./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 [2024-09-12 16:49:45,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 16:49:45,964 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-12 16:49:45,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 16:49:45,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 16:49:45,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 16:49:45,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 16:49:45,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 16:49:45,996 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 16:49:45,997 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 16:49:45,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 16:49:45,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 16:49:45,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 16:49:45,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 16:49:45,998 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 16:49:45,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 16:49:45,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 16:49:45,999 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 16:49:45,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 16:49:46,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 16:49:46,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 16:49:46,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 16:49:46,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 16:49:46,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 16:49:46,005 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 16:49:46,005 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 16:49:46,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 16:49:46,005 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 16:49:46,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 16:49:46,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 16:49:46,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 16:49:46,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 16:49:46,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:49:46,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 16:49:46,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 16:49:46,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 16:49:46,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 16:49:46,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 16:49:46,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 16:49:46,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 16:49:46,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 16:49:46,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 16:49:46,009 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-12 16:49:46,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 16:49:46,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 16:49:46,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 16:49:46,252 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 16:49:46,253 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 16:49:46,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-12 16:49:47,720 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 16:49:47,853 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 16:49:47,859 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-12 16:49:47,870 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f9788cccc/d22c4904d9734d65bfd53ac5333015f7/FLAGe785da55d [2024-09-12 16:49:47,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f9788cccc/d22c4904d9734d65bfd53ac5333015f7 [2024-09-12 16:49:47,885 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 16:49:47,886 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 16:49:47,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.yml/witness-2.1.yml [2024-09-12 16:49:47,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 16:49:47,926 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 16:49:47,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 16:49:47,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 16:49:47,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 16:49:47,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:49:47" (1/2) ... [2024-09-12 16:49:47,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d6425f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:47, skipping insertion in model container [2024-09-12 16:49:47,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:49:47" (1/2) ... [2024-09-12 16:49:47,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1765dd61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:47, skipping insertion in model container [2024-09-12 16:49:47,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:49:47" (2/2) ... [2024-09-12 16:49:47,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d6425f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:47, skipping insertion in model container [2024-09-12 16:49:47,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:49:47" (2/2) ... [2024-09-12 16:49:47,946 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 16:49:47,949 INFO L1541 ArrayList]: Loop invariant at [L38-L47] ((\old(counter) == 0) && ((((2 <= counter) && (A == r)) && (q == 0)) || ((((A == r) && (1 <= counter)) && (B == b)) && (q == 0)))) [2024-09-12 16:49:47,950 INFO L1541 ArrayList]: Loop invariant at [L34-L37] ((\old(counter) == 0) && (((((A == r) && (counter == 0)) && (B == b)) && (q == 0)) || (((A == r) && (1 <= counter)) && (q == 0)))) [2024-09-12 16:49:47,950 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-12 16:49:47,950 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-12 16:49:47,963 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 16:49:48,131 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] [2024-09-12 16:49:48,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:49:48,156 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-12 16:49:48,183 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 Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-12 16:49:48,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:49:48,205 INFO L204 MainTranslator]: Completed translation [2024-09-12 16:49:48,205 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48 WrapperNode [2024-09-12 16:49:48,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 16:49:48,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 16:49:48,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 16:49:48,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 16:49:48,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (1/1) ... [2024-09-12 16:49:48,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (1/1) ... [2024-09-12 16:49:48,223 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (1/1) ... [2024-09-12 16:49:48,235 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 [2024-09-12 16:49:48,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (1/1) ... [2024-09-12 16:49:48,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (1/1) ... [2024-09-12 16:49:48,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (1/1) ... [2024-09-12 16:49:48,247 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (1/1) ... [2024-09-12 16:49:48,252 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (1/1) ... [2024-09-12 16:49:48,253 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (1/1) ... [2024-09-12 16:49:48,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 16:49:48,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 16:49:48,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 16:49:48,257 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 16:49:48,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (1/1) ... [2024-09-12 16:49:48,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:49:48,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 16:49:48,297 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) [2024-09-12 16:49:48,302 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 [2024-09-12 16:49:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 16:49:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 16:49:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 16:49:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 16:49:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 16:49:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 16:49:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 16:49:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 16:49:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-12 16:49:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-12 16:49:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 16:49:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 16:49:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-12 16:49:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 16:49:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 16:49:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 16:49:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 16:49:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-12 16:49:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 16:49:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-12 16:49:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-12 16:49:48,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 16:49:48,427 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 16:49:48,431 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 16:49:48,493 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 16:49:48,612 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 16:49:48,643 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-09-12 16:49:48,643 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 16:49:48,659 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 16:49:48,660 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 16:49:48,660 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:49:48 BoogieIcfgContainer [2024-09-12 16:49:48,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 16:49:48,661 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 16:49:48,661 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 16:49:48,661 INFO L274 PluginConnector]: Referee initialized [2024-09-12 16:49:48,662 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 04:49:47" (1/4) ... [2024-09-12 16:49:48,662 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6b4e599d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 04:49:48, skipping insertion in model container [2024-09-12 16:49:48,662 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:49:47" (2/4) ... [2024-09-12 16:49:48,662 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6b4e599d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:49:48, skipping insertion in model container [2024-09-12 16:49:48,662 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:48" (3/4) ... [2024-09-12 16:49:48,663 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6b4e599d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:49:48, skipping insertion in model container [2024-09-12 16:49:48,663 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:49:48" (4/4) ... [2024-09-12 16:49:48,664 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound2.i [2024-09-12 16:49:48,670 INFO L112 InvariantChecker]: Found 2 loops. [2024-09-12 16:49:48,671 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr4ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-12 16:49:48,671 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-12 16:49:48,671 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-12 16:49:48,672 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-12 16:49:48,672 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-12 16:49:48,672 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-12 16:49:48,672 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-12 16:49:48,672 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-12 16:49:48,672 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-12 16:49:48,672 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-12 16:49:48,673 INFO L130 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 3 loop-free subgraphs from loop head to loop head [2024-09-12 16:49:48,733 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-12 16:49:48,734 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:48,734 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:48,735 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:48,736 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:48,737 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:48,771 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-12 16:49:48,772 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:48,772 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:48,772 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:48,772 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:48,775 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:48,789 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr4ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 16:49:48,812 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-12 16:49:48,813 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:48,813 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:48,813 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:48,813 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:48,813 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:48,821 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-12 16:49:48,822 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:48,822 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:48,822 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:48,822 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:48,822 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:52,831 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-12 16:49:52,845 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-12 16:49:52,845 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:52,845 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:52,846 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:52,846 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:52,846 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,848 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-12 16:49:52,848 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,848 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:52,848 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:52,848 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:52,848 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:52,858 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:49:52,875 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-12 16:49:52,875 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:52,876 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:52,876 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:52,876 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:52,876 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,884 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-12 16:49:52,885 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,885 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:52,885 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:52,885 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:52,885 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:52,888 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:49:52,896 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 16:49:52,896 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:52,896 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:52,897 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:52,897 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:52,897 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,897 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 16:49:52,898 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,898 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:52,898 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:52,898 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:52,898 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:52,899 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 16:49:52,908 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-12 16:49:52,908 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:52,908 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:52,908 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:52,908 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:52,908 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,910 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-12 16:49:52,910 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,911 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:52,911 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:52,911 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:52,911 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:52,912 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 16:49:52,920 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 16:49:52,920 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:52,920 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:52,920 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:52,920 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:52,920 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,921 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 16:49:52,921 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,922 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:52,922 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:52,922 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:52,922 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:52,923 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-12 16:49:52,930 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-12 16:49:52,931 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:52,931 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:52,931 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:52,931 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:52,931 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,941 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-12 16:49:52,941 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,942 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:52,942 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:52,942 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:52,944 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:52,946 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:49:52,954 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-12 16:49:52,955 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:52,955 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:52,955 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:52,955 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:52,955 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,975 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-12 16:49:52,976 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:52,976 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:52,976 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:52,976 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:52,981 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:52,984 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:49:52,991 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-12 16:49:52,992 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:52,992 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:52,992 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:52,992 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:52,992 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:53,002 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-12 16:49:53,002 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:53,003 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:53,003 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:53,003 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:53,005 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:57,009 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-12 16:49:57,014 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness [2024-09-12 16:49:57,015 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6b4e599d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 12.09 04:49:57, skipping insertion in model container [2024-09-12 16:49:57,015 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-12 16:49:57,016 INFO L158 Benchmark]: Toolchain (without parser) took 9088.96ms. Allocated memory was 159.4MB in the beginning and 228.6MB in the end (delta: 69.2MB). Free memory was 83.5MB in the beginning and 133.0MB in the end (delta: -49.5MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2024-09-12 16:49:57,016 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:49:57,017 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:49:57,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.05ms. Allocated memory is still 159.4MB. Free memory was 83.3MB in the beginning and 69.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-12 16:49:57,017 INFO L158 Benchmark]: Boogie Preprocessor took 49.66ms. Allocated memory is still 159.4MB. Free memory was 69.3MB in the beginning and 67.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 16:49:57,018 INFO L158 Benchmark]: RCFGBuilder took 403.59ms. Allocated memory was 159.4MB in the beginning and 228.6MB in the end (delta: 69.2MB). Free memory was 67.2MB in the beginning and 189.1MB in the end (delta: -121.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2024-09-12 16:49:57,018 INFO L158 Benchmark]: Referee took 8354.07ms. Allocated memory is still 228.6MB. Free memory was 189.1MB in the beginning and 133.0MB in the end (delta: 56.1MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-09-12 16:49:57,020 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Insufficient resources for checking whether annotation is a valid proof of correctness Insufficient resources for checking whether annotation is a valid proof of correctness 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 entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. 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 loop head at line 38 to exit of procedure main. 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 entry of procedure main to loop head at line 34. 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 ULTIMATE.start to check that procedure precondition always holds at line -1. 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: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.05ms. Allocated memory is still 159.4MB. Free memory was 83.3MB in the beginning and 69.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.66ms. Allocated memory is still 159.4MB. Free memory was 69.3MB in the beginning and 67.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.59ms. Allocated memory was 159.4MB in the beginning and 228.6MB in the end (delta: 69.2MB). Free memory was 67.2MB in the beginning and 189.1MB in the end (delta: -121.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Referee took 8354.07ms. Allocated memory is still 228.6MB. Free memory was 189.1MB in the beginning and 133.0MB in the end (delta: 56.1MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 16:49:57,038 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_Bitvector.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 [2024-09-12 16:49:59,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 16:49:59,273 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-12 16:49:59,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 16:49:59,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 16:49:59,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 16:49:59,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 16:49:59,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 16:49:59,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 16:49:59,308 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 16:49:59,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 16:49:59,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 16:49:59,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 16:49:59,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 16:49:59,312 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 16:49:59,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 16:49:59,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 16:49:59,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 16:49:59,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 16:49:59,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 16:49:59,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 16:49:59,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 16:49:59,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 16:49:59,314 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-12 16:49:59,315 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-12 16:49:59,315 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 16:49:59,315 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-12 16:49:59,317 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 16:49:59,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 16:49:59,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 16:49:59,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 16:49:59,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 16:49:59,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 16:49:59,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 16:49:59,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:49:59,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 16:49:59,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 16:49:59,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 16:49:59,319 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-12 16:49:59,319 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-12 16:49:59,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 16:49:59,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 16:49:59,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 16:49:59,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 16:49:59,320 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-12 16:49:59,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-12 16:49:59,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 16:49:59,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 16:49:59,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 16:49:59,606 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 16:49:59,607 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 16:49:59,607 INFO L431 ainManager$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 [2024-09-12 16:49:59,653 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 16:49:59,653 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 16:49:59,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-12 16:50:01,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 16:50:01,331 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 16:50:01,331 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-12 16:50:01,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/1698b84f2/7cfb89de7e1f4a6db778f52753bf21b4/FLAGb97d28293 [2024-09-12 16:50:01,353 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/1698b84f2/7cfb89de7e1f4a6db778f52753bf21b4 [2024-09-12 16:50:01,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 16:50:01,354 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 16:50:01,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 16:50:01,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 16:50:01,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 16:50:01,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:49:59" (1/2) ... [2024-09-12 16:50:01,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4135e782 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:50:01, skipping insertion in model container [2024-09-12 16:50:01,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:49:59" (1/2) ... [2024-09-12 16:50:01,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6094d36a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:50:01, skipping insertion in model container [2024-09-12 16:50:01,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:50:01" (2/2) ... [2024-09-12 16:50:01,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4135e782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01, skipping insertion in model container [2024-09-12 16:50:01,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:50:01" (2/2) ... [2024-09-12 16:50:01,378 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 16:50:01,380 INFO L1541 ArrayList]: Loop invariant at [L34-L37] ((\old(counter) == 0) && (((((A == r) && (counter == 0)) && (B == b)) && (q == 0)) || (((A == r) && (1 <= counter)) && (q == 0)))) [2024-09-12 16:50:01,380 INFO L1541 ArrayList]: Loop invariant at [L38-L47] ((\old(counter) == 0) && ((((2 <= counter) && (A == r)) && (q == 0)) || ((((A == r) && (1 <= counter)) && (B == b)) && (q == 0)))) [2024-09-12 16:50:01,380 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-12 16:50:01,380 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-12 16:50:01,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 16:50:01,516 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] [2024-09-12 16:50:01,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:50:01,547 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-12 16:50:01,588 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 Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-12 16:50:01,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:50:01,615 INFO L204 MainTranslator]: Completed translation [2024-09-12 16:50:01,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01 WrapperNode [2024-09-12 16:50:01,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 16:50:01,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 16:50:01,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 16:50:01,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 16:50:01,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (1/1) ... [2024-09-12 16:50:01,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (1/1) ... [2024-09-12 16:50:01,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (1/1) ... [2024-09-12 16:50:01,639 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 [2024-09-12 16:50:01,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (1/1) ... [2024-09-12 16:50:01,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (1/1) ... [2024-09-12 16:50:01,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (1/1) ... [2024-09-12 16:50:01,655 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (1/1) ... [2024-09-12 16:50:01,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (1/1) ... [2024-09-12 16:50:01,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (1/1) ... [2024-09-12 16:50:01,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 16:50:01,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 16:50:01,663 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 16:50:01,663 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 16:50:01,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (1/1) ... [2024-09-12 16:50:01,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:50:01,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 16:50:01,690 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) [2024-09-12 16:50:01,692 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 [2024-09-12 16:50:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 16:50:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 16:50:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 16:50:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 16:50:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 16:50:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 16:50:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 16:50:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 16:50:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-12 16:50:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-12 16:50:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 16:50:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 16:50:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-12 16:50:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 16:50:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 16:50:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 16:50:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 16:50:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-12 16:50:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 16:50:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-12 16:50:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-12 16:50:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 16:50:01,794 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 16:50:01,795 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 16:50:01,832 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 16:50:01,974 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 16:50:01,998 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-09-12 16:50:01,999 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 16:50:02,029 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 16:50:02,029 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 16:50:02,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:50:02 BoogieIcfgContainer [2024-09-12 16:50:02,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 16:50:02,030 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 16:50:02,030 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 16:50:02,031 INFO L274 PluginConnector]: Referee initialized [2024-09-12 16:50:02,031 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:49:59" (1/4) ... [2024-09-12 16:50:02,031 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7679ede3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:50:02, skipping insertion in model container [2024-09-12 16:50:02,031 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 04:50:01" (2/4) ... [2024-09-12 16:50:02,032 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7679ede3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 04:50:02, skipping insertion in model container [2024-09-12 16:50:02,032 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:50:01" (3/4) ... [2024-09-12 16:50:02,032 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7679ede3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 04:50:02, skipping insertion in model container [2024-09-12 16:50:02,032 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:50:02" (4/4) ... [2024-09-12 16:50:02,033 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound2.i [2024-09-12 16:50:02,037 INFO L112 InvariantChecker]: Found 2 loops. [2024-09-12 16:50:02,037 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr4ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-12 16:50:02,037 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-12 16:50:02,037 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-12 16:50:02,038 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-12 16:50:02,038 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-12 16:50:02,038 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-12 16:50:02,038 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-12 16:50:02,039 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-12 16:50:02,039 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-12 16:50:02,039 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-12 16:50:02,039 INFO L130 InvariantChecker]: Will check 3 loop-free subgraphs from loop head to error location, 3 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head [2024-09-12 16:50:02,084 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-12 16:50:02,085 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:50:02,085 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:50:02,086 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:50:02,087 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:50:02,088 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,150 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-12 16:50:02,151 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,151 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:50:02,151 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:50:02,152 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:50:02,156 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:50:02,169 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr4ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 16:50:02,185 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-12 16:50:02,188 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:50:02,188 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:50:02,189 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:50:02,189 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:50:02,189 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,198 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-12 16:50:02,202 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,203 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:50:02,203 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:50:02,203 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:50:02,203 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:50:02,223 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 16:50:02,239 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-12 16:50:02,240 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:50:02,240 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:50:02,240 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:50:02,240 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:50:02,241 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,243 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-12 16:50:02,244 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,244 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:50:02,244 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:50:02,244 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:50:02,244 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:50:02,249 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:50:02,258 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-12 16:50:02,259 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:50:02,259 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:50:02,259 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:50:02,259 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:50:02,259 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,265 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-12 16:50:02,266 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,266 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:50:02,266 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:50:02,266 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:50:02,266 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:50:02,269 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:50:02,289 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 16:50:02,293 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:50:02,293 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:50:02,293 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:50:02,293 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:50:02,293 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,294 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 16:50:02,295 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,295 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:50:02,295 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:50:02,295 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:50:02,295 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:50:02,300 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 16:50:02,310 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-12 16:50:02,311 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:50:02,312 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:50:02,312 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:50:02,312 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:50:02,312 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,314 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-12 16:50:02,314 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,314 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:50:02,315 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:50:02,315 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:50:02,317 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:50:02,318 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 16:50:02,327 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 16:50:02,327 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:50:02,327 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:50:02,328 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:50:02,328 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:50:02,328 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,329 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 16:50:02,329 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,329 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:50:02,330 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:50:02,330 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:50:02,330 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:50:02,332 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-12 16:50:02,341 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-12 16:50:02,341 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:50:02,341 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:50:02,342 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:50:02,342 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:50:02,342 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,353 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-12 16:50:02,354 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,355 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:50:02,355 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:50:02,355 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:50:02,358 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:50:02,384 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-12 16:50:02,384 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:50:02,385 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:50:02,385 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:50:02,385 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:50:02,385 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,407 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-12 16:50:02,407 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,408 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:50:02,408 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:50:02,408 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:50:02,413 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:50:02,425 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:50:02,436 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-12 16:50:02,437 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:50:02,437 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:50:02,437 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:50:02,438 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:50:02,438 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,446 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-12 16:50:02,446 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:50:02,446 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:50:02,446 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:50:02,447 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:50:02,449 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:50:02,463 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 16:50:02,471 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-12 16:50:02,472 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7679ede3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 12.09 04:50:02, skipping insertion in model container [2024-09-12 16:50:02,472 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-12 16:50:02,474 INFO L158 Benchmark]: Toolchain (without parser) took 1118.16ms. Allocated memory was 71.3MB in the beginning and 111.1MB in the end (delta: 39.8MB). Free memory was 43.3MB in the beginning and 75.4MB in the end (delta: -32.1MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-09-12 16:50:02,474 INFO L158 Benchmark]: Witness Parser took 0.73ms. Allocated memory is still 44.0MB. Free memory was 25.3MB in the beginning and 25.3MB in the end (delta: 60.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:50:02,475 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 44.0MB. Free memory is still 23.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:50:02,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.40ms. Allocated memory is still 71.3MB. Free memory was 43.1MB in the beginning and 49.1MB in the end (delta: -6.1MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-09-12 16:50:02,476 INFO L158 Benchmark]: Boogie Preprocessor took 45.78ms. Allocated memory is still 71.3MB. Free memory was 48.9MB in the beginning and 46.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 16:50:02,477 INFO L158 Benchmark]: RCFGBuilder took 366.82ms. Allocated memory was 71.3MB in the beginning and 111.1MB in the end (delta: 39.8MB). Free memory was 46.7MB in the beginning and 89.3MB in the end (delta: -42.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-09-12 16:50:02,477 INFO L158 Benchmark]: Referee took 441.83ms. Allocated memory is still 111.1MB. Free memory was 89.3MB in the beginning and 75.4MB in the end (delta: 13.9MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2024-09-12 16:50:02,479 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 34 to loop head at line 38. One counterexample starts in \old(counter)=0, A=0, B=0, b=0, counter=2147483647, q=0, r=0 and ends in \old(counter)=0, counter=-2147483648. Annotation is valid for all loop-free paths from loop head at line 38 to check that procedure precondition always holds at line 39. 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 check that procedure precondition always holds at line 38. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 34. Annotation is valid for all loop-free paths from loop head at line 38 to exit of procedure main. 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 loop head at line 34 to loop head at line 34. 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. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.73ms. Allocated memory is still 44.0MB. Free memory was 25.3MB in the beginning and 25.3MB in the end (delta: 60.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 44.0MB. Free memory is still 23.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.40ms. Allocated memory is still 71.3MB. Free memory was 43.1MB in the beginning and 49.1MB in the end (delta: -6.1MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.78ms. Allocated memory is still 71.3MB. Free memory was 48.9MB in the beginning and 46.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 366.82ms. Allocated memory was 71.3MB in the beginning and 111.1MB in the end (delta: 39.8MB). Free memory was 46.7MB in the beginning and 89.3MB in the end (delta: -42.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Referee took 441.83ms. Allocated memory is still 111.1MB. Free memory was 89.3MB in the beginning and 75.4MB in the end (delta: 13.9MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 16:50:02,507 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