./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/nested9.i --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/nested9.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-invgen/nested9.i ../results/automizer-verification-files/SV-COMP24_unreach-call/nested9.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:46:55,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:46:55,762 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:46:55,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:46:55,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:46:55,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:46:55,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:46:55,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:46:55,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:46:55,812 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:46:55,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:46:55,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:46:55,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:46:55,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:46:55,816 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:46:55,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:46:55,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:46:55,816 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:46:55,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:46:55,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:46:55,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:46:55,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:46:55,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:46:55,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:46:55,821 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:46:55,821 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:46:55,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:46:55,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:46:55,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:46:55,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:46:55,822 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:46:55,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:46:55,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:46:55,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:46:55,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:46:55,823 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:46:55,823 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:46:55,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:46:55,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:46:55,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:46:55,824 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:46:55,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:46:55,825 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:46:56,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:46:56,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:46:56,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:46:56,096 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:46:56,097 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:46:56,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/nested9.yml/witness-2.1.yml [2024-09-11 20:46:56,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:46:56,200 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:46:56,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/nested9.i [2024-09-11 20:46:57,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:46:57,834 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:46:57,834 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/nested9.i [2024-09-11 20:46:57,843 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/e1a91351a/c8e042522fc74f168826ebf52a64bbd8/FLAG83adbbd34 [2024-09-11 20:46:57,856 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/e1a91351a/c8e042522fc74f168826ebf52a64bbd8 [2024-09-11 20:46:57,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:46:57,857 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:46:57,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:46:57,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:46:57,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:46:57,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:46:56" (1/2) ... [2024-09-11 20:46:57,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656cb28f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:46:57, skipping insertion in model container [2024-09-11 20:46:57,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:46:56" (1/2) ... [2024-09-11 20:46:57,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@65dbe03c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:46:57, skipping insertion in model container [2024-09-11 20:46:57,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:46:57" (2/2) ... [2024-09-11 20:46:57,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656cb28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:57, skipping insertion in model container [2024-09-11 20:46:57,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:46:57" (2/2) ... [2024-09-11 20:46:57,882 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:46:57,883 INFO L1541 ArrayList]: Loop invariant at [L34-L37] (((i == 0) || ((i == 1) && (i <= ((long long) n + 1)))) || (((1 <= i) && (2 <= n)) && (i <= ((long long) n + 1)))) [2024-09-11 20:46:57,883 INFO L1541 ArrayList]: Loop invariant at [L35-L37] (((((1 <= i) && (((long long) 2 * i) <= j)) && (j <= ((((long long) 2 * n) + i) + 1))) && (((long long) i + 1) <= n)) || (((i == 0) && (1 <= n)) && (j == 0))) [2024-09-11 20:46:57,884 INFO L1541 ArrayList]: Loop invariant at [L36-L37] (((((long long) 2 * i) <= j) && (((long long) j + 1) <= ((long long) 3 * i))) && (((long long) i + 1) <= n)) [2024-09-11 20:46:57,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:46:58,046 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/nested9.i[893,906] [2024-09-11 20:46:58,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:46:58,079 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:46:58,093 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/nested9.i[893,906] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-11 20:46:58,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:46:58,150 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:46:58,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58 WrapperNode [2024-09-11 20:46:58,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:46:58,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:46:58,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:46:58,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:46:58,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (1/1) ... [2024-09-11 20:46:58,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (1/1) ... [2024-09-11 20:46:58,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (1/1) ... [2024-09-11 20:46:58,200 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-11 20:46:58,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (1/1) ... [2024-09-11 20:46:58,203 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (1/1) ... [2024-09-11 20:46:58,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (1/1) ... [2024-09-11 20:46:58,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (1/1) ... [2024-09-11 20:46:58,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (1/1) ... [2024-09-11 20:46:58,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (1/1) ... [2024-09-11 20:46:58,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:46:58,228 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:46:58,228 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:46:58,228 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:46:58,229 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (1/1) ... [2024-09-11 20:46:58,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:46:58,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:46:58,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-11 20:46:58,274 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-11 20:46:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:46:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:46:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:46:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:46:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:46:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:46:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:46:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:46:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-11 20:46:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-11 20:46:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:46:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:46:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:46:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:46:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:46:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:46:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:46:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:46:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:46:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:46:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:46:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:46:58,413 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:46:58,415 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:46:58,638 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-09-11 20:46:58,639 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:46:58,658 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:46:58,659 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-11 20:46:58,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:46:58 BoogieIcfgContainer [2024-09-11 20:46:58,659 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:46:58,660 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:46:58,660 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:46:58,665 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:46:58,665 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:46:56" (1/4) ... [2024-09-11 20:46:58,665 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1865bfc6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:46:58, skipping insertion in model container [2024-09-11 20:46:58,665 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:46:57" (2/4) ... [2024-09-11 20:46:58,666 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1865bfc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:46:58, skipping insertion in model container [2024-09-11 20:46:58,666 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:58" (3/4) ... [2024-09-11 20:46:58,666 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1865bfc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:46:58, skipping insertion in model container [2024-09-11 20:46:58,666 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:46:58" (4/4) ... [2024-09-11 20:46:58,671 INFO L79 RefereeObserver]: Analyzing ICFG nested9.i [2024-09-11 20:46:58,676 INFO L112 InvariantChecker]: Found 3 loops. [2024-09-11 20:46:58,677 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-3 to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:46:58,677 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L35-4 to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:46:58,677 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-11 20:46:58,678 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L35-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:46:58,678 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-3 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:46:58,678 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:46:58,678 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:46:58,678 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to error location, 5 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head [2024-09-11 20:46:58,715 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-11 20:46:58,716 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:58,716 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:58,717 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:58,719 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:58,721 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,743 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-11 20:46:58,747 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,748 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:58,748 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:58,748 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:58,753 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:58,774 INFO L514 InvariantChecker]: The annotation(s) from loop head L36-3 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:46:58,795 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:46:58,795 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:58,796 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:58,796 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:58,796 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:58,796 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,805 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:46:58,808 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,808 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:58,809 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:58,809 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:58,809 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:58,815 INFO L514 InvariantChecker]: The annotation(s) from loop head L35-4 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:46:58,831 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:46:58,832 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:58,832 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:58,833 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:58,833 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:58,833 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,849 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:46:58,850 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,850 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:58,851 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:58,851 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:58,851 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:58,855 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:46:58,887 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:46:58,887 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:58,887 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:58,887 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:58,888 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:58,888 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,900 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-11 20:46:58,900 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,900 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:58,900 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:58,900 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:58,908 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:58,913 INFO L514 InvariantChecker]: The annotation(s) from loop head L35-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:46:58,928 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:46:58,929 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:58,929 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:58,929 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:58,929 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:58,929 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,936 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-11 20:46:58,943 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,943 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:58,944 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:58,944 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:58,965 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:58,971 INFO L514 InvariantChecker]: The annotation(s) from loop head L36-3 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:46:58,981 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:46:58,983 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:58,983 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:58,985 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:58,985 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:58,985 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,988 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:46:58,989 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:58,990 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:58,990 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:58,990 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:58,990 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:58,993 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:46:59,002 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:46:59,003 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:59,003 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:59,003 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:59,004 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:59,004 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:59,005 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:46:59,006 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:59,006 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:59,006 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:59,006 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:59,007 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:59,017 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:46:59,018 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1865bfc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:46:59, skipping insertion in model container [2024-09-11 20:46:59,018 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:46:59,020 INFO L158 Benchmark]: Toolchain (without parser) took 1161.86ms. Allocated memory is still 148.9MB. Free memory was 116.0MB in the beginning and 105.7MB in the end (delta: 10.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-09-11 20:46:59,020 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:46:59,021 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 115.3MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:46:59,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.33ms. Allocated memory is still 148.9MB. Free memory was 115.2MB in the beginning and 101.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:46:59,023 INFO L158 Benchmark]: Boogie Preprocessor took 76.11ms. Allocated memory is still 148.9MB. Free memory was 101.9MB in the beginning and 99.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:46:59,023 INFO L158 Benchmark]: RCFGBuilder took 431.34ms. Allocated memory is still 148.9MB. Free memory was 99.3MB in the beginning and 84.4MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:46:59,024 INFO L158 Benchmark]: Referee took 358.49ms. Allocated memory is still 148.9MB. Free memory was 84.4MB in the beginning and 105.7MB in the end (delta: -21.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-09-11 20:46:59,026 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 19. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. Annotation is valid for all loop-free paths from loop head at line 35 to loop head at line 36. Annotation is valid for all loop-free paths from loop head at line 35 to loop head at line 34. Annotation is valid for all loop-free paths from loop head at line 34 to loop head at line 35. Annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. 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 36 to loop head at line 35. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 115.3MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.33ms. Allocated memory is still 148.9MB. Free memory was 115.2MB in the beginning and 101.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.11ms. Allocated memory is still 148.9MB. Free memory was 101.9MB in the beginning and 99.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.34ms. Allocated memory is still 148.9MB. Free memory was 99.3MB in the beginning and 84.4MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 358.49ms. Allocated memory is still 148.9MB. Free memory was 84.4MB in the beginning and 105.7MB in the end (delta: -21.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:46:59,057 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE