./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/ps2-ll.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/ps2-ll.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fb1cb0b9 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/nla-digbench/ps2-ll.c ../results/automizer-verification-files/SV-COMP24_unreach-call/ps2-ll.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:46:54,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:46:55,010 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:46:55,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:46:55,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:46:55,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:46:55,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:46:55,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:46:55,043 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:46:55,044 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:46:55,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:46:55,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:46:55,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:46:55,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:46:55,046 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:46:55,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:46:55,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:46:55,047 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:46:55,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:46:55,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:46:55,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:46:55,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:46:55,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:46:55,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:46:55,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:46:55,050 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:46:55,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:46:55,051 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:46:55,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:46:55,051 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:46:55,051 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:46:55,052 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:46:55,052 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:46:55,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:55,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:46:55,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:46:55,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:46:55,054 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:46:55,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:46:55,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:46:55,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:46:55,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:46:55,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:46:55,056 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:46:55,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:46:55,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:46:55,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:46:55,340 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:46:55,341 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:46:55,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/ps2-ll.yml/witness-2.1.yml [2024-09-25 11:46:55,433 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:46:55,434 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:46:55,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench/ps2-ll.c [2024-09-25 11:46:56,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:46:56,962 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:46:56,962 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/ps2-ll.c [2024-09-25 11:46:56,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/e01d5d11d/4107675e0ab6423e9df1ee6056bc8645/FLAG21545dab9 [2024-09-25 11:46:57,353 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/e01d5d11d/4107675e0ab6423e9df1ee6056bc8645 [2024-09-25 11:46:57,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:46:57,356 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:46:57,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:57,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:46:57,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:46:57,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:55" (1/2) ... [2024-09-25 11:46:57,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adcc383 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:57, skipping insertion in model container [2024-09-25 11:46:57,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:55" (1/2) ... [2024-09-25 11:46:57,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5afa4344 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:57, skipping insertion in model container [2024-09-25 11:46:57,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:57" (2/2) ... [2024-09-25 11:46:57,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adcc383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57, skipping insertion in model container [2024-09-25 11:46:57,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:57" (2/2) ... [2024-09-25 11:46:57,379 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:46:57,380 INFO L1541 ArrayList]: Loop invariant at [L26-L35] (((__int128) x * 2) == (y + ((__int128) y * y))) [2024-09-25 11:46:57,380 INFO L1541 ArrayList]: Function contract at [L9]: requires (1 <= cond), ensures (1 <= cond) [2024-09-25 11:46:57,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:46:57,524 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/nla-digbench/ps2-ll.c[454,467] [2024-09-25 11:46:57,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:57,548 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 11:46:57,585 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/nla-digbench/ps2-ll.c[454,467] Start Parsing Local [2024-09-25 11:46:57,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:57,607 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:46:57,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57 WrapperNode [2024-09-25 11:46:57,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:57,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:46:57,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:46:57,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:46:57,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (1/1) ... [2024-09-25 11:46:57,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (1/1) ... [2024-09-25 11:46:57,630 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (1/1) ... [2024-09-25 11:46:57,644 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 [2024-09-25 11:46:57,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (1/1) ... [2024-09-25 11:46:57,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (1/1) ... [2024-09-25 11:46:57,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (1/1) ... [2024-09-25 11:46:57,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (1/1) ... [2024-09-25 11:46:57,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (1/1) ... [2024-09-25 11:46:57,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (1/1) ... [2024-09-25 11:46:57,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:46:57,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:46:57,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:46:57,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:46:57,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (1/1) ... [2024-09-25 11:46:57,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:57,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:46:57,747 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) [2024-09-25 11:46:57,753 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 [2024-09-25 11:46:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:46:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:46:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:46:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:46:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-25 11:46:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:46:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:46:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:46:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:46:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:46:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:46:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:46:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:46:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:46:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:46:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:46:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:46:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:46:57,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:46:57,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:46:57,876 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:46:57,880 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:46:58,005 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 11:46:58,024 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:46:58,050 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:46:58,051 INFO L317 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-25 11:46:58,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:58 BoogieIcfgContainer [2024-09-25 11:46:58,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:46:58,052 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:46:58,052 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:46:58,053 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:46:58,053 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:55" (1/4) ... [2024-09-25 11:46:58,053 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56939e00 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:58, skipping insertion in model container [2024-09-25 11:46:58,053 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:57" (2/4) ... [2024-09-25 11:46:58,054 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56939e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:58, skipping insertion in model container [2024-09-25 11:46:58,054 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:57" (3/4) ... [2024-09-25 11:46:58,054 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56939e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:58, skipping insertion in model container [2024-09-25 11:46:58,054 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:58" (4/4) ... [2024-09-25 11:46:58,055 INFO L79 RefereeObserver]: Analyzing ICFG ps2-ll.c [2024-09-25 11:46:58,059 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-25 11:46:58,060 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L26-3 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 7 edges. [2024-09-25 11:46:58,060 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L26-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-25 11:46:58,060 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-25 11:46:58,060 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L26-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:46:58,060 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-25 11:46:58,061 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-25 11:46:58,061 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from loop head to error location, 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 [2024-09-25 11:46:58,102 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-25 11:46:58,103 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:58,104 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:58,104 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:58,105 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:58,107 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,141 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-25 11:46:58,145 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,146 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:58,147 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:58,148 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:58,155 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:58,173 INFO L520 InvariantChecker]: The annotation(s) from loop head L26-3 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:46:58,188 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:46:58,189 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:58,189 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:58,189 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:58,189 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:58,190 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,193 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:46:58,193 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,194 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:58,194 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:58,195 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:58,195 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:58,197 INFO L520 InvariantChecker]: The annotation(s) from loop head L26-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:46:58,207 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-25 11:46:58,208 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:58,208 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:58,208 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:58,208 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:58,208 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,211 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-25 11:46:58,211 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,211 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:58,212 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:58,212 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:58,212 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:58,217 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:46:58,227 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-25 11:46:58,228 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:58,228 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:58,228 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:58,228 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:58,229 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,242 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-25 11:46:58,242 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,243 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:58,243 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:58,243 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:58,243 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:58,246 INFO L520 InvariantChecker]: The annotation(s) from loop head L26-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:46:58,261 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:46:58,261 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:58,262 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:58,262 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:58,262 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:58,266 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,270 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 11:46:58,274 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,275 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:58,275 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:58,278 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:58,279 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:58,283 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:46:58,297 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:46:58,297 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:58,297 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:58,297 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:58,298 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:58,298 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,299 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:46:58,300 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:58,300 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:58,300 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:58,300 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:58,300 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:58,302 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:46:58,306 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-25 11:46:58,306 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56939e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:46:58, skipping insertion in model container [2024-09-25 11:46:58,306 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:46:58,308 INFO L158 Benchmark]: Toolchain (without parser) took 952.36ms. Allocated memory is still 180.4MB. Free memory was 111.5MB in the beginning and 123.7MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:58,309 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 109.1MB. Free memory was 82.2MB in the beginning and 82.0MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:58,309 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 180.4MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:58,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.61ms. Allocated memory is still 180.4MB. Free memory was 111.3MB in the beginning and 98.2MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:58,311 INFO L158 Benchmark]: Boogie Preprocessor took 60.28ms. Allocated memory is still 180.4MB. Free memory was 98.2MB in the beginning and 152.1MB in the end (delta: -53.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-09-25 11:46:58,312 INFO L158 Benchmark]: RCFGBuilder took 381.39ms. Allocated memory is still 180.4MB. Free memory was 152.1MB in the beginning and 139.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 11:46:58,313 INFO L158 Benchmark]: Referee took 254.84ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 123.7MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:58,316 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 exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 26 to loop head at line 26. 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 11. Annotation is valid for all loop-free paths from loop head at line 26 to check that procedure precondition always holds at line 26. Annotation is valid for all loop-free paths from loop head at line 26 to check that procedure precondition always holds at line 27. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 26. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.10ms. Allocated memory is still 109.1MB. Free memory was 82.2MB in the beginning and 82.0MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.31ms. Allocated memory is still 180.4MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.61ms. Allocated memory is still 180.4MB. Free memory was 111.3MB in the beginning and 98.2MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.28ms. Allocated memory is still 180.4MB. Free memory was 98.2MB in the beginning and 152.1MB in the end (delta: -53.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * RCFGBuilder took 381.39ms. Allocated memory is still 180.4MB. Free memory was 152.1MB in the beginning and 139.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 254.84ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 123.7MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-25 11:46:58,344 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