./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 fb1cb0b9 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:47:18,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:47:18,724 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:47:18,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:47:18,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:47:18,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:47:18,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:47:18,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:47:18,749 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:47:18,750 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:47:18,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:47:18,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:47:18,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:47:18,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:47:18,752 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:47:18,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:47:18,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:47:18,754 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:47:18,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:47:18,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:47:18,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:47:18,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:47:18,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:47:18,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:47:18,756 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:47:18,756 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:47:18,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:47:18,756 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:47:18,757 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:47:18,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:47:18,757 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:47:18,757 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:47:18,758 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:47:18,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:47:18,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:47:18,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:47:18,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:47:18,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:47:18,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:47:18,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:47:18,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:47:18,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:47:18,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:47:18,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:47:19,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:47:19,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:47:19,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:47:19,054 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:47:19,056 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:47:19,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-25 11:47:20,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:47:20,679 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:47:20,680 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-25 11:47:20,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/66d4c519f/8436d5b53b55410d852a61e356862ab8/FLAG365d1da8f [2024-09-25 11:47:20,703 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/66d4c519f/8436d5b53b55410d852a61e356862ab8 [2024-09-25 11:47:20,705 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:47:20,706 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:47:20,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.yml/witness-2.1.yml [2024-09-25 11:47:20,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:47:20,816 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:47:20,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:47:20,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:47:20,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:47:20,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:47:20" (1/2) ... [2024-09-25 11:47:20,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b0d9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:20, skipping insertion in model container [2024-09-25 11:47:20,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:47:20" (1/2) ... [2024-09-25 11:47:20,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13bef211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:20, skipping insertion in model container [2024-09-25 11:47:20,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:47:20" (2/2) ... [2024-09-25 11:47:20,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b0d9c5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:47:20, skipping insertion in model container [2024-09-25 11:47:20,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:47:20" (2/2) ... [2024-09-25 11:47:20,845 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:47:20,846 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)))) [2024-09-25 11:47:20,846 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)))) [2024-09-25 11:47:20,849 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= cond), ensures ((counter == \old(counter)) && (1 <= cond)) [2024-09-25 11:47:20,850 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-25 11:47:20,869 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:47:21,014 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i[951,964] [2024-09-25 11:47:21,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:47:21,040 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 11:47:21,078 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i[951,964] Start Parsing Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-25 11:47:21,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:47:21,114 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:47:21,115 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:47:21 WrapperNode [2024-09-25 11:47:21,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:47:21,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:47:21,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:47:21,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:47:21,130 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 25.09 11:47:21" (1/1) ... [2024-09-25 11:47:21,130 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 25.09 11:47:21" (1/1) ... [2024-09-25 11:47:21,140 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 25.09 11:47:21" (1/1) ... [2024-09-25 11:47:21,151 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 [2024-09-25 11:47:21,152 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 25.09 11:47:21" (1/1) ... [2024-09-25 11:47:21,152 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 25.09 11:47:21" (1/1) ... [2024-09-25 11:47:21,155 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 25.09 11:47:21" (1/1) ... [2024-09-25 11:47:21,159 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 25.09 11:47:21" (1/1) ... [2024-09-25 11:47:21,160 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 25.09 11:47:21" (1/1) ... [2024-09-25 11:47:21,161 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 25.09 11:47:21" (1/1) ... [2024-09-25 11:47:21,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:47:21,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:47:21,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:47:21,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:47:21,164 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 25.09 11:47:21" (1/1) ... [2024-09-25 11:47:21,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:47:21,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:47:21,190 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) [2024-09-25 11:47:21,196 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 [2024-09-25 11:47:21,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:47:21,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:47:21,234 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:47:21,235 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:47:21,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-25 11:47:21,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:47:21,235 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:47:21,235 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:47:21,235 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-25 11:47:21,235 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-25 11:47:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:47:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:47:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-25 11:47:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:47:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:47:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:47:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:47:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:47:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:47:21,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:47:21,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:47:21,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:47:21,305 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:47:21,307 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:47:21,360 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 11:47:21,482 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 11:47:21,493 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:47:21,516 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:47:21,517 INFO L317 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-25 11:47:21,517 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:47:21 BoogieIcfgContainer [2024-09-25 11:47:21,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:47:21,518 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:47:21,518 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:47:21,518 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:47:21,519 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:47:20" (1/4) ... [2024-09-25 11:47:21,519 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@32f44e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:47:21, skipping insertion in model container [2024-09-25 11:47:21,519 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:47:20" (2/4) ... [2024-09-25 11:47:21,519 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@32f44e44 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:47:21, skipping insertion in model container [2024-09-25 11:47:21,519 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 25.09 11:47:21" (3/4) ... [2024-09-25 11:47:21,520 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@32f44e44 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:47:21, skipping insertion in model container [2024-09-25 11:47:21,520 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:47:21" (4/4) ... [2024-09-25 11:47:21,521 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound2.i [2024-09-25 11:47:21,525 INFO L113 InvariantChecker]: Found 2 loops. [2024-09-25 11:47:21,525 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr4ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-25 11:47:21,526 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-25 11:47:21,526 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-25 11:47:21,526 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:47:21,526 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-25 11:47:21,527 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-25 11:47:21,527 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-25 11:47:21,527 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-25 11:47:21,527 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-25 11:47:21,528 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-25 11:47:21,529 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from loop head to error location, 3 loop-free subgraphs from loop head to loop head, 3 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-25 11:47:21,591 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-25 11:47:21,592 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:21,593 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:21,593 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:21,594 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:21,596 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:21,657 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-25 11:47:21,658 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:21,659 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:21,659 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:21,659 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:21,662 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:21,675 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr4ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:47:21,701 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-25 11:47:21,701 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:21,705 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:21,705 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:21,705 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:21,705 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:21,713 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-25 11:47:21,715 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:21,715 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:21,715 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:21,715 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:21,716 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:25,719 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-25 11:47:25,733 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-25 11:47:25,733 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:25,733 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:25,733 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:25,734 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:25,734 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,736 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-25 11:47:25,736 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,736 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:25,736 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:25,736 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:25,737 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:25,742 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:47:25,753 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-25 11:47:25,754 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:25,754 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:25,754 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:25,754 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:25,754 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,763 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-25 11:47:25,764 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,764 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:25,764 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:25,764 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:25,764 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:25,767 INFO L520 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:47:25,779 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:47:25,779 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:25,780 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:25,780 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:25,780 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:25,780 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,781 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:47:25,781 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,781 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:25,782 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:25,782 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:25,782 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:25,783 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:47:25,793 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:47:25,794 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:25,794 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:25,794 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:25,794 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:25,795 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,797 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 11:47:25,797 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,797 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:25,798 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:25,798 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:25,799 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:25,801 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:47:25,815 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:47:25,816 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:25,816 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:25,816 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:25,816 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:25,816 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,821 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:47:25,821 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,821 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:25,822 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:25,822 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:25,822 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:25,823 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:47:25,857 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-25 11:47:25,858 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:25,858 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:25,858 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:25,858 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:25,858 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,888 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-25 11:47:25,889 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,889 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:25,889 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:25,890 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:25,892 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:25,895 INFO L520 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:47:25,904 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-25 11:47:25,905 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:25,905 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:25,905 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:25,905 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:25,906 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,924 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-25 11:47:25,924 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,924 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:25,925 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:25,925 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:25,930 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:25,933 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:47:25,942 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-25 11:47:25,942 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:25,942 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:25,943 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:25,943 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:25,943 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,954 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-25 11:47:25,954 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:25,955 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:25,955 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:25,955 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:25,958 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:29,960 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-25 11:47:29,965 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-25 11:47:29,966 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@32f44e44 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:47:29, skipping insertion in model container [2024-09-25 11:47:29,966 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:47:29,968 INFO L158 Benchmark]: Toolchain (without parser) took 9151.02ms. Allocated memory is still 140.5MB. Free memory was 112.8MB in the beginning and 88.9MB in the end (delta: 23.9MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-09-25 11:47:29,969 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:47:29,969 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 140.5MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:47:29,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.42ms. Allocated memory is still 140.5MB. Free memory was 112.3MB in the beginning and 98.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 11:47:29,970 INFO L158 Benchmark]: Boogie Preprocessor took 45.97ms. Allocated memory is still 140.5MB. Free memory was 98.6MB in the beginning and 96.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:47:29,971 INFO L158 Benchmark]: RCFGBuilder took 354.15ms. Allocated memory is still 140.5MB. Free memory was 96.6MB in the beginning and 81.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:47:29,971 INFO L158 Benchmark]: Referee took 8448.22ms. Allocated memory is still 140.5MB. Free memory was 81.9MB in the beginning and 88.9MB in the end (delta: -7.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-09-25 11:47:29,974 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 38. 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. 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 exit of procedure __VERIFIER_assert. 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 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 38. 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 main to loop head at line 34. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 140.5MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.42ms. Allocated memory is still 140.5MB. Free memory was 112.3MB in the beginning and 98.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.97ms. Allocated memory is still 140.5MB. Free memory was 98.6MB in the beginning and 96.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.15ms. Allocated memory is still 140.5MB. Free memory was 96.6MB in the beginning and 81.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 8448.22ms. Allocated memory is still 140.5MB. Free memory was 81.9MB in the beginning and 88.9MB in the end (delta: -7.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 11:47:29,993 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/11.0.12-open/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-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:47:32,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:47:32,314 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 11:47:32,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:47:32,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:47:32,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:47:32,351 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:47:32,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:47:32,353 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:47:32,356 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:47:32,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:47:32,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:47:32,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:47:32,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:47:32,359 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:47:32,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:47:32,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:47:32,363 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:47:32,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:47:32,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:47:32,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:47:32,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:47:32,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:47:32,364 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 11:47:32,365 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 11:47:32,365 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:47:32,365 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 11:47:32,366 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:47:32,366 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:47:32,366 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:47:32,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:47:32,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:47:32,368 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:47:32,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:47:32,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:47:32,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:47:32,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:47:32,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:47:32,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:47:32,377 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 11:47:32,377 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 11:47:32,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:47:32,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:47:32,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:47:32,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:47:32,379 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 11:47:32,379 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:47:32,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:47:32,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:47:32,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:47:32,741 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:47:32,742 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:47:32,744 INFO L431 ainManager$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 [2024-09-25 11:47:32,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:47:32,795 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:47:32,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-25 11:47:34,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:47:34,537 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:47:34,537 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-25 11:47:34,545 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/cecfc6b73/7582d532ac10409895af48335c5b737d/FLAGd391fb167 [2024-09-25 11:47:34,926 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/cecfc6b73/7582d532ac10409895af48335c5b737d [2024-09-25 11:47:34,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:47:34,928 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:47:34,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:47:34,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:47:34,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:47:34,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:47:32" (1/2) ... [2024-09-25 11:47:34,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a5d68f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:47:34, skipping insertion in model container [2024-09-25 11:47:34,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:47:32" (1/2) ... [2024-09-25 11:47:34,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@d406f13 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:47:34, skipping insertion in model container [2024-09-25 11:47:34,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:47:34" (2/2) ... [2024-09-25 11:47:34,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a5d68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:34, skipping insertion in model container [2024-09-25 11:47:34,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:47:34" (2/2) ... [2024-09-25 11:47:34,952 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:47:34,953 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)))) [2024-09-25 11:47:34,953 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)))) [2024-09-25 11:47:34,953 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= cond), ensures ((counter == \old(counter)) && (1 <= cond)) [2024-09-25 11:47:34,953 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-25 11:47:34,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:47:35,136 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i[951,964] [2024-09-25 11:47:35,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:47:35,169 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 11:47:35,206 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i[951,964] Start Parsing Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-25 11:47:35,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:47:35,241 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:47:35,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35 WrapperNode [2024-09-25 11:47:35,242 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:47:35,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:47:35,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:47:35,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:47:35,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (1/1) ... [2024-09-25 11:47:35,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (1/1) ... [2024-09-25 11:47:35,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (1/1) ... [2024-09-25 11:47:35,274 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 [2024-09-25 11:47:35,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (1/1) ... [2024-09-25 11:47:35,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (1/1) ... [2024-09-25 11:47:35,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (1/1) ... [2024-09-25 11:47:35,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (1/1) ... [2024-09-25 11:47:35,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (1/1) ... [2024-09-25 11:47:35,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (1/1) ... [2024-09-25 11:47:35,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:47:35,293 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:47:35,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:47:35,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:47:35,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (1/1) ... [2024-09-25 11:47:35,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:47:35,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:47:35,326 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) [2024-09-25 11:47:35,329 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 [2024-09-25 11:47:35,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:47:35,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:47:35,370 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:47:35,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:47:35,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-25 11:47:35,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:47:35,370 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:47:35,370 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:47:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-25 11:47:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-25 11:47:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:47:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:47:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-25 11:47:35,371 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:47:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:47:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:47:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:47:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-25 11:47:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:47:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-25 11:47:35,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-25 11:47:35,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:47:35,458 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:47:35,460 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:47:35,508 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 11:47:35,728 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 11:47:35,749 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:47:35,771 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:47:35,771 INFO L317 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-25 11:47:35,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:47:35 BoogieIcfgContainer [2024-09-25 11:47:35,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:47:35,772 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:47:35,773 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:47:35,773 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:47:35,773 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:47:32" (1/4) ... [2024-09-25 11:47:35,774 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72d59c01 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:47:35, skipping insertion in model container [2024-09-25 11:47:35,774 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:47:34" (2/4) ... [2024-09-25 11:47:35,774 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72d59c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:47:35, skipping insertion in model container [2024-09-25 11:47:35,775 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:47:35" (3/4) ... [2024-09-25 11:47:35,775 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72d59c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:47:35, skipping insertion in model container [2024-09-25 11:47:35,775 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:47:35" (4/4) ... [2024-09-25 11:47:35,776 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound2.i [2024-09-25 11:47:35,779 INFO L113 InvariantChecker]: Found 2 loops. [2024-09-25 11:47:35,780 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr4ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-25 11:47:35,780 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-25 11:47:35,780 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-25 11:47:35,781 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:47:35,781 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-25 11:47:35,781 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-25 11:47:35,781 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-25 11:47:35,781 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-25 11:47:35,781 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-25 11:47:35,782 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-25 11:47:35,782 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from loop head to loop head, 3 loop-free subgraphs from loop head to error location, 3 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-25 11:47:35,839 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-25 11:47:35,841 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:35,841 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:35,842 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:35,843 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:35,848 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:35,914 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-25 11:47:35,919 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:35,921 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:35,922 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:35,923 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:35,926 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:35,941 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr4ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:47:35,977 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-25 11:47:35,980 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:35,981 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:35,981 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:35,981 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:35,981 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:35,995 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-25 11:47:35,996 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:35,996 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:35,996 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:35,997 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:35,997 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:36,021 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:47:36,044 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-25 11:47:36,044 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:36,044 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:36,045 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:36,045 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:36,045 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,047 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-25 11:47:36,048 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,048 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:36,049 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:36,049 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:36,049 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:36,054 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:47:36,065 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-25 11:47:36,066 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:36,066 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:36,066 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:36,066 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:36,067 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,078 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-25 11:47:36,079 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,079 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:36,079 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:36,080 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:36,080 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:36,085 INFO L520 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:47:36,101 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:47:36,101 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:36,101 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:36,102 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:36,102 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:36,102 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,103 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:47:36,103 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,103 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:36,104 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:36,104 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:36,104 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:36,106 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:47:36,116 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:47:36,116 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:36,117 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:36,117 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:36,117 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:36,117 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,119 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 11:47:36,120 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,120 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:36,121 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:36,121 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:36,122 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:36,123 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:47:36,134 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:47:36,134 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:36,135 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:36,135 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:36,135 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:36,135 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,137 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:47:36,137 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,138 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:36,138 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:36,138 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:36,138 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:36,140 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:47:36,154 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-25 11:47:36,155 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:36,155 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:36,155 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:36,155 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:36,155 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,163 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-25 11:47:36,164 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,164 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:36,164 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:36,164 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:36,166 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:36,184 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-25 11:47:36,184 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:36,185 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:36,185 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:36,185 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:36,185 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,199 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-25 11:47:36,200 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,200 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:36,200 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:36,200 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:36,205 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:36,216 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:47:36,227 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-25 11:47:36,227 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:47:36,227 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:47:36,228 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:47:36,228 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:47:36,228 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,236 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-25 11:47:36,237 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:47:36,237 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:47:36,237 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:47:36,238 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:47:36,240 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:47:36,259 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:47:36,272 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-25 11:47:36,273 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72d59c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:47:36, skipping insertion in model container [2024-09-25 11:47:36,273 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:47:36,275 INFO L158 Benchmark]: Toolchain (without parser) took 1346.41ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 32.6MB in the beginning and 31.9MB in the end (delta: 722.4kB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2024-09-25 11:47:36,276 INFO L158 Benchmark]: Witness Parser took 0.37ms. Allocated memory is still 48.2MB. Free memory is still 23.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:47:36,276 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 48.2MB. Free memory is still 21.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:47:36,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.55ms. Allocated memory is still 62.9MB. Free memory was 32.4MB in the beginning and 33.5MB in the end (delta: -1.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2024-09-25 11:47:36,277 INFO L158 Benchmark]: Boogie Preprocessor took 48.94ms. Allocated memory is still 62.9MB. Free memory was 33.5MB in the beginning and 31.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:47:36,278 INFO L158 Benchmark]: RCFGBuilder took 479.17ms. Allocated memory is still 62.9MB. Free memory was 31.4MB in the beginning and 35.2MB in the end (delta: -3.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 11:47:36,278 INFO L158 Benchmark]: Referee took 501.03ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 31.9MB in the end (delta: 3.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-09-25 11:47:36,281 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=1, B=0, counter=2147483647, q=0, r=0 and ends in \old(counter)=0, A=0, b=1, B=0, counter=-2147483648, q=0, r=0. 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 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 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. 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 exit of procedure main. 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 loop head at line 38 to loop head at line 38. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.37ms. Allocated memory is still 48.2MB. Free memory is still 23.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 48.2MB. Free memory is still 21.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.55ms. Allocated memory is still 62.9MB. Free memory was 32.4MB in the beginning and 33.5MB in the end (delta: -1.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.94ms. Allocated memory is still 62.9MB. Free memory was 33.5MB in the beginning and 31.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.17ms. Allocated memory is still 62.9MB. Free memory was 31.4MB in the beginning and 35.2MB in the end (delta: -3.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 501.03ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 31.9MB in the end (delta: 3.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-25 11:47:36,307 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