This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:48:58,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:48:58,401 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:48:58,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:48:58,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:48:58,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:48:58,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:48:58,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:48:58,424 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:48:58,425 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:48:58,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:48:58,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:48:58,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:48:58,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:48:58,426 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:48:58,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:48:58,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:48:58,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:48:58,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:48:58,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:48:58,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:48:58,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:48:58,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:48:58,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:48:58,429 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:48:58,430 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:48:58,430 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:48:58,430 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:48:58,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:48:58,431 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:48:58,431 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:48:58,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:48:58,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:48:58,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:48:58,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:48:58,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:48:58,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:48:58,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:48:58,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:48:58,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:48:58,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:48:58,436 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:48:58,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:48:58,436 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:48:58,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:48:58,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:48:58,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:48:58,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:48:58,703 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:48:58,704 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound20.c [2024-09-25 11:49:00,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:49:00,278 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:49:00,279 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound20.c [2024-09-25 11:49:00,286 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/6de19a53d/d7d19ff66df94caf9a3f8f99b689f5f1/FLAGbd3a951fd [2024-09-25 11:49:00,304 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/6de19a53d/d7d19ff66df94caf9a3f8f99b689f5f1 [2024-09-25 11:49:00,307 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:49:00,308 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:49:00,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/ps2-ll_unwindbound20.yml/witness-2.1.yml [2024-09-25 11:49:00,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:49:00,358 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:49:00,360 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:49:00,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:49:00,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:49:00,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:49:00" (1/2) ... [2024-09-25 11:49:00,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1778c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:00, skipping insertion in model container [2024-09-25 11:49:00,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:49:00" (1/2) ... [2024-09-25 11:49:00,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@646a827e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:00, skipping insertion in model container [2024-09-25 11:49:00,367 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 11:49:00" (2/2) ... [2024-09-25 11:49:00,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1778c1 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:49:00, skipping insertion in model container [2024-09-25 11:49:00,368 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 11:49:00" (2/2) ... [2024-09-25 11:49:00,374 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:49:00,374 INFO L1541 ArrayList]: Loop invariant at [L27-L36] ((((__int128) x * 2) == (y + ((__int128) y * y))) && (\old(counter) == 0)) [2024-09-25 11:49:00,375 INFO L1541 ArrayList]: Function contract at [L9]: requires (1 <= cond), ensures ((counter == \old(counter)) && (1 <= cond)) [2024-09-25 11:49:00,375 INFO L1541 ArrayList]: Function contract at [L18]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-25 11:49:00,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:49:00,525 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-scaling/ps2-ll_unwindbound20.c[454,467] [2024-09-25 11:49:00,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:49:00,549 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 11:49:00,592 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-scaling/ps2-ll_unwindbound20.c[454,467] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-25 11:49:00,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:49:00,621 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:49:00,622 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:49:00 WrapperNode [2024-09-25 11:49:00,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:49:00,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:49:00,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:49:00,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:49:00,637 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 25.09 11:49:00" (1/1) ... [2024-09-25 11:49:00,637 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 25.09 11:49:00" (1/1) ... [2024-09-25 11:49:00,643 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 25.09 11:49:00" (1/1) ... [2024-09-25 11:49:00,656 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 11:49:00,656 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 25.09 11:49:00" (1/1) ... [2024-09-25 11:49:00,657 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 25.09 11:49:00" (1/1) ... [2024-09-25 11:49:00,660 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 25.09 11:49:00" (1/1) ... [2024-09-25 11:49:00,663 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 25.09 11:49:00" (1/1) ... [2024-09-25 11:49:00,671 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 25.09 11:49:00" (1/1) ... [2024-09-25 11:49:00,672 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 25.09 11:49:00" (1/1) ... [2024-09-25 11:49:00,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:49:00,675 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:49:00,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:49:00,675 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:49:00,676 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 25.09 11:49:00" (1/1) ... [2024-09-25 11:49:00,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:49:00,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:49:00,708 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 11:49:00,710 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 11:49:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:49:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:49:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:49:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:49:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-25 11:49:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:49:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:49:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:49:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:49:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:49:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:49:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:49:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:49:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:49:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:49:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:49:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:49:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:49:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:49:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:49:00,811 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:49:00,813 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:49:00,850 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 11:49:00,932 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 11:49:00,948 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:49:00,978 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:49:00,978 INFO L317 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-25 11:49:00,979 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:49:00 BoogieIcfgContainer [2024-09-25 11:49:00,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:49:00,979 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:49:00,980 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:49:00,982 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:49:00,982 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:49:00" (1/4) ... [2024-09-25 11:49:00,982 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2298e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:49:00, skipping insertion in model container [2024-09-25 11:49:00,982 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 11:49:00" (2/4) ... [2024-09-25 11:49:00,983 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2298e26 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:49:00, skipping insertion in model container [2024-09-25 11:49:00,983 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 25.09 11:49:00" (3/4) ... [2024-09-25 11:49:00,983 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2298e26 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:49:00, skipping insertion in model container [2024-09-25 11:49:00,983 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:49:00" (4/4) ... [2024-09-25 11:49:00,984 INFO L79 RefereeObserver]: Analyzing ICFG ps2-ll_unwindbound20.c [2024-09-25 11:49:00,988 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-25 11:49:00,988 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-4 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-25 11:49:00,989 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-4 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-25 11:49:00,989 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-25 11:49:00,989 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 11:49:00,989 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-25 11:49:00,989 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 11:49:00,989 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 11:49:00,990 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-4 to ERROR_LOC mainErr3ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-25 11:49:00,990 INFO L131 InvariantChecker]: Will check 3 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, 3 loop-free subgraphs from loop head to error location [2024-09-25 11:49:01,062 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-25 11:49:01,065 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:01,065 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:01,066 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:01,066 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:01,069 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,111 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-25 11:49:01,113 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,113 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:01,113 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:01,113 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:01,120 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:01,134 INFO L520 InvariantChecker]: The annotation(s) from loop head L27-4 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:49:01,149 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-25 11:49:01,149 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:01,150 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:01,150 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:01,150 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:01,150 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,156 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-25 11:49:01,156 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,156 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:01,157 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:01,157 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:01,157 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:01,159 INFO L520 InvariantChecker]: The annotation(s) from loop head L27-4 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:49:01,168 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-25 11:49:01,170 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:01,171 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:01,171 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:01,171 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:01,171 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,174 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-25 11:49:01,175 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,176 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:01,176 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:01,176 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:01,176 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:01,181 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:49:01,191 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-25 11:49:01,192 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:01,192 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:01,192 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:01,193 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:01,193 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,211 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-25 11:49:01,211 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,211 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:01,211 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:01,211 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:01,212 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:01,220 INFO L520 InvariantChecker]: The annotation(s) from loop head L27-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:49:01,232 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:49:01,235 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:01,235 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:01,235 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:01,236 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:01,236 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,237 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:49:01,237 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,237 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:01,237 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:01,237 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:01,240 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:01,242 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:49:01,254 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:49:01,255 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:01,255 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:01,255 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:01,255 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:01,255 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,258 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 11:49:01,258 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,258 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:01,258 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:01,259 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:01,259 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:01,261 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:49:01,281 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:49:01,281 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:01,282 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:01,282 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:01,282 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:01,282 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,284 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:49:01,287 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,287 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:01,287 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:01,287 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:01,287 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:01,290 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:49:01,303 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-25 11:49:01,304 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:01,304 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:01,304 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:01,305 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:01,305 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,326 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-25 11:49:01,328 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:01,329 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:01,330 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:01,330 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:01,331 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:01,334 INFO L520 InvariantChecker]: The annotation(s) from loop head L27-4 to error location mainErr3ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:49:01,337 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-25 11:49:01,351 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2298e26 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:49:01, skipping insertion in model container [2024-09-25 11:49:01,352 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:49:01,354 INFO L158 Benchmark]: Toolchain (without parser) took 995.38ms. Allocated memory is still 161.5MB. Free memory was 128.1MB in the beginning and 125.0MB in the end (delta: 3.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-09-25 11:49:01,354 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:49:01,355 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 161.5MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:49:01,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.55ms. Allocated memory is still 161.5MB. Free memory was 128.0MB in the beginning and 114.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:49:01,357 INFO L158 Benchmark]: Boogie Preprocessor took 51.30ms. Allocated memory is still 161.5MB. Free memory was 114.1MB in the beginning and 112.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:49:01,357 INFO L158 Benchmark]: RCFGBuilder took 303.99ms. Allocated memory is still 161.5MB. Free memory was 112.0MB in the beginning and 99.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 11:49:01,358 INFO L158 Benchmark]: Referee took 372.65ms. Allocated memory is still 161.5MB. Free memory was 99.4MB in the beginning and 125.0MB in the end (delta: -25.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-09-25 11:49:01,361 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 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 27 to loop head at line 27. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 27. Annotation is valid for all loop-free paths from loop head at line 27 to check that procedure precondition always holds at line 28. 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 entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 27 to check that procedure precondition always holds at line 27. Annotation is valid for all loop-free paths from loop head at line 27 to exit of procedure main. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 161.5MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.55ms. Allocated memory is still 161.5MB. Free memory was 128.0MB in the beginning and 114.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.30ms. Allocated memory is still 161.5MB. Free memory was 114.1MB in the beginning and 112.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.99ms. Allocated memory is still 161.5MB. Free memory was 112.0MB in the beginning and 99.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 372.65ms. Allocated memory is still 161.5MB. Free memory was 99.4MB in the beginning and 125.0MB in the end (delta: -25.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-25 11:49:01,391 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...