./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.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/divbin2_unwindbound2.i ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.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 20:48:48,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:48:48,190 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:48:48,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:48:48,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:48:48,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:48:48,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:48:48,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:48:48,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:48:48,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:48:48,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:48:48,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:48:48,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:48:48,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:48:48,217 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:48:48,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:48:48,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:48:48,218 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:48:48,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:48:48,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:48:48,219 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:48:48,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:48:48,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:48:48,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:48:48,221 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:48:48,221 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:48:48,221 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:48:48,221 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:48:48,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:48:48,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:48:48,222 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:48:48,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:48:48,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:48:48,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:48:48,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:48:48,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:48:48,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:48:48,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:48:48,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:48:48,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:48:48,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:48:48,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:48:48,231 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:48:48,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:48:48,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:48:48,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:48:48,545 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:48:48,546 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:48:48,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.yml/witness-2.1.yml [2024-09-11 20:48:48,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:48:48,607 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:48:48,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-11 20:48:50,056 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:48:50,244 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:48:50,245 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-11 20:48:50,251 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/15a6ba270/723197b0cf7445e79516df694ff1d056/FLAGb1d99212f [2024-09-11 20:48:50,632 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/15a6ba270/723197b0cf7445e79516df694ff1d056 [2024-09-11 20:48:50,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:48:50,633 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:48:50,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:48:50,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:48:50,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:48:50,639 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 08:48:48" (1/2) ... [2024-09-11 20:48:50,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d6d4c4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:48:50, skipping insertion in model container [2024-09-11 20:48:50,640 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 08:48:48" (1/2) ... [2024-09-11 20:48:50,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2fb86f2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:48:50, skipping insertion in model container [2024-09-11 20:48:50,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:48:50" (2/2) ... [2024-09-11 20:48:50,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d6d4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50, skipping insertion in model container [2024-09-11 20:48:50,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:48:50" (2/2) ... [2024-09-11 20:48:50,650 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:48:50,653 INFO L1541 ArrayList]: Loop invariant at [L34-L37] (((((q == 0) && (A == r)) && (counter == 1)) || (((2 <= counter) && (q == 0)) && (A == r))) || (((((b == 1) && (q == 0)) && (counter == 0)) && (A == r)) && (B == 1))) [2024-09-11 20:48:50,653 INFO L1541 ArrayList]: Loop invariant at [L38-L47] (((((b == 1) && (q == 0)) && (A == r)) && (B == 1)) || (((2 <= counter) && (q == 0)) && (A == r))) [2024-09-11 20:48:50,653 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-11 20:48:50,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:48:50,842 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/divbin2_unwindbound2.i[951,964] [2024-09-11 20:48:50,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:48:50,883 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:48:50,922 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/divbin2_unwindbound2.i[951,964] Start Parsing Local Start Parsing Local [2024-09-11 20:48:50,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:48:50,957 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:48:50,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50 WrapperNode [2024-09-11 20:48:50,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:48:50,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:48:50,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:48:50,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:48:50,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (1/1) ... [2024-09-11 20:48:50,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (1/1) ... [2024-09-11 20:48:50,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (1/1) ... [2024-09-11 20:48:50,991 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-11 20:48:50,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (1/1) ... [2024-09-11 20:48:50,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (1/1) ... [2024-09-11 20:48:51,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (1/1) ... [2024-09-11 20:48:51,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (1/1) ... [2024-09-11 20:48:51,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (1/1) ... [2024-09-11 20:48:51,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (1/1) ... [2024-09-11 20:48:51,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:48:51,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:48:51,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:48:51,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:48:51,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (1/1) ... [2024-09-11 20:48:51,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:48:51,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:48:51,046 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 20:48:51,048 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 20:48:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:48:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:48:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:48:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:48:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:48:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:48:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:48:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:48:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-11 20:48:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-11 20:48:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:48:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:48:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-11 20:48:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:48:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:48:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:48:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:48:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:48:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:48:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:48:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:48:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:48:51,152 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:48:51,154 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:48:51,301 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:48:51,337 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-09-11 20:48:51,338 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:48:51,363 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:48:51,363 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-11 20:48:51,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:48:51 BoogieIcfgContainer [2024-09-11 20:48:51,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:48:51,364 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:48:51,364 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:48:51,365 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:48:51,368 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 08:48:48" (1/4) ... [2024-09-11 20:48:51,369 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@fb40509 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:48:51, skipping insertion in model container [2024-09-11 20:48:51,369 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:48:50" (2/4) ... [2024-09-11 20:48:51,369 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@fb40509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:48:51, skipping insertion in model container [2024-09-11 20:48:51,371 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:50" (3/4) ... [2024-09-11 20:48:51,372 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@fb40509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:48:51, skipping insertion in model container [2024-09-11 20:48:51,372 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:48:51" (4/4) ... [2024-09-11 20:48:51,373 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound2.i [2024-09-11 20:48:51,377 INFO L112 InvariantChecker]: Found 2 loops. [2024-09-11 20:48:51,378 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-11 20:48:51,378 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 20:48:51,378 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:48:51,379 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 20:48:51,379 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 20:48:51,379 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-11 20:48:51,379 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-11 20:48:51,379 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-11 20:48:51,379 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from loop head to error location, 3 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:48:51,427 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:48:51,429 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:51,429 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:51,429 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:51,430 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:51,432 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:51,456 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:48:51,457 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:51,457 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:51,457 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:51,458 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:51,458 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:55,479 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:48:55,507 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-11 20:48:55,507 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:55,507 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:55,507 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:55,507 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:55,507 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,515 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-11 20:48:55,516 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,517 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:55,517 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:55,517 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:55,517 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:55,555 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-11 20:48:55,558 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:55,559 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:55,559 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:55,559 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:55,559 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,580 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-11 20:48:55,584 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,584 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:55,585 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:55,585 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:55,585 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:55,591 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:48:55,607 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:48:55,607 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:55,607 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:55,607 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:55,608 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:55,608 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,612 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:48:55,613 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,613 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:55,614 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:55,614 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:55,618 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:55,623 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:48:55,640 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:48:55,641 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:55,641 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:55,641 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:55,645 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:55,645 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,647 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:48:55,647 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,647 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:55,647 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:55,648 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:55,648 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:55,651 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:48:55,669 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-11 20:48:55,669 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:55,669 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:55,670 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:55,670 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:55,670 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,689 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-11 20:48:55,689 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,690 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:55,690 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:55,690 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:55,695 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:55,701 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:48:55,744 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-11 20:48:55,744 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:55,745 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:55,745 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:55,745 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:55,746 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,796 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-11 20:48:55,797 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,797 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:55,797 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:55,797 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:55,804 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:55,809 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:48:55,839 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-11 20:48:55,840 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:55,840 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:55,840 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:55,841 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:55,841 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,855 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-11 20:48:55,855 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:55,856 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:55,856 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:55,856 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:55,861 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:59,864 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:48:59,873 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:48:59,873 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@fb40509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:48:59, skipping insertion in model container [2024-09-11 20:48:59,873 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:48:59,875 INFO L158 Benchmark]: Toolchain (without parser) took 9240.73ms. Allocated memory is still 182.5MB. Free memory was 125.2MB in the beginning and 135.6MB in the end (delta: -10.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-09-11 20:48:59,875 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:48:59,876 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:48:59,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.30ms. Allocated memory is still 182.5MB. Free memory was 125.0MB in the beginning and 111.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:48:59,877 INFO L158 Benchmark]: Boogie Preprocessor took 54.71ms. Allocated memory is still 182.5MB. Free memory was 111.2MB in the beginning and 109.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:48:59,877 INFO L158 Benchmark]: RCFGBuilder took 348.80ms. Allocated memory is still 182.5MB. Free memory was 108.8MB in the beginning and 92.8MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-11 20:48:59,879 INFO L158 Benchmark]: Referee took 8509.32ms. Allocated memory is still 182.5MB. Free memory was 92.8MB in the beginning and 135.6MB in the end (delta: -42.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-09-11 20:48:59,881 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 main to loop head at line 34. One counterexample starts in counter=-1 and ends in A=0, B=0, b=0, counter=-1, q=0, r=0. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 38 to check that procedure precondition always holds at line 39. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 38 to check that procedure precondition always holds at line 38. Annotation is valid for all loop-free paths from loop head at line 34 to loop head at line 34. Annotation is valid for all loop-free paths from loop head at line 34 to loop head at line 38. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 38 to loop head at line 38. 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 20. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.30ms. Allocated memory is still 182.5MB. Free memory was 125.0MB in the beginning and 111.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.71ms. Allocated memory is still 182.5MB. Free memory was 111.2MB in the beginning and 109.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.80ms. Allocated memory is still 182.5MB. Free memory was 108.8MB in the beginning and 92.8MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Referee took 8509.32ms. Allocated memory is still 182.5MB. Free memory was 92.8MB in the beginning and 135.6MB in the end (delta: -42.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:48:59,912 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