./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/nested5-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/nested5-1.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/loops-crafted-1/nested5-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/nested5-1.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-dev-a9b967e-m [2024-09-11 20:47:31,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:32,055 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:47:32,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:32,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:32,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:32,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:32,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:32,089 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:32,089 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:32,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:32,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:32,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:32,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:32,091 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:32,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:32,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:32,091 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:32,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:47:32,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:32,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:32,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:32,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:32,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:32,096 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:32,096 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:32,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:32,097 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:32,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:32,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:32,097 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:32,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:32,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:32,098 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:32,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:32,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:32,098 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:47:32,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:47:32,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:32,099 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:32,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:32,101 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:32,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:32,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:32,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:32,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:32,347 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:32,347 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:32,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2024-09-11 20:47:33,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:33,726 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:33,726 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2024-09-11 20:47:33,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/54bb0ebce/c4fcb923c4de45d9a8bb868deb9c3b74/FLAGc1b1a4afb [2024-09-11 20:47:34,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/54bb0ebce/c4fcb923c4de45d9a8bb868deb9c3b74 [2024-09-11 20:47:34,140 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:34,141 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:34,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/nested5-1.yml/witness-2.1.yml [2024-09-11 20:47:34,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:34,183 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:34,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:34,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:34,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:34,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:34" (1/2) ... [2024-09-11 20:47:34,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e736e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:34, skipping insertion in model container [2024-09-11 20:47:34,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:34" (1/2) ... [2024-09-11 20:47:34,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7ac3e919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:34, skipping insertion in model container [2024-09-11 20:47:34,193 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 08:47:34" (2/2) ... [2024-09-11 20:47:34,193 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e736e51 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:34, skipping insertion in model container [2024-09-11 20:47:34,193 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 08:47:34" (2/2) ... [2024-09-11 20:47:34,198 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:34,199 INFO L1541 ArrayList]: Loop invariant at [L23-L23] ((((4294967295 + v) % 4294967296) < 10) || (v == 0)) [2024-09-11 20:47:34,215 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:34,339 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/loops-crafted-1/nested5-1.c[321,334] [2024-09-11 20:47:34,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:34,364 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:47:34,374 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/loops-crafted-1/nested5-1.c[321,334] Start Parsing Local [2024-09-11 20:47:34,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:34,427 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:34,428 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:34 WrapperNode [2024-09-11 20:47:34,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:34,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:34,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:34,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:34,439 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 11.09 08:47:34" (1/1) ... [2024-09-11 20:47:34,439 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 11.09 08:47:34" (1/1) ... [2024-09-11 20:47:34,444 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 11.09 08:47:34" (1/1) ... [2024-09-11 20:47:34,455 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 20:47:34,455 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 11.09 08:47:34" (1/1) ... [2024-09-11 20:47:34,456 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 11.09 08:47:34" (1/1) ... [2024-09-11 20:47:34,459 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 11.09 08:47:34" (1/1) ... [2024-09-11 20:47:34,466 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 11.09 08:47:34" (1/1) ... [2024-09-11 20:47:34,467 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 11.09 08:47:34" (1/1) ... [2024-09-11 20:47:34,468 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 11.09 08:47:34" (1/1) ... [2024-09-11 20:47:34,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:34,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:34,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:34,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:34,471 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 11.09 08:47:34" (1/1) ... [2024-09-11 20:47:34,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:34,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:34,503 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 20:47:34,506 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 20:47:34,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:34,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:47:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:34,547 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:47:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:47:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:47:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:34,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:47:34,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:47:34,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:34,611 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:34,613 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:34,763 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:34,763 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:34,789 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:34,789 INFO L318 CfgBuilder]: Removed 5 assume(true) statements. [2024-09-11 20:47:34,789 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:34 BoogieIcfgContainer [2024-09-11 20:47:34,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:34,791 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:34,791 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:34,792 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:34,792 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:34" (1/4) ... [2024-09-11 20:47:34,793 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e24a813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:34, skipping insertion in model container [2024-09-11 20:47:34,794 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 08:47:34" (2/4) ... [2024-09-11 20:47:34,794 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e24a813 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:34, skipping insertion in model container [2024-09-11 20:47:34,794 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 11.09 08:47:34" (3/4) ... [2024-09-11 20:47:34,795 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e24a813 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:34, skipping insertion in model container [2024-09-11 20:47:34,795 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:34" (4/4) ... [2024-09-11 20:47:34,796 INFO L79 RefereeObserver]: Analyzing ICFG nested5-1.c [2024-09-11 20:47:34,799 INFO L112 InvariantChecker]: Found 5 loops. [2024-09-11 20:47:34,800 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:47:34,800 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L22-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-11 20:47:34,800 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 20:47:34,800 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to error location [2024-09-11 20:47:34,833 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:34,834 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:34,834 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:34,835 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:34,835 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:34,838 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:34,847 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:34,848 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:34,848 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:34,848 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:34,849 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:34,849 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:34,867 INFO L514 InvariantChecker]: The annotation(s) from loop head L23-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:34,881 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-11 20:47:34,882 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:34,882 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:34,882 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:34,882 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:34,882 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:34,884 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-11 20:47:34,886 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:34,886 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:34,887 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:34,887 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:34,887 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:34,892 INFO L514 InvariantChecker]: The annotation(s) from loop head L22-2 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:34,902 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:34,902 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:34,902 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:34,902 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:34,903 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:34,903 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:34,904 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:34,904 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:34,904 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:34,904 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:34,904 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:34,904 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:34,918 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:47:34,918 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e24a813 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:47:34, skipping insertion in model container [2024-09-11 20:47:34,918 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:47:34,919 INFO L158 Benchmark]: Toolchain (without parser) took 735.86ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 62.3MB in the beginning and 111.8MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:34,920 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory was 97.7MB in the beginning and 97.5MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:34,920 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:34,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.11ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 62.1MB in the beginning and 137.7MB in the end (delta: -75.6MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-09-11 20:47:34,921 INFO L158 Benchmark]: Boogie Preprocessor took 40.43ms. Allocated memory is still 167.8MB. Free memory was 137.7MB in the beginning and 135.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:47:34,922 INFO L158 Benchmark]: RCFGBuilder took 319.72ms. Allocated memory is still 167.8MB. Free memory was 135.7MB in the beginning and 121.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:34,922 INFO L158 Benchmark]: Referee took 127.64ms. Allocated memory is still 167.8MB. Free memory was 121.0MB in the beginning and 111.8MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-11 20:47:34,924 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 23 to loop head at line 23. Annotation is valid for all loop-free paths from loop head at line 22 to loop head at line 23. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory was 97.7MB in the beginning and 97.5MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.11ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 62.1MB in the beginning and 137.7MB in the end (delta: -75.6MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.43ms. Allocated memory is still 167.8MB. Free memory was 137.7MB in the beginning and 135.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 319.72ms. Allocated memory is still 167.8MB. Free memory was 135.7MB in the beginning and 121.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 127.64ms. Allocated memory is still 167.8MB. Free memory was 121.0MB in the beginning and 111.8MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:47:34,945 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