./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c --full-output --witness-type correctness_witness --validate ../results/cpachecker-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/output/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c ../results/cpachecker-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/output/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:07:28,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:28,556 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:07:28,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:28,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:28,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:28,585 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:28,585 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:28,585 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:28,586 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:28,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:28,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:28,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:28,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:28,591 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:28,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:28,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:28,592 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:28,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:07:28,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:28,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:28,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:28,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:28,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:28,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:28,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:28,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:28,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:28,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:28,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:28,598 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:28,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:28,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:28,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:28,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:28,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:28,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:28,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:07:28,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:07:28,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:28,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:28,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:28,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:28,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:28,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:28,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:28,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:28,845 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:28,845 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:28,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/output/witness-2.1.yml [2024-09-21 19:07:28,933 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:28,933 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:28,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-21 19:07:30,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:30,677 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:30,677 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-21 19:07:30,684 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/e5a88852d/68ac694c2b44417db299d17ee1f1170f/FLAGaa545f32b [2024-09-21 19:07:31,087 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/e5a88852d/68ac694c2b44417db299d17ee1f1170f [2024-09-21 19:07:31,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:31,088 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:31,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:31,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:31,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:31,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:28" (1/2) ... [2024-09-21 19:07:31,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b5e6e6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:31, skipping insertion in model container [2024-09-21 19:07:31,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:28" (1/2) ... [2024-09-21 19:07:31,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40e0bbe7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:31, skipping insertion in model container [2024-09-21 19:07:31,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:31" (2/2) ... [2024-09-21 19:07:31,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b5e6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31, skipping insertion in model container [2024-09-21 19:07:31,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:31" (2/2) ... [2024-09-21 19:07:31,103 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:31,103 INFO L1541 ArrayList]: Function contract at [L15]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:31,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:31,255 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] [2024-09-21 19:07:31,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:31,281 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-21 19:07:31,328 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] [2024-09-21 19:07:31,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:31,348 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:31,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31 WrapperNode [2024-09-21 19:07:31,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:31,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:31,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:31,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:31,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (1/1) ... [2024-09-21 19:07:31,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (1/1) ... [2024-09-21 19:07:31,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (1/1) ... [2024-09-21 19:07:31,376 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 [2024-09-21 19:07:31,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (1/1) ... [2024-09-21 19:07:31,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (1/1) ... [2024-09-21 19:07:31,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (1/1) ... [2024-09-21 19:07:31,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (1/1) ... [2024-09-21 19:07:31,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (1/1) ... [2024-09-21 19:07:31,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (1/1) ... [2024-09-21 19:07:31,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:31,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:31,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:31,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:31,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (1/1) ... [2024-09-21 19:07:31,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:31,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:31,418 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) [2024-09-21 19:07:31,422 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 [2024-09-21 19:07:31,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:31,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:31,467 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:31,467 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:07:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:07:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:07:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:07:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:31,519 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:31,521 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:31,545 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:31,655 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:31,672 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:31,672 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-21 19:07:31,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:31 BoogieIcfgContainer [2024-09-21 19:07:31,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:31,673 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:31,673 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:31,674 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:31,674 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:28" (1/4) ... [2024-09-21 19:07:31,674 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2d785e99 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:31, skipping insertion in model container [2024-09-21 19:07:31,674 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:31" (2/4) ... [2024-09-21 19:07:31,675 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2d785e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:31, skipping insertion in model container [2024-09-21 19:07:31,675 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:31" (3/4) ... [2024-09-21 19:07:31,675 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2d785e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:31, skipping insertion in model container [2024-09-21 19:07:31,675 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:31" (4/4) ... [2024-09-21 19:07:31,676 INFO L79 RefereeObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2024-09-21 19:07:31,678 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 19:07:31,679 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 25 edges. [2024-09-21 19:07:31,679 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 29 edges. [2024-09-21 19:07:31,679 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:31,680 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-21 19:07:31,731 INFO L314 BlockEncoder]: Initial Icfg 19 locations, 25 edges [2024-09-21 19:07:31,732 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:31,733 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:31,733 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:31,734 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:31,737 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:31,812 INFO L101 BaseMinimizeStates]: Removed 53 edges and 15 locations by large block encoding [2024-09-21 19:07:31,814 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:31,814 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:31,814 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:31,816 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:31,855 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2024-09-21 19:07:31,881 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 29 edges [2024-09-21 19:07:31,881 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:31,882 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:31,882 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:31,882 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:31,882 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:31,990 INFO L101 BaseMinimizeStates]: Removed 79 edges and 16 locations by large block encoding [2024-09-21 19:07:31,991 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:31,991 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:31,995 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:31,995 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:32,015 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2024-09-21 19:07:32,016 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) [2024-09-21 19:07:32,022 INFO L158 Benchmark]: Toolchain (without parser) took 932.03ms. Allocated memory is still 121.6MB. Free memory was 87.0MB in the beginning and 68.4MB in the end (delta: 18.6MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:32,022 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 121.6MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:32,023 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 121.6MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:32,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.39ms. Allocated memory is still 121.6MB. Free memory was 87.0MB in the beginning and 73.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:32,024 INFO L158 Benchmark]: Boogie Preprocessor took 40.89ms. Allocated memory is still 121.6MB. Free memory was 73.1MB in the beginning and 71.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:32,025 INFO L158 Benchmark]: RCFGBuilder took 280.96ms. Allocated memory is still 121.6MB. Free memory was 70.6MB in the beginning and 57.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 19:07:32,025 INFO L158 Benchmark]: Referee took 346.56ms. Allocated memory is still 121.6MB. Free memory was 57.0MB in the beginning and 68.4MB in the end (delta: -11.3MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:32,028 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 0.10ms. Allocated memory is still 121.6MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 121.6MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.39ms. Allocated memory is still 121.6MB. Free memory was 87.0MB in the beginning and 73.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.89ms. Allocated memory is still 121.6MB. Free memory was 73.1MB in the beginning and 71.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 280.96ms. Allocated memory is still 121.6MB. Free memory was 70.6MB in the beginning and 57.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 346.56ms. Allocated memory is still 121.6MB. Free memory was 57.0MB in the beginning and 68.4MB in the end (delta: -11.3MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 19:07:32,051 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c ../results/cpachecker-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/output/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:07:34,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:34,181 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 19:07:34,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:34,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:34,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:34,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:34,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:34,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:34,214 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:34,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:34,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:34,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:34,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:34,217 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:34,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:34,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:34,217 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:34,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:34,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:34,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:34,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:34,221 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:34,221 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 19:07:34,221 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 19:07:34,221 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:34,222 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 19:07:34,222 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:34,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:34,222 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:34,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:34,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:34,222 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:34,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:34,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:34,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:34,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:34,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:34,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:34,223 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 19:07:34,224 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 19:07:34,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:34,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:34,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:34,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:34,226 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 19:07:34,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:34,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:34,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:34,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:34,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:34,502 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:34,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-21 19:07:36,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:36,394 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:36,394 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-21 19:07:36,402 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/d63ca6f9b/99ae8ce1949f48be9398d8aeeca174e1/FLAGe9f814997 [2024-09-21 19:07:36,782 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/d63ca6f9b/99ae8ce1949f48be9398d8aeeca174e1 [2024-09-21 19:07:36,784 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:36,788 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:36,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/output/witness-2.1.yml [2024-09-21 19:07:36,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:36,826 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:36,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:36,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:36,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:36,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:36" (1/2) ... [2024-09-21 19:07:36,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a8a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:36, skipping insertion in model container [2024-09-21 19:07:36,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:36" (1/2) ... [2024-09-21 19:07:36,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c993b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:36, skipping insertion in model container [2024-09-21 19:07:36,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:36" (2/2) ... [2024-09-21 19:07:36,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a8a448 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:36, skipping insertion in model container [2024-09-21 19:07:36,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:36" (2/2) ... [2024-09-21 19:07:36,840 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:36,840 INFO L1541 ArrayList]: Function contract at [L15]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:36,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:37,034 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] [2024-09-21 19:07:37,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:37,059 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-21 19:07:37,102 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] [2024-09-21 19:07:37,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:37,122 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:37,123 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37 WrapperNode [2024-09-21 19:07:37,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:37,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:37,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:37,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:37,136 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 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,136 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 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,143 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 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,155 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 [2024-09-21 19:07:37,155 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 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,155 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 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,163 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 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,165 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 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,166 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 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,167 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 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:37,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:37,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:37,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:37,170 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 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:37,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:37,201 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) [2024-09-21 19:07:37,205 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 [2024-09-21 19:07:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:07:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-21 19:07:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-21 19:07:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-21 19:07:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:37,307 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:37,309 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:37,327 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:37,488 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:37,507 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:37,508 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-21 19:07:37,508 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:37 BoogieIcfgContainer [2024-09-21 19:07:37,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:37,509 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:37,509 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:37,509 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:37,509 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:36" (1/4) ... [2024-09-21 19:07:37,510 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@e66edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:37, skipping insertion in model container [2024-09-21 19:07:37,510 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:36" (2/4) ... [2024-09-21 19:07:37,510 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@e66edd and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:37, skipping insertion in model container [2024-09-21 19:07:37,510 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 21.09 07:07:37" (3/4) ... [2024-09-21 19:07:37,511 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@e66edd and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:37, skipping insertion in model container [2024-09-21 19:07:37,511 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:37" (4/4) ... [2024-09-21 19:07:37,512 INFO L79 RefereeObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2024-09-21 19:07:37,514 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 19:07:37,515 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 25 edges. [2024-09-21 19:07:37,515 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 29 edges. [2024-09-21 19:07:37,515 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:37,515 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-21 19:07:37,573 INFO L314 BlockEncoder]: Initial Icfg 19 locations, 25 edges [2024-09-21 19:07:37,580 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,583 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,584 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,585 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,587 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,678 INFO L101 BaseMinimizeStates]: Removed 53 edges and 15 locations by large block encoding [2024-09-21 19:07:37,680 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,680 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,680 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,680 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,700 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2024-09-21 19:07:37,716 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 29 edges [2024-09-21 19:07:37,717 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,717 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,717 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,717 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,718 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,796 INFO L101 BaseMinimizeStates]: Removed 79 edges and 16 locations by large block encoding [2024-09-21 19:07:37,797 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,798 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,798 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,799 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,826 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2024-09-21 19:07:37,828 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) [2024-09-21 19:07:37,833 INFO L158 Benchmark]: Toolchain (without parser) took 1005.61ms. Allocated memory is still 107.0MB. Free memory was 60.5MB in the beginning and 81.0MB in the end (delta: -20.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:37,833 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:37,834 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 107.0MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:37,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.51ms. Allocated memory is still 107.0MB. Free memory was 60.3MB in the beginning and 73.7MB in the end (delta: -13.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-09-21 19:07:37,835 INFO L158 Benchmark]: Boogie Preprocessor took 43.69ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 71.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:37,835 INFO L158 Benchmark]: RCFGBuilder took 339.24ms. Allocated memory is still 107.0MB. Free memory was 71.3MB in the beginning and 56.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:37,836 INFO L158 Benchmark]: Referee took 322.80ms. Allocated memory is still 107.0MB. Free memory was 56.3MB in the beginning and 81.0MB in the end (delta: -24.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:37,838 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 0.13ms. Allocated memory is still 62.9MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.11ms. Allocated memory is still 107.0MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.51ms. Allocated memory is still 107.0MB. Free memory was 60.3MB in the beginning and 73.7MB in the end (delta: -13.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.69ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 71.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 339.24ms. Allocated memory is still 107.0MB. Free memory was 71.3MB in the beginning and 56.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 322.80ms. Allocated memory is still 107.0MB. Free memory was 56.3MB in the beginning and 81.0MB in the end (delta: -24.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 19:07:37,861 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug