./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/underapprox_2-2.c --full-output --witness-type correctness_witness --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_2-2.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-acceleration/underapprox_2-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_2-2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 20:10:39,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 20:10:39,530 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-12 20:10:39,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 20:10:39,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 20:10:39,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 20:10:39,564 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 20:10:39,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 20:10:39,565 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 20:10:39,565 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 20:10:39,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 20:10:39,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 20:10:39,566 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 20:10:39,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 20:10:39,567 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 20:10:39,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 20:10:39,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 20:10:39,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 20:10:39,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 20:10:39,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 20:10:39,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 20:10:39,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 20:10:39,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 20:10:39,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 20:10:39,573 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 20:10:39,573 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 20:10:39,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 20:10:39,573 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 20:10:39,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 20:10:39,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 20:10:39,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 20:10:39,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 20:10:39,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 20:10:39,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 20:10:39,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 20:10:39,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 20:10:39,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 20:10:39,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 20:10:39,577 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 20:10:39,577 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 20:10:39,577 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 20:10:39,578 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 20:10:39,578 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 20:10:39,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 20:10:39,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 20:10:39,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 20:10:39,852 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 20:10:39,852 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 20:10:39,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/underapprox_2-2.c [2024-09-12 20:10:41,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 20:10:41,421 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 20:10:41,422 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/underapprox_2-2.c [2024-09-12 20:10:41,428 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/ef4596fc6/d13f416b47d348ea8e04cf3bfc417583/FLAGd15a1094c [2024-09-12 20:10:41,821 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/ef4596fc6/d13f416b47d348ea8e04cf3bfc417583 [2024-09-12 20:10:41,824 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 20:10:41,825 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 20:10:41,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_2-2.yml/witness-2.1.yml [2024-09-12 20:10:41,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 20:10:41,880 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 20:10:41,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 20:10:41,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 20:10:41,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 20:10:41,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 08:10:41" (1/2) ... [2024-09-12 20:10:41,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbd26d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:10:41, skipping insertion in model container [2024-09-12 20:10:41,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 08:10:41" (1/2) ... [2024-09-12 20:10:41,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d72b7fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 08:10:41, skipping insertion in model container [2024-09-12 20:10:41,892 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 08:10:41" (2/2) ... [2024-09-12 20:10:41,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbd26d2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:41, skipping insertion in model container [2024-09-12 20:10:41,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 08:10:41" (2/2) ... [2024-09-12 20:10:41,901 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 20:10:41,904 INFO L1541 ArrayList]: Loop invariant at [L16-L19] (((x % 4294967296) == 6) || ((x % 4294967296) < 6)) [2024-09-12 20:10:41,904 INFO L1541 ArrayList]: Function contract at [L5]: requires (0 < \old(cond)), ensures (0 < \old(cond)) [2024-09-12 20:10:41,921 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 20:10:42,068 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-acceleration/underapprox_2-2.c[327,340] [2024-09-12 20:10:42,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 20:10:42,088 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-12 20:10:42,128 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-acceleration/underapprox_2-2.c[327,340] Start Parsing Local [2024-09-12 20:10:42,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 20:10:42,153 INFO L204 MainTranslator]: Completed translation [2024-09-12 20:10:42,154 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42 WrapperNode [2024-09-12 20:10:42,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 20:10:42,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 20:10:42,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 20:10:42,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 20:10:42,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (1/1) ... [2024-09-12 20:10:42,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (1/1) ... [2024-09-12 20:10:42,175 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (1/1) ... [2024-09-12 20:10:42,187 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-12 20:10:42,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (1/1) ... [2024-09-12 20:10:42,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (1/1) ... [2024-09-12 20:10:42,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (1/1) ... [2024-09-12 20:10:42,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (1/1) ... [2024-09-12 20:10:42,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (1/1) ... [2024-09-12 20:10:42,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (1/1) ... [2024-09-12 20:10:42,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 20:10:42,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 20:10:42,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 20:10:42,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 20:10:42,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (1/1) ... [2024-09-12 20:10:42,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 20:10:42,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 20:10:42,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 20:10:42,254 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 20:10:42,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 20:10:42,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 20:10:42,295 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 20:10:42,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 20:10:42,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 20:10:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 20:10:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 20:10:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 20:10:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 20:10:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 20:10:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 20:10:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 20:10:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-12 20:10:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 20:10:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-12 20:10:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-12 20:10:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 20:10:42,356 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 20:10:42,358 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 20:10:42,466 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 20:10:42,510 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-09-12 20:10:42,510 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 20:10:42,529 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 20:10:42,529 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 20:10:42,530 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 08:10:42 BoogieIcfgContainer [2024-09-12 20:10:42,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 20:10:42,531 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 20:10:42,531 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 20:10:42,532 INFO L274 PluginConnector]: Referee initialized [2024-09-12 20:10:42,532 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 08:10:41" (1/4) ... [2024-09-12 20:10:42,532 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@20fcbe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 08:10:42, skipping insertion in model container [2024-09-12 20:10:42,533 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 08:10:41" (2/4) ... [2024-09-12 20:10:42,533 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@20fcbe8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 08:10:42, skipping insertion in model container [2024-09-12 20:10:42,533 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:42" (3/4) ... [2024-09-12 20:10:42,533 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@20fcbe8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 08:10:42, skipping insertion in model container [2024-09-12 20:10:42,533 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 08:10:42" (4/4) ... [2024-09-12 20:10:42,535 INFO L79 RefereeObserver]: Analyzing ICFG underapprox_2-2.c [2024-09-12 20:10:42,539 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-12 20:10:42,540 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-12 20:10:42,541 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-12 20:10:42,542 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-12 20:10:42,542 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-12 20:10:42,543 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-12 20:10:42,543 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from loop head to error location [2024-09-12 20:10:42,585 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-12 20:10:42,586 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:10:42,588 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:10:42,589 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:10:42,590 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:10:42,591 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:42,603 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-12 20:10:42,605 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:42,605 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:10:42,605 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:10:42,605 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:10:42,613 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:10:42,628 INFO L514 InvariantChecker]: The annotation(s) from loop head L16-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:10:42,637 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-12 20:10:42,637 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:10:42,638 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:10:42,638 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:10:42,638 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:10:42,638 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:42,642 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-12 20:10:42,642 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:42,643 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:10:42,643 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:10:42,643 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:10:42,643 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:10:42,653 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:10:42,661 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:10:42,661 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:10:42,662 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:10:42,662 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:10:42,662 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:10:42,662 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:42,668 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:10:42,669 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:42,669 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:10:42,669 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:10:42,669 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:10:42,669 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:10:42,672 INFO L514 InvariantChecker]: The annotation(s) from loop head L16-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 20:10:42,680 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-12 20:10:42,680 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:10:42,680 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:10:42,680 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:10:42,681 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:10:42,681 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:42,685 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-12 20:10:42,685 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:42,685 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:10:42,686 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:10:42,686 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:10:42,689 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:10:42,695 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 20:10:42,704 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:10:42,704 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:10:42,705 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:10:42,708 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:10:42,709 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:10:42,709 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:42,713 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:10:42,713 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:42,713 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:10:42,713 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:10:42,714 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:10:42,714 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:10:42,716 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-12 20:10:42,720 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-12 20:10:42,721 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@20fcbe8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 12.09 08:10:42, skipping insertion in model container [2024-09-12 20:10:42,722 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-12 20:10:42,725 INFO L158 Benchmark]: Toolchain (without parser) took 842.82ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 63.5MB in the beginning and 143.7MB in the end (delta: -80.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:10:42,725 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 134.2MB. Free memory was 66.8MB in the beginning and 66.6MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:10:42,727 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:10:42,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.67ms. Allocated memory is still 134.2MB. Free memory was 63.3MB in the beginning and 50.4MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 20:10:42,729 INFO L158 Benchmark]: Boogie Preprocessor took 45.95ms. Allocated memory is still 134.2MB. Free memory was 50.4MB in the beginning and 48.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 20:10:42,730 INFO L158 Benchmark]: RCFGBuilder took 328.59ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 48.5MB in the beginning and 155.2MB in the end (delta: -106.7MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-09-12 20:10:42,731 INFO L158 Benchmark]: Referee took 191.23ms. Allocated memory is still 195.0MB. Free memory was 155.2MB in the beginning and 143.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 20:10:42,735 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness Annotation is a valid proof of correctness Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 7. 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 16 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 entry of procedure main to loop head at line 16. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 134.2MB. Free memory was 66.8MB in the beginning and 66.6MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.67ms. Allocated memory is still 134.2MB. Free memory was 63.3MB in the beginning and 50.4MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.95ms. Allocated memory is still 134.2MB. Free memory was 50.4MB in the beginning and 48.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.59ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 48.5MB in the beginning and 155.2MB in the end (delta: -106.7MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Referee took 191.23ms. Allocated memory is still 195.0MB. Free memory was 155.2MB in the beginning and 143.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 20:10:42,761 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE