./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/diamond_1-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/diamond_1-1.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/loop-acceleration/diamond_1-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/diamond_1-1.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 20:46:28,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:46:28,780 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:46:28,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:46:28,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:46:28,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:46:28,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:46:28,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:46:28,816 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:46:28,818 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:46:28,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:46:28,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:46:28,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:46:28,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:46:28,820 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:46:28,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:46:28,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:46:28,821 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:46:28,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:46:28,822 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:46:28,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:46:28,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:46:28,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:46:28,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:46:28,827 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:46:28,827 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:46:28,827 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:46:28,827 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:46:28,828 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:46:28,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:46:28,828 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:46:28,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:46:28,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:46:28,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:46:28,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:46:28,831 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:46:28,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:46:28,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:46:28,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:46:28,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:46:28,832 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:46:28,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:46:28,833 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:46:29,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:46:29,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:46:29,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:46:29,085 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:46:29,085 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:46:29,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/diamond_1-1.yml/witness-2.1.yml [2024-09-11 20:46:29,153 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:46:29,154 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:46:29,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/diamond_1-1.c [2024-09-11 20:46:30,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:46:30,832 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:46:30,832 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/diamond_1-1.c [2024-09-11 20:46:30,839 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/5e411b2fa/1747ccc2d8314566871352ad187515ba/FLAG4a6ae51a4 [2024-09-11 20:46:30,852 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/5e411b2fa/1747ccc2d8314566871352ad187515ba [2024-09-11 20:46:30,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:46:30,854 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:46:30,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:46:30,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:46:30,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:46:30,863 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 08:46:29" (1/2) ... [2024-09-11 20:46:30,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41130847 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:46:30, skipping insertion in model container [2024-09-11 20:46:30,867 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 08:46:29" (1/2) ... [2024-09-11 20:46:30,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d2561dd and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:46:30, skipping insertion in model container [2024-09-11 20:46:30,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:46:30" (2/2) ... [2024-09-11 20:46:30,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41130847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:30, skipping insertion in model container [2024-09-11 20:46:30,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:46:30" (2/2) ... [2024-09-11 20:46:30,875 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:46:30,876 INFO L1541 ArrayList]: Loop invariant at [L17-L23] ((((((((((((((((((((((((((((((((((((((((((((((((((((x == 36) || (64 == x)) || (92 == x)) || (x == 24)) || (94 == x)) || (x == 96)) || (x == 60)) || (2 == x)) || (x == 38)) || (x == 34)) || (x == 70)) || (x == 86)) || ((x == 100) && (y == (2 * (y / 2))))) || (16 == x)) || (76 == x)) || (56 == x)) || (x == 26)) || (52 == x)) || (32 == x)) || (x == 48)) || (x == 54)) || (22 == x)) || (98 == x)) || (46 == x)) || (x == 8)) || (40 == x)) || (68 == x)) || (x == 18)) || (84 == x)) || (14 == x)) || (x == 12)) || ((((4294967295 + x) % 4294967296) <= 98) && ((y % 2) != 0))) || (44 == x)) || (30 == x)) || (x == 50)) || (x == 58)) || (x == 78)) || (82 == x)) || (72 == x)) || (x == 0)) || (66 == x)) || (x == 10)) || (62 == x)) || (88 == x)) || (6 == x)) || (x == 80)) || (x == 74)) || (x == 4)) || (x == 90)) || (42 == x)) || (x == 28)) || (x == 20)) [2024-09-11 20:46:30,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:46:31,049 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/loop-acceleration/diamond_1-1.c[373,386] [2024-09-11 20:46:31,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:46:31,088 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:46:31,101 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/loop-acceleration/diamond_1-1.c[373,386] Start Parsing Local [2024-09-11 20:46:31,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:46:31,173 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:46:31,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31 WrapperNode [2024-09-11 20:46:31,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:46:31,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:46:31,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:46:31,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:46:31,190 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,196 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,220 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-11 20:46:31,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:46:31,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:46:31,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:46:31,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:46:31,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (1/1) ... [2024-09-11 20:46:31,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:46:31,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:46:31,268 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 20:46:31,270 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 20:46:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:46:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:46:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:46:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:46:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:46:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:46:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:46:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:46:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:46:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-11 20:46:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:46:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:46:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:46:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:46:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:46:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:46:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:46:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:46:31,376 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:46:31,379 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:46:31,596 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-09-11 20:46:31,596 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:46:31,620 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:46:31,620 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:46:31,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:46:31 BoogieIcfgContainer [2024-09-11 20:46:31,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:46:31,621 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:46:31,621 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:46:31,622 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:46:31,622 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 08:46:29" (1/4) ... [2024-09-11 20:46:31,622 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21d44ef and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:46:31, skipping insertion in model container [2024-09-11 20:46:31,623 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:46:30" (2/4) ... [2024-09-11 20:46:31,623 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21d44ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:46:31, skipping insertion in model container [2024-09-11 20:46:31,623 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:31" (3/4) ... [2024-09-11 20:46:31,625 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21d44ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:46:31, skipping insertion in model container [2024-09-11 20:46:31,625 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:46:31" (4/4) ... [2024-09-11 20:46:31,628 INFO L79 RefereeObserver]: Analyzing ICFG diamond_1-1.c [2024-09-11 20:46:31,634 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:46:31,635 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L18-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:46:31,635 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-11 20:46:31,635 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:46:31,636 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from procedure entry to error location [2024-09-11 20:46:31,694 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:46:31,696 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:31,696 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:31,697 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:31,699 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:31,701 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:31,799 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:46:31,801 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:31,801 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:31,802 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:31,802 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:31,828 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:32,283 INFO L514 InvariantChecker]: The annotation(s) from loop head L18-2 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:46:32,300 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-11 20:46:32,300 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:32,300 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:32,301 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:32,301 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:32,301 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:32,308 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-11 20:46:32,309 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:32,309 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:32,310 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:32,310 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:32,310 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:32,319 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:46:32,331 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:46:32,334 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:32,335 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:32,338 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:32,338 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:32,338 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:32,340 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:46:32,340 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:32,340 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:32,340 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:32,340 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:32,340 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:32,355 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:46:32,356 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21d44ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:46:32, skipping insertion in model container [2024-09-11 20:46:32,356 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:46:32,359 INFO L158 Benchmark]: Toolchain (without parser) took 1503.78ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 76.1MB in the end (delta: 8.3MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2024-09-11 20:46:32,360 INFO L158 Benchmark]: Witness Parser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:46:32,360 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:46:32,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.83ms. Allocated memory is still 155.2MB. Free memory was 84.1MB in the beginning and 70.9MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:46:32,362 INFO L158 Benchmark]: Boogie Preprocessor took 64.86ms. Allocated memory is still 155.2MB. Free memory was 70.9MB in the beginning and 68.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:46:32,363 INFO L158 Benchmark]: RCFGBuilder took 379.35ms. Allocated memory is still 155.2MB. Free memory was 68.8MB in the beginning and 116.7MB in the end (delta: -47.9MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-09-11 20:46:32,363 INFO L158 Benchmark]: Referee took 735.59ms. Allocated memory is still 155.2MB. Free memory was 116.7MB in the beginning and 76.1MB in the end (delta: 40.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-09-11 20:46:32,367 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 entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 8. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. Annotation is valid for all loop-free paths from loop head at line 17 to loop head at line 17. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 17. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.83ms. Allocated memory is still 155.2MB. Free memory was 84.1MB in the beginning and 70.9MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.86ms. Allocated memory is still 155.2MB. Free memory was 70.9MB in the beginning and 68.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.35ms. Allocated memory is still 155.2MB. Free memory was 68.8MB in the beginning and 116.7MB in the end (delta: -47.9MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Referee took 735.59ms. Allocated memory is still 155.2MB. Free memory was 116.7MB in the beginning and 76.1MB in the end (delta: 40.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:46:32,401 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