./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-zilu/benchmark26_linear.i --full-output --witness-type correctness_witness --validate ../results/cpachecker-verification-files/SV-COMP24_unreach-call/benchmark26_linear.yml/output/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-zilu/benchmark26_linear.i ../results/cpachecker-verification-files/SV-COMP24_unreach-call/benchmark26_linear.yml/output/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:08:06,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:08:06,324 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:08:06,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:08:06,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:08:06,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:08:06,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:08:06,367 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:08:06,367 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:08:06,368 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:08:06,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:08:06,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:08:06,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:08:06,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:08:06,369 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:08:06,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:08:06,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:08:06,370 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:08:06,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:08:06,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:08:06,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:08:06,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:08:06,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:08:06,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:08:06,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:08:06,373 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:08:06,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:08:06,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:08:06,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:08:06,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:08:06,374 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:08:06,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:08:06,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:08:06,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:08:06,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:08:06,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:08:06,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:08:06,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:08:06,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:08:06,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:08:06,377 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:08:06,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:08:06,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:08:06,377 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:08:06,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:08:06,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:08:06,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:08:06,636 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:08:06,636 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:08:06,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/benchmark26_linear.yml/output/witness-2.1.yml [2024-09-21 19:08:06,689 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:08:06,689 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:08:06,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-zilu/benchmark26_linear.i [2024-09-21 19:08:08,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:08:08,276 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:08:08,276 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-zilu/benchmark26_linear.i [2024-09-21 19:08:08,283 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/b85195f2e/78659a4acc65443a8e7477a35eb71d81/FLAGa7f9dcf64 [2024-09-21 19:08:08,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/b85195f2e/78659a4acc65443a8e7477a35eb71d81 [2024-09-21 19:08:08,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:08:08,298 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:08:08,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:08:08,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:08:08,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:08:08,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:08:06" (1/2) ... [2024-09-21 19:08:08,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182cddd0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:08, skipping insertion in model container [2024-09-21 19:08:08,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:08:06" (1/2) ... [2024-09-21 19:08:08,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b76ccea and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:08, skipping insertion in model container [2024-09-21 19:08:08,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:08:08" (2/2) ... [2024-09-21 19:08:08,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182cddd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08, skipping insertion in model container [2024-09-21 19:08:08,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:08:08" (2/2) ... [2024-09-21 19:08:08,321 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:08:08,322 INFO L1541 ArrayList]: Loop invariant at [L23-L25] ( ( x < y ) && ( ! ( y == x ) ) ) || ( ( ( ! ( y == x ) ) || ( ! ( x < y ) ) ) && ( ( x < y ) || ( y == x ) ) ) [2024-09-21 19:08:08,322 INFO L1541 ArrayList]: Function contract at [L14]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:08:08,322 INFO L1541 ArrayList]: Function contract at [L19]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:08:08,338 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:08:08,481 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-zilu/benchmark26_linear.i[868,881] [2024-09-21 19:08:08,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:08:08,517 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-21 19:08:08,557 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-zilu/benchmark26_linear.i[868,881] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-21 19:08:08,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:08:08,581 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:08:08,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08 WrapperNode [2024-09-21 19:08:08,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:08:08,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:08:08,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:08:08,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:08:08,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (1/1) ... [2024-09-21 19:08:08,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (1/1) ... [2024-09-21 19:08:08,603 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (1/1) ... [2024-09-21 19:08:08,616 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 [2024-09-21 19:08:08,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (1/1) ... [2024-09-21 19:08:08,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (1/1) ... [2024-09-21 19:08:08,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (1/1) ... [2024-09-21 19:08:08,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (1/1) ... [2024-09-21 19:08:08,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (1/1) ... [2024-09-21 19:08:08,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (1/1) ... [2024-09-21 19:08:08,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:08:08,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:08:08,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:08:08,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:08:08,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (1/1) ... [2024-09-21 19:08:08,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:08:08,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:08:08,659 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) [2024-09-21 19:08:08,661 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 [2024-09-21 19:08:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:08:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:08:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:08:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 19:08:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:08:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:08:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-21 19:08:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-21 19:08:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:08:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:08:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:08:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2024-09-21 19:08:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:08:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:08:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:08:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:08:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:08:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:08:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:08:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:08:08,765 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:08:08,769 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:08:08,797 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:08:08,880 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:08:08,894 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:08:08,947 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:08:08,947 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-21 19:08:08,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:08:08 BoogieIcfgContainer [2024-09-21 19:08:08,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:08:08,948 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:08:08,948 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:08:08,949 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:08:08,949 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:08:06" (1/4) ... [2024-09-21 19:08:08,950 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@11857c39 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:08:08, skipping insertion in model container [2024-09-21 19:08:08,950 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:08:08" (2/4) ... [2024-09-21 19:08:08,951 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@11857c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:08:08, skipping insertion in model container [2024-09-21 19:08:08,951 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:08" (3/4) ... [2024-09-21 19:08:08,952 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@11857c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:08:08, skipping insertion in model container [2024-09-21 19:08:08,952 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:08:08" (4/4) ... [2024-09-21 19:08:08,953 INFO L79 RefereeObserver]: Analyzing ICFG benchmark26_linear.i [2024-09-21 19:08:08,958 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-21 19:08:08,959 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-21 19:08:08,960 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 3 edges. [2024-09-21 19:08:08,960 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-3 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 6 edges. [2024-09-21 19:08:08,960 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:08:08,960 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-21 19:08:08,961 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-21 19:08:08,961 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-21 19:08:08,961 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-21 19:08:08,962 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 4 loop-free subgraphs from procedure entry to error location, 2 loop-free subgraphs from loop head to error location [2024-09-21 19:08:09,003 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-21 19:08:09,009 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:09,009 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:09,010 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:09,011 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:09,013 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,023 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-21 19:08:09,025 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,025 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:09,025 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:09,026 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:09,028 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:09,044 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:08:09,056 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:08:09,060 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:09,060 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:09,061 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:09,061 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:09,061 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,067 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:08:09,071 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,071 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:09,072 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:09,072 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:09,072 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:09,077 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:08:09,093 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 19:08:09,093 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:09,093 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:09,093 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:09,093 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:09,093 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,101 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-21 19:08:09,104 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,104 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:09,104 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:09,104 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:09,105 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:09,110 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-3 to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:08:09,120 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:08:09,124 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:09,124 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:09,125 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:09,125 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:09,125 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,126 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:08:09,126 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,126 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:09,126 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:09,126 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:09,126 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:09,131 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:08:09,139 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:08:09,141 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:09,141 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:09,141 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:09,141 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:09,142 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,145 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:08:09,148 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,149 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:09,150 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:09,150 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:09,150 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:09,155 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:08:09,165 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:08:09,165 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:09,166 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:09,166 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:09,166 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:09,166 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,175 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:08:09,175 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,175 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:09,175 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:09,175 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:09,175 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:09,180 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:08:09,189 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:08:09,190 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:09,190 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:09,190 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:09,190 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:09,190 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,193 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:08:09,193 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,193 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:09,193 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:09,193 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:09,194 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:09,196 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:08:09,205 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:08:09,205 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:09,205 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:09,206 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:09,206 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:09,206 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,208 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:08:09,208 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:09,208 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:09,208 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:09,208 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:09,209 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:09,228 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-21 19:08:09,229 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@11857c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 21.09 07:08:09, skipping insertion in model container [2024-09-21 19:08:09,229 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-21 19:08:09,231 INFO L158 Benchmark]: Toolchain (without parser) took 931.94ms. Allocated memory is still 159.4MB. Free memory was 88.0MB in the beginning and 113.8MB in the end (delta: -25.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:08:09,232 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 113.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:08:09,232 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:08:09,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.48ms. Allocated memory is still 159.4MB. Free memory was 88.0MB in the beginning and 74.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 19:08:09,233 INFO L158 Benchmark]: Boogie Preprocessor took 44.58ms. Allocated memory is still 159.4MB. Free memory was 74.7MB in the beginning and 73.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:08:09,234 INFO L158 Benchmark]: RCFGBuilder took 319.22ms. Allocated memory is still 159.4MB. Free memory was 72.7MB in the beginning and 130.1MB in the end (delta: -57.4MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-09-21 19:08:09,235 INFO L158 Benchmark]: Referee took 280.72ms. Allocated memory is still 159.4MB. Free memory was 130.1MB in the beginning and 113.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-21 19:08:09,241 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 16. 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 entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from loop head at line 23 to check that procedure precondition always holds at line 23. Annotation is valid for all loop-free paths from loop head at line 23 to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure main to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 23. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.11ms. Allocated memory is still 113.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.48ms. Allocated memory is still 159.4MB. Free memory was 88.0MB in the beginning and 74.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.58ms. Allocated memory is still 159.4MB. Free memory was 74.7MB in the beginning and 73.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 319.22ms. Allocated memory is still 159.4MB. Free memory was 72.7MB in the beginning and 130.1MB in the end (delta: -57.4MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Referee took 280.72ms. Allocated memory is still 159.4MB. Free memory was 130.1MB in the beginning and 113.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-21 19:08:09,272 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