./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/nested_1-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/nested_1-1.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d 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-acceleration/nested_1-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/nested_1-1.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:25:16,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:16,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:25:16,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:16,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:16,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:16,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:16,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:16,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:16,767 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:16,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:16,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:16,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:16,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:16,769 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:16,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:16,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:16,773 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:16,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:25:16,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:16,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:16,774 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:16,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:16,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:16,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:16,774 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:16,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:16,775 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:16,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:16,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:16,775 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:16,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:16,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:16,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:16,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:16,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:16,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:16,776 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:25:16,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:25:16,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:16,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:16,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:16,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:16,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:17,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:17,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:17,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:17,046 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:17,047 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:17,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/nested_1-1.yml/witness-2.1.yml [2024-09-20 13:25:17,124 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:17,125 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:17,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/nested_1-1.c [2024-09-20 13:25:18,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:25:18,571 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:25:18,571 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/nested_1-1.c [2024-09-20 13:25:18,576 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/490a2df19/cac372cc95844f4fa5b3dd09ffc34023/FLAGd1453558e [2024-09-20 13:25:18,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/490a2df19/cac372cc95844f4fa5b3dd09ffc34023 [2024-09-20 13:25:18,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:25:18,995 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:25:18,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:18,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:25:19,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:25:19,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:17" (1/2) ... [2024-09-20 13:25:19,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36612d21 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:17" (1/2) ... [2024-09-20 13:25:19,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b5d7baa and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:18" (2/2) ... [2024-09-20 13:25:19,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36612d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:18" (2/2) ... [2024-09-20 13:25:19,010 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:25:19,010 INFO L1541 ArrayList]: Loop invariant at [L16-L24] ((x == 0) || (((x + 4294967295) % 4294967296) < 268435455)) [2024-09-20 13:25:19,010 INFO L1541 ArrayList]: Loop invariant at [L19-L21] ((x == 0) || ((x <= 268435454) && (((x + 4294967295) % 4294967296) <= 268435454))) [2024-09-20 13:25:19,010 INFO L1541 ArrayList]: Function contract at [L5]: requires ((0 <= \old(cond)) && (\old(cond) <= 1)), ensures ((0 <= \old(cond)) && (\old(cond) <= 1)) [2024-09-20 13:25:19,021 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:25:19,116 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/nested_1-1.c[322,335] [2024-09-20 13:25:19,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:19,132 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:25:19,160 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/nested_1-1.c[322,335] Start Parsing Local Start Parsing Local [2024-09-20 13:25:19,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:19,183 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:25:19,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19 WrapperNode [2024-09-20 13:25:19,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:19,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:25:19,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:25:19,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:25:19,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,199 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,205 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 [2024-09-20 13:25:19,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,230 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:25:19,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:25:19,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:25:19,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:25:19,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:19,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:25:19,269 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) [2024-09-20 13:25:19,271 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 [2024-09-20 13:25:19,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:25:19,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:25:19,321 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:25:19,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:25:19,322 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:25:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:25:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:25:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:25:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:25:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:25:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:25:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:25:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:25:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:25:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:25:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:25:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:25:19,386 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:25:19,388 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:25:19,535 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:25:19,548 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:25:19,564 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:25:19,564 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-20 13:25:19,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:19 BoogieIcfgContainer [2024-09-20 13:25:19,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:25:19,565 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:25:19,565 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:25:19,565 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:25:19,566 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:17" (1/4) ... [2024-09-20 13:25:19,566 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ab97afd and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,566 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:25:18" (2/4) ... [2024-09-20 13:25:19,566 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ab97afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,566 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (3/4) ... [2024-09-20 13:25:19,567 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ab97afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,567 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:19" (4/4) ... [2024-09-20 13:25:19,568 INFO L79 RefereeObserver]: Analyzing ICFG nested_1-1.c [2024-09-20 13:25:19,570 INFO L113 InvariantChecker]: Found 2 loops. [2024-09-20 13:25:19,571 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:25:19,571 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L19-3 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-20 13:25:19,571 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-20 13:25:19,571 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-20 13:25:19,571 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L19-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:25:19,571 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:25:19,572 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 13:25:19,572 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to error location [2024-09-20 13:25:19,598 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:25:19,599 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,599 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,600 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,601 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,602 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,609 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:25:19,610 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,610 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,610 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,611 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,613 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,623 INFO L520 InvariantChecker]: The annotation(s) from loop head L16-3 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:25:19,631 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:25:19,631 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,631 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,632 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,632 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,632 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,637 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:25:19,637 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,637 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,637 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,637 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,637 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,640 INFO L520 InvariantChecker]: The annotation(s) from loop head L19-3 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:19,648 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:25:19,648 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,648 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,648 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,648 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,648 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,656 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:25:19,657 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,657 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,657 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,657 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,657 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,660 INFO L520 InvariantChecker]: The annotation(s) from loop head L16-3 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:19,669 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:25:19,669 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,670 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,670 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,670 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,670 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,673 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:25:19,676 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,676 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,676 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,677 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,677 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,683 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:19,691 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:19,692 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,692 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,692 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,692 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,692 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,703 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-20 13:25:19,703 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,703 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,703 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,707 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,709 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,718 INFO L520 InvariantChecker]: The annotation(s) from loop head L19-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:19,729 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:19,733 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,733 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,733 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,733 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,734 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,736 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:25:19,736 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,736 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,737 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,737 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,737 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,739 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:25:19,746 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:25:19,749 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,750 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,750 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,750 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,750 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,752 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:25:19,752 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,752 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,752 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,752 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,752 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,767 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-20 13:25:19,768 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ab97afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,768 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:25:19,769 INFO L158 Benchmark]: Toolchain (without parser) took 773.96ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 85.4MB in the beginning and 142.8MB in the end (delta: -57.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:19,771 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 159.4MB. Free memory was 109.8MB in the beginning and 109.7MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:19,772 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 159.4MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:19,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.50ms. Allocated memory is still 159.4MB. Free memory was 85.2MB in the beginning and 72.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:19,773 INFO L158 Benchmark]: Boogie Preprocessor took 50.17ms. Allocated memory is still 159.4MB. Free memory was 72.1MB in the beginning and 128.5MB in the end (delta: -56.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-09-20 13:25:19,774 INFO L158 Benchmark]: RCFGBuilder took 329.24ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 128.5MB in the beginning and 160.6MB in the end (delta: -32.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-09-20 13:25:19,775 INFO L158 Benchmark]: Referee took 203.23ms. Allocated memory is still 199.2MB. Free memory was 160.6MB in the beginning and 142.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-20 13:25:19,777 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 7. 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 16 to check that procedure precondition always holds at line 16. Annotation is valid for all loop-free paths from loop head at line 19 to loop head at line 16. 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 16 to loop head at line 19. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 16. Annotation is valid for all loop-free paths from loop head at line 19 to loop head at line 19. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 159.4MB. Free memory was 109.8MB in the beginning and 109.7MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 159.4MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.50ms. Allocated memory is still 159.4MB. Free memory was 85.2MB in the beginning and 72.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.17ms. Allocated memory is still 159.4MB. Free memory was 72.1MB in the beginning and 128.5MB in the end (delta: -56.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * RCFGBuilder took 329.24ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 128.5MB in the beginning and 160.6MB in the end (delta: -32.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Referee took 203.23ms. Allocated memory is still 199.2MB. Free memory was 160.6MB in the beginning and 142.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-20 13:25:19,816 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