./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/simple_4-2.c --full-output --witness-type correctness_witness --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/simple_4-2.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/simple_4-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/simple_4-2.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 20:10:39,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 20:10:39,125 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-12 20:10:39,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 20:10:39,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 20:10:39,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 20:10:39,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 20:10:39,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 20:10:39,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 20:10:39,162 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 20:10:39,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 20:10:39,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 20:10:39,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 20:10:39,167 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 20:10:39,167 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 20:10:39,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 20:10:39,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 20:10:39,168 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 20:10:39,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 20:10:39,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 20:10:39,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 20:10:39,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 20:10:39,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 20:10:39,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 20:10:39,170 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 20:10:39,171 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 20:10:39,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 20:10:39,171 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 20:10:39,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 20:10:39,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 20:10:39,172 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 20:10:39,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 20:10:39,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 20:10:39,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 20:10:39,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 20:10:39,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 20:10:39,173 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 20:10:39,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 20:10:39,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 20:10:39,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 20:10:39,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 20:10:39,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 20:10:39,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 20:10:39,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 20:10:39,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 20:10:39,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 20:10:39,457 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 20:10:39,457 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 20:10:39,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/simple_4-2.c [2024-09-12 20:10:40,858 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 20:10:41,044 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 20:10:41,044 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/simple_4-2.c [2024-09-12 20:10:41,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/bda970a45/4f0b3f77b56246269dad94321f5ae7cc/FLAG1a5484d9a [2024-09-12 20:10:41,068 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/bda970a45/4f0b3f77b56246269dad94321f5ae7cc [2024-09-12 20:10:41,071 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 20:10:41,071 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 20:10:41,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/simple_4-2.yml/witness-2.1.yml [2024-09-12 20:10:41,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 20:10:41,118 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 20:10:41,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 20:10:41,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 20:10:41,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 20:10:41,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 08:10:41" (1/2) ... [2024-09-12 20:10:41,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66d1a22 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 20:10:41,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 08:10:41" (1/2) ... [2024-09-12 20:10:41,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b0a89b8 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 20:10:41,128 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 20:10:41,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66d1a22 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 20:10:41,128 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 20:10:41,133 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 20:10:41,134 INFO L1541 ArrayList]: Function contract at [L5]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-12 20:10:41,147 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 20:10:41,287 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/simple_4-2.c[322,335] [2024-09-12 20:10:41,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 20:10:41,314 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-12 20:10:41,343 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/simple_4-2.c[322,335] [2024-09-12 20:10:41,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 20:10:41,360 INFO L204 MainTranslator]: Completed translation [2024-09-12 20:10:41,361 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 08:10:41 WrapperNode [2024-09-12 20:10:41,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 20:10:41,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 20:10:41,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 20:10:41,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 20:10:41,372 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 08:10:41" (1/1) ... [2024-09-12 20:10:41,373 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 08:10:41" (1/1) ... [2024-09-12 20:10:41,377 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 08:10:41" (1/1) ... [2024-09-12 20:10:41,384 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 20:10:41,384 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 08:10:41" (1/1) ... [2024-09-12 20:10:41,385 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 08:10:41" (1/1) ... [2024-09-12 20:10:41,387 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 08:10:41" (1/1) ... [2024-09-12 20:10:41,391 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 08:10:41" (1/1) ... [2024-09-12 20:10:41,392 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 08:10:41" (1/1) ... [2024-09-12 20:10:41,392 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 08:10:41" (1/1) ... [2024-09-12 20:10:41,396 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 20:10:41,397 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 20:10:41,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 20:10:41,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 20:10:41,398 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 08:10:41" (1/1) ... [2024-09-12 20:10:41,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 20:10:41,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 20:10:41,422 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 20:10:41,424 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 20:10:41,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 20:10:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 20:10:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 20:10:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 20:10:41,466 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 20:10:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 20:10:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 20:10:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 20:10:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 20:10:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 20:10:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 20:10:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 20:10:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-12 20:10:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 20:10:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-12 20:10:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-12 20:10:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 20:10:41,525 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 20:10:41,526 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 20:10:41,616 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 20:10:41,656 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-09-12 20:10:41,657 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 20:10:41,679 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 20:10:41,680 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 20:10:41,680 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 08:10:41 BoogieIcfgContainer [2024-09-12 20:10:41,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 20:10:41,681 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 20:10:41,681 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 20:10:41,682 INFO L274 PluginConnector]: Referee initialized [2024-09-12 20:10:41,682 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 08:10:41" (1/4) ... [2024-09-12 20:10:41,683 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@692cdb6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 08:10:41, skipping insertion in model container [2024-09-12 20:10:41,683 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 20:10:41,683 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@692cdb6c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 08:10:41, skipping insertion in model container [2024-09-12 20:10:41,684 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 08:10:41" (3/4) ... [2024-09-12 20:10:41,684 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@692cdb6c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 08:10:41, skipping insertion in model container [2024-09-12 20:10:41,684 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 08:10:41" (4/4) ... [2024-09-12 20:10:41,687 INFO L79 RefereeObserver]: Analyzing ICFG simple_4-2.c [2024-09-12 20:10:41,691 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-12 20:10:41,692 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L15-2 to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-12 20:10:41,692 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 20:10:41,693 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 20:10:41,693 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to error location, 2 loop-free subgraphs from procedure entry to error location [2024-09-12 20:10:41,725 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 3 edges [2024-09-12 20:10:41,726 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:10:41,727 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:10:41,731 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:10:41,733 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:10:41,736 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:41,749 INFO L101 BaseMinimizeStates]: Removed 3 edges and 1 locations by large block encoding [2024-09-12 20:10:41,750 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:41,751 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:10:41,751 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:10:41,753 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:10:41,763 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:10:41,783 INFO L514 InvariantChecker]: The annotation(s) from loop head L15-2 to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 20:10:41,812 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-12 20:10:41,813 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:10:41,814 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:10:41,814 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:10:41,817 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:10:41,817 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:41,831 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-12 20:10:41,833 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:41,834 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:10:41,834 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:10:41,834 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:10:41,836 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:10:41,846 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 20:10:41,853 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 20:10:41,853 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 20:10:41,854 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 20:10:41,854 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 20:10:41,854 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 20:10:41,854 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:41,857 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 20:10:41,857 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 20:10:41,857 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 20:10:41,857 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 20:10:41,857 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 20:10:41,857 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 20:10:41,863 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-12 20:10:41,877 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-12 20:10:41,878 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@692cdb6c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 12.09 08:10:41, skipping insertion in model container [2024-09-12 20:10:41,878 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-12 20:10:41,880 INFO L158 Benchmark]: Toolchain (without parser) took 761.22ms. Allocated memory is still 174.1MB. Free memory was 117.0MB in the beginning and 140.2MB in the end (delta: -23.2MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2024-09-12 20:10:41,880 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 174.1MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:10:41,881 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 174.1MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 20:10:41,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.71ms. Allocated memory is still 174.1MB. Free memory was 117.0MB in the beginning and 104.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 20:10:41,881 INFO L158 Benchmark]: Boogie Preprocessor took 33.78ms. Allocated memory is still 174.1MB. Free memory was 104.4MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 20:10:41,882 INFO L158 Benchmark]: RCFGBuilder took 283.68ms. Allocated memory is still 174.1MB. Free memory was 102.3MB in the beginning and 90.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 20:10:41,882 INFO L158 Benchmark]: Referee took 197.37ms. Allocated memory is still 174.1MB. Free memory was 90.6MB in the beginning and 140.2MB in the end (delta: -49.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-09-12 20:10:41,885 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness Annotation is a valid proof of correctness Annotation is valid for all loop-free paths from loop head at line 15 to check that procedure precondition always holds at line 15. 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 __VERIFIER_assert to check that a call to reach_error is unreachable at line 7. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 174.1MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 174.1MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.71ms. Allocated memory is still 174.1MB. Free memory was 117.0MB in the beginning and 104.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.78ms. Allocated memory is still 174.1MB. Free memory was 104.4MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 283.68ms. Allocated memory is still 174.1MB. Free memory was 102.3MB in the beginning and 90.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 197.37ms. Allocated memory is still 174.1MB. Free memory was 90.6MB in the beginning and 140.2MB in the end (delta: -49.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 20:10:41,908 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE