./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 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --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 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 20:11:42,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 20:11:42,836 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-12 20:11:42,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 20:11:42,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 20:11:42,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 20:11:42,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 20:11:42,864 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 20:11:42,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 20:11:42,865 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 20:11:42,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 20:11:42,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 20:11:42,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 20:11:42,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 20:11:42,867 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 20:11:42,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 20:11:42,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 20:11:42,869 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 20:11:42,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 20:11:42,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 20:11:42,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 20:11:42,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 20:11:42,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 20:11:42,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 20:11:42,875 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 20:11:42,875 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 20:11:42,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 20:11:42,876 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 20:11:42,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 20:11:42,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 20:11:42,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 20:11:42,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 20:11:42,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 20:11:42,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 20:11:42,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 20:11:42,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 20:11:42,879 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 20:11:42,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 20:11:42,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 20:11:42,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 20:11:42,881 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 20:11:42,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 20:11:42,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 20:11:43,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 20:11:43,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 20:11:43,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 20:11:43,230 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 20:11:43,237 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 20:11:43,238 INFO L431 ainManager$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 20:11:43,303 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 20:11:43,304 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 20:11:43,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-12 20:11:45,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 20:11:45,240 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 20:11:45,241 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-12 20:11:45,248 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/8a7be6d6b/89b186551faa4bef862bb36b9545a6b6/FLAGf609618ed [2024-09-12 20:11:45,264 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/8a7be6d6b/89b186551faa4bef862bb36b9545a6b6 [2024-09-12 20:11:45,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 20:11:45,266 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 20:11:45,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 20:11:45,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 20:11:45,273 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 20:11:45,274 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 08:11:43" (1/2) ... [2024-09-12 20:11:45,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d081f80 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:11:45, skipping insertion in model container [2024-09-12 20:11:45,275 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 08:11:43" (1/2) ... [2024-09-12 20:11:45,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@9bcfb1b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:11:45, skipping insertion in model container [2024-09-12 20:11:45,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 08:11:45" (2/2) ... [2024-09-12 20:11:45,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d081f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45, skipping insertion in model container [2024-09-12 20:11:45,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 08:11:45" (2/2) ... [2024-09-12 20:11:45,290 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 20:11:45,294 INFO L1541 ArrayList]: Loop invariant at [L38-L47] ((\old(counter) == 0) && (((((2 <= counter) && (A == r)) && (q == 0)) && (counter <= 2147483646)) || (((((b == 1) && (A == r)) && (q == 0)) && (B == 1)) && (counter == 1)))) [2024-09-12 20:11:45,294 INFO L1541 ArrayList]: Loop invariant at [L34-L37] ((\old(counter) == 0) && (((((A == r) && (q == 0)) && (counter == 2)) || (((((b == 1) && (A == r)) && (counter == 0)) && (q == 0)) && (B == 1))) || (((A == r) && (q == 0)) && (counter == 1)))) [2024-09-12 20:11:45,294 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-12 20:11:45,294 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-12 20:11:45,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 20:11:45,524 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 20:11:45,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 20:11:45,575 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-12 20:11:45,616 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 20:11:45,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 20:11:45,657 INFO L204 MainTranslator]: Completed translation [2024-09-12 20:11:45,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45 WrapperNode [2024-09-12 20:11:45,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 20:11:45,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 20:11:45,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 20:11:45,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 20:11:45,676 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (1/1) ... [2024-09-12 20:11:45,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (1/1) ... [2024-09-12 20:11:45,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (1/1) ... [2024-09-12 20:11:45,705 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 20:11:45,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (1/1) ... [2024-09-12 20:11:45,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (1/1) ... [2024-09-12 20:11:45,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (1/1) ... [2024-09-12 20:11:45,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (1/1) ... [2024-09-12 20:11:45,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (1/1) ... [2024-09-12 20:11:45,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (1/1) ... [2024-09-12 20:11:45,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 20:11:45,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 20:11:45,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 20:11:45,735 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 20:11:45,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (1/1) ... [2024-09-12 20:11:45,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 20:11:45,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 20:11:45,773 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 20:11:45,779 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 20:11:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 20:11:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 20:11:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 20:11:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 20:11:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 20:11:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 20:11:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 20:11:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 20:11:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-12 20:11:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-12 20:11:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 20:11:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 20:11:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-12 20:11:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 20:11:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 20:11:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 20:11:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 20:11:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-12 20:11:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 20:11:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-12 20:11:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-12 20:11:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 20:11:45,910 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 20:11:45,915 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 20:11:45,987 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 20:11:46,144 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 20:11:46,195 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-09-12 20:11:46,195 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 20:11:46,227 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 20:11:46,228 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 20:11:46,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 08:11:46 BoogieIcfgContainer [2024-09-12 20:11:46,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 20:11:46,229 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 20:11:46,229 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 20:11:46,230 INFO L274 PluginConnector]: Referee initialized [2024-09-12 20:11:46,230 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 08:11:43" (1/4) ... [2024-09-12 20:11:46,231 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5aa02889 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 08:11:46, skipping insertion in model container [2024-09-12 20:11:46,231 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 08:11:45" (2/4) ... [2024-09-12 20:11:46,231 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5aa02889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 08:11:46, skipping insertion in model container [2024-09-12 20:11:46,232 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:45" (3/4) ... [2024-09-12 20:11:46,232 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5aa02889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 08:11:46, skipping insertion in model container [2024-09-12 20:11:46,232 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 08:11:46" (4/4) ... [2024-09-12 20:11:46,234 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound2.i [2024-09-12 20:11:46,238 INFO L112 InvariantChecker]: Found 2 loops. [2024-09-12 20:11:46,241 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr7REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 10 edges. [2024-09-12 20:11:46,242 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-6 to ERROR_LOC mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 3 edges. [2024-09-12 20:11:46,242 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 4 edges. [2024-09-12 20:11:46,242 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-6 to ERROR_LOC mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 4 edges. [2024-09-12 20:11:46,242 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 3 edges. [2024-09-12 20:11:46,242 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr8ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-09-12 20:11:46,243 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 20:11:46,243 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-6 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-12 20:11:46,244 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 6 edges. [2024-09-12 20:11:46,244 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 20:11:46,244 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 20:11:46,244 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 20:11:46,244 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-6 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 9 edges. [2024-09-12 20:11:46,244 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 10 edges. [2024-09-12 20:11:46,245 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 3 loop-free subgraphs from loop head to loop head, 7 loop-free subgraphs from loop head to error location, 3 loop-free subgraphs from procedure entry to error location [2024-09-12 20:11:46,302 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-12 20:11:46,303 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:46,304 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:46,305 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:46,306 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:46,308 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:46,389 INFO L101 BaseMinimizeStates]: Removed 19 edges and 7 locations by large block encoding [2024-09-12 20:11:46,403 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:46,404 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:46,404 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:46,404 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:46,416 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:50,436 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-12 20:11:50,453 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:11:50,453 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:50,453 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:50,454 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:50,454 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:50,454 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,458 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:11:50,459 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,459 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:50,459 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:50,459 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:50,459 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:50,464 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-6 to error location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:11:50,492 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-12 20:11:50,492 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:50,492 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:50,493 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:50,493 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:50,494 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,504 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-12 20:11:50,504 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,505 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:50,505 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:50,507 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:50,507 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:50,510 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:11:50,528 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-12 20:11:50,528 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:50,528 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:50,529 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:50,529 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:50,529 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,536 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-12 20:11:50,536 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,536 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:50,536 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:50,537 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:50,537 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:50,542 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-6 to error location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:11:50,560 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:11:50,561 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:50,562 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:50,562 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:50,562 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:50,563 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,567 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:11:50,567 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,567 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:50,568 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:50,568 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:50,569 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:50,572 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:11:50,588 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 12 edges [2024-09-12 20:11:50,589 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:50,590 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:50,590 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:50,590 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:50,591 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,622 INFO L101 BaseMinimizeStates]: Removed 27 edges and 9 locations by large block encoding [2024-09-12 20:11:50,623 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,623 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:50,624 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:50,624 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:50,625 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:50,627 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr8ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 20:11:50,641 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-12 20:11:50,642 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:50,642 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:50,642 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:50,642 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:50,643 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,645 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-12 20:11:50,647 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,647 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:50,647 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:50,647 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:50,647 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:50,654 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:11:50,670 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-12 20:11:50,670 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:50,671 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:50,672 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:50,672 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:50,672 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,688 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-12 20:11:50,689 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,689 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:50,690 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:50,690 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:50,690 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:50,699 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-6 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:11:50,714 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-12 20:11:50,714 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:50,715 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:50,715 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:50,715 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:50,715 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,725 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-12 20:11:50,726 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:50,726 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:50,726 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:50,726 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:50,727 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:54,731 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-12 20:11:54,755 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:11:54,755 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:54,755 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:54,755 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:54,755 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:54,756 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:54,756 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:11:54,757 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:54,757 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:54,757 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:54,757 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:54,757 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:54,760 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:11:54,774 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-12 20:11:54,775 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:54,775 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:54,775 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:54,776 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:54,776 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:54,780 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-12 20:11:54,780 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:54,781 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:54,781 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:54,781 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:54,782 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:54,784 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 20:11:54,796 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:11:54,796 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:54,797 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:54,797 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:54,798 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:54,798 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:54,800 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:11:54,801 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:54,801 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:54,801 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:54,801 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:54,802 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:54,804 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-12 20:11:54,817 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 9 edges [2024-09-12 20:11:54,817 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:54,818 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:54,818 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:54,818 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:54,818 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:54,848 INFO L101 BaseMinimizeStates]: Removed 17 edges and 6 locations by large block encoding [2024-09-12 20:11:54,848 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:54,849 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:54,849 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:54,849 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:54,854 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:54,860 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-6 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:11:54,872 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 10 edges [2024-09-12 20:11:54,873 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:11:54,873 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:11:54,873 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:11:54,874 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:11:54,874 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:54,912 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-12 20:11:54,913 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:11:54,913 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:11:54,913 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:11:54,913 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:11:54,919 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:11:54,928 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:11:54,932 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness [2024-09-12 20:11:54,934 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5aa02889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 12.09 08:11:54, skipping insertion in model container [2024-09-12 20:11:54,934 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-12 20:11:54,936 INFO L158 Benchmark]: Toolchain (without parser) took 9669.85ms. Allocated memory was 163.6MB in the beginning and 268.4MB in the end (delta: 104.9MB). Free memory was 105.3MB in the beginning and 165.3MB in the end (delta: -60.1MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2024-09-12 20:11:54,937 INFO L158 Benchmark]: Witness Parser took 0.23ms. Allocated memory is still 163.6MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:11:54,937 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 163.6MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:11:54,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.57ms. Allocated memory is still 163.6MB. Free memory was 105.3MB in the beginning and 91.4MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-12 20:11:54,938 INFO L158 Benchmark]: Boogie Preprocessor took 73.62ms. Allocated memory is still 163.6MB. Free memory was 91.4MB in the beginning and 89.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 20:11:54,939 INFO L158 Benchmark]: RCFGBuilder took 493.69ms. Allocated memory is still 163.6MB. Free memory was 89.0MB in the beginning and 72.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-12 20:11:54,939 INFO L158 Benchmark]: Referee took 8705.50ms. Allocated memory was 163.6MB in the beginning and 268.4MB in the end (delta: 104.9MB). Free memory was 72.2MB in the beginning and 165.3MB in the end (delta: -93.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-09-12 20:11:54,942 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 entry of procedure main 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 loop head at line 34 to check that integer overflow can never occur at line 34. 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 ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from loop head at line 34 to check that integer overflow can never occur 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 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 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 integer overflow can never occur at line 38. Annotation is valid for all loop-free paths from loop head at line 38 to check that integer overflow can never occur at line 38. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.23ms. Allocated memory is still 163.6MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 163.6MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.57ms. Allocated memory is still 163.6MB. Free memory was 105.3MB in the beginning and 91.4MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.62ms. Allocated memory is still 163.6MB. Free memory was 91.4MB in the beginning and 89.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.69ms. Allocated memory is still 163.6MB. Free memory was 89.0MB in the beginning and 72.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Referee took 8705.50ms. Allocated memory was 163.6MB in the beginning and 268.4MB in the end (delta: 104.9MB). Free memory was 72.2MB in the beginning and 165.3MB in the end (delta: -93.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 20:11:54,967 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 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 20:11:57,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 20:11:57,344 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-12 20:11:57,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 20:11:57,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 20:11:57,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 20:11:57,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 20:11:57,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 20:11:57,392 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 20:11:57,392 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 20:11:57,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 20:11:57,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 20:11:57,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 20:11:57,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 20:11:57,394 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 20:11:57,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 20:11:57,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 20:11:57,395 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 20:11:57,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 20:11:57,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 20:11:57,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 20:11:57,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 20:11:57,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 20:11:57,398 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-12 20:11:57,398 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-12 20:11:57,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 20:11:57,399 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-12 20:11:57,399 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 20:11:57,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 20:11:57,400 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 20:11:57,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 20:11:57,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 20:11:57,401 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 20:11:57,401 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 20:11:57,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 20:11:57,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 20:11:57,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 20:11:57,402 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 20:11:57,403 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-12 20:11:57,403 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-12 20:11:57,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 20:11:57,408 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 20:11:57,408 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 20:11:57,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 20:11:57,408 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-12 20:11:57,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 20:11:57,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 20:11:57,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 20:11:57,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 20:11:57,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 20:11:57,726 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 20:11:57,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-12 20:11:59,364 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 20:11:59,570 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 20:11:59,571 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-12 20:11:59,581 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/be959b078/fb6de0a0870b41ea9712f8eb66d92605/FLAG22ef125b6 [2024-09-12 20:11:59,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/be959b078/fb6de0a0870b41ea9712f8eb66d92605 [2024-09-12 20:11:59,605 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 20:11:59,606 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 20:11:59,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.yml/witness-2.1.yml [2024-09-12 20:11:59,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 20:11:59,682 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 20:11:59,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 20:11:59,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 20:11:59,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 20:11:59,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 08:11:59" (1/2) ... [2024-09-12 20:11:59,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6058fc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:59, skipping insertion in model container [2024-09-12 20:11:59,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 08:11:59" (1/2) ... [2024-09-12 20:11:59,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@e0ee5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:11:59, skipping insertion in model container [2024-09-12 20:11:59,695 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 08:11:59" (2/2) ... [2024-09-12 20:11:59,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6058fc78 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:11:59, skipping insertion in model container [2024-09-12 20:11:59,696 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 08:11:59" (2/2) ... [2024-09-12 20:11:59,707 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 20:11:59,709 INFO L1541 ArrayList]: Loop invariant at [L38-L47] ((\old(counter) == 0) && (((((2 <= counter) && (A == r)) && (q == 0)) && (counter <= 2147483646)) || (((((b == 1) && (A == r)) && (q == 0)) && (B == 1)) && (counter == 1)))) [2024-09-12 20:11:59,709 INFO L1541 ArrayList]: Loop invariant at [L34-L37] ((\old(counter) == 0) && (((((A == r) && (q == 0)) && (counter == 2)) || (((((b == 1) && (A == r)) && (counter == 0)) && (q == 0)) && (B == 1))) || (((A == r) && (q == 0)) && (counter == 1)))) [2024-09-12 20:11:59,709 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-12 20:11:59,709 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-12 20:11:59,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 20:11:59,901 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 20:11:59,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 20:11:59,942 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-12 20:11:59,980 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 20:12:00,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 20:12:00,021 INFO L204 MainTranslator]: Completed translation [2024-09-12 20:12:00,022 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:12:00 WrapperNode [2024-09-12 20:12:00,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 20:12:00,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 20:12:00,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 20:12:00,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 20:12:00,036 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 08:12:00" (1/1) ... [2024-09-12 20:12:00,037 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 08:12:00" (1/1) ... [2024-09-12 20:12:00,046 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 08:12:00" (1/1) ... [2024-09-12 20:12:00,067 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 20:12:00,068 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 08:12:00" (1/1) ... [2024-09-12 20:12:00,068 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 08:12:00" (1/1) ... [2024-09-12 20:12:00,079 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 08:12:00" (1/1) ... [2024-09-12 20:12:00,086 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 08:12:00" (1/1) ... [2024-09-12 20:12:00,087 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 08:12:00" (1/1) ... [2024-09-12 20:12:00,088 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 08:12:00" (1/1) ... [2024-09-12 20:12:00,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 20:12:00,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 20:12:00,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 20:12:00,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 20:12:00,098 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 08:12:00" (1/1) ... [2024-09-12 20:12:00,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 20:12:00,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 20:12:00,126 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 20:12:00,129 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 20:12:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 20:12:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 20:12:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 20:12:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 20:12:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 20:12:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 20:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 20:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 20:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-12 20:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-12 20:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 20:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 20:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-12 20:12:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 20:12:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 20:12:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 20:12:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 20:12:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-12 20:12:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 20:12:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-12 20:12:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-12 20:12:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 20:12:00,250 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 20:12:00,253 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 20:12:00,308 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 20:12:00,591 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 20:12:00,659 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-09-12 20:12:00,659 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 20:12:00,696 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 20:12:00,697 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 20:12:00,697 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 08:12:00 BoogieIcfgContainer [2024-09-12 20:12:00,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 20:12:00,698 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 20:12:00,698 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 20:12:00,699 INFO L274 PluginConnector]: Referee initialized [2024-09-12 20:12:00,699 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 08:11:59" (1/4) ... [2024-09-12 20:12:00,700 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@39e5f22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 08:12:00, skipping insertion in model container [2024-09-12 20:12:00,701 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 08:11:59" (2/4) ... [2024-09-12 20:12:00,702 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@39e5f22e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 08:12:00, skipping insertion in model container [2024-09-12 20:12:00,702 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 08:12:00" (3/4) ... [2024-09-12 20:12:00,702 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@39e5f22e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 08:12:00, skipping insertion in model container [2024-09-12 20:12:00,702 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 08:12:00" (4/4) ... [2024-09-12 20:12:00,704 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound2.i [2024-09-12 20:12:00,707 INFO L112 InvariantChecker]: Found 2 loops. [2024-09-12 20:12:00,708 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr7REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 10 edges. [2024-09-12 20:12:00,709 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-6 to ERROR_LOC mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 3 edges. [2024-09-12 20:12:00,709 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 4 edges. [2024-09-12 20:12:00,709 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-6 to ERROR_LOC mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 4 edges. [2024-09-12 20:12:00,709 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW. Corresponding subgraph has 3 edges. [2024-09-12 20:12:00,710 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr8ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-09-12 20:12:00,710 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 20:12:00,710 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-6 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-12 20:12:00,711 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 6 edges. [2024-09-12 20:12:00,711 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 20:12:00,711 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 20:12:00,712 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 20:12:00,712 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-6 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 9 edges. [2024-09-12 20:12:00,712 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 10 edges. [2024-09-12 20:12:00,713 INFO L130 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head, 7 loop-free subgraphs from loop head to error location, 3 loop-free subgraphs from loop head to loop head [2024-09-12 20:12:00,777 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-12 20:12:00,778 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:00,779 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:00,779 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:00,780 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:00,782 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:00,832 INFO L101 BaseMinimizeStates]: Removed 19 edges and 7 locations by large block encoding [2024-09-12 20:12:00,834 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:00,834 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:00,834 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:00,835 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:00,843 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:00,876 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr7REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:12:00,901 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:12:00,901 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:00,901 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:00,902 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:00,902 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:00,902 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:00,905 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:12:00,905 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:00,906 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:00,906 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:00,907 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:00,907 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:00,909 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-6 to error location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:12:00,926 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-12 20:12:00,927 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:00,927 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:00,927 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:00,927 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:00,927 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:00,941 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-12 20:12:00,942 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:00,942 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:00,942 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:00,942 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:00,943 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:00,945 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:12:00,957 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-12 20:12:00,957 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:00,958 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:00,958 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:00,958 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:00,958 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:00,963 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-12 20:12:00,963 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:00,964 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:00,964 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:00,964 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:00,964 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:00,967 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-6 to error location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:12:00,978 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:12:00,979 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:00,979 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:00,979 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:00,979 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:00,979 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:00,982 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:12:00,982 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:00,982 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:00,982 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:00,983 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:00,983 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:00,984 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW is inductive. [2024-09-12 20:12:00,996 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 12 edges [2024-09-12 20:12:00,996 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:00,996 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:00,996 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:00,997 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:00,997 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,027 INFO L101 BaseMinimizeStates]: Removed 27 edges and 9 locations by large block encoding [2024-09-12 20:12:01,028 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,028 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:01,028 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:01,028 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:01,029 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:01,033 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr8ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 20:12:01,042 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-12 20:12:01,042 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:01,043 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:01,043 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:01,043 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:01,044 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,058 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-12 20:12:01,058 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,058 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:01,058 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:01,058 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:01,059 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:01,065 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:12:01,078 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-12 20:12:01,078 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:01,078 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:01,079 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:01,080 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:01,080 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,093 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-12 20:12:01,094 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,094 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:01,094 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:01,094 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:01,094 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:01,100 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-6 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:12:01,115 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-12 20:12:01,116 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:01,116 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:01,117 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:01,117 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:01,117 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,129 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-12 20:12:01,129 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,129 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:01,129 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:01,129 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:01,130 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:01,147 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr6REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:12:01,161 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:12:01,161 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:01,161 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:01,161 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:01,162 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:01,162 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,162 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:12:01,163 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,163 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:01,164 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:01,164 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:01,164 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:01,167 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:12:01,176 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-12 20:12:01,176 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:01,177 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:01,177 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:01,177 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:01,177 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,181 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-12 20:12:01,181 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,182 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:01,182 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:01,182 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:01,183 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:01,184 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 20:12:01,203 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:12:01,203 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:01,204 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:01,204 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:01,204 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:01,204 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,206 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:12:01,207 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,207 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:01,207 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:01,207 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:01,207 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:01,211 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-12 20:12:01,220 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 9 edges [2024-09-12 20:12:01,220 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:01,220 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:01,220 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:01,220 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:01,220 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,234 INFO L101 BaseMinimizeStates]: Removed 17 edges and 6 locations by large block encoding [2024-09-12 20:12:01,235 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,235 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:01,235 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:01,235 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:01,238 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:01,247 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-6 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:12:01,256 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 10 edges [2024-09-12 20:12:01,257 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:12:01,257 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:12:01,257 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:12:01,257 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:12:01,258 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,277 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-12 20:12:01,278 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:12:01,278 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:12:01,278 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:12:01,278 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:12:01,289 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:12:01,298 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:12:01,305 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-12 20:12:01,306 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@39e5f22e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 12.09 08:12:01, skipping insertion in model container [2024-09-12 20:12:01,306 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-12 20:12:01,309 INFO L158 Benchmark]: Toolchain (without parser) took 1625.24ms. Allocated memory was 60.8MB in the beginning and 90.2MB in the end (delta: 29.4MB). Free memory was 40.3MB in the beginning and 65.9MB in the end (delta: -25.7MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2024-09-12 20:12:01,309 INFO L158 Benchmark]: CDTParser took 1.49ms. Allocated memory is still 48.2MB. Free memory is still 31.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:12:01,310 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 26.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:12:01,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.61ms. Allocated memory is still 60.8MB. Free memory was 40.1MB in the beginning and 25.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-12 20:12:01,311 INFO L158 Benchmark]: Boogie Preprocessor took 72.54ms. Allocated memory is still 60.8MB. Free memory was 25.9MB in the beginning and 39.5MB in the end (delta: -13.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 20:12:01,311 INFO L158 Benchmark]: RCFGBuilder took 600.83ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 39.2MB in the beginning and 49.7MB in the end (delta: -10.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2024-09-12 20:12:01,312 INFO L158 Benchmark]: Referee took 608.68ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 49.7MB in the beginning and 65.9MB in the end (delta: -16.3MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2024-09-12 20:12:01,314 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness Annotation is a valid proof of correctness Annotation is valid for all loop-free paths from loop head at line 38 to check that integer overflow can never occur 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 check that integer overflow can never occur 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 39. Annotation is valid for all loop-free paths from loop head at line 38 to check that procedure precondition always holds at line 38. Annotation is valid for all loop-free paths from loop head at line 38 to check that integer overflow can never occur 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. Annotation is valid for all loop-free paths from loop head at line 34 to check that integer overflow can never occur 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 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 34 to loop head at line 38. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.49ms. Allocated memory is still 48.2MB. Free memory is still 31.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 26.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.61ms. Allocated memory is still 60.8MB. Free memory was 40.1MB in the beginning and 25.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.54ms. Allocated memory is still 60.8MB. Free memory was 25.9MB in the beginning and 39.5MB in the end (delta: -13.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 600.83ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 39.2MB in the beginning and 49.7MB in the end (delta: -10.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Referee took 608.68ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 49.7MB in the beginning and 65.9MB in the end (delta: -16.3MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 20:12:01,346 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 Result: TRUE