This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:46:18,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:46:18,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:46:18,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:46:18,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:46:18,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:46:18,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:46:18,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:46:18,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:46:18,375 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:46:18,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:46:18,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:46:18,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:46:18,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:46:18,376 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:46:18,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:46:18,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:46:18,377 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:46:18,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:46:18,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:46:18,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:46:18,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:46:18,379 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:46:18,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:46:18,379 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:46:18,379 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:46:18,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:46:18,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:46:18,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:46:18,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:46:18,381 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:46:18,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:46:18,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:46:18,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:18,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:46:18,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:46:18,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:46:18,383 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:46:18,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:46:18,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:46:18,384 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:46:18,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:46:18,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:46:18,386 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:46:18,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:46:18,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:46:18,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:46:18,610 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:46:18,613 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:46:18,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/witness-2.1.yml [2024-09-25 11:46:18,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:46:18,689 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:46:18,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-25 11:46:19,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:46:20,145 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:46:20,146 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-25 11:46:20,154 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/2d6eec226/2128d547d86f4f70a5f653935ca7f32e/FLAGe63b9fc6f [2024-09-25 11:46:20,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/2d6eec226/2128d547d86f4f70a5f653935ca7f32e [2024-09-25 11:46:20,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:46:20,169 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:46:20,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:20,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:46:20,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:46:20,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:18" (1/2) ... [2024-09-25 11:46:20,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756c3ff and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:20, skipping insertion in model container [2024-09-25 11:46:20,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:18" (1/2) ... [2024-09-25 11:46:20,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4d37134c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:20, skipping insertion in model container [2024-09-25 11:46:20,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:20" (2/2) ... [2024-09-25 11:46:20,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756c3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20, skipping insertion in model container [2024-09-25 11:46:20,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:20" (2/2) ... [2024-09-25 11:46:20,187 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:46:20,187 INFO L1541 ArrayList]: Location invariant before [L24-L141] ((main__x % 3) < 1) [2024-09-25 11:46:20,187 INFO L1541 ArrayList]: Location invariant before [L42-L42] ((main__x % 3) < 1) [2024-09-25 11:46:20,188 INFO L1541 ArrayList]: Location invariant before [L36-L112] ((main__x % 3) < 1) [2024-09-25 11:46:20,188 INFO L1541 ArrayList]: Function contract at [L15]: requires null, ensures (__return_main == \old(__return_main)) [2024-09-25 11:46:20,203 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:46:20,323 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-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] [2024-09-25 11:46:20,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:20,340 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Local [2024-09-25 11:46:20,377 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-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] Start Parsing Local Start Parsing Local [2024-09-25 11:46:20,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:20,399 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:46:20,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20 WrapperNode [2024-09-25 11:46:20,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:20,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:46:20,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:46:20,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:46:20,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (1/1) ... [2024-09-25 11:46:20,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (1/1) ... [2024-09-25 11:46:20,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (1/1) ... [2024-09-25 11:46:20,431 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 [2024-09-25 11:46:20,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (1/1) ... [2024-09-25 11:46:20,432 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (1/1) ... [2024-09-25 11:46:20,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (1/1) ... [2024-09-25 11:46:20,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (1/1) ... [2024-09-25 11:46:20,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (1/1) ... [2024-09-25 11:46:20,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (1/1) ... [2024-09-25 11:46:20,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:46:20,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:46:20,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:46:20,440 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:46:20,441 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (1/1) ... [2024-09-25 11:46:20,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:20,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:46:20,469 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) [2024-09-25 11:46:20,470 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 [2024-09-25 11:46:20,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:46:20,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:46:20,504 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:46:20,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:46:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:46:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:46:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:46:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:46:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:46:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:46:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:46:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:46:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:46:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:46:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:46:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:46:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:46:20,571 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:46:20,573 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:46:20,720 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:46:20,758 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:46:20,762 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:46:20,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:20 BoogieIcfgContainer [2024-09-25 11:46:20,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:46:20,764 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:46:20,764 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:46:20,765 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:46:20,765 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:18" (1/4) ... [2024-09-25 11:46:20,765 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@54cfa059 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:20, skipping insertion in model container [2024-09-25 11:46:20,766 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:20" (2/4) ... [2024-09-25 11:46:20,766 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@54cfa059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:20, skipping insertion in model container [2024-09-25 11:46:20,767 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:20" (3/4) ... [2024-09-25 11:46:20,767 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@54cfa059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:20, skipping insertion in model container [2024-09-25 11:46:20,767 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:20" (4/4) ... [2024-09-25 11:46:20,768 INFO L79 RefereeObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2024-09-25 11:46:20,771 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:46:20,771 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-25 11:46:20,772 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 33 edges. [2024-09-25 11:46:20,772 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 29 edges. [2024-09-25 11:46:20,772 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-25 11:46:20,772 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-25 11:46:20,772 INFO L131 InvariantChecker]: Will check 5 loop-free subgraphs from procedure entry to error location [2024-09-25 11:46:20,816 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 26 edges [2024-09-25 11:46:20,817 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:20,817 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:20,818 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:20,819 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:20,820 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:20,917 INFO L101 BaseMinimizeStates]: Removed 62 edges and 16 locations by large block encoding [2024-09-25 11:46:20,918 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:20,918 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:20,919 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:20,919 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:20,942 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2024-09-25 11:46:20,958 INFO L314 BlockEncoder]: Initial Icfg 24 locations, 33 edges [2024-09-25 11:46:20,958 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:20,959 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:20,959 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:20,959 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:20,959 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:21,047 INFO L101 BaseMinimizeStates]: Removed 93 edges and 20 locations by large block encoding [2024-09-25 11:46:21,048 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:21,048 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:21,049 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:21,049 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:21,061 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2024-09-25 11:46:21,062 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:169) 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) [2024-09-25 11:46:21,067 INFO L158 Benchmark]: Toolchain (without parser) took 896.85ms. Allocated memory is still 197.1MB. Free memory was 164.3MB in the beginning and 140.9MB in the end (delta: 23.3MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-09-25 11:46:21,068 INFO L158 Benchmark]: Witness Parser took 2.86ms. Allocated memory is still 127.9MB. Free memory was 89.8MB in the beginning and 89.7MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:21,068 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:21,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.86ms. Allocated memory is still 197.1MB. Free memory was 164.3MB in the beginning and 149.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:21,069 INFO L158 Benchmark]: Boogie Preprocessor took 38.93ms. Allocated memory is still 197.1MB. Free memory was 149.0MB in the beginning and 146.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:46:21,070 INFO L158 Benchmark]: RCFGBuilder took 323.79ms. Allocated memory is still 197.1MB. Free memory was 146.8MB in the beginning and 132.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:21,070 INFO L158 Benchmark]: Referee took 300.94ms. Allocated memory is still 197.1MB. Free memory was 132.2MB in the beginning and 140.9MB in the end (delta: -8.7MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2024-09-25 11:46:21,072 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:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 2.86ms. Allocated memory is still 127.9MB. Free memory was 89.8MB in the beginning and 89.7MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.86ms. Allocated memory is still 197.1MB. Free memory was 164.3MB in the beginning and 149.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.93ms. Allocated memory is still 197.1MB. Free memory was 149.0MB in the beginning and 146.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 323.79ms. Allocated memory is still 197.1MB. Free memory was 146.8MB in the beginning and 132.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 300.94ms. Allocated memory is still 197.1MB. Free memory was 132.2MB in the beginning and 140.9MB in the end (delta: -8.7MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 11:46:21,103 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 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:46:22,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:46:22,985 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 11:46:22,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:46:22,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:46:23,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:46:23,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:46:23,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:46:23,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:46:23,017 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:46:23,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:46:23,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:46:23,020 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:46:23,020 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:46:23,021 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:46:23,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:46:23,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:46:23,021 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:46:23,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:46:23,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:46:23,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:46:23,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:46:23,023 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:46:23,023 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 11:46:23,024 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 11:46:23,024 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:46:23,024 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 11:46:23,024 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:46:23,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:46:23,025 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:46:23,025 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:46:23,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:46:23,025 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:46:23,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:46:23,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:46:23,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:23,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:46:23,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:46:23,027 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:46:23,027 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 11:46:23,027 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 11:46:23,027 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:46:23,028 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:46:23,028 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:46:23,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:46:23,028 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 11:46:23,028 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:46:23,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:46:23,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:46:23,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:46:23,336 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:46:23,336 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:46:23,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-25 11:46:24,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:46:24,865 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:46:24,868 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-25 11:46:24,877 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/bde5f98bc/98c7cd925afd4a248ef61548e4c3edf8/FLAGf48882404 [2024-09-25 11:46:24,893 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/bde5f98bc/98c7cd925afd4a248ef61548e4c3edf8 [2024-09-25 11:46:24,896 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:46:24,896 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:46:24,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/witness-2.1.yml [2024-09-25 11:46:24,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:46:24,948 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:46:24,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:24,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:46:24,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:46:24,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:24" (1/2) ... [2024-09-25 11:46:24,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59581170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:24, skipping insertion in model container [2024-09-25 11:46:24,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:24" (1/2) ... [2024-09-25 11:46:24,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f2ce0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:24, skipping insertion in model container [2024-09-25 11:46:24,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:24" (2/2) ... [2024-09-25 11:46:24,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59581170 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:24, skipping insertion in model container [2024-09-25 11:46:24,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:24" (2/2) ... [2024-09-25 11:46:24,973 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:46:24,974 INFO L1541 ArrayList]: Location invariant before [L36-L112] ((main__x % 3) < 1) [2024-09-25 11:46:24,974 INFO L1541 ArrayList]: Location invariant before [L24-L141] ((main__x % 3) < 1) [2024-09-25 11:46:24,974 INFO L1541 ArrayList]: Location invariant before [L42-L42] ((main__x % 3) < 1) [2024-09-25 11:46:24,974 INFO L1541 ArrayList]: Function contract at [L15]: requires null, ensures (__return_main == \old(__return_main)) [2024-09-25 11:46:24,995 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:46:25,141 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-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] [2024-09-25 11:46:25,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:25,168 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Local [2024-09-25 11:46:25,227 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-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] Start Parsing Local Start Parsing Local [2024-09-25 11:46:25,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:25,255 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:46:25,256 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:25 WrapperNode [2024-09-25 11:46:25,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:25,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:46:25,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:46:25,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:46:25,269 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 25.09 11:46:25" (1/1) ... [2024-09-25 11:46:25,269 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 25.09 11:46:25" (1/1) ... [2024-09-25 11:46:25,276 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 25.09 11:46:25" (1/1) ... [2024-09-25 11:46:25,284 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 [2024-09-25 11:46:25,284 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 25.09 11:46:25" (1/1) ... [2024-09-25 11:46:25,284 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 25.09 11:46:25" (1/1) ... [2024-09-25 11:46:25,290 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 25.09 11:46:25" (1/1) ... [2024-09-25 11:46:25,294 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 25.09 11:46:25" (1/1) ... [2024-09-25 11:46:25,296 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 25.09 11:46:25" (1/1) ... [2024-09-25 11:46:25,298 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 25.09 11:46:25" (1/1) ... [2024-09-25 11:46:25,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:46:25,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:46:25,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:46:25,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:46:25,303 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 25.09 11:46:25" (1/1) ... [2024-09-25 11:46:25,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:25,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:46:25,328 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) [2024-09-25 11:46:25,338 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 [2024-09-25 11:46:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:46:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:46:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:46:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-25 11:46:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:46:25,449 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:46:25,451 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:46:25,698 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:46:25,732 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:46:25,735 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:46:25,735 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:25 BoogieIcfgContainer [2024-09-25 11:46:25,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:46:25,736 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:46:25,736 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:46:25,737 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:46:25,737 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:24" (1/4) ... [2024-09-25 11:46:25,737 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@50f29844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:25, skipping insertion in model container [2024-09-25 11:46:25,737 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:24" (2/4) ... [2024-09-25 11:46:25,737 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@50f29844 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:25, skipping insertion in model container [2024-09-25 11:46:25,738 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 25.09 11:46:25" (3/4) ... [2024-09-25 11:46:25,738 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@50f29844 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:25, skipping insertion in model container [2024-09-25 11:46:25,738 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:25" (4/4) ... [2024-09-25 11:46:25,740 INFO L79 RefereeObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2024-09-25 11:46:25,742 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:46:25,743 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-25 11:46:25,744 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 33 edges. [2024-09-25 11:46:25,744 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 29 edges. [2024-09-25 11:46:25,744 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-25 11:46:25,745 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-25 11:46:25,745 INFO L131 InvariantChecker]: Will check 5 loop-free subgraphs from procedure entry to error location [2024-09-25 11:46:25,795 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 26 edges [2024-09-25 11:46:25,795 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:25,796 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:25,796 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:25,797 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:25,799 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:25,871 INFO L101 BaseMinimizeStates]: Removed 62 edges and 16 locations by large block encoding [2024-09-25 11:46:25,873 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:25,873 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:25,873 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:25,877 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:25,895 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2024-09-25 11:46:25,912 INFO L314 BlockEncoder]: Initial Icfg 24 locations, 33 edges [2024-09-25 11:46:25,914 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:25,914 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:25,914 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:25,914 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:25,915 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:25,995 INFO L101 BaseMinimizeStates]: Removed 93 edges and 20 locations by large block encoding [2024-09-25 11:46:25,997 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:25,998 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:25,998 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:25,998 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:26,010 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2024-09-25 11:46:26,012 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:169) 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) [2024-09-25 11:46:26,017 INFO L158 Benchmark]: Toolchain (without parser) took 1067.17ms. Allocated memory is still 88.1MB. Free memory was 58.6MB in the beginning and 51.3MB in the end (delta: 7.3MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2024-09-25 11:46:26,018 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 62.9MB. Free memory was 43.7MB in the beginning and 43.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:26,018 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 88.1MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:26,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.01ms. Allocated memory is still 88.1MB. Free memory was 58.3MB in the beginning and 65.1MB in the end (delta: -6.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:26,019 INFO L158 Benchmark]: Boogie Preprocessor took 42.52ms. Allocated memory is still 88.1MB. Free memory was 65.1MB in the beginning and 62.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:46:26,020 INFO L158 Benchmark]: RCFGBuilder took 433.52ms. Allocated memory is still 88.1MB. Free memory was 62.6MB in the beginning and 47.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:26,021 INFO L158 Benchmark]: Referee took 278.82ms. Allocated memory is still 88.1MB. Free memory was 47.1MB in the beginning and 51.3MB in the end (delta: -4.2MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-09-25 11:46:26,023 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:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 62.9MB. Free memory was 43.7MB in the beginning and 43.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 88.1MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.01ms. Allocated memory is still 88.1MB. Free memory was 58.3MB in the beginning and 65.1MB in the end (delta: -6.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.52ms. Allocated memory is still 88.1MB. Free memory was 65.1MB in the beginning and 62.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.52ms. Allocated memory is still 88.1MB. Free memory was 62.6MB in the beginning and 47.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 278.82ms. Allocated memory is still 88.1MB. Free memory was 47.1MB in the beginning and 51.3MB in the end (delta: -4.2MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 11:46:26,049 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...