./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version de325976 Calling Ultimate with: /root/.sdkman/candidates/java/current/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-invgen/id_build.i.v+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/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-de32597-m [2024-09-17 19:38:45,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-17 19:38:45,862 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-17 19:38:45,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-17 19:38:45,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-17 19:38:45,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-17 19:38:45,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-17 19:38:45,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-17 19:38:45,902 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-17 19:38:45,902 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-17 19:38:45,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-17 19:38:45,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-17 19:38:45,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-17 19:38:45,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-17 19:38:45,904 INFO L153 SettingsManager]: * Use SBE=true [2024-09-17 19:38:45,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-17 19:38:45,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-17 19:38:45,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-17 19:38:45,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-17 19:38:45,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-17 19:38:45,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-17 19:38:45,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-17 19:38:45,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-17 19:38:45,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-17 19:38:45,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-17 19:38:45,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-17 19:38:45,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-17 19:38:45,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-17 19:38:45,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-17 19:38:45,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-17 19:38:45,911 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-17 19:38:45,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-17 19:38:45,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-17 19:38:45,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:38:45,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-17 19:38:45,913 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-17 19:38:45,913 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-17 19:38:45,913 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-17 19:38:45,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-17 19:38:45,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-17 19:38:45,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-17 19:38:45,917 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-17 19:38:45,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-17 19:38:45,917 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-17 19:38:46,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-17 19:38:46,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-17 19:38:46,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-17 19:38:46,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-17 19:38:46,187 INFO L274 PluginConnector]: CDTParser initialized [2024-09-17 19:38:46,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-17 19:38:47,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-17 19:38:48,000 INFO L384 CDTParser]: Found 1 translation units. [2024-09-17 19:38:48,001 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-17 19:38:48,008 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f96d80d49/a7b4d26aa5284d85b0fd2f6d4f13cd5f/FLAG295feb008 [2024-09-17 19:38:48,024 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f96d80d49/a7b4d26aa5284d85b0fd2f6d4f13cd5f [2024-09-17 19:38:48,026 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-17 19:38:48,027 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-17 19:38:48,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-17 19:38:48,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-17 19:38:48,081 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-17 19:38:48,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-17 19:38:48,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-17 19:38:48,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-17 19:38:48,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:38:48" (1/2) ... [2024-09-17 19:38:48,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d294fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:38:48, skipping insertion in model container [2024-09-17 19:38:48,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:38:48" (1/2) ... [2024-09-17 19:38:48,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@17af876f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:38:48, skipping insertion in model container [2024-09-17 19:38:48,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:38:48" (2/2) ... [2024-09-17 19:38:48,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d294fa and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:38:48, skipping insertion in model container [2024-09-17 19:38:48,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:38:48" (2/2) ... [2024-09-17 19:38:48,111 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-17 19:38:48,112 INFO L1541 ArrayList]: Location invariant before [L23-L101] ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-17 19:38:48,112 INFO L1541 ArrayList]: Location invariant before [L39-L89] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-17 19:38:48,113 INFO L1541 ArrayList]: Location invariant before [L55-L86] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-17 19:38:48,134 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-17 19:38:48,304 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-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-17 19:38:48,310 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-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-17 19:38:48,312 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-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-09-17 19:38:48,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:38:48,328 INFO L200 MainTranslator]: Completed pre-run [2024-09-17 19:38:48,345 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-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-17 19:38:48,350 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-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-17 19:38:48,352 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-invgen/id_build.i.v+lhb-reducer.c[1375,1388] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-17 19:38:48,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:38:48,405 INFO L204 MainTranslator]: Completed translation [2024-09-17 19:38:48,406 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:38:48 WrapperNode [2024-09-17 19:38:48,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-17 19:38:48,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-17 19:38:48,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-17 19:38:48,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-17 19:38:48,424 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 17.09 07:38:48" (1/1) ... [2024-09-17 19:38:48,424 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 17.09 07:38:48" (1/1) ... [2024-09-17 19:38:48,431 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 17.09 07:38:48" (1/1) ... [2024-09-17 19:38:48,449 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-17 19:38:48,452 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 17.09 07:38:48" (1/1) ... [2024-09-17 19:38:48,453 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 17.09 07:38:48" (1/1) ... [2024-09-17 19:38:48,461 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 17.09 07:38:48" (1/1) ... [2024-09-17 19:38:48,466 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 17.09 07:38:48" (1/1) ... [2024-09-17 19:38:48,467 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 17.09 07:38:48" (1/1) ... [2024-09-17 19:38:48,468 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 17.09 07:38:48" (1/1) ... [2024-09-17 19:38:48,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-17 19:38:48,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-17 19:38:48,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-17 19:38:48,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-17 19:38:48,474 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 17.09 07:38:48" (1/1) ... [2024-09-17 19:38:48,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:38:48,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-17 19:38:48,506 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) [2024-09-17 19:38:48,509 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 [2024-09-17 19:38:48,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-17 19:38:48,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-17 19:38:48,556 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-17 19:38:48,556 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-17 19:38:48,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-17 19:38:48,556 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-17 19:38:48,556 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-17 19:38:48,556 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-17 19:38:48,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-17 19:38:48,557 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-17 19:38:48,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-17 19:38:48,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-17 19:38:48,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-17 19:38:48,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-17 19:38:48,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-17 19:38:48,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-17 19:38:48,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-17 19:38:48,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-17 19:38:48,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-17 19:38:48,634 INFO L242 CfgBuilder]: Building ICFG [2024-09-17 19:38:48,638 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-17 19:38:48,794 INFO L291 CfgBuilder]: Performing block encoding [2024-09-17 19:38:48,846 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-17 19:38:48,847 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-17 19:38:48,848 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:38:48 BoogieIcfgContainer [2024-09-17 19:38:48,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-17 19:38:48,849 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-17 19:38:48,849 INFO L270 PluginConnector]: Initializing Referee... [2024-09-17 19:38:48,850 INFO L274 PluginConnector]: Referee initialized [2024-09-17 19:38:48,850 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 17.09 07:38:48" (1/4) ... [2024-09-17 19:38:48,851 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ce4c46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 17.09 07:38:48, skipping insertion in model container [2024-09-17 19:38:48,851 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:38:48" (2/4) ... [2024-09-17 19:38:48,852 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ce4c46f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 17.09 07:38:48, skipping insertion in model container [2024-09-17 19:38:48,852 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 17.09 07:38:48" (3/4) ... [2024-09-17 19:38:48,852 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ce4c46f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 17.09 07:38:48, skipping insertion in model container [2024-09-17 19:38:48,853 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:38:48" (4/4) ... [2024-09-17 19:38:48,854 INFO L79 RefereeObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-17 19:38:48,860 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-17 19:38:48,860 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-17 19:38:48,861 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-17 19:38:48,861 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-17 19:38:48,861 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-17 19:38:48,861 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-17 19:38:48,861 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-17 19:38:48,862 INFO L131 InvariantChecker]: Will check 6 loop-free subgraphs from procedure entry to error location [2024-09-17 19:38:48,923 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-17 19:38:48,924 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:38:48,925 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:38:48,926 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:38:48,927 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:38:48,929 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:48,989 INFO L101 BaseMinimizeStates]: Removed 27 edges and 8 locations by large block encoding [2024-09-17 19:38:48,991 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:48,991 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:38:48,992 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:38:48,992 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:38:48,994 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2024-09-17 19:38:49,008 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-17 19:38:49,008 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:38:49,008 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:38:49,009 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:38:49,009 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:38:49,009 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:49,036 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-17 19:38:49,038 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:49,038 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:38:49,039 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:38:49,039 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:38:49,039 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2024-09-17 19:38:49,050 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2024-09-17 19:38:49,051 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:38:49,051 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:38:49,051 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:38:49,052 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:38:49,052 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:49,074 INFO L101 BaseMinimizeStates]: Removed 25 edges and 9 locations by large block encoding [2024-09-17 19:38:49,076 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:49,077 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:38:49,077 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:38:49,077 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:38:49,077 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2024-09-17 19:38:49,089 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-17 19:38:49,089 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:38:49,089 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:38:49,089 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:38:49,090 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:38:49,091 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:49,097 INFO L101 BaseMinimizeStates]: Removed 7 edges and 2 locations by large block encoding [2024-09-17 19:38:49,098 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:49,098 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:38:49,098 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:38:49,098 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:38:49,098 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-17 19:38:49,099 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) [2024-09-17 19:38:49,105 INFO L158 Benchmark]: Toolchain (without parser) took 1023.03ms. Allocated memory is still 163.6MB. Free memory was 116.1MB in the beginning and 61.8MB in the end (delta: 54.2MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2024-09-17 19:38:49,107 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:38:49,108 INFO L158 Benchmark]: Witness Parser took 0.29ms. Allocated memory is still 163.6MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:38:49,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.90ms. Allocated memory is still 163.6MB. Free memory was 116.1MB in the beginning and 101.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-17 19:38:49,110 INFO L158 Benchmark]: Boogie Preprocessor took 61.40ms. Allocated memory is still 163.6MB. Free memory was 101.6MB in the beginning and 99.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-17 19:38:49,111 INFO L158 Benchmark]: RCFGBuilder took 376.08ms. Allocated memory is still 163.6MB. Free memory was 99.5MB in the beginning and 86.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-17 19:38:49,111 INFO L158 Benchmark]: Referee took 254.80ms. Allocated memory is still 163.6MB. Free memory was 86.1MB in the beginning and 61.8MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-09-17 19:38:49,114 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 0.24ms. Allocated memory is still 163.6MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.29ms. Allocated memory is still 163.6MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.90ms. Allocated memory is still 163.6MB. Free memory was 116.1MB in the beginning and 101.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.40ms. Allocated memory is still 163.6MB. Free memory was 101.6MB in the beginning and 99.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.08ms. Allocated memory is still 163.6MB. Free memory was 99.5MB in the beginning and 86.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 254.80ms. Allocated memory is still 163.6MB. Free memory was 86.1MB in the beginning and 61.8MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-17 19:38:49,147 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/current/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-invgen/id_build.i.v+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/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-de32597-m [2024-09-17 19:38:51,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-17 19:38:51,462 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-17 19:38:51,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-17 19:38:51,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-17 19:38:51,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-17 19:38:51,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-17 19:38:51,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-17 19:38:51,502 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-17 19:38:51,503 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-17 19:38:51,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-17 19:38:51,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-17 19:38:51,504 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-17 19:38:51,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-17 19:38:51,505 INFO L153 SettingsManager]: * Use SBE=true [2024-09-17 19:38:51,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-17 19:38:51,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-17 19:38:51,506 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-17 19:38:51,506 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-17 19:38:51,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-17 19:38:51,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-17 19:38:51,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-17 19:38:51,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-17 19:38:51,513 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-17 19:38:51,515 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-17 19:38:51,516 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-17 19:38:51,516 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-17 19:38:51,516 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-17 19:38:51,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-17 19:38:51,517 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-17 19:38:51,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-17 19:38:51,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-17 19:38:51,518 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-17 19:38:51,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-17 19:38:51,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-17 19:38:51,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:38:51,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-17 19:38:51,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-17 19:38:51,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-17 19:38:51,519 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-17 19:38:51,519 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-17 19:38:51,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-17 19:38:51,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-17 19:38:51,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-17 19:38:51,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-17 19:38:51,521 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-17 19:38:51,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-17 19:38:51,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-17 19:38:51,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-17 19:38:51,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-17 19:38:51,862 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-17 19:38:51,862 INFO L274 PluginConnector]: CDTParser initialized [2024-09-17 19:38:51,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-17 19:38:53,487 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-17 19:38:53,696 INFO L384 CDTParser]: Found 1 translation units. [2024-09-17 19:38:53,697 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-17 19:38:53,704 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/e025d645f/cc4be6076af44b2db1595dde6b2e310d/FLAGcae68d4ae [2024-09-17 19:38:53,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/e025d645f/cc4be6076af44b2db1595dde6b2e310d [2024-09-17 19:38:53,719 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-17 19:38:53,720 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-17 19:38:53,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-17 19:38:53,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-17 19:38:53,774 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-17 19:38:53,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-17 19:38:53,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-17 19:38:53,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-17 19:38:53,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:38:53" (1/2) ... [2024-09-17 19:38:53,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149d5e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:38:53, skipping insertion in model container [2024-09-17 19:38:53,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:38:53" (1/2) ... [2024-09-17 19:38:53,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@dd538de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:38:53, skipping insertion in model container [2024-09-17 19:38:53,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:38:53" (2/2) ... [2024-09-17 19:38:53,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149d5e8b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:38:53, skipping insertion in model container [2024-09-17 19:38:53,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:38:53" (2/2) ... [2024-09-17 19:38:53,801 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-17 19:38:53,802 INFO L1541 ArrayList]: Location invariant before [L23-L101] ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-17 19:38:53,802 INFO L1541 ArrayList]: Location invariant before [L39-L89] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-17 19:38:53,802 INFO L1541 ArrayList]: Location invariant before [L55-L86] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-17 19:38:53,823 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-17 19:38:54,011 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-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-17 19:38:54,020 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-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-17 19:38:54,023 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-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-09-17 19:38:54,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:38:54,047 INFO L200 MainTranslator]: Completed pre-run [2024-09-17 19:38:54,073 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-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-17 19:38:54,077 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-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-17 19:38:54,080 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-invgen/id_build.i.v+lhb-reducer.c[1375,1388] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-17 19:38:54,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:38:54,142 INFO L204 MainTranslator]: Completed translation [2024-09-17 19:38:54,143 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:38:54 WrapperNode [2024-09-17 19:38:54,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-17 19:38:54,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-17 19:38:54,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-17 19:38:54,145 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-17 19:38:54,159 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 17.09 07:38:54" (1/1) ... [2024-09-17 19:38:54,160 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 17.09 07:38:54" (1/1) ... [2024-09-17 19:38:54,169 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 17.09 07:38:54" (1/1) ... [2024-09-17 19:38:54,182 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-17 19:38:54,183 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 17.09 07:38:54" (1/1) ... [2024-09-17 19:38:54,183 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 17.09 07:38:54" (1/1) ... [2024-09-17 19:38:54,189 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 17.09 07:38:54" (1/1) ... [2024-09-17 19:38:54,194 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 17.09 07:38:54" (1/1) ... [2024-09-17 19:38:54,199 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 17.09 07:38:54" (1/1) ... [2024-09-17 19:38:54,200 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 17.09 07:38:54" (1/1) ... [2024-09-17 19:38:54,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-17 19:38:54,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-17 19:38:54,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-17 19:38:54,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-17 19:38:54,207 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 17.09 07:38:54" (1/1) ... [2024-09-17 19:38:54,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:38:54,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-17 19:38:54,240 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) [2024-09-17 19:38:54,244 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 [2024-09-17 19:38:54,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-17 19:38:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-17 19:38:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-17 19:38:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-17 19:38:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-17 19:38:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-17 19:38:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-17 19:38:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-17 19:38:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-17 19:38:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-17 19:38:54,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-17 19:38:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-17 19:38:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-17 19:38:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-17 19:38:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-17 19:38:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-17 19:38:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-17 19:38:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-17 19:38:54,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-17 19:38:54,387 INFO L242 CfgBuilder]: Building ICFG [2024-09-17 19:38:54,391 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-17 19:38:54,597 INFO L291 CfgBuilder]: Performing block encoding [2024-09-17 19:38:54,642 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-17 19:38:54,642 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-17 19:38:54,643 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:38:54 BoogieIcfgContainer [2024-09-17 19:38:54,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-17 19:38:54,643 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-17 19:38:54,644 INFO L270 PluginConnector]: Initializing Referee... [2024-09-17 19:38:54,644 INFO L274 PluginConnector]: Referee initialized [2024-09-17 19:38:54,645 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 17.09 07:38:53" (1/4) ... [2024-09-17 19:38:54,645 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6a984517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 17.09 07:38:54, skipping insertion in model container [2024-09-17 19:38:54,645 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:38:53" (2/4) ... [2024-09-17 19:38:54,646 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6a984517 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 17.09 07:38:54, skipping insertion in model container [2024-09-17 19:38:54,646 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 17.09 07:38:54" (3/4) ... [2024-09-17 19:38:54,646 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6a984517 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 17.09 07:38:54, skipping insertion in model container [2024-09-17 19:38:54,646 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:38:54" (4/4) ... [2024-09-17 19:38:54,648 INFO L79 RefereeObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-17 19:38:54,652 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-17 19:38:54,653 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-17 19:38:54,654 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-17 19:38:54,654 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-17 19:38:54,654 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-17 19:38:54,654 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-17 19:38:54,654 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-17 19:38:54,655 INFO L131 InvariantChecker]: Will check 6 loop-free subgraphs from procedure entry to error location [2024-09-17 19:38:54,710 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-17 19:38:54,711 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:38:54,711 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:38:54,712 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:38:54,713 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:38:54,715 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:54,807 INFO L101 BaseMinimizeStates]: Removed 27 edges and 8 locations by large block encoding [2024-09-17 19:38:54,808 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:54,810 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:38:54,810 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:38:54,811 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:38:54,812 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2024-09-17 19:38:54,834 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-17 19:38:54,836 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:38:54,836 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:38:54,836 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:38:54,836 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:38:54,836 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:54,883 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-17 19:38:54,884 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:54,884 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:38:54,885 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:38:54,885 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:38:54,886 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2024-09-17 19:38:54,899 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2024-09-17 19:38:54,901 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:38:54,901 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:38:54,901 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:38:54,901 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:38:54,902 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:54,930 INFO L101 BaseMinimizeStates]: Removed 25 edges and 9 locations by large block encoding [2024-09-17 19:38:54,933 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:54,933 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:38:54,934 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:38:54,934 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:38:54,934 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2024-09-17 19:38:54,945 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-17 19:38:54,946 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:38:54,946 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:38:54,946 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:38:54,946 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:38:54,946 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:54,952 INFO L101 BaseMinimizeStates]: Removed 7 edges and 2 locations by large block encoding [2024-09-17 19:38:54,952 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:38:54,953 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:38:54,953 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:38:54,953 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:38:54,953 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-17 19:38:54,954 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) [2024-09-17 19:38:54,959 INFO L158 Benchmark]: Toolchain (without parser) took 1184.30ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 37.5MB in the beginning and 33.2MB in the end (delta: 4.3MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-09-17 19:38:54,959 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 62.9MB. Free memory was 39.7MB in the beginning and 39.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:38:54,960 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 62.9MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:38:54,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.99ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 37.3MB in the beginning and 57.6MB in the end (delta: -20.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-09-17 19:38:54,961 INFO L158 Benchmark]: Boogie Preprocessor took 60.71ms. Allocated memory is still 79.7MB. Free memory was 57.6MB in the beginning and 55.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:38:54,961 INFO L158 Benchmark]: RCFGBuilder took 437.07ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 40.9MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-17 19:38:54,961 INFO L158 Benchmark]: Referee took 314.38ms. Allocated memory is still 79.7MB. Free memory was 40.9MB in the beginning and 33.2MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-17 19:38:54,964 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 0.37ms. Allocated memory is still 62.9MB. Free memory was 39.7MB in the beginning and 39.6MB 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 62.9MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.99ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 37.3MB in the beginning and 57.6MB in the end (delta: -20.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.71ms. Allocated memory is still 79.7MB. Free memory was 57.6MB in the beginning and 55.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 437.07ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 40.9MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Referee took 314.38ms. Allocated memory is still 79.7MB. Free memory was 40.9MB in the beginning and 33.2MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-17 19:38:54,988 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug