./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/bresenham-ll_valuebound2.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_valuebound2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/bresenham-ll_valuebound2.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 13:26:52,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:26:52,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:26:52,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:26:52,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:26:52,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:26:52,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:26:52,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:26:52,195 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:26:52,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:26:52,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:26:52,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:26:52,197 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:26:52,197 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:26:52,198 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:26:52,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:26:52,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:26:52,199 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:26:52,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:26:52,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:26:52,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:26:52,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:26:52,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:26:52,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:26:52,201 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:26:52,202 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:26:52,202 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:26:52,202 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:26:52,203 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:26:52,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:26:52,203 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:26:52,204 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:26:52,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:26:52,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:52,204 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:26:52,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:26:52,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:26:52,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:26:52,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:26:52,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:26:52,206 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:26:52,207 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:26:52,207 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:26:52,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:26:52,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:26:52,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:26:52,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:26:52,474 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:26:52,475 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:26:52,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/bresenham-ll_valuebound2.yml/witness-2.1.yml [2024-09-20 13:26:52,534 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:26:52,535 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:26:52,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c [2024-09-20 13:26:53,993 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:26:54,182 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:26:54,183 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c [2024-09-20 13:26:54,189 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/bc7a4391b/4fc23964b85c40039cc3ae212dc3ea09/FLAGdfa1e30d4 [2024-09-20 13:26:54,204 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/bc7a4391b/4fc23964b85c40039cc3ae212dc3ea09 [2024-09-20 13:26:54,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:26:54,206 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:26:54,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:54,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:26:54,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:26:54,213 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 13:26:54,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c53c2e 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 13:26:54,216 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 13:26:54,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21b5c67f 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 13:26:54,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:54" (2/2) ... [2024-09-20 13:26:54,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c53c2e 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 13:26:54,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:54" (2/2) ... [2024-09-20 13:26:54,225 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:26:54,226 INFO L1541 ArrayList]: Loop invariant at [L32-L47] (((((X <= 2) && ((((long long) Y * 2) + (2 * ((__int128) Y * x))) == (((((__int128) X * y) * 2) + X) + v))) && (0 <= Y)) && (0 <= X)) && (Y <= 2)) [2024-09-20 13:26:54,227 INFO L1541 ArrayList]: Function contract at [L13]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:26:54,227 INFO L1541 ArrayList]: Function contract at [L10]: requires null, ensures (\old(cond) != 0) [2024-09-20 13:26:54,243 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:26:54,390 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_valuebound2.c[597,610] [2024-09-20 13:26:54,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:54,417 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 13:26:54,459 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_valuebound2.c[597,610] Start Parsing Local [2024-09-20 13:26:54,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:54,500 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:26:54,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54 WrapperNode [2024-09-20 13:26:54,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:54,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:26:54,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:26:54,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:26:54,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (1/1) ... [2024-09-20 13:26:54,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (1/1) ... [2024-09-20 13:26:54,520 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (1/1) ... [2024-09-20 13:26:54,530 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 13:26:54,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (1/1) ... [2024-09-20 13:26:54,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (1/1) ... [2024-09-20 13:26:54,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (1/1) ... [2024-09-20 13:26:54,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (1/1) ... [2024-09-20 13:26:54,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (1/1) ... [2024-09-20 13:26:54,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (1/1) ... [2024-09-20 13:26:54,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:26:54,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:26:54,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:26:54,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:26:54,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (1/1) ... [2024-09-20 13:26:54,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:54,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:26:54,576 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 13:26:54,578 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 13:26:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:26:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:26:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:26:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:26:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:26:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:26:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:26:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:26:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:26:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:26:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:26:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:26:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:26:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:26:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:26:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:26:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:26:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:26:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:26:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:26:54,709 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:26:54,713 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:26:54,841 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:26:54,862 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:26:54,886 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:26:54,887 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:26:54,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:54 BoogieIcfgContainer [2024-09-20 13:26:54,887 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:26:54,888 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:26:54,888 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:26:54,892 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:26:54,892 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 13:26:54,893 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ecd41e8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:54, skipping insertion in model container [2024-09-20 13:26:54,893 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:26:54" (2/4) ... [2024-09-20 13:26:54,893 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ecd41e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:54, skipping insertion in model container [2024-09-20 13:26:54,893 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:54" (3/4) ... [2024-09-20 13:26:54,893 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ecd41e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:54, skipping insertion in model container [2024-09-20 13:26:54,893 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:54" (4/4) ... [2024-09-20 13:26:54,895 INFO L79 RefereeObserver]: Analyzing ICFG bresenham-ll_valuebound2.c [2024-09-20 13:26:54,900 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:26:54,902 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 13:26:54,902 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 13:26:54,902 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 13:26:54,903 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 13:26:54,903 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 13:26:54,903 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 13:26:54,903 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 13:26:54,903 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-20 13:26:54,966 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:26:54,967 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:54,967 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:54,968 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:54,969 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:54,970 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:54,978 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:26:54,979 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:54,979 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:54,980 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:54,981 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:54,984 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,002 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:26:55,028 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:26:55,028 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,028 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,029 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,029 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,029 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,081 INFO L101 BaseMinimizeStates]: Removed 15 edges and 6 locations by large block encoding [2024-09-20 13:26:55,081 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,081 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,081 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,082 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,090 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,107 INFO L520 InvariantChecker]: The annotation(s) from loop head L32-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:26:55,120 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-20 13:26:55,120 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,120 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,121 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,121 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,121 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,129 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-20 13:26:55,129 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,129 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,129 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,130 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,130 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,132 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:26:55,143 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 13:26:55,143 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,143 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,143 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,144 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,144 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,162 INFO L101 BaseMinimizeStates]: Removed 16 edges and 5 locations by large block encoding [2024-09-20 13:26:55,163 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,163 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,163 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,163 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,167 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,190 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:26:55,191 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,191 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,191 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,191 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,191 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,195 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:26:55,195 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,195 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,195 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,196 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,196 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,198 INFO L520 InvariantChecker]: The annotation(s) from loop head L32-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:26:55,206 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:26:55,206 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,206 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,206 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,206 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,206 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,209 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:55,209 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,210 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,210 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,210 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,211 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,214 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:26:55,225 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:26:55,225 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:55,225 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:55,226 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:55,226 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:55,226 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,227 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:26:55,227 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:55,227 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:55,228 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:55,228 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:55,228 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:55,229 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:26:55,239 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-20 13:26:55,240 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ecd41e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:26:55, skipping insertion in model container [2024-09-20 13:26:55,240 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:26:55,241 INFO L158 Benchmark]: Toolchain (without parser) took 1035.03ms. Allocated memory is still 134.2MB. Free memory was 78.6MB in the beginning and 61.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-09-20 13:26:55,242 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 134.2MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:55,242 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:55,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.00ms. Allocated memory is still 134.2MB. Free memory was 78.3MB in the beginning and 64.6MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:26:55,243 INFO L158 Benchmark]: Boogie Preprocessor took 43.27ms. Allocated memory is still 134.2MB. Free memory was 64.6MB in the beginning and 62.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:26:55,244 INFO L158 Benchmark]: RCFGBuilder took 340.64ms. Allocated memory is still 134.2MB. Free memory was 62.5MB in the beginning and 96.8MB in the end (delta: -34.3MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2024-09-20 13:26:55,244 INFO L158 Benchmark]: Referee took 352.01ms. Allocated memory is still 134.2MB. Free memory was 96.8MB in the beginning and 61.2MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-09-20 13:26:55,248 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=3, X=1, Y=1, y=2 and ends in v=3, X=1, x=3, xy=6, y=2, Y=1, yx=3. 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 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 loop head at line 32 to loop head at line 32. 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 entry of procedure assume_abort_if_not to exit of procedure assume_abort_if_not. Annotation is valid for all loop-free paths from loop head at line 32 to check that procedure precondition always holds at line 35. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.21ms. Allocated memory is still 134.2MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.00ms. Allocated memory is still 134.2MB. Free memory was 78.3MB in the beginning and 64.6MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.27ms. Allocated memory is still 134.2MB. Free memory was 64.6MB in the beginning and 62.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 340.64ms. Allocated memory is still 134.2MB. Free memory was 62.5MB in the beginning and 96.8MB in the end (delta: -34.3MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Referee took 352.01ms. Allocated memory is still 134.2MB. Free memory was 96.8MB in the beginning and 61.2MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-20 13:26:55,286 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