./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 f1d7dc9d 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-f1d7dc9-m [2024-09-20 13:25:35,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:35,142 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:25:35,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:35,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:35,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:35,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:35,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:35,174 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:35,176 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:35,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:35,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:35,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:35,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:35,178 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:35,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:35,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:35,179 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:35,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:25:35,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:35,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:35,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:35,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:35,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:35,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:35,182 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:35,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:35,182 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:35,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:35,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:35,183 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:35,183 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:35,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:35,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:35,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:35,184 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:35,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:35,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:25:35,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:25:35,185 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:35,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:35,186 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:35,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:35,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:35,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:35,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:35,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:35,402 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:35,402 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:35,403 INFO L431 ainManager$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 [2024-09-20 13:25:35,478 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:35,479 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:35,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-20 13:25:36,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:25:36,855 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:25:36,856 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-20 13:25:36,861 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/57f550c83/fafea086071644c1b8582ec5d5a96a39/FLAGa4d7f6991 [2024-09-20 13:25:37,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/57f550c83/fafea086071644c1b8582ec5d5a96a39 [2024-09-20 13:25:37,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:25:37,263 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:25:37,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:37,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:25:37,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:25:37,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:35" (1/2) ... [2024-09-20 13:25:37,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c716e5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:37, skipping insertion in model container [2024-09-20 13:25:37,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:35" (1/2) ... [2024-09-20 13:25:37,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e5dcd35 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:37, skipping insertion in model container [2024-09-20 13:25:37,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:37" (2/2) ... [2024-09-20 13:25:37,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c716e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37, skipping insertion in model container [2024-09-20 13:25:37,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:37" (2/2) ... [2024-09-20 13:25:37,281 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:25:37,282 INFO L1541 ArrayList]: Location invariant before [L23-L101] ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-20 13:25:37,282 INFO L1541 ArrayList]: Location invariant before [L55-L86] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-20 13:25:37,283 INFO L1541 ArrayList]: Location invariant before [L39-L89] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-20 13:25:37,302 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:25:37,445 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] [2024-09-20 13:25:37,452 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] [2024-09-20 13:25:37,455 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] [2024-09-20 13:25:37,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:37,470 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:25:37,486 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] [2024-09-20 13:25:37,487 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] [2024-09-20 13:25:37,489 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 [2024-09-20 13:25:37,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:37,523 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:25:37,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37 WrapperNode [2024-09-20 13:25:37,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:37,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:25:37,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:25:37,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:25:37,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (1/1) ... [2024-09-20 13:25:37,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (1/1) ... [2024-09-20 13:25:37,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (1/1) ... [2024-09-20 13:25:37,585 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]. [2024-09-20 13:25:37,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (1/1) ... [2024-09-20 13:25:37,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (1/1) ... [2024-09-20 13:25:37,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (1/1) ... [2024-09-20 13:25:37,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (1/1) ... [2024-09-20 13:25:37,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (1/1) ... [2024-09-20 13:25:37,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (1/1) ... [2024-09-20 13:25:37,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:25:37,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:25:37,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:25:37,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:25:37,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (1/1) ... [2024-09-20 13:25:37,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:37,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:25:37,653 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) [2024-09-20 13:25:37,658 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 [2024-09-20 13:25:37,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:25:37,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:25:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:25:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:25:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:25:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:25:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:25:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:25:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:25:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:25:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:25:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:25:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:25:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:25:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:25:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:25:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-20 13:25:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-20 13:25:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:25:37,766 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:25:37,769 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:25:37,899 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:25:37,930 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:25:37,931 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:25:37,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:37 BoogieIcfgContainer [2024-09-20 13:25:37,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:25:37,932 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:25:37,932 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:25:37,933 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:25:37,933 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:35" (1/4) ... [2024-09-20 13:25:37,934 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@497deb74 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:37, skipping insertion in model container [2024-09-20 13:25:37,935 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:25:37" (2/4) ... [2024-09-20 13:25:37,935 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@497deb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:37, skipping insertion in model container [2024-09-20 13:25:37,935 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:37" (3/4) ... [2024-09-20 13:25:37,936 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@497deb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:37, skipping insertion in model container [2024-09-20 13:25:37,936 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:37" (4/4) ... [2024-09-20 13:25:37,938 INFO L79 RefereeObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-20 13:25:37,940 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:25:37,941 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-20 13:25:37,941 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-20 13:25:37,942 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-20 13:25:37,942 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:25:37,942 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-20 13:25:37,942 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-20 13:25:37,942 INFO L131 InvariantChecker]: Will check 6 loop-free subgraphs from procedure entry to error location [2024-09-20 13:25:37,976 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-20 13:25:37,977 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:37,978 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:37,978 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:37,979 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:37,981 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:38,017 INFO L101 BaseMinimizeStates]: Removed 27 edges and 8 locations by large block encoding [2024-09-20 13:25:38,018 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:38,018 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:38,018 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:38,019 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:38,019 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2024-09-20 13:25:38,028 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-20 13:25:38,029 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:38,029 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:38,029 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:38,029 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:38,029 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:38,052 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-20 13:25:38,052 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:38,053 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:38,053 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:38,053 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:38,053 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2024-09-20 13:25:38,062 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2024-09-20 13:25:38,063 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:38,063 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:38,063 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:38,063 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:38,063 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:38,084 INFO L101 BaseMinimizeStates]: Removed 25 edges and 9 locations by large block encoding [2024-09-20 13:25:38,084 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:38,085 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:38,085 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:38,085 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:38,085 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2024-09-20 13:25:38,092 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:38,093 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:38,093 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:38,093 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:38,093 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:38,093 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:38,099 INFO L101 BaseMinimizeStates]: Removed 7 edges and 2 locations by large block encoding [2024-09-20 13:25:38,100 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:38,100 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:38,100 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:38,100 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:38,100 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 13:25:38,101 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) [2024-09-20 13:25:38,105 INFO L158 Benchmark]: Toolchain (without parser) took 841.58ms. Allocated memory is still 163.6MB. Free memory was 92.3MB in the beginning and 95.2MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:38,105 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 163.6MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:38,109 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 163.6MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:38,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.07ms. Allocated memory is still 163.6MB. Free memory was 92.1MB in the beginning and 78.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:25:38,110 INFO L158 Benchmark]: Boogie Preprocessor took 90.06ms. Allocated memory is still 163.6MB. Free memory was 78.1MB in the beginning and 133.6MB in the end (delta: -55.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:38,111 INFO L158 Benchmark]: RCFGBuilder took 314.06ms. Allocated memory is still 163.6MB. Free memory was 133.6MB in the beginning and 119.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:38,111 INFO L158 Benchmark]: Referee took 171.47ms. Allocated memory is still 163.6MB. Free memory was 119.8MB in the beginning and 95.2MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-09-20 13:25:38,113 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 0.19ms. Allocated memory is still 163.6MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.65ms. Allocated memory is still 163.6MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.07ms. Allocated memory is still 163.6MB. Free memory was 92.1MB in the beginning and 78.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.06ms. Allocated memory is still 163.6MB. Free memory was 78.1MB in the beginning and 133.6MB in the end (delta: -55.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * RCFGBuilder took 314.06ms. Allocated memory is still 163.6MB. Free memory was 133.6MB in the beginning and 119.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 171.47ms. Allocated memory is still 163.6MB. Free memory was 119.8MB in the beginning and 95.2MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:25:38,154 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-f1d7dc9-m [2024-09-20 13:25:39,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:40,041 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:25:40,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:40,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:40,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:40,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:40,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:40,069 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:40,071 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:40,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:40,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:40,072 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:40,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:40,073 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:40,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:40,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:40,073 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:40,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:40,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:40,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:40,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:40,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:40,076 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:25:40,076 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:25:40,077 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:40,077 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:25:40,077 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:40,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:40,077 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:40,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:40,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:40,078 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:40,078 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:40,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:40,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:40,078 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:40,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:40,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:40,078 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:25:40,079 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:25:40,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:40,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:40,080 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:40,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:40,081 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:25:40,081 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:40,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:40,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:40,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:40,370 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:40,374 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:40,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-20 13:25:41,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:25:41,888 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:25:41,889 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-20 13:25:41,899 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/460860783/a6e032ac1d1c4d64a1bb992165f00ab9/FLAG4c551d0b4 [2024-09-20 13:25:41,913 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/460860783/a6e032ac1d1c4d64a1bb992165f00ab9 [2024-09-20 13:25:41,916 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:41,917 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:41,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-20 13:25:41,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:25:41,968 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:25:41,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:41,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:25:41,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:25:41,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:41" (1/2) ... [2024-09-20 13:25:41,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76318d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:41, skipping insertion in model container [2024-09-20 13:25:41,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:41" (1/2) ... [2024-09-20 13:25:41,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@185493c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:41, skipping insertion in model container [2024-09-20 13:25:41,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:41" (2/2) ... [2024-09-20 13:25:41,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76318d44 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:41, skipping insertion in model container [2024-09-20 13:25:41,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:41" (2/2) ... [2024-09-20 13:25:41,989 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:25:41,990 INFO L1541 ArrayList]: Location invariant before [L39-L89] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-20 13:25:41,990 INFO L1541 ArrayList]: Location invariant before [L23-L101] ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-20 13:25:41,990 INFO L1541 ArrayList]: Location invariant before [L55-L86] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-20 13:25:42,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:25:42,151 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] [2024-09-20 13:25:42,160 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] [2024-09-20 13:25:42,162 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] [2024-09-20 13:25:42,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:42,181 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:25:42,196 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] [2024-09-20 13:25:42,198 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] [2024-09-20 13:25:42,201 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 [2024-09-20 13:25:42,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:42,257 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:25:42,258 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:42 WrapperNode [2024-09-20 13:25:42,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:42,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:25:42,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:25:42,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:25:42,272 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 20.09 01:25:42" (1/1) ... [2024-09-20 13:25:42,273 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 20.09 01:25:42" (1/1) ... [2024-09-20 13:25:42,281 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 20.09 01:25:42" (1/1) ... [2024-09-20 13:25:42,297 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]. [2024-09-20 13:25:42,298 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 20.09 01:25:42" (1/1) ... [2024-09-20 13:25:42,298 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 20.09 01:25:42" (1/1) ... [2024-09-20 13:25:42,309 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 20.09 01:25:42" (1/1) ... [2024-09-20 13:25:42,311 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 20.09 01:25:42" (1/1) ... [2024-09-20 13:25:42,312 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 20.09 01:25:42" (1/1) ... [2024-09-20 13:25:42,314 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 20.09 01:25:42" (1/1) ... [2024-09-20 13:25:42,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:25:42,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:25:42,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:25:42,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:25:42,319 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 20.09 01:25:42" (1/1) ... [2024-09-20 13:25:42,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:42,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:25:42,345 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) [2024-09-20 13:25:42,348 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 [2024-09-20 13:25:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:25:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:25:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:25:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:25:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:25:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:25:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:25:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:25:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:25:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:25:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:25:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:25:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:25:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:25:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-20 13:25:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:25:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-20 13:25:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-20 13:25:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:25:42,460 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:25:42,462 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:25:42,641 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:25:42,685 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:25:42,686 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:25:42,686 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:42 BoogieIcfgContainer [2024-09-20 13:25:42,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:25:42,687 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:25:42,688 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:25:42,689 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:25:42,689 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:25:41" (1/4) ... [2024-09-20 13:25:42,689 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5aa4bc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:42, skipping insertion in model container [2024-09-20 13:25:42,689 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:41" (2/4) ... [2024-09-20 13:25:42,690 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5aa4bc1c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:42, skipping insertion in model container [2024-09-20 13:25:42,690 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 20.09 01:25:42" (3/4) ... [2024-09-20 13:25:42,690 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5aa4bc1c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:42, skipping insertion in model container [2024-09-20 13:25:42,690 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:42" (4/4) ... [2024-09-20 13:25:42,691 INFO L79 RefereeObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-20 13:25:42,694 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:25:42,695 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-20 13:25:42,696 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-20 13:25:42,696 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-20 13:25:42,696 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:25:42,696 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-20 13:25:42,697 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-20 13:25:42,697 INFO L131 InvariantChecker]: Will check 6 loop-free subgraphs from procedure entry to error location [2024-09-20 13:25:42,742 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-20 13:25:42,743 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:42,744 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:42,745 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:42,746 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:42,748 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:42,818 INFO L101 BaseMinimizeStates]: Removed 27 edges and 8 locations by large block encoding [2024-09-20 13:25:42,819 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:42,819 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:42,820 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:42,820 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:42,820 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2024-09-20 13:25:42,830 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-20 13:25:42,831 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:42,831 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:42,831 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:42,831 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:42,831 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:42,853 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-20 13:25:42,853 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:42,853 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:42,853 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:42,853 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:42,854 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2024-09-20 13:25:42,865 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2024-09-20 13:25:42,865 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:42,865 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:42,865 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:42,865 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:42,865 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:42,890 INFO L101 BaseMinimizeStates]: Removed 25 edges and 9 locations by large block encoding [2024-09-20 13:25:42,891 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:42,891 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:42,891 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:42,891 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:42,891 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2024-09-20 13:25:42,898 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:42,899 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:42,899 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:42,899 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:42,899 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:42,899 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:42,910 INFO L101 BaseMinimizeStates]: Removed 7 edges and 2 locations by large block encoding [2024-09-20 13:25:42,911 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:42,911 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:42,911 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:42,912 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:42,912 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 13:25:42,913 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) [2024-09-20 13:25:42,917 INFO L158 Benchmark]: Toolchain (without parser) took 948.34ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 40.8MB in the beginning and 47.0MB in the end (delta: -6.2MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2024-09-20 13:25:42,918 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:42,918 INFO L158 Benchmark]: Witness Parser took 0.62ms. Allocated memory is still 65.0MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:42,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.63ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 40.6MB in the beginning and 67.0MB in the end (delta: -26.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-20 13:25:42,920 INFO L158 Benchmark]: Boogie Preprocessor took 58.80ms. Allocated memory is still 88.1MB. Free memory was 67.0MB in the beginning and 64.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:25:42,920 INFO L158 Benchmark]: RCFGBuilder took 368.49ms. Allocated memory is still 88.1MB. Free memory was 64.6MB in the beginning and 50.4MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:25:42,920 INFO L158 Benchmark]: Referee took 228.38ms. Allocated memory is still 88.1MB. Free memory was 50.4MB in the beginning and 47.0MB in the end (delta: 3.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-09-20 13:25:42,924 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 0.16ms. Allocated memory is still 65.0MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.62ms. Allocated memory is still 65.0MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.63ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 40.6MB in the beginning and 67.0MB in the end (delta: -26.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.80ms. Allocated memory is still 88.1MB. Free memory was 67.0MB in the beginning and 64.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.49ms. Allocated memory is still 88.1MB. Free memory was 64.6MB in the beginning and 50.4MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 228.38ms. Allocated memory is still 88.1MB. Free memory was 50.4MB in the beginning and 47.0MB in the end (delta: 3.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:25:42,947 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