./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/bresenham-ll_valuebound20.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/nla-digbench-scaling/bresenham-ll_valuebound20.c ../results/automizer-verification-files/SV-COMP24_unreach-call/bresenham-ll_valuebound20.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 13:26:52,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:26:52,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:26:52,545 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:26:52,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:26:52,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:26:52,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:26:52,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:26:52,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:26:52,576 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:26:52,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:26:52,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:26:52,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:26:52,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:26:52,583 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:26:52,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:26:52,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:26:52,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:26:52,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:26:52,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:26:52,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:26:52,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:26:52,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:26:52,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:26:52,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:26:52,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:26:52,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:26:52,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:26:52,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:26:52,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:26:52,589 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:26:52,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:26:52,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:26:52,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:52,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:26:52,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:26:52,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:26:52,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:26:52,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:26:52,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:26:52,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:26:52,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:26:52,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:26:52,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:26:52,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:26:52,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:26:52,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:26:52,837 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:26:52,837 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:26:52,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/bresenham-ll_valuebound20.yml/witness-2.1.yml [2024-09-20 13:26:52,893 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:26:52,895 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:26:52,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c [2024-09-20 13:26:54,405 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:26:54,582 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:26:54,584 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c [2024-09-20 13:26:54,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/e3f7ec9aa/d863ff8062c347a3896cc628897c897d/FLAG2e0e22757 [2024-09-20 13:26:54,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/e3f7ec9aa/d863ff8062c347a3896cc628897c897d [2024-09-20 13:26:54,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:26:54,980 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:26:54,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:54,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:26:54,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:26:54,988 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 01:26:52" (1/2) ... [2024-09-20 13:26:54,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e53d3b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:54, skipping insertion in model container [2024-09-20 13:26:54,988 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 01:26:52" (1/2) ... [2024-09-20 13:26:54,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6816142d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:54, skipping insertion in model container [2024-09-20 13:26:54,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:54" (2/2) ... [2024-09-20 13:26:54,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e53d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54, skipping insertion in model container [2024-09-20 13:26:54,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:54" (2/2) ... [2024-09-20 13:26:55,001 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:26:55,001 INFO L1541 ArrayList]: Loop invariant at [L32-L47] ((((((X <= 20) && (((__int128) y * x) == (((__int128) X * y) + y))) && ((((long long) Y * 2) + (2 * ((__int128) Y * x))) == (((((__int128) X * y) * 2) + X) + v))) && (0 <= Y)) && (0 <= X)) || ((((X <= 20) && ((((long long) Y * 2) + (2 * ((__int128) Y * x))) == (((((__int128) X * y) * 2) + X) + v))) && (0 <= Y)) && (0 <= X))) [2024-09-20 13:26:55,002 INFO L1541 ArrayList]: Function contract at [L10]: requires null, ensures (\old(cond) != 0) [2024-09-20 13:26:55,002 INFO L1541 ArrayList]: Function contract at [L13]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:26:55,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:26:55,168 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/nla-digbench-scaling/bresenham-ll_valuebound20.c[597,610] [2024-09-20 13:26:55,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:55,192 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 13:26:55,226 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/nla-digbench-scaling/bresenham-ll_valuebound20.c[597,610] Start Parsing Local [2024-09-20 13:26:55,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:55,255 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:26:55,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55 WrapperNode [2024-09-20 13:26:55,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:55,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:26:55,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:26:55,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:26:55,270 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (1/1) ... [2024-09-20 13:26:55,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (1/1) ... [2024-09-20 13:26:55,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (1/1) ... [2024-09-20 13:26:55,302 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure assume_abort_if_not is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 13:26:55,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (1/1) ... [2024-09-20 13:26:55,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (1/1) ... [2024-09-20 13:26:55,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (1/1) ... [2024-09-20 13:26:55,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (1/1) ... [2024-09-20 13:26:55,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (1/1) ... [2024-09-20 13:26:55,311 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (1/1) ... [2024-09-20 13:26:55,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:26:55,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:26:55,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:26:55,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:26:55,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (1/1) ... [2024-09-20 13:26:55,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:55,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:26:55,350 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 13:26:55,352 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 13:26:55,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:26:55,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:26:55,391 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:26:55,391 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:26:55,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:26:55,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:26:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:26:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:26:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:26:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:26:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:26:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:26:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:26:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:26:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:26:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:26:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:26:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:26:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:26:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:26:55,448 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:26:55,452 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:26:55,589 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:26:55,611 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:26:55,641 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:26:55,641 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:26:55,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:55 BoogieIcfgContainer [2024-09-20 13:26:55,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:26:55,643 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:26:55,644 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:26:55,644 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:26:55,645 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 01:26:52" (1/4) ... [2024-09-20 13:26:55,646 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@733de63b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:55, skipping insertion in model container [2024-09-20 13:26:55,646 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:26:54" (2/4) ... [2024-09-20 13:26:55,647 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@733de63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:55, skipping insertion in model container [2024-09-20 13:26:55,647 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:55" (3/4) ... [2024-09-20 13:26:55,648 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@733de63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:55, skipping insertion in model container [2024-09-20 13:26:55,649 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:55" (4/4) ... [2024-09-20 13:26:55,650 INFO L79 RefereeObserver]: Analyzing ICFG bresenham-ll_valuebound20.c [2024-09-20 13:26:55,653 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:26:55,653 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:26:55,654 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L32-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 13:26:55,654 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 13:26:55,654 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L32-3 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 13:26:55,654 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L32-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:26:55,654 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:26:55,654 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 13:26:55,655 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from loop head to error location, 3 loop-free subgraphs from procedure entry to error location [2024-09-20 13:26:55,710 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:26:55,711 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,712 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,712 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,713 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,714 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,724 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:26:55,725 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,725 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,726 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,726 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,730 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,752 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:26:55,787 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:26:55,787 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,787 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,787 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,787 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,788 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,855 INFO L101 BaseMinimizeStates]: Removed 15 edges and 6 locations by large block encoding [2024-09-20 13:26:55,855 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,855 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,856 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,856 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,865 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,885 INFO L520 InvariantChecker]: The annotation(s) from loop head L32-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:26:55,903 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-20 13:26:55,904 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,904 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,904 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,904 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,904 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,915 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-20 13:26:55,915 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,916 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,916 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,916 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,916 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,920 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:26:55,933 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 13:26:55,934 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,934 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,934 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,934 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,935 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,952 INFO L101 BaseMinimizeStates]: Removed 16 edges and 5 locations by large block encoding [2024-09-20 13:26:55,953 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,953 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,953 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,954 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,956 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,986 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:26:55,986 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,986 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,986 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,986 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,986 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,992 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:26:55,993 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,993 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,993 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,993 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,994 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,997 INFO L520 InvariantChecker]: The annotation(s) from loop head L32-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:26:56,008 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:26:56,008 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:56,009 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:56,009 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:56,009 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:56,009 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:56,013 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:56,014 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:56,014 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:56,014 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:56,014 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:56,015 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:56,019 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:26:56,031 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:26:56,031 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:56,031 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:56,031 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:56,031 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:56,031 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:56,033 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:26:56,033 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:56,033 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:56,033 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:56,033 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:56,033 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:56,036 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:26:56,044 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-20 13:26:56,044 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@733de63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:26:56, skipping insertion in model container [2024-09-20 13:26:56,045 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:26:56,047 INFO L158 Benchmark]: Toolchain (without parser) took 1065.76ms. Allocated memory is still 165.7MB. Free memory was 92.4MB in the beginning and 86.1MB in the end (delta: 6.3MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-09-20 13:26:56,047 INFO L158 Benchmark]: Witness Parser took 0.26ms. Allocated memory is still 165.7MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:56,047 INFO L158 Benchmark]: CDTParser took 1.60ms. Allocated memory is still 165.7MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:56,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.22ms. Allocated memory is still 165.7MB. Free memory was 92.3MB in the beginning and 78.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:26:56,048 INFO L158 Benchmark]: Boogie Preprocessor took 55.23ms. Allocated memory is still 165.7MB. Free memory was 78.5MB in the beginning and 134.9MB in the end (delta: -56.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-09-20 13:26:56,049 INFO L158 Benchmark]: RCFGBuilder took 328.71ms. Allocated memory is still 165.7MB. Free memory was 134.9MB in the beginning and 122.9MB in the end (delta: 12.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-09-20 13:26:56,049 INFO L158 Benchmark]: Referee took 401.70ms. Allocated memory is still 165.7MB. Free memory was 122.9MB in the beginning and 86.1MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-09-20 13:26:56,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from loop head at line 32 to check that procedure precondition always holds at line 50. One counterexample starts in v=3, X=1, x=3, Y=1, y=2 and ends in v=3, x=3, X=1, xy=6, y=2, Y=1, yx=3. Annotation is valid for all loop-free paths from entry of procedure assume_abort_if_not to exit of procedure assume_abort_if_not. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 32 to check that procedure precondition always holds at line 35. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 15. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 32. Annotation is valid for all loop-free paths from loop head at line 32 to loop head at line 32. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.26ms. Allocated memory is still 165.7MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.60ms. Allocated memory is still 165.7MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.22ms. Allocated memory is still 165.7MB. Free memory was 92.3MB in the beginning and 78.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.23ms. Allocated memory is still 165.7MB. Free memory was 78.5MB in the beginning and 134.9MB in the end (delta: -56.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * RCFGBuilder took 328.71ms. Allocated memory is still 165.7MB. Free memory was 134.9MB in the beginning and 122.9MB in the end (delta: 12.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Referee took 401.70ms. Allocated memory is still 165.7MB. Free memory was 122.9MB in the beginning and 86.1MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-20 13:26:56,078 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE