06,175 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:31:06,175 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:31:06,175 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:31:06,176 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:31:06,179 INFO L309 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-10-15 15:31:06,179 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:168) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-10-15 15:31:06,185 INFO L158 Benchmark]: Toolchain (without parser) took 882.83ms. Allocated memory is still 69.2MB. Free memory was 38.4MB in the beginning and 42.7MB in the end (delta: -4.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,185 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 44.0MB. Free memory was 22.1MB in the beginning and 22.1MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:06,186 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 69.2MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:31:06,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.36ms. Allocated memory is still 69.2MB. Free memory was 38.2MB in the beginning and 43.3MB in the end (delta: -5.2MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.09ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 42.4MB in the end (delta: 906.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,190 INFO L158 Benchmark]: Boogie Preprocessor took 45.72ms. Allocated memory is still 69.2MB. Free memory was 42.4MB in the beginning and 40.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,191 INFO L158 Benchmark]: RCFGBuilder took 341.95ms. Allocated memory is still 69.2MB. Free memory was 40.6MB in the beginning and 29.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,192 INFO L158 Benchmark]: Referee took 117.77ms. Allocated memory is still 69.2MB. Free memory was 29.3MB in the beginning and 42.7MB in the end (delta: -13.4MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2024-10-15 15:31:06,197 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 0.11ms. Allocated memory is still 44.0MB. Free memory was 22.1MB in the beginning and 22.1MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.09ms. Allocated memory is still 69.2MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.36ms. Allocated memory is still 69.2MB. Free memory was 38.2MB in the beginning and 43.3MB in the end (delta: -5.2MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.09ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 42.4MB in the end (delta: 906.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.72ms. Allocated memory is still 69.2MB. Free memory was 42.4MB in the beginning and 40.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 341.95ms. Allocated memory is still 69.2MB. Free memory was 40.6MB in the beginning and 29.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 117.77ms. Allocated memory is still 69.2MB. Free memory was 29.3MB in the beginning and 42.7MB in the end (delta: -13.4MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-15 15:31:06,230 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...