./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 a9b967e5 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-dev-a9b967e-m [2024-09-11 20:48:16,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:48:16,146 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:48:16,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:48:16,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:48:16,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:48:16,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:48:16,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:48:16,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:48:16,180 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:48:16,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:48:16,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:48:16,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:48:16,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:48:16,182 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:48:16,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:48:16,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:48:16,182 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:48:16,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:48:16,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:48:16,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:48:16,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:48:16,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:48:16,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:48:16,184 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:48:16,184 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:48:16,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:48:16,185 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:48:16,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:48:16,185 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:48:16,185 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:48:16,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:48:16,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:48:16,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:48:16,186 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:48:16,186 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:48:16,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:48:16,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:48:16,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:48:16,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:48:16,188 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:48:16,188 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:48:16,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:48:16,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:48:16,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:48:16,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:48:16,382 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:48:16,383 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:48:16,384 INFO L431 ainManager$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 [2024-09-11 20:48:16,454 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:48:16,458 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:48:16,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c [2024-09-11 20:48:17,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:48:17,956 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:48:17,956 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c [2024-09-11 20:48:17,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/d6eb21a7a/b378737e755141b6bc9ab42660f54713/FLAG3b96e33c6 [2024-09-11 20:48:18,353 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/d6eb21a7a/b378737e755141b6bc9ab42660f54713 [2024-09-11 20:48:18,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:48:18,354 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:48:18,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:48:18,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:48:18,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:48:18,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:48:16" (1/2) ... [2024-09-11 20:48:18,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a815870 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:48:18, skipping insertion in model container [2024-09-11 20:48:18,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:48:16" (1/2) ... [2024-09-11 20:48:18,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40febea8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:48:18, skipping insertion in model container [2024-09-11 20:48:18,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:48:18" (2/2) ... [2024-09-11 20:48:18,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a815870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18, skipping insertion in model container [2024-09-11 20:48:18,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:48:18" (2/2) ... [2024-09-11 20:48:18,374 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:48:18,376 INFO L1541 ArrayList]: Loop invariant at [L32-L47] ((((((((((__int128) X * y) * 2) + X) + v) == ((((__int128) Y * x) * 2) + ((long long) 2 * Y))) && (X <= 20)) && (0 <= Y)) && (0 <= X)) || ((((((((((__int128) X * y) * 2) + X) + v) == ((((__int128) Y * x) * 2) + ((long long) 2 * Y))) && (X <= 20)) && (0 <= Y)) && ((((__int128) X * y) + y) == ((__int128) x * y))) && (0 <= X))) [2024-09-11 20:48:18,376 INFO L1541 ArrayList]: Function contract at [L13]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-11 20:48:18,376 INFO L1541 ArrayList]: Function contract at [L10]: requires null, ensures (\old(cond) != 0) [2024-09-11 20:48:18,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:48:18,508 WARN L247 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] [2024-09-11 20:48:18,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:48:18,535 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-11 20:48:18,567 WARN L247 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 [2024-09-11 20:48:18,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:48:18,602 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:48:18,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18 WrapperNode [2024-09-11 20:48:18,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:48:18,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:48:18,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:48:18,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:48:18,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (1/1) ... [2024-09-11 20:48:18,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (1/1) ... [2024-09-11 20:48:18,620 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (1/1) ... [2024-09-11 20:48:18,635 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 [2024-09-11 20:48:18,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (1/1) ... [2024-09-11 20:48:18,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (1/1) ... [2024-09-11 20:48:18,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (1/1) ... [2024-09-11 20:48:18,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (1/1) ... [2024-09-11 20:48:18,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (1/1) ... [2024-09-11 20:48:18,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (1/1) ... [2024-09-11 20:48:18,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:48:18,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:48:18,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:48:18,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:48:18,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (1/1) ... [2024-09-11 20:48:18,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:48:18,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:48:18,685 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) [2024-09-11 20:48:18,688 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 [2024-09-11 20:48:18,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:48:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:48:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:48:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:48:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:48:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:48:18,724 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:48:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:48:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:48:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:48:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:48:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:48:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:48:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:48:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:48:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:48:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:48:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:48:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:48:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:48:18,804 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:48:18,807 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:48:18,950 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:48:18,990 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-09-11 20:48:18,990 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:48:19,005 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:48:19,006 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:48:19,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:48:19 BoogieIcfgContainer [2024-09-11 20:48:19,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:48:19,007 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:48:19,007 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:48:19,007 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:48:19,008 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:48:16" (1/4) ... [2024-09-11 20:48:19,008 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2f11ae0b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:48:19, skipping insertion in model container [2024-09-11 20:48:19,008 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:48:18" (2/4) ... [2024-09-11 20:48:19,008 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2f11ae0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:48:19, skipping insertion in model container [2024-09-11 20:48:19,008 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:18" (3/4) ... [2024-09-11 20:48:19,009 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2f11ae0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:48:19, skipping insertion in model container [2024-09-11 20:48:19,009 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:48:19" (4/4) ... [2024-09-11 20:48:19,010 INFO L79 RefereeObserver]: Analyzing ICFG bresenham-ll_valuebound20.c [2024-09-11 20:48:19,013 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:48:19,013 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-11 20:48:19,013 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L32-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-11 20:48:19,014 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-11 20:48:19,014 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L32-3 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-11 20:48:19,014 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L32-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-11 20:48:19,014 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-11 20:48:19,014 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:48:19,014 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 3 loop-free subgraphs from procedure entry to error location, 2 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head [2024-09-11 20:48:19,049 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-11 20:48:19,049 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:19,050 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:19,050 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:19,051 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:19,052 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,059 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-11 20:48:19,060 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,060 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:19,060 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:19,061 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:19,063 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:19,076 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:48:19,092 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-11 20:48:19,092 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:19,092 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:19,092 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:19,092 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:19,093 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,154 INFO L101 BaseMinimizeStates]: Removed 15 edges and 6 locations by large block encoding [2024-09-11 20:48:19,154 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,154 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:19,154 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:19,154 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:19,161 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:19,167 INFO L514 InvariantChecker]: The annotation(s) from loop head L32-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:48:19,182 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:48:19,183 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:19,183 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:19,183 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:19,184 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:19,184 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,196 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:48:19,196 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,197 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:19,197 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:19,197 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:19,197 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:19,199 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:48:19,212 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-11 20:48:19,215 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:19,215 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:19,215 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:19,215 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:19,215 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,232 INFO L101 BaseMinimizeStates]: Removed 16 edges and 5 locations by large block encoding [2024-09-11 20:48:19,232 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,232 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:19,232 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:19,233 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:19,235 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:19,253 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:48:19,253 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:19,253 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:19,253 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:19,253 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:19,254 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,257 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:48:19,257 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,257 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:19,257 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:19,257 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:19,257 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:19,259 INFO L514 InvariantChecker]: The annotation(s) from loop head L32-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:48:19,268 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:48:19,268 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:19,269 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:19,269 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:19,269 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:19,269 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,271 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:48:19,272 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,272 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:19,272 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:19,272 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:19,273 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:19,274 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:48:19,282 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:48:19,282 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:19,282 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:19,282 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:19,283 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:19,283 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,284 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:48:19,284 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:19,284 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:19,285 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:19,285 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:19,285 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:19,286 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:48:19,293 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:48:19,293 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2f11ae0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:48:19, skipping insertion in model container [2024-09-11 20:48:19,294 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:48:19,297 INFO L158 Benchmark]: Toolchain (without parser) took 940.28ms. Allocated memory is still 209.7MB. Free memory was 140.4MB in the beginning and 136.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-09-11 20:48:19,297 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 113.2MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:48:19,298 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 209.7MB. Free memory is still 186.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:48:19,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.16ms. Allocated memory is still 209.7MB. Free memory was 140.2MB in the beginning and 126.4MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:48:19,299 INFO L158 Benchmark]: Boogie Preprocessor took 48.92ms. Allocated memory is still 209.7MB. Free memory was 126.4MB in the beginning and 124.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:48:19,300 INFO L158 Benchmark]: RCFGBuilder took 352.92ms. Allocated memory is still 209.7MB. Free memory was 124.3MB in the beginning and 171.8MB in the end (delta: -47.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-09-11 20:48:19,301 INFO L158 Benchmark]: Referee took 287.05ms. Allocated memory is still 209.7MB. Free memory was 171.8MB in the beginning and 136.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-09-11 20:48:19,303 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=9, X=1, x=3, y=-1, Y=1 and ends in xy=0, yx=0. Annotation is valid for all loop-free paths from loop head at line 32 to loop head at line 32. 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 check that procedure precondition always holds at line 35. 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 check that a call to reach_error is unreachable at line 15. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.10ms. Allocated memory is still 113.2MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 209.7MB. Free memory is still 186.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.16ms. Allocated memory is still 209.7MB. Free memory was 140.2MB in the beginning and 126.4MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.92ms. Allocated memory is still 209.7MB. Free memory was 126.4MB in the beginning and 124.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.92ms. Allocated memory is still 209.7MB. Free memory was 124.3MB in the beginning and 171.8MB in the end (delta: -47.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Referee took 287.05ms. Allocated memory is still 209.7MB. Free memory was 171.8MB in the beginning and 136.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:48:19,335 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE